Recording device and recording device control method

Abstract

The present invention provides a recording device and a control method for the recording device, which can prevent the first maintenance unit and the recording unit from interfering with each other even when the positions become uncertain and the first maintenance unit and the recording unit are moved to perform an origin search operation. The recording unit has a nozzle surface. The first moving mechanism moves the recording unit in a first direction intersecting the nozzle surface. The second moving mechanism moves the first maintenance unit in a second direction along the nozzle surface. The recording unit can move to a recording position for recording a medium and a first avoidance position away from the recording position. The first maintenance unit can move to a maintenance position for performing maintenance on the nozzle surface and a second avoidance position away from the maintenance position. When an error occurs, the control unit causes the recording unit to avoid in the first direction away from the first maintenance unit (60). Then, the first maintenance unit is caused to avoid in the second direction.

Description

Technical Field

[0001] The present invention relates to a recording device including a recording unit for recording on a medium such as paper, and a control method of the recording device. Background Art

[0002] For example, Patent Document 1 discloses a recording device having a head for ejecting liquid onto a medium. The recording device has a recording unit having a recording head, and the recording unit can be raised and lowered. When the recording unit is raised and lowered, the recording head of the recording unit is guided to move in a third direction by two guide shafts.

[0003] Patent Document 1: Japanese Patent Application Publication No. 2020-49788

[0004] However, when a jam error occurs, such as a jam of the medium, or a power failure occurs when the power plug is unplugged while the recording device is powered on, the position of the recording unit may become unstable. In this case, there is a technical problem that when the recording unit and the maintenance unit move for the origin search operation, the maintenance unit may rub against the nozzle surface of the recording head and damage the recording head of the recording unit. Summary of the invention

[0005] A recording device that solves the above-mentioned technical problem comprises: a recording unit, which has a nozzle surface with an opening of a nozzle, and records on a medium by ejecting liquid from the nozzle; a first maintenance unit, which performs maintenance on the recording unit; a first moving mechanism, which moves the recording unit in a first direction intersecting the nozzle surface; a second moving mechanism, which moves the first maintenance unit in a second direction along the nozzle surface; and a control unit, which controls the actions of the first moving mechanism and the second moving mechanism, the recording unit can move to a recording position for recording on a medium and a first avoidance position avoidance from the recording position, the first maintenance unit can move to a maintenance position for performing maintenance on the nozzle surface and a second avoidance position avoidance from the maintenance position, and in the event of an error, the control unit causes the recording unit to avoid along the first direction away from the first maintenance unit, and causes the first maintenance unit to avoid along the second direction after the recording unit has avoided.

[0006] A control method for a recording device that solves the above-mentioned technical problem, the recording device comprising: a recording unit having a nozzle face in which a nozzle is opened, and recording on a medium by ejecting liquid from the nozzle; a first maintenance unit that performs maintenance on the recording unit; a first moving mechanism that moves the recording unit in a first direction intersecting the nozzle face to a recording position for recording on the medium and a first avoidance position away from the recording position; and a second moving mechanism that moves the first maintenance unit in a second direction along the nozzle face to a maintenance position for performing maintenance on the nozzle face and a second avoidance position away from the maintenance position. In the control method for the recording device, in the event of an error, the recording unit is avoided along the first direction in a manner away from the first maintenance unit, and the first maintenance unit is avoided along the second direction after the recording unit has avoided.

[0007] A control method for a recording device that solves the above-mentioned technical problem, the recording device comprising: a recording unit having a nozzle surface where a nozzle opens, and recording on a medium by ejecting liquid from the nozzle; a first maintenance unit that performs maintenance on the recording unit; a second maintenance unit that performs maintenance on the recording unit differently from the first maintenance unit; a first moving mechanism that moves the recording unit in a first direction intersecting the nozzle surface to a recording position for recording on a medium and a first avoidance position away from the recording position; a second moving mechanism that moves the first maintenance unit in a second direction along the nozzle surface to a maintenance position for performing maintenance on the nozzle surface and a second avoidance position away from the maintenance position; and a third moving mechanism that moves the second maintenance unit in a third direction orthogonal to the first direction and the second direction. In the control method for the recording device, in the event of an error, the recording unit is avoided along the first direction in a manner away from the first maintenance unit, the first maintenance unit is avoided along the second direction after the recording unit is avoided, and the second maintenance unit is avoided along the third direction from the moving area of ​​the first maintenance unit while the first maintenance unit is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a perspective view showing a recording device according to an embodiment.

[0009] Figure 2 It is a front cross-sectional schematic diagram showing the internal structure of the recording device.

[0010] Figure 3 It is a three-dimensional diagram showing a motion unit.

[0011] Figure 4 This is a schematic plan view of the recording unit and the cap unit as viewed from the +B direction.

[0012] Figure 5It is a perspective view showing a recording section and an adjustment unit.

[0013] Figure 6 It is a front schematic diagram showing the recording unit and the first maintenance unit when they are located at the recording position.

[0014] Figure 7 It is a front schematic diagram showing the recording unit and the first maintenance unit in the standby position.

[0015] Figure 8 It is a front schematic diagram showing the recording section at the standby position and the first maintenance section at the capping position.

[0016] Fig. 9 It is a front schematic diagram showing a state where the recording unit and the first maintenance unit are in a covered state.

[0017] Fig.10 It is a side view schematic diagram showing the recording portion and the cap portion in a closed state.

[0018] Fig.11 It is a side view schematic diagram explaining the structure of the wiping part and the wiping action.

[0019] Fig.12 It is a side view schematic diagram explaining the wiping action of the wiping part.

[0020] Fig.13 It is a front schematic diagram illustrating an interference area where the first movement area of ​​the recording unit and the second movement area of ​​the first maintenance unit overlap.

[0021] Fig.14 1 is a schematic plan view illustrating an overlapping area where the second moving area of ​​the first maintenance unit overlaps the third moving area of ​​the second maintenance unit.

[0022] Fig.15 It is a front schematic diagram showing the recording unit and the first maintenance unit when an error occurs.

[0023] Fig.16 It is a front schematic diagram for explaining the movement of the recording unit 20 during the recovery operation.

[0024] Fig.17 It is a front schematic diagram explaining the movement of the first maintenance unit during the recovery operation.

[0025] Fig.18 This is a block diagram showing the electrical structure of the recording device.

[0026] Fig.19 is a flowchart showing the recovery process.

[0027] Fig. 20 It is a front schematic diagram for explaining the positional relationship between the recording section and the interference region of the first maintenance section in the modified example.

[0028] Description of Reference Numerals

[0029] 10 ... recording device, 11 ... device body, 12 ... printing unit, 12A ... recording mechanism, 14 ... operation panel, 14A ... display unit, 15 ... box, 15A ... handle, 16 ... first cover door, 16A ... handle, 16T ... feed tray, 17 ... first cover door, 17A ... handle, 18 ... first cover door, 18A ... handle, 19 ... discharge unit, 19A ... discharge tray, 19B ... loading surface, 20 ... recording unit, 20H ... recording head, 20N ... nozzle surface, 20A ... plate unit, 20U ... unit head, 20G ... pin unit, 21 ... pickup roller, 22 ... conveying roller pair, 23 ... conveying roller pair, 24 ... manual feed tray, 25 ... conveying unit, 25A ... pulley, 25B ... conveying belt, 26 ... conveying roller pair, 27 ... stopper , 28... rack, 29... guide roller, 31... first moving mechanism, 33... main frame, 34... side frame, 34A... through hole, 35... horizontal frame, 36... guide member, 37... guide rail, 38, 39... guide rail for replacement, 41... lifting motor, 43... pinion (drive gear), 46... adjustment unit, 47... camshaft, 48... eccentric cam, 49... motor, 51... holder, 51A... through hole, 52... bracket, 52A... support plate, 53... adjustment screw, 54... detected member, 55... position sensor, 60... first maintenance unit, 62... cap unit, 63... second moving mechanism, 64... cap, 65... first spring, 66... ​​cap holder, 70... second moving mechanism, 70A, 70 B… rack and pinion mechanism, 71… rack, 71A… tooth, 72… pinion (drive gear), 72A… tooth, 73… guide rail, 74… guide roller, 75… first slide motor, 76… rotating shaft, 77… piping, 78… pump, 79… pump motor, 80… second maintenance unit, 81… wiping member, 82… wiping unit, 82A… slider, 83… third moving mechanism, 84… guide rail, 90… door sensor, 91… first encoder, 92… second encoder, 93… third encoder, 94… fourth encoder, 100… control unit, 101… liquid storage unit, 102… waste liquid storage unit, 110… computer, 111… first counter, 112… second counter, 113… third counter, 114… Fourth counter, 115...jam detection unit, N...nozzle, T...conveying path, T1...conveying channel, T2...conveying channel, T3...conveying channel, T4...conveying channel, T5...reversing channel, A...second direction (moving direction of the first maintenance unit), M...medium, B...first direction (moving direction of the recording unit (lifting and lowering direction)), X...width direction (third direction) (moving direction of the second maintenance unit), Z...vertical direction, PH1...avoidance position (origin position), PH2...standby position, PH3...capping position, PH4...recording position, PH5...wiping position, PC1...avoidance position, PC2...capping position, PC3...error position, PC4...position, PW1...avoidance position, PW2...wiping position,SE1...first sensor, SE2...second sensor, SE3...third sensor, SE4...media width sensor, PR...program, PD...position data, MA1...first moving area, MA2...second moving area, MA3...third moving area, IA...interference area, OA...overlapping area. DETAILED DESCRIPTION

[0030] Hereinafter, the embodiment will be described with reference to the drawings. The recording device 10 is, for example, a multifunction machine. The recording device 10 has multiple functions including a scanning function, a copying function, and a printing function. It should be noted that the recording device 10 may also have a facsimile function.

[0031] In the accompanying drawings, it is assumed that the recording device 10 is placed on a horizontal setting surface. In the Z axis orthogonal to the setting surface of the recording device 10, the recording device 10 side is set as the +Z side relative to the setting surface, and the opposite side is set as the -Z side, and the two axes orthogonal to the Z axis are set as the X axis and the Y axis, respectively. In addition, the directions parallel to the X axis, the Y axis, and the Z axis are respectively referred to as the X axis direction, the Y axis direction, and the Z axis direction. The X axis direction includes two directions, the +X direction and the -X direction. The Y axis direction includes two directions, the +Y direction and the -Y direction. The Z axis direction includes two directions, the +Z direction and the -Z direction. The Z axis direction, which is the direction parallel to the Z axis, is also referred to as the vertical direction Z. The X axis direction is the depth direction when the recording device 10 is observed from the front. Since the X axis direction is the width direction of the medium M, it is also referred to as the width direction X. The front of the recording device 10 is the side of the operating unit 14 that the user operates to issue instructions to the recording device 10. In addition, the X axis is parallel to the disassembly direction of the box 15 described later. The X axis is parallel to the depth direction of the recording device 10. Therefore, the X-axis direction is also referred to as the depth direction X.

[0032] Regarding the configuration of the recording device 10

[0033] like Figure 1 As shown in FIG. 1 , the recording device 10 is, for example, a multifunction printer. The recording device 10 includes a device body 11 in a rectangular parallelepiped shape. The recording device 10 includes a printing unit 12 formed by the device body 11 and an image reading unit 13 disposed above the printing unit 12. The device body 11 has a conveying path T (see FIG. 1 ) for conveying a medium M such as paper. Figure 2 ).

[0034] The image reading section 13 is configured to read an image of a document D. The image reading section 13 includes a reading section 13A for reading the document D and an automatic document feeding section 13B disposed on the upper side of the reading section 13A. The automatic document feeding section 13B feeds the document D placed on a document tray 13C to the reading section 13A. The reading section 13A reads the document D and discharges the read document D to a discharge tray 13D. In addition, the reading section 13A also has a flatbed reading function for reading the document D placed on a document table, which is exposed when the automatic document feeding section 13B, which also serves as a document table cover, is opened.

[0035] The recording device 10 may include an operation unit 14 in the device body 11. The operation unit 14 may include, for example, a display unit 14A formed of a touch panel. The user can issue instructions to the recording device 10 by touching the display unit 14A. It should be noted that the operation unit 14 may also include operation buttons.

[0036] The recording device 10 may also include a box 15 capable of storing a plurality of media M. The box 15 includes one or more layers ( Figure 1 The cassette 15 is inserted into the lower part of the apparatus body 11 in a state where it can be detached by sliding in the X-axis direction. For example, media M of different sizes or types are stored in the plurality of cassettes 15. The cassette 15 has a handle 15A on which a user can hang his fingers when pulling it out.

[0037] like Figure 1 , Figure 2 As shown, the device body 11 has a plurality of cover doors 16 to 18 on its side surface 11S. The cover doors 16 to 18 can be used to make the conveying path T (see Figure 2 ) is opened and closed between a first state in which the conveying path T is exposed and a second state in which the conveying path T is covered. The plurality of cover doors 16 to 18 have handles 16A to 18A for users to open and close. The first cover door 16 includes a feed tray 16T on which the medium M can be placed. The feed tray 16T is mounted on the first cover door 16 in an openable and closable manner. The feed tray 16T has a handle 16B for users to open and close.

[0038] like Figure 1 As shown, the device body 11 has a medium M (refer to Figure 2 The recording unit 20 performs recording on the medium M fed from the cassette 15 and the medium M fed from the feed tray 16T. A liquid storage unit 101 (see Figure 2 ). The recording unit 20 performs recording on the medium M using liquid such as ink supplied from the liquid storage unit 101 .

[0039] The discharge unit 19 is provided between the apparatus body 11 and the image reading unit 13. The discharge unit 19 includes a discharge tray 19A constituting the bottom thereof. The discharge tray 19A is a plate-shaped member, and the discharged medium M (see Figure 2 ) are loaded on the discharge tray 19A. The discharge tray 19A is inclined at a predetermined angle so that the downstream side of the discharge direction of the recorded medium M is higher than the upstream side.

[0040] For example, a jam may occur during printing, in which the medium M is blocked in the middle of the conveying path T. In this case, the display unit 14A displays information indicating that a jam has occurred and the location where the jam has occurred. The user opens the cover door 16 to 18 corresponding to the location where the jam has occurred, in accordance with the instructions displayed on the display unit 14A, to expose the conveying path T, and performs a jam elimination operation to remove the medium M blocked in the conveying path T. When such a jam is detected, the recording device 10 stops urgently. As long as one of the covers 16 to 18 is in the open state, the recording device 10 enables the interlock function. When the user who has eliminated the jam closes the cover door 16, the door sensor 90 (refer to Fig.18 ) When it is detected that all the multiple cover doors 16~18 are in the closed state, the recording device 10 releases the interlock and returns to a state where it can perform specified actions including recording actions.

[0041] Next, refer to Figure 2 The internal structure of the recording device 10 will be described.

[0042] The recording device 10 includes a recording mechanism 12A constituting the printing unit 12 in the device body 11. The recording mechanism 12A includes a transport system mechanism for transporting the medium M, a recording system mechanism for recording on the medium M, and a maintenance system mechanism for maintaining the recording unit 20.

[0043] The recording device 10 includes a transport path T for transporting the medium M to be recorded by the recording unit 20. The medium M passes through the recording unit 20. Figure 2 The medium M is transported along the transport path T shown by the dotted line in the middle. The AB coordinate system shown in the YZ plane is an orthogonal coordinate system. The A direction is the transport direction of the medium M in the area opposite to the recording head 20H of the recording unit 20 in the transport path T. The direction toward the upstream of the transport direction is called the -A direction, and the direction toward the downstream is called the +A direction. In the present embodiment, the A direction is set to be a direction inclined in such a manner that the +A direction is located closer to the +Z direction than the -A direction. Specifically, it is inclined in the range of 50° to 70° relative to the horizontal direction, and more specifically, it is inclined at approximately 60°. In this way, at the recording position PH4 where recording is performed by the recording unit 20, the transport direction of the medium M is an inclined direction that intersects both the horizontal direction and the vertical direction Z.

[0044] like Figure 2 As shown, the recording unit 20 moves in the direction opposite to the conveying unit 25, that is, the B direction. The recording unit 20 of the present embodiment reciprocates in a moving direction inclined at a predetermined angle relative to the horizontal plane. The B direction is an example of a moving direction in which the recording unit 20 moves. That is, the B direction is the moving direction of the recording unit 20 when it moves forward or backward relative to the conveying unit 25. The direction in which the recording head 20H approaches the conveying path T in the B direction is called the +B direction, and the direction in which the recording head 20H moves away from the conveying path T is called the -B direction. The -B direction is a direction toward the upper side along the direction in which the recording head 20H moves away from the conveying unit 25. The B direction is a direction in which the recording unit 20 is displaced, and is a direction that includes a component of the Z direction as a height direction. In the present embodiment, the B direction is set to be a direction inclined in such a manner that the -B direction is located closer to the +Z direction than the +B direction, and is orthogonal to the A direction.

[0045] The recording unit 20 is configured to be able to Figure 2 The avoidance position PH1 shown by the double-dotted line is Figure 2 The recording unit 20 moves between the recording position PH4 shown by the solid line. The avoidance position PH1 is an example of the first avoidance position. The recording unit 20 can move to a plurality of positions including at least the avoidance position PH1 and the recording position PH4 by moving in the B direction. The moving direction of the recording unit 20 is also referred to as the lifting direction because it is accompanied by a displacement in the vertical direction Z of the recording unit 20 and is accompanied by an upward and downward movement direction. It should be noted that the moving direction of the recording unit 20 is not limited to a direction that forms a specified angle with respect to the horizontal, but may also be a horizontal direction or a vertical direction Z. It should be noted that in this example, the moving direction of the recording unit 20, i.e., the B direction, is also referred to as the first direction B.

[0046] When the recording unit 20 is located at the recording position PH4, the recording head 20H ejects liquid such as ink onto the portion of the medium M supported by the transport unit 25. Thus, the recording unit 20 records information such as an image on the medium M. The recording device 10 includes a first sensor SE1 capable of detecting the recording unit 20 located at the avoidance position PH1. The first sensor SE1 is configured to detect the recording unit 20 when located at the avoidance position PH1. The avoidance position PH1 detected by the first sensor SE1 is also the origin position when measuring the position of the recording unit 20 on the moving path.

[0047] The recording device 10 has the above-mentioned discharge unit 19 for discharging the medium M on which information is recorded, at the upper part of the device body 11 of the rectangular parallelepiped shape. The device body 11 has a space portion in which the medium M discharged to the discharge unit 19 can be stacked on the loading surface 19B of the discharge tray 19A. In addition, at the lower part of the device body 11, a plurality of boxes 15 are arranged in a detachable state. The plurality of boxes 15 store the medium M. The medium M stored in each box 15 is transported along the transport path T by the pickup roller 21 and the transport roller pair 22, 23. The transport path T1 extending from the external device and the transport path T2 extending from the feed tray 16T provided in the device body 11 merge at the transport path T.

[0048] Furthermore, a conveying unit 25, a plurality of conveying roller pairs 26, a plurality of flappers 27, and a medium width sensor SE4 for detecting the width of the medium M in the X direction are arranged at positions along the conveying path T. The conveying unit 25 supports a portion of the medium M located at a recording position facing the recording unit 20 and conveys the medium M. The flapper 27 has a function of switching a path for conveying the medium M.

[0049] The conveying path T forms a curved portion in the area opposite to the medium width sensor SE4, and extends in the direction A in the area downstream of the curved portion. In the conveying path T, a conveying channel T3 and a conveying channel T4 toward the discharge section 19 and a reversing channel T5 for reversing the front and back of the medium M are provided downstream of the conveying unit 25. In the discharge section 19, an unillustrated discharge tray is provided corresponding to the conveying channel T4. It should be noted that the reversing channel T5 is a path into which the medium M is fed before recording on the second side after recording on the first side is completed when double-sided recording is performed. The medium M is reversed in the reversing channel T5, and is fed to the recording position through the conveying path T again as in the case of recording on the first side, so that recording is performed on the second side.

[0050] like Figure 2 As shown, the conveying unit 25 supports the medium M during the conveying process (see Figure 2 The conveying unit 25 may include two pulleys 25A, an endless conveying belt 25B wound around the two pulleys 25A, and a conveying motor 104 for driving the pulleys 25A (see Fig.18 ). The medium M is transported at a position opposite to the recording unit 20 while being adsorbed to the belt surface of the conveyor belt 25B. As a method for adsorbing the medium M to the conveyor belt 25B, a known adsorption method such as an air suction method and an electrostatic adsorption method can be adopted. In this way, the conveyor belt 25B supports the medium M while adsorbing it. The conveying unit 25 and the recording unit 20 are arranged opposite to each other in the B direction.

[0051] The recording unit 20 includes a recording head 20H that ejects ink as an example of liquid. The recording head 20H is disposed opposite to the transport unit 25 in the B direction at the recording position, and information is recorded on the medium M by ejecting ink from the recording head 20H. The recording unit 20 is a line head configured so that the recording head 20H that ejects ink covers the entire area of ​​the medium M in the width direction X.

[0052] In addition, the recording unit 20 can record in a line recording method that records in the entire area in the width direction of the medium M without the medium M moving in the width direction X. However, the recording unit 20 is not limited to this, and may be a serial recording method recording unit that is mounted on a carriage and ejects ink while moving in the width direction X of the medium M. That is, as long as the recording device 10 has the configuration of the first maintenance unit 60, the recording method of the recording unit 20 may be any method.

[0053] The recording device 10 includes a first maintenance unit 60 for maintaining the nozzle surface 20N of the recording unit 20. The first maintenance unit 60 can move to a maintenance position for maintaining the recording head 20H and an escape position PC1 that escapes from the maintenance position to the -A direction. The escape position PC1 is an example of a second escape position. The recording unit 20 can move to a maintenance position that escapes from the recording position PH4 to the escape position PH1 side by a predetermined distance. The first maintenance unit 60 maintains the recording head 20H located at the maintenance position. The first maintenance unit 60 is configured to be able to move between the escape position PC1 and the maintenance position by moving in the A direction. The first maintenance unit 60 moves from the escape position PC1 to the A direction (+A direction) and maintains the recording head 20H at the maintenance position. When the recording device 10 is in a recording operation, the first maintenance unit 60 stands by at the escape position PC1. It should be noted that in this example, the A direction, which is the moving direction of the first maintenance unit 60, is also referred to as the second direction A.

[0054] The recording device 10 is provided with a second sensor SE2 capable of detecting the first maintenance unit 60 located at the avoidance position PC1. The second sensor SE2 is configured to detect the first maintenance unit 60 when located at the avoidance position PC1. The first maintenance unit 60 is detected by the second sensor SE2 by avoiding from the capping position PC2 as the maintenance position in the -A direction. The avoidance position PC1 detected by the second sensor SE2 is also the origin position when measuring the position of the first maintenance unit 60 on the moving path. It should be noted that the details of the maintenance performed by the first maintenance unit 60 will be described later.

[0055] The printing unit 12 includes a control unit 100 for controlling the operation of each unit of the recording device 10, a liquid storage unit 101 for storing liquid such as ink, and a waste liquid storage unit 102 for storing waste liquid such as ink in the device body 11. The recording device 10 also includes a feed motor 103 and a conveying motor 104 (see Fig.18 ) etc. The liquid storage section 101, the waste liquid storage section 102, the feed motor 103 and the transport motor 104 are components of the recording mechanism 12A.

[0056] The liquid container 101 supplies ink to the recording head 20H via a tube (not shown). The recording head 20H ejects liquid such as ink supplied from the liquid container 101. Figure 2 The pickup roller 21 shown is driven by a feed motor 103. In addition, the transport roller pairs 22, 23, 26 and the transport unit 25 are driven by one or more transport motors 104. The control unit 100 is responsible for controlling the recording device 10. The control unit 100 controls the components of the recording mechanism 12A based on detection signals input from various sensors SE1 to SE4, 55, etc. In the case where the recording unit 20 and the first maintenance unit 60 cannot recognize their own positions, the control unit 100 controls the recording unit 20 to evade in a manner away from the first maintenance unit 60 side in the first direction B, and then evacuates the first maintenance unit 60 in the second direction A. The control unit 100 detects that the recording unit 20 and the first maintenance unit 60 are located at their respective evacuation positions PH1 and PC1 based on the detection results of the first sensor SE1 and the second sensor SE2.

[0057] like Figure 2 As shown in FIG. 1 , the discharge unit 19 includes a discharge tray 19A constituting the bottom thereof. The discharge tray 19A is a plate-shaped member having a loading surface 19B for loading the discharged medium M. The discharge tray 19A is disposed in the conveying path T of the medium M at a position downstream of the conveying unit 25 and in the +Z direction relative to the recording unit 20 in the Z direction. Figure 2 In FIG. 1 , each component of the recording device 10 is shown in a simplified manner.

[0058] The control unit 100 performs an initialization operation when the power of the recording device 10 is turned on. In the initialization operation, the recording unit 20, the first maintenance unit 60, and the second maintenance unit 80 (see Figure 4 ) moves on a path passing through the respective origin positions, that is, the avoidance positions PH1, PC1, and PW1, and searches for the avoidance position as the origin position where the sensors SE1, SE2, and SE3 are turned on, thereby performing an origin search operation. At the position of the origin detected by the origin search operation, the counters 111 to 113, etc. (refer to Fig.18) is reset. Then, as the recording unit 20, the first maintenance unit 60, and the second maintenance unit 80 move, each counter 111 to 113 receives the data from the three encoders 91 to 93 (see Fig.18 ), the three encoders 91 to 93 detect the positions of the recording unit 20, the first maintenance unit 60, and the second maintenance unit 80. Thus, each counter 111 to 113 counts the count value indicating the position of the recording unit 20, the first maintenance unit 60, and the second maintenance unit 80.

[0059] Configuration of the motion unit 30

[0060] Next, refer to Figure 3 The configuration of the motion unit 30 will be described.

[0061] like Figure 3 As shown, the recording device 10 includes a main body 11 of the device. Figure 3 The motion unit 30 is a first motion mechanism 31 (see Figure 6 ), the second moving mechanism 70 (refer to Figure 4 , Figure 6 ) and a third moving mechanism 83 (see Fig.11 ) are assembled as one. The first moving mechanism 31 moves the recording unit 20 in a first direction B intersecting the nozzle surface 20N. The nozzle surface 20N is a surface facing the conveying path T in the recording head 20H.

[0062] The second moving mechanism 70 moves the first maintenance unit 60 in the second direction A along the nozzle surface 20N. The control unit 100 controls the actions of the first moving mechanism 31 and the second moving mechanism 70. In the motion unit 30, the recording unit 20 is supported to be movable in the first direction B, the first maintenance unit 60 is supported to be movable in the second direction A, and the second maintenance unit 80 is supported to be movable in the third direction X. The second maintenance unit 80 can move in the third direction X orthogonal to the first direction B and the second direction A to perform maintenance on the recording head 20H of the recording unit 20. In other words, the first maintenance unit 60 can move in the second direction A to perform first maintenance on the recording head 20H. The second maintenance unit 80 can move in the third direction X to perform second maintenance on the recording head 20H that is different from the first maintenance. It should be noted that in this example, the third direction X is the X-axis direction, but as long as the second maintenance can be performed without interfering with the first maintenance unit 60, it can also be a direction other than the X-axis direction.

[0063] The motion unit 30 includes a main body frame 33 constituting a main body portion. The main body frame 33 includes a pair of side frames 34 and 34 facing each other at a predetermined distance in the X-axis direction, and a plurality of lateral frames 35 connecting the pair of side frames 34 and 34 .

[0064] like Figure 3 As shown, a pair of side frames 34, 34 are respectively configured as side plates along the AB plane. One side frame 34 is arranged on the +X direction side, and the other side frame 34 is arranged on the -X direction side. For example, a through hole 34A for the second maintenance unit 80 to move is formed on the other side frame 34.

[0065] A guide member 36 is assembled on each of the two inner surfaces facing each other of the pair of side frames 34, 34, and the guide member 36 guides the recording unit 20 so that the recording unit 20 can move in the first direction B. The two guide members 36 are arranged approximately symmetrically with respect to the center of the main frame 33 in the X direction. Therefore, the guide member 36 on the -X direction side will be described, and the description of the guide member 36 on the +X direction will be omitted.

[0066] like Figure 3 As shown, the guide member 36 includes a guide rail 37 extending in the first direction B and guide rails 38 and 39 branching from the middle of the guide rail 37 and extending in the Z direction. The guide rails 37 to 39 are all groove-shaped rails open in the +X direction. The guide roller 29 of the recording unit 20 (see Figure 6 The guide rail 37 guides the recording unit 20 in the first direction B.

[0067] The recording unit 20 moves to one or more positions away from the conveying unit 25 relative to the recording position under the guidance of the guide rail 37. Specifically, the recording unit 20 can move to a plurality of stop positions such as the recording position PH4, the escape position PH1, the capping position PH3, and the flushing position by moving along the guide rail 37.

[0068] When the recording unit 20 is located at a predetermined position on the guide rail 37, it can be guided to the guide rails 38 and 39 for replacement. In this example, the predetermined position is the avoidance position PH1. In the recording device 10, a user or a service person or other operator can remove the recording unit 20 from the device body 11 for maintenance or replace it with a new recording unit. When the user operates the operation unit 14 (see Figure 1 ) and performs an operation of notifying the recording device 10 to replace the recording unit 20, the control unit 100 moves the recording unit 20 to the escape position PH1 which is also the replacement position. Thus, the operator can replace the recording unit 20 through the insertion port exposed when the discharge tray 19A is removed.

[0069] like Figure 3As shown, the first maintenance unit 60 performs cleaning of the recording head 20H as the first maintenance. The first maintenance unit 60 is a capping unit 62 that cleans the recording head 20H. The capping unit 62 in this example cleans the nozzles N (see FIG. 1 ) of the recording head 20H. Fig.10 ) for cleaning. The cap portion 62 has Figure 3 , Figure 4 The cap 64 shown is an example of an abutment portion. Fig. 9 , Fig.10 As shown, the capping part 62 forcibly discharges waste liquid such as thickened ink or ink containing bubbles in the nozzle N in the capping state in contact with the recording head 20H. Thus, the nozzle N is cleaned by the capping part 62. This cleaning can prevent or eliminate clogging of the nozzle N.

[0070] In addition, if Figure 3 As shown, the second maintenance unit 80 performs maintenance on the recording head 20H. The second maintenance unit 80 wipes the nozzle surface 20N (see Fig.11 ) as the second maintenance wiping portion 82. The second maintenance portion 80 of this example has Figure 4 , Fig.11 The wiping portion 82 of the wiping member 81 is shown. Fig.12 As shown, the wiping section 82 wipes the nozzle surface 20N of the recording head 20H using the wiping member 81 .

[0071] like Figure 3 , Figure 6 As shown, the recording device 10 is provided with replacement rails 38 and 39 as paths for removing the recording unit 20 from the device body 11 and attaching the recording unit 20 to the device body 11. The recording unit 20 is removed via the replacement rails 38 and 39 when located at the escape position PH1.

[0072] The recording unit 20 of this embodiment rises in the -B direction and falls in the +B direction. The B direction is orthogonal to the nozzle surface 20N. That is, the nozzle N (refer to Fig.10 The direction perpendicular to the surface opened by the recording unit 20, that is, the nozzle surface 20N is the lifting direction of the recording head 20H. In this specification, the direction in which the recording unit 20 moves is also referred to as the lifting direction. The lifting direction including the -B direction and the +B direction is also expressed as the lifting direction ±B.

[0073] Configuration of the Recording Unit 20 and the Cap Unit 62

[0074] Next, refer to Figure 4 The configuration and operation of the recording unit 20 and the first maintenance unit 60 will be described. Figure 4 As shown in FIG. 1 , the recording head 20H is configured such that a plurality of unit heads 20U are arranged in the X-axis direction. Figure 4 The cap section 62 shown includes a plurality of caps 64 and a cap holder 66 that holds the plurality of caps 64. The plurality of caps 64 are arranged in the X-axis direction at positions facing the plurality of unit heads 20U. The caps 64 are open on the -B direction side facing the recording head 20H.

[0075] like Figure 4 As shown, the racks 71 of the cap part 62 fixed to the cap holder 66 on both sides of the long side are meshed with the pinion 72. A plurality of guide rollers 74 are installed on both sides of the cap holder 66 in the long side direction. The guide rollers 74 on both sides are engaged with the guide rails 73 on both sides. The cap part 62 can move in the second direction A by the guide rollers 74 rotating and being guided by the guide rails 73. Figure 4 The cap portion 62 in the illustrated avoidance position PC1 is detected by the second sensor SE2.

[0076] like Figure 4 As shown, on the cap holder 66 of the cap portion 62, a pair of engaged portions 69 for positioning protrude at positions on both sides of the plurality of caps 64 sandwiched in the width direction X. The pair of engaged portions 69 protrude to a position higher than the upper surface of the cap 64 in the -B direction. Figure 4 The avoidance position PC1 shown is toward the Figure 4 During the movement toward the capping position PC2 in the +A direction indicated by the middle arrow, the pair of engaged portions 69 engage with the pair of pin portions 20G on the recording portion 20 side. As a result, the cap portion 62 is positioned at the capping position PC2 in the second direction A (see Fig. 9 ).

[0077] like Figure 4 As shown, the second maintenance unit 80 is a wiping unit 82 having a wiping member 81. The wiping unit 82 has the wiping member 81 and a slider 82A that holds the wiping member 81. The wiping unit 82 is configured to be movable along the third direction X. The wiping unit 82 wipes each nozzle surface 20N of the plurality of unit heads 20U with the wiping member 81 during the reciprocating movement along the third direction X.

[0078] Detailed Configuration of the Recording Unit 20

[0079] Next, refer to Figure 5 The structure of the recording unit 20 is described. Figure 5 As shown in FIG. 1 , an adjustment unit 46 is provided on the main frame 33. The adjustment unit 46 includes a cam shaft 47, two eccentric cams 48, a gap adjustment motor 49, a retainer 51, a bracket 52, an adjustment screw 53, a detected member 54, and a position sensor 55. Thus, the adjustment unit 46 includes the eccentric cam 48 and the cam shaft 47 as an example of a shaft for rotating the eccentric cam 48.

[0080] like Figure 5 As shown, the cam shaft 47 extends between a pair of side frames 34 and is rotatably supported by the pair of side frames 34 via bearings not shown. Two eccentric cams 48 are mounted on the cam shaft 47 at two predetermined locations. In addition, the outer peripheral surface of each of the two eccentric cams 48 serves as a cam surface. The outer peripheral surface of the eccentric cam 48 contacts the portion of the plate portion 20A of the recording unit 20 in the +B direction, thereby defining the recording position PH4 of the recording unit 20. Thus, the two eccentric cams 48 rotate as the cam shaft 47 rotates, thereby adjusting the recording position PH4 of the recording head 20H in the B direction. In addition, the gap adjustment motor 49 is controlled by the control unit 100 (refer to Figure 2 ) controls the drive to make the camshaft 47 rotate forward or reverse.

[0081] like Figure 5 As shown in the figure, at the end of the +X direction side of the adjustment unit 46, the shaft end of the adjustment screw 53 supported by the bracket 52 is engaged with the threaded hole of the holder 51. By rotating the adjustment screw 53, the holder 51 is moved up and down, so that the position of the cam shaft 47 in the B direction and the position of the recording unit 20 in the B direction can be adjusted. In this example, the position of the eccentric cam 48 in the B direction can be adjusted by the operator manually operating the adjustment screw 53.

[0082] The detected component 54 mounted on the end of the camshaft 47 has a fan-shaped portion extending radially from the camshaft 47. As an example, the position sensor 55 mounted on the retaining frame 51 is an optical sensor having a light-emitting portion and a light-receiving portion not shown. The position sensor 55 detects the rotation angle of the camshaft 47 based on whether the fan-shaped portion of the detected component 54 blocks light. The control unit 100 drives the gap adjustment motor 49 based on the rotation angle of the camshaft 47 detected by the position sensor 55, thereby adjusting the rotation angle of the eccentric cam 48. In the present embodiment, the recording unit 20 stops descending in a state where the plate portion 20A of the recording head 20H is in contact with the cam surface of the eccentric cam 48. Thus, the recording head 20H is configured at the recording position PH4.

[0083] Figure 5 The recording position PH4 of the recording unit 20 shown in FIG. Figure 1) in the B direction, that is, the necessary gap. The recording position PH4 is determined by the type of medium M, that is, the type of medium. After the eccentric cam 48 rotates, the gap adjustment motor 49 is driven to rotate forward, so that the recording unit 20 moves in the B direction, so that the plate portion 20A contacts the eccentric cam 48 and stops at the recording position PH4. At this time, the error of the stop position of the rack 28 is absorbed by the compression deformation of the spring not shown. The recording unit 20 is positioned at the recording position PH4 that ensures a gap predetermined according to the type of medium such as plain paper, photo paper, etc.

[0084] In this way, the recording position PH4 in the lifting direction ±B of the recording head 20H is switched in multiple stages according to the rotation angle of the eccentric cam 48. In the present embodiment, the recording position PH4 of the recording head 20H can be switched in multiple stages within a range of, for example, 3 to 6 stages. The recording head 20H adjusts the interval, i.e., the gap, in the direction in which the nozzle surface 20N and the conveying unit 25 are opposed to each other in accordance with the recording position PH4 at this time. The recording head 20H ejects liquid toward the medium M conveyed by the conveying unit 25 while ensuring an appropriate gap.

[0085] Next, refer to Figures 6 to 9 , Fig.13 , Fig.16 The moving paths and moving actions of the recording unit 20 and the first maintenance unit 60 are described below. Figures 6 to 9 etc., the second maintenance unit 80 is omitted.

[0086] The recording unit 20 is moved in the vertical direction ±B along the first direction B and is disposed at the recording position PH4 ( Figure 6 ), standby position PH2( Figure 8 ), Block position PH3( Fig. 9 ) and avoidance position PH1( Figure 2 , Fig.13 , Fig.16 ).

[0087] Figure 6 The recording position PH4 shown is the position of the recording unit 20 when recording is performed on the medium M. The cap position PH3 is the position of the recording unit 20 when the nozzle surface 20N is covered by the cap 64. In other words, it is the position of the recording unit 20 when capped with the cap 64. When not recording, the recording unit 20 stands by in a state of being capped by the cap 64. The standby position PH2 is located closer to the -B direction than the cap position PH3, and the standby position PH2 is a position that is avoided from the moving path of the cap unit 62.

[0088] The escape position PH1 is the position when the recording unit 20 performs an origin search to detect the origin position on the moving path. The escape position PH1 is located closer to the rising side (-B direction side) of the recording unit 20 than the standby position PH2. In this example, the escape position PH1 is also a replacement position when the recording unit 20 is replaced.

[0089] like Figure 6 As shown, the recording device 10 includes a first moving mechanism 31 that moves the recording unit 20 in a first direction B that intersects the nozzle surface 20N. The first moving mechanism 31 is, for example, a rack and pinion mechanism. In this example, the first moving mechanism 31 includes, for example, a pinion 43 (driving gear), a rack 28, and a lifting motor 41 that serves as a driving source for rotating the pinion 43. The length of the rack 28 is longer than the length of one circumference of the pinion 43. By driving the lifting motor 41, the recording unit 20 moves in the B direction via the first moving mechanism 31. The recording unit 20 is guided by a guide rail 37 extending in the B direction and moves in the B direction. The first moving mechanism 31 lifts and lowers the recording unit 20 in the lifting directions ±B.

[0090] like Figure 6 As shown, a plurality of guide rollers 29 composed of rollers are rotatably provided on the side of the recording unit 20. The recording unit 20 moves in the first direction B along the guide rail 37 by guiding the plurality of guide rollers 29.

[0091] Figure 6 The first maintenance unit 60 shown in the figure stores the recording head 20H and performs maintenance on the recording head 20H. The first maintenance unit 60 is a cap unit 62 having a cap 64 for covering the recording head 20H. The cap 64 as the first maintenance unit 60 performs capping as maintenance.

[0092] The first maintenance unit 60 is provided to be movable in a second direction A intersecting (e.g., orthogonal to) the moving direction B of the recording unit 20. The first maintenance unit 60 is guided by a guide rail 73 extending in the second direction A and reciprocates in the second direction A. The first maintenance unit 60 is a capping unit 62 having a cap 64 for performing maintenance on the recording head 20H.

[0093] like Figure 6As shown, the recording device 10 includes a second moving mechanism 70 that moves the first maintenance unit 60 in the second direction A along the nozzle surface 20N. The second direction A is a direction that intersects (for example, is orthogonal to) the moving direction of the recording unit 20, that is, the first direction B. The second moving mechanism 70 is, for example, a rack and pinion mechanism 70A. The rack and pinion mechanism 70A includes a rack 71 and a pinion 72 (driving gear) and a first sliding motor 75 that is a driving source for the pinion 72. The second moving mechanism 70 moves the first maintenance unit 60 in the second direction A that the rack 71 extends. The length of the rack 71 is longer than the length of one circumference of the pinion 72.

[0094] The cap portion 62 can reciprocate in the second direction A by the second moving mechanism 70. The cap portion 62 moves to Figure 6 The escape position PC1 shown in the figure and the cap portion 62 are opposite to the recording head 20H. Figure 8 , Fig. 9 The capping position PC2 is shown. The escape position PC1 is a position where the capping unit 62 stands by when the recording unit 20 is recording. The capping position PC2 is a position of the capping unit 62 when capping is performed to cover the nozzle surface 20N of the recording head 20H.

[0095] When capping, Figure 7 As shown, the recording unit 20 moves to the standby position PH2 which is away from the recording position PH4 by a predetermined distance in the −B direction to ensure a moving path of the cap unit 62 when the cap unit 62 moves from the away position PC1 to the capping position PC2 .

[0096] like Figure 8 As shown, when the recording unit 20 is located at the standby position PH2, the cap portion 62 is moved from Figure 7 The avoidance position PC1 shown moves in the +A direction to Figure 8 The capping position PC2 shown in the figure. The cap 64 at the capping position PC2 faces the recording head 20H at the standby position PH2 in the +B direction. As the recording unit 20 moves from the standby position PH2 to the +B direction, the recording head 20H contacts the cap 64 at the capping position PC2 with a predetermined pressure. The position where the recording head 20H contacts the cap 64 is Fig. 9 The capping position PH3 shown in FIG. 6 is located at the capping position PC2. The nozzle N (refer to FIG. 6A ) of the recording head 20H is moved to the capping position PH3. Fig.10 )cover.

[0097] like Figure 8 , Fig. 9 As shown, when the cap portion 62 is located at the capping position PC2 , the cap portion 62 is separated from the conveying path T for conveying the medium M to be recorded by the recording unit 20 .

[0098] The recording head 20H is maintained while the cap 64 covers the nozzles N of the recording head 20H. The recording head 20H forcibly discharges liquid such as ink from the nozzles N into the cap 64. The recording device 10 stores the liquid forcibly discharged from the recording head 20H by the cap 64 as waste liquid. Figure 1 For maintenance, the waste liquid storage section 102 is shown. Figure 8 ) The ink or other liquid ejected idly and the ink or other liquid forcibly discharged from the nozzles N of the recording head 20H to the cap 64 by cleaning are stored in the waste liquid storage portion 102 from the cap 64 as waste liquid.

[0099] The recording unit 20 is arranged at Fig.16 , Fig.17 The avoidance position PH1 shown. The avoidance position PH1 is also the origin position of the recording unit 20. The recording unit 20 moves to the avoidance position PH1 in the initial action and detects the origin position. The detected avoidance position PH1 is used as the origin on the moving path of the recording unit 20. The control unit 100 grasps the position of the recording unit 20 with the avoidance position PH1 of the recording unit 20 as the origin. For example, when an error such as a jam error occurs, the control unit 100 forcibly stops the recording device 10 in an emergency. When recovering from the error, the position of the recording unit 20 sometimes becomes uncertain due to the reset processing performed by the control unit 100. When the position of the recording unit 20 becomes uncertain, the control unit 100 moves the recording unit 20 to the avoidance position PH1 as its origin position to perform an origin search action to find the origin. That is, the control unit 100 drives the lifting motor 41 to reverse and moves the recording unit 20 to the avoidance position PH1 as the origin of its position. As Fig.16 As shown in FIG. 1 , the recording unit 20 is separated from the first maintenance unit 60 when it is located at the capping position PC2 as the maintenance position in a state detected by the first sensor SE1. Fig.16 In the example shown, the recording unit 20 is separated from the first maintenance unit 60 at the error position PC3 slightly deviated from the capping position PC2 while being detected by the first sensor SE1. Fig.17 As shown, the first maintenance portion 60 is avoided.

[0100] like Figure 6 , Fig.16As shown in the figures, guide rails 38, 39 and guide rail 37 are provided. The guide rails 38, 39 extend from the escape position PH1 of the recording unit 20 to a direction including a component of a second direction (direction A) intersecting with the first direction (direction B) extending from the rack 28. The escape position PH1 is also a replacement position of the recording unit 20. When the recording unit 20 is located at the escape position PH1, the plurality of guide rollers 29 can move in the vertical direction Z along the two guide rails 38, 39, so that the recording unit 20 can be removed from the device body 11 and installed on the device body 11. It should be noted that when performing this replacement operation, the discharge tray 19A is removed in order to open the input port (not shown) for replacement.

[0101] The recording unit 20 can be removed and attached by moving the recording unit 20 from the apparatus body 11 along the guide rails 38 and 39 in the vertical direction Z through an insertion port (not shown) opened by removing the discharge tray 19A.

[0102] When the lifting motor 41 is driven to rotate forward, the recording unit 20 descends in the +B direction. On the other hand, when the lifting motor 41 is driven to rotate reversely, the recording unit 20 ascends in the -B direction.

[0103] In addition, if Figure 4 As shown, a plurality of guide rollers 74 composed of rollers are rotatably provided on the side of the cap part 62. The plurality of guide rollers 74 are guided by the guide rail 73, so that the cap part 62 moves along the guide rail 73. When the first slide motor 75 is driven to rotate forward, the cap part 62 rises in the +A direction. On the other hand, when the first slide motor 75 is driven to rotate reversely, the cap part 62 falls in the -A direction.

[0104] like Figure 6 As shown, the first moving mechanism 31 is a rack and pinion mechanism. The first moving mechanism 31 has a lifting motor 41 that drives the recording unit 20 in the lifting direction ±B. Thus, the first moving mechanism 31 moves the recording unit 20 to one or more positions away from the conveying unit 25 relative to the recording position PH4. Specifically, the first moving mechanism 31 is configured to enable the recording unit 20 to move to the avoidance position PH1, the standby position PH2, the capping position PH3, and the recording position PH4.

[0105] Configuration of the cap portion 62

[0106] Next, refer to Fig.10 The detailed structure of the cap portion 62 will be described. Fig.10 The recording portion and the cap portion 62 are shown in a capped state.

[0107] like Fig.10As shown, the cap portion 62 includes: a cap 64 that can abut against the nozzle surface 20N, a cap holder 66 for holding the cap 64, and a spring 65 as an example of a biasing portion provided between the cap 64 and the cap holder 66. The spring 65 biases the cap 64 toward the nozzle surface 20N. The spring 65 biases the cap 64 in the -B direction. The cap 64 is supported by the spring 65.

[0108] In this embodiment, the recording head 20H is configured so that Fig.10 The plurality of unit heads 20U shown are arranged along the X-axis direction. Fig.10 The cap portion 62 shown has a plurality of caps 64, and the plurality of caps 64 are arranged in the X-axis direction, which is the width direction of the medium M, at a position opposite to the plurality of unit heads 20U. The cap 64 has an opening on the -B direction side opposite to the recording head 20H, and has a sealing portion (not shown) made of a material having rubber elasticity around the opening. When the cap 64 is pressed against the nozzle surface 20N of the unit head 20U by the force of the spring 65, at least a part of the sealing portion is elastically compressed. The cap 64 is pressed against the nozzle surface 20N with a predetermined cap pressure by the force of the spring 65 in the -B direction (upward direction) and the restoring force of the elastically compressed sealing portion.

[0109] like Fig.10 As shown, the cap 64 is formed in a shape and size that can cover all the nozzles N in the nozzle surface 20N of the unit head 20U. In addition, when the cap portion 62 is located at the capping position PC2, the cap 64 is arranged at a position opposite to the nozzle surface 20N of each unit head 20U in the first direction B. The cap 64 contacts the nozzle surface 20N of the recording head 20H with a specified capping pressure, thereby covering the multiple nozzles N opened on the nozzle surface 20N. By covering the nozzle surface 20N with the cap 64, the increase in viscosity caused by the drying of liquid such as ink in the nozzle N of the recording head 20H is suppressed. It should be noted that by moving the recording portion 20 from the avoidance position PH1 (refer to Figure 2 , Fig.13 ) moves to a predetermined capping position PH3 in the first direction B as the descending direction, so that the recording head 20H abuts against the cap 64 at a predetermined pressure to form a capping state.

[0110] The cap 64 is mounted relative to the cap holder 66 in a state where it can move relative to the lifting direction ±B via the sliding portion 67. The cap 64 is urged toward the lifting direction, i.e., the −B direction, relative to the cap holder 66 by the elastic force of the spring 65 between the bottom surface of the cap 64 and the upper surface of the cap holder 66. It should be noted that the spring 65 may be an elastic member such as a tension spring or a torsion coil spring as long as it can urge the cap 64 toward the −B direction.

[0111] The second moving mechanism 70 includes a pair of rack and pinion mechanisms 70A and 70B. A pair of racks 71 constituting the rack and pinion mechanisms 70A and 70B are fixed to the side surfaces on both sides of the cap holder 66 in the third direction X. Below and opposite to the toothed portion 71A of the pair of racks 71, a pair of pinion gears 72 (driving gears) constituting the rack and pinion mechanisms 70A and 70B are arranged in a rotatable state. The toothed portion 71A of the rack 71 meshes with the toothed portion 72A of the pinion gear 72. The pair of pinion gears 72 are mounted on both ends of the rotating shaft 76. In addition, guide rollers 74 consisting of a plurality of rollers that can rotate axially with the width direction X as the axial direction are provided on the side walls on both sides of the width direction X of the cap portion 62. The guide rollers 74 are arranged along a guide rail 73 (also refer to the C-shaped cross-section) Figure 6 ) is guided.

[0112] When the first slide motor 75 (see Figure 7 , Figure 8 When the rotation shaft 76 is rotated by the power of the first slide motor 75, the pair of pinions 72 rotate. When the first slide motor 75 is driven to rotate forward, the cap part 62 moves in the +A direction through the meshing of the pinion 72 and the rack 71. On the other hand, when the first slide motor 75 is driven to rotate reversely, the cap part 62 moves in the -A direction through the meshing of the pinion 72 and the rack 71.

[0113] Configuration of the Second Maintenance Unit 80

[0114] Next, refer to Fig.11 The configuration of the second maintenance unit will be described.

[0115] like Fig.11 As shown, the second maintenance unit 80 can move in the third direction X orthogonal to the first direction B and the second direction A to perform maintenance on the recording head 20H of the recording unit 20. The second maintenance unit 80 is a wiping unit 82 having a wiping member 81. The wiping unit 82 includes the wiping member 81 and a slider 82A supporting the wiping member 81.

[0116] The recording device 10 includes a third moving mechanism 83 that reciprocates the wiping member 82 in the third direction X. The third moving mechanism 83 includes a guide rail 84 that guides the slider 82A, an endless belt 86 that is wound around a pair of pulleys 85, 85, and a second slide motor 87 that is a driving source that rotates one of the pulleys 85. The guide rail 84 guides the slider 82A so that the slider 82A can move in the X-axis direction. The pair of pulleys 85 are arranged at positions separated by a predetermined distance in the X-axis direction. The belt 86 is wound around the pair of pulleys 85 and arranged in a range larger than the moving area of ​​the wiping member 81 in a state parallel to the nozzle surface 20N. The control unit 100 can also control the third moving mechanism 83. In detail, the control unit 100 drives the second slide motor 87 forward and reversely to reciprocate the wiping member 81 in the path from the avoidance position PW1 to the wiping start position.

[0117] The slider 82A is fixed to a portion of the belt 86 . Fig.11 The position of the wiping section 82 shown by the solid line is the avoidance position which is also the origin position. When wiping the nozzle surface 20N, the recording head 20H is arranged at the standby position PH2. The standby position PH2 is a position separated from the moving path of the wiping member 81, and is a position where the wiping section 82 and the nozzle surface 20N cannot contact each other. When the second slide motor 87 is driven to rotate forward with the wiping section 82 at the avoidance position, the wiping section 82 moves from the avoidance position to the +X direction (advances) and reaches the +X position. Fig.11 The wiping start position is shown by the double-dotted line.

[0118] After the wiping section 82 reaches the wiping start position, the recording section 20 moves down a predetermined amount in the +B direction and is disposed at the wiping position PH5. The wiping position PH5 is located closer to the escape position PH1 than the recording position PH4 and the capping position PH3.

[0119] Located in Fig.12 The wiping portion 82 at the wiping start position at the left end is driven to move in the -X direction (return movement) by the second slide motor 87 in reverse rotation. During the movement in the -X direction, the wiping member 81 wipes the nozzle surface 20N. It should be noted that the wiping portion 82 can be at the wiping position PW2, and wipes the nozzle surface 20N at the wiping position PW2.

[0120] Liquid such as ink attached to the nozzle surface 20N causes the flight direction of liquid such as ink ejected from the nozzle N to be distorted. In addition, although a meniscus of liquid such as ink is formed in the nozzle N, if the shape of the meniscus is unstable, it causes a deviation in the amount of liquid droplets ejected from the nozzle N. The second maintenance unit 80 wipes the nozzle surface 20N with the wiping member 81 to remove the liquid attached to the nozzle surface 20N or to shape the shape of the meniscus formed by the liquid in the nozzle N. The wiping unit 82 wipes the nozzle surface 20N with the wiping member 81, thereby suppressing the deviation of the flight direction of liquid droplets ejected from the nozzle N and the deviation of the ejection amount.

[0121] About Interference Area IA

[0122] Next, refer to Fig.13 The positional relationship between the recording unit 20 and the first maintenance unit 60 will be described. Fig.13 As shown, the area where the recording unit 20 can move is set as the first moving area MA1, and the area where the first maintenance unit 60 can move is set as the second moving area MA2. When the area where the first moving area MA1 and the second moving area MA2 overlap is set as the interference area IA ( Fig.13 ), the first sensor SE1 and the second sensor SE2 detect the recording unit 20 and the first maintenance unit 60 outside the interference area IA. That is, the first sensor SE1 detects the recording unit 20 when the recording unit 20 is located outside the interference area IA, and the second sensor SE2 detects the first maintenance unit 60 when the first maintenance unit 60 is located outside the interference area IA.

[0123] The first maintenance unit 60 is a capping unit 62 that contacts and caps the nozzle surface 20N. The first maintenance unit 60 contacts and caps the nozzle surface 20N approaching from outside the interference area IA in the interference area IA. Figure 8 When the recording unit 20 is in the standby position PH2 shown in FIG. Fig.13 The recording unit 20 is on standby outside the interference area IA. By moving from the standby position PH2 to the capping position PH3, the nozzle surface 20N approaches from outside the interference area IA and contacts the cap 64 located at the capping position PC2. Fig. 9 As shown, the recording head 20H is capped. Fig. 9 In the capping state shown, the nozzle face 20N and part or all of the cap 64 are in Fig.13 Within the interference area IA shown.

[0124] In addition, if Fig.13As shown, when the recording unit 20 is detected by the first sensor SE1 and the first maintenance unit 60 is detected by the second sensor SE2, the entire recording unit 20 is located outside the interference area IA, and the entire first maintenance unit 60 is located outside the interference area IA. Fig.13 The state shown in the figure shows the state where the recording unit 20 and the first maintenance unit 60 are evacuated to their respective evacuation positions PH1 and PC1. When the recording device 10 is emergency stopped due to an error such as a jam error, the control unit 100 causes the recording unit 20, the first maintenance unit 60, and the second maintenance unit 80 (see Fig.14 ) avoid to their respective avoidance positions PH1, PC1, PW1.

[0125] like Fig.13 As shown in FIG. 1 , when the positions of the recording unit 20 and the first maintenance unit 60 are detected by the first sensor SE1 and the second sensor SE2, the control unit 100 uses the cap unit 62 to cover the recording unit 20. Fig.13 As shown, in the recovery process, the recording unit 20 and the first maintenance unit 60 are respectively arranged at the avoidance positions PH1 and PC1. When the respective positions are detected, the control unit 100 moves the capping unit 62 to the capping position PC2, and then moves the recording unit 20 to the capping position PH3. Thus, after the control unit 100 performs the origin search of the recording unit 20, the first maintenance unit 60, and the second maintenance unit 80 in the recovery process, as shown in FIG. Fig. 9 , Fig.10 The recording head 20H is shown in a capped state with the cap 64 .

[0126] like Fig.13 As shown, when the first sensor SE1 and the second sensor SE2 detect their own positions, even when the jam detector 115 determines that a jam has occurred, the nozzle surface 20N of the recording unit 20 is capped by the capping unit 62 .

[0127] About Overlap Area OA

[0128] Next, refer to Fig.14 The positional relationship between the first maintenance unit 60 and the second maintenance unit 80 will be described. Fig.14 As shown, the area where the first maintenance unit 60 can move is set as the second moving area MA2, and the area where the second maintenance unit 80 can move is set as the third moving area MA3. The area where the second moving area MA2 and the third moving area MA3 overlap is as shown in FIG. Fig.14 The area indicated by hatching in the middle is defined as an overlapping area OA.

[0129] At this time, when one of the first maintenance unit 60 and the second maintenance unit 80 performs maintenance in the overlapping area OA, the other avoids the overlapping area OA. That is, the first maintenance unit 60 enters the overlapping area OA when the second maintenance unit 80 is located outside the overlapping area OA. In addition, the second maintenance unit 80 enters the overlapping area OA when the first maintenance unit 60 is located outside the overlapping area OA. For this reason, even a control such that a part of each of the first maintenance unit 60 and the second maintenance unit 80 exists in the overlapping area OA together is not performed.

[0130] When an error such as a jam error occurs in the control unit 100, the first maintenance unit 60 and the second maintenance unit 80 may sometimes fail to recognize their own positions. When the first maintenance unit 60 and the second maintenance unit 80 fail to recognize their own positions, the control unit 100 causes the second maintenance unit 80 to evade at the same time as the evasion of the first maintenance unit 60. That is, when the first maintenance unit 60 and the second maintenance unit 80 fail to recognize their own positions when an error occurs, the control unit 100 causes each to move to the evasion position PC1 and PW1 in order to perform respective origin searches. At this time, the control unit 100 causes the second maintenance unit 80 to evade at the same time as the evasion of the first maintenance unit 60.

[0131] Restoration Operation of the Recording Unit 20 and the First Maintenance Unit 60

[0132] Next, refer to Figures 15 to 17 Describes the recovery action when an error such as a jam error occurs. Fig.15 As shown, when an error such as a jam error occurs, the recording device 10 stops urgently, so the recording head 20H may contact the cap 64 in an abnormal state other than the capping state. Fig.15 This is an example of an abnormal state other than the capping state. This state does not necessarily occur, and other abnormal states may also occur. However, when an error such as a jam error occurs, the control unit 100 is reset, so the count value and position data PD of each counter 111 to 114 are also reset. For this reason, the recording unit 20, the first maintenance unit 60, and the second maintenance unit 80 become an uncertain state in which they cannot identify their own positions. In the uncertain state, it is impossible to determine where the recording unit 20, the first maintenance unit 60, and the second maintenance unit 80 are located, or even if they can be determined, the reliability of the determined position is low. For this reason, Fig.15 As shown, there is a possibility that the recording head 20H is in an abnormal state in which the cap 64 is in contact with each other, or the recording head 20H is in an abnormal state in which the wiping member 81 is in contact with each other.

[0133] like Fig.16 As shown, when an uncertain state occurs, the control unit 100 first causes the recording unit 20 to Fig.15 The position shown when the error occurred is avoided to Fig.16Then, the control unit 100 causes the first maintenance unit 60 to move from the Fig.16 The position shown when the error occurred is avoided to Fig.17 As described above, the control unit 100 causes the second maintenance unit 80 to be retracted to the retracted position PW1 simultaneously with the retraction of the first maintenance unit 60 .

[0134] Electrical Configuration of Recording Device 10

[0135] Next, refer to Fig.18 The electrical structure of the recording device 10 is described. The recording device 10 receives recording data from, for example, a host device (not shown). The recording data includes recording condition information and image data of, for example, a CMYK color system that specifies the recording content. The recording condition information includes information such as the medium size, the medium type, whether double-sided recording is performed, the recording color, and the recording quality. The control unit 100 is electrically connected to the components that constitute the image reading unit 13 and the recording mechanism 12A. As the electrical components that constitute the recording mechanism 12A, there are a recording head 20H, a lifting motor 41, a capping unit 62, a first sliding motor 75, a wiping unit 82, a second sliding motor 87, a gap adjustment motor 49, a pump motor 79, a feed motor 103, and a conveying motor 104. The control unit 100 controls these electrical components to cause the recording mechanism 12A to perform a recording operation.

[0136] The control unit 100 controls the recording head 20H to eject liquid such as ink from the nozzles N of the recording head 20H. The control unit 100 controls the lifting motor 41 to move the recording unit 20 in the first direction B via the first moving mechanism 31. The control unit 100 controls the first slide motor 75 to move the capping unit 62 in the second direction A via the second moving mechanism 70. The control unit 100 controls the second slide motor 87 to move the wiping unit 82 in the third direction X via the third moving mechanism 83.

[0137] Furthermore, the control unit 100 controls the gap adjustment motor 49 as a driving source for rotating the eccentric cam 48, thereby adjusting the recording position PH4 at which the recording head 20H performs recording. By adjusting the recording position PH4 of the recording head 20H, the gap between the medium M and the nozzle surface 20N is adjusted according to the thickness of the medium M and other types. In addition, the control unit 100 controls the pump 78 (see FIG. 1 ) as a pump connected to the cap 64 via the pipe 77. Fig.10 ) is driven by the pump motor 79, thereby Fig. 9In the capping state shown, the control unit 100 controls the cleaning performed by making the inside of the cap 64 negative pressure. It should be noted that the cleaning is not limited to the decompression cleaning in which the inside of the cap 64 is negative pressure to force the ink or other liquid to be discharged from the nozzle N, and the pressurized cleaning may also be performed. In the configuration for performing the pressurized cleaning, the control unit 100 controls the pump motor 79 to pressurize the liquid storage unit 101, thereby forcibly causing the ink or other liquid to be discharged from the nozzle N into the cap 64.

[0138] The control unit 100 controls the feed motor 103 to move the pickup roller 21 (see Figure 2 ) rotates, thereby feeding the medium M stored in the cassette 15 one by one. In addition, the control unit 100 drives the conveying roller pair 22, 23, 26 and the conveying unit 25 (see Figure 2 ), thereby performing conveyance control to convey the medium M fed from the box 15 along the conveyance path T.

[0139] In addition, if Fig.18 As shown, the first sensor SE1, the second sensor SE2, the third sensor SE3, the position sensor 55, the door sensor 90 and the medium width sensor SE4 are electrically connected to the control unit 100. In addition, the first encoder 91, the second encoder 92, the third encoder 93 and the fourth encoder 94 are electrically connected to the control unit 100.

[0140] Furthermore, the control unit 100 includes a computer 110 . The computer 110 includes a first counter 111 , a second counter 112 , a third counter 113 , a fourth counter 114 , a jam detector 115 , and a memory 116 .

[0141] The computer 110 of the control unit 100 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and a storage device (not shown). The control unit 100 controls the conveyance of the medium M in the recording device 10 and the recording operation of the recording unit 20 recording information on the medium M. In detail, the control unit 100 is not limited to performing software processing for all the processes executed by itself. For example, the control unit 100 may also have a dedicated hardware circuit (such as an application-specific integrated circuit: ASIC) that performs hardware processing for at least a part of the processes executed by itself. That is, the control unit 100 may be configured to include one or more processors that act according to a computer program (software), one or more dedicated hardware circuits that perform at least a part of various processes, or a circuit (circuitry) of a combination thereof. The processor includes a CPU and a memory 116 such as a RAM and a ROM, and the memory 116 stores program codes or instructions configured to cause the CPU to execute processes. Memory 116 , or computer-readable media, includes all available media that can be accessed by general or special purpose computer 110 .

[0142] The first counter 111 counts a value indicating the position of the recording unit 20 with the escape position PH1 of the recording unit 20 as the origin. The first counter 111 is reset when the first sensor SE1 detects the recording unit 20 reaching the escape position PH1 during the origin search operation of the recording unit 20. The first counter 111 counts the count value corresponding to the position of the recording unit 20 on the moving path along the first direction B with the escape position PH1 as the origin by counting the number of pulse edges of the detection signal input from the first encoder 91.

[0143] The second counter 112 counts a value indicating the position of the first maintenance unit 60 with the avoidance position PC1 of the first maintenance unit 60 as the origin. The second counter 112 is reset when the second sensor SE2 detects the first maintenance unit 60 reaching the avoidance position PC1 during the origin search operation of the first maintenance unit 60. The second counter 112 counts the count value corresponding to the position of the first maintenance unit 60 on the moving path along the second direction A with the avoidance position PC1 as the origin by counting the number of pulse edges of the detection signal input from the second encoder 92.

[0144] The third counter 113 counts a value indicating the position of the second maintenance unit 80 with the avoidance position PW1 of the second maintenance unit 80 as the origin. The third counter 113 is reset when the third sensor SE3 detects the second maintenance unit 80 reaching the avoidance position PW1 during the origin search operation of the second maintenance unit 80. The third counter 113 counts the count value corresponding to the position of the second maintenance unit 80 on the moving path along the third direction X with the avoidance position PW1 as the origin by counting the number of pulse edges of the detection signal input from the third encoder 93.

[0145] The fourth counter 114 counts the value indicating the rotation position of the eccentric cam 48 with the predetermined rotation position as the origin. The fourth counter 114 is reset when the position sensor 55 detects the eccentric cam 48 reaching the origin angle in the origin search operation of the eccentric cam 48 for adjusting the recording position PH4. The fourth counter 114 counts the count value corresponding to the rotation position (rotation angle) of the eccentric cam 48 with the origin angle as the origin by counting the number of pulse edges of the detection signal input from the fourth encoder 94.

[0146] The jam detection unit 115 detects whether the medium M is jammed on the conveying path T. The jam detection unit 115 monitors the load of the feed motor 103 and the conveying motor 104 during conveying, and detects a jam of the medium M when the load of either the motor 103 or 104 exceeds a predetermined threshold. When the jam detection unit 115 detects a jam, the control unit 100 performs error processing that considers it a jam error and causes the recording device 10 to stop urgently. It should be noted that the control unit 100 also detects various errors other than the jam error, and performs error processing corresponding to the detected error. For example, when a major error such as the power plug being unplugged is detected, the recording device 10 is also stopped urgently.

[0147] The program PR and the position data PD are stored in the memory 116. The program PR includes Fig.19 The control unit 100 performs a recovery process routine as shown in the flowchart of FIG. When the control unit 100 causes the recording device 10 to stop urgently upon detecting an error such as a jam error, the recovery process routine is executed to perform recovery processing in order to recover from the error. In addition, the control unit 100 stores various position data PD corresponding to the count values ​​of each counter 111 to 114 in a non-volatile predetermined storage area in the memory 116. For this reason, even if the power plug of the recording device 10 is unplugged, the position data PD immediately before the power is cut off is stored in the predetermined recording area.

[0148] The role of implementation

[0149] Next, the operation of the recording device 10 as an example of the liquid ejecting device will be described.

[0150] The user specifies the image to be recorded, etc., and inputs and sets the recording condition information by operating a pointing device such as a keyboard or a mouse (not shown) of the host device (not shown). The recording condition information includes the medium size, medium type, recording color, number of sheets, etc. The host device sends a recording task including the recording condition information and the image data to the recording device 10.

[0151] The recording device 10 receives a recording job from a host device. The control unit 100 drives the pickup roller 21, the roller pair 22, 23, 26, and the conveying unit 25 based on the recording condition information included in the recording task. As a result, the recording device 10 feeds the medium M of the specified medium type and medium size from the box 15. The fed medium M is conveyed to the conveyor belt 25B through the conveying path T. In addition, the control unit 100 controls the recording head 20H based on the image data included in the recording task. The recording head 20H ejects liquid such as ink toward the medium M conveyed on the conveyor belt 25B. The recorded medium M is discharged to the discharge tray 19A.

[0152] The control unit 100 moves the recording unit 20 from the capping position PH3 to the escape position PH1. Then, the capping unit 62 moves from the capping position PC2 to the escape position PC1. Before starting recording, the control unit 100 adjusts the gap between the recording head 20H and the conveyor belt 25B based on the information of the medium type. The control unit 100 drives the gap adjustment motor 49 to rotate the eccentric cam 48 to a rotation angle corresponding to the gap determined according to the medium type.

[0153] like Figure 6 As shown in FIG. 1 , during recording, the recording unit 20 is lowered from the avoidance position, and its plate portion 20A abuts against the eccentric cam 48, so that the recording head 20H is positioned at the recording position PH4. The control unit 100 drives the lifting motor 41 to rotate forward, so that the recording unit 20 is lowered from the avoidance position PH1 to the recording position PH4. Figure 5 The plate portion 20A shown here abuts against the cam surface of the eccentric cam 48 .

[0154] like Figure 5 As shown, the recording unit 20 is positioned at the recording position PH4 where the plate portion 20A contacts the eccentric cam 48. At the recording position PH4, the recording head 20H ejects liquid from the nozzle N toward the medium M conveyed on the conveyor belt 25B. At this time, since the gap between the recording head 20H and the conveyor belt 25B has been adjusted to an appropriate value, recording is performed on the medium M with good recording quality.

[0155] After recording is completed, the recording head 20H is brought into a capping state in which the nozzle N is covered by the cap 64 ( Fig. 9 First, the recording unit 20 starts from the recording position PH4 ( Figure 6 ) to the standby position PH2( Figure 7) evacuation. This movement is performed by the control unit 100 driving the motor 41 in reverse. Next, the control unit 100 causes the cap unit 62 to move from the evacuation position PC1 ( Figure 7 ) to the capping position PC2( Figure 8 ) is moved. This movement is performed by the control unit 100 driving the first slide motor 75 to rotate forward. Next, the control unit 100 causes the recording unit 20 to move from the standby position PH2 ( Figure 8 ) moves to the capping position PH3( Fig. 9 ). The movement in the capping process is performed by the control unit 100 driving the lifting motor 41 to rotate forward. In the capping state, the recording head 20H is pressed against the cap 64 with an appropriate capping pressure. In this capping state, the drying of the liquid such as ink in the nozzle N is effectively suppressed.

[0156] In addition, during cleaning, the closed space surrounded by the nozzle surface 20N and the cap 64 is depressurized to a desired negative pressure in the capped state, so that cleaning is appropriately performed to forcibly discharge the liquid from the nozzle N. It should be noted that cleaning is not limited to the configuration of depressurizing the inside of the cap 64, and it may also be performed on the upstream side of the nozzle N, for example, on the liquid storage portion 101 (see Figure 2 ) is pressurized and the liquid is forcibly discharged from the nozzle N to perform cleaning.

[0157] In addition, the control unit 100 manages the flushing period during recording. When the flushing period is reached during recording, the control unit 100 flushes the recording head 20H. If the recording on the medium M being recorded is completed when the flushing period is reached, the subsequent conveyance of the medium M is temporarily stopped. First, the recording unit 20 is started from Figure 6 The recording position PH4 shown is moved to Figure 7 The standby position PH2 shown in the figure is shown in the figure. Next, the cap portion 62 is moved from the avoidance position PC1 to the +A direction to the capping position PC2. Furthermore, the position after the recording unit 20 is slightly lowered from the standby position PH2 can also be set as the flushing position. Then, the recording head 20H performs flushing by ejecting liquid from the nozzle N toward the cap 64. As a result, the thickened ink, bubbles, etc. in the nozzle N are discharged together with the ink and other liquids, thereby eliminating or preventing the clogging of the nozzle N. For this reason, the recording head 20H performs recording on the medium M with high recording quality.

[0158] However, during recording, a jam error may occur in which the medium M is stuck in the middle of the conveying path T. The control unit 100 monitors the load of the feed motor 103 and the conveying motor 104 during the conveying process, and detects a jam of the medium M when the load of either the motor 103 or 104 exceeds a predetermined threshold. When a jam is detected, the control unit 100 considers it a jam error and stops the recording device 10 urgently. In addition, even in cases other than a jam, a case where the power plug (not shown) of the recording device 10 is unplugged during power-on or recording operation also constitutes an error. When such an error occurs, the position of the recording unit 20 that can be obtained by the control unit 100 may become uncertain, or even if the position can be obtained, the position is inaccurate.

[0159] The display unit 14A displays a notification that a jam has occurred and an instruction to eliminate the jam. For example, the user opens the cover door 16 to expose the conveying path T and removes the jammed medium M. When the door sensor 90 detects that the cover door 16 is open, the control unit 100 enables the interlock to function. Then, when the user who wants to eliminate the jam closes the cover door 16 and all the cover doors 16 to 18 are in a closed state, the door sensor 90 changes to a detection state. The control unit 100 releases the state in which the interlock functions by changing the door sensor 90 to a detection state. In the case of an error such as this jam error in which any of the cover doors 16 to 18 is opened, the control unit 100 resets the count values ​​of the counters 111 to 114 and the position data PD of the memory 116. On the other hand, in the case of an error in which none of the cover doors 16 to 18 are opened, the control unit 100 maintains the count values ​​of the counters 111 to 114 and the position data PD of the memory 116.

[0160] When the control unit 100 detects that the error has been resolved by receiving the detection of the door sensor 90 or the operation of the operation unit 14, the control unit 100 executes Fig.19 The following is a flowchart of the recovery process. Fig.19 The recovery process when an error occurs is described. It should be noted that when an error occurs, there are cases where the count values ​​of the counters 111 to 114 and the position data PD of the memory 116 are reset, such as in the case of a jam error, and there are cases where they are not reset even if the error is accompanied by an emergency stop. In the case of an error that is not reset, the control unit 100 can identify the current positions of the recording unit 20, the capping unit 62, and the wiping unit 82 based on the count values ​​of the counters 111 to 114 or the position data PD of the memory 116. However, in any error case accompanied by an emergency stop of the recording device 10, the positions of the recording unit 20, the first maintenance unit 60, and the second maintenance unit 80 become uncertain. It should be noted that due to the resetting of the fourth counter 114, the position of the recording position PH4 when adjusted to the gap corresponding to the type of medium becomes uncertain.

[0161] First, in step S11, the control unit 100 determines whether it is reset. If it is reset, the process proceeds to step S13. On the other hand, if it is not reset, the process proceeds to step S12.

[0162] In step S12, the control unit 100 determines whether the state is capped. If the state is capped, the routine ends. Fig. 9 As shown, the cap 64 is held in the capped state for capping the recording head 20H. On the other hand, if it is not in the capped state, the process proceeds to step S13.

[0163] In step S13, the control unit 100 performs a retracting operation of the recording unit 20. The control unit 100 drives the lifting motor 41 in reverse direction to retract the recording unit 20 from the position at which the error occurred toward the retracting position PH1. Fig.16 The avoidance position PH1 is shown.

[0164] In the next step S14, the control unit 100 performs a retracting action of the cap unit 62. The control unit 100 drives the first slide motor 75 to rotate forward, so that the cap unit 62 retracts from the position at the time of the error to the retracting position PC1. Fig.17 The avoidance position PC1 is shown.

[0165] In step S15, the control unit 100 performs a retracting action of the wiping unit 82. The control unit 100 drives the second slide motor 87 in reverse direction to retract the cap unit 62 from the position at the time of the error to the retracting position PW1. Fig.11 , Fig.12 , Fig.14 In the present embodiment, the control unit 100 performs the avoidance action of the wiping unit 82 in step S15 simultaneously with the avoidance action of the cap unit 62 in step S14. However, first, the cap unit 62 and the wiping unit 82 are not both at the position PW1. Fig.14 When one of the cap 62 and the wiper 82 is located in the overlap region OA, the cap 62 and the wiper 82 are moved from the overlap region OA to a retracted position outside the overlap region OA by the processing of steps S14 and S15.

[0166] In step S16, it is determined whether the sensors SE1 to SE3 have detected. The recording unit 20, the cap unit 62, and the wiping unit 82 are moved to the avoidance positions PH1, PC1, and PW1, respectively, so that they are detected by the sensors SE1 to SE3, respectively. The recording unit 20, the cap unit 62, and the wiping unit 82 are detected by the sensors SE1 to SE3, so that the respective origin search operations are performed. In step S16, the control unit 100 determines whether the recording unit 20, the cap unit 62, and the wiping unit 82 have all searched for the origin. When all the sensors SE1 to SE3 have detected, the process proceeds to step S17. On the other hand, when one of the sensors SE1 to SE3 has not detected even after a predetermined time has passed, the process proceeds to step S18.

[0167] In step S17, the control unit 100 performs a capping operation. Specifically, the control unit 100 first causes the recording unit 20 to Fig.17 The avoidance position PH1 shown moves in the +B direction to Figure 7 Next, the control unit 100 causes the cap unit 62 to move from Figure 7 The avoidance position PC1 shown moves to Figure 8 Furthermore, the control unit 100 moves the recording unit 20 from the standby position PH2 to the capping position PH3 in the +B direction. In this way, the recording head 20H is capped with the cap 64.

[0168] On the other hand, in step S18, the control unit 100 performs error notification. Specifically, the control unit 100 displays the fact that an error has occurred on the display unit 14A.

[0169] Effects of implementation methods

[0170] As described above in detail, according to this embodiment, the following effects can be obtained.

[0171] (1) The recording device 10 includes: a recording unit 20 for recording on a medium M, a first maintenance unit 60, a first moving mechanism 31 for moving the recording unit 20, a second moving mechanism 70 for moving the first maintenance unit 60, and a control unit 100. The recording unit 20 has a nozzle face 20N in which a nozzle N is opened, and ejects liquid from the nozzle N. The first maintenance unit 60 performs maintenance on the recording unit 20. The first moving mechanism 31 moves the recording unit 20 in a first direction B intersecting the nozzle face 20N. The recording unit 20 can move to a recording position PH4 for recording on a medium and a first avoidance position PH1 avoided from the recording position PH4, the first maintenance unit 60 can move to a maintenance position for performing maintenance on the nozzle face 20N and a second avoidance position PC1 avoided from the maintenance position, and the second moving mechanism 70 moves the first maintenance unit 60 in a second direction A along the nozzle face 20N. The control unit 100 controls the operation of the first moving mechanism 31 and the second moving mechanism 70. When an error occurs, the control unit 100 causes the recording unit 20 to evacuate in the first direction B away from the first maintenance unit 60. After the recording unit 20 evacuates, the first maintenance unit 60 is caused to evacuate in the second direction A. According to this configuration, before the first maintenance unit 60 starts to move, the recording unit 20 moves in the first direction B away from the first maintenance unit 60, thereby preventing the first maintenance unit 60 from interfering with the recording unit 20 and preventing the recording unit 20 from being damaged.

[0172] Specifically, the error refers to an error in which the position of the recording unit becomes uncertain, such as a jam error in which the medium is jammed or a power off error in which the power plug is unplugged while the recording device is powered on.

[0173] (2) The recording device 10 includes: a first sensor SE1 configured to detect the recording unit 20 when it is located at the first avoidance position PH1; and a second sensor SE2 configured to detect the first maintenance unit 60 when it is located at the second avoidance position PC1. The first sensor SE1 is configured to detect the recording unit 20 when it is located at the first avoidance position PH1. The second sensor SE2 is configured to detect the first maintenance unit 60 when it is located at the second avoidance position PC1. The control unit 100 detects that the recording unit 20 and the first maintenance unit 60 are located at the first avoidance position PH1 and the second avoidance position PC1, respectively, based on the detection results of the first sensor SE1 and the second sensor SE2. According to this configuration, the recording unit 20 and the first maintenance unit 60 can detect their own positions at the avoidance positions PH1 and PC1, respectively, by moving in the avoidance direction. Therefore, the first maintenance unit 60 can detect its own position while avoiding interference with the recording unit 20, and the recovery action can be accelerated. For example, in the case where the detection position capable of detecting the self-position is located in the opposite direction to the avoidance position PH1 relative to the recording position PH4, the avoidance action and the self-position detection action need to be performed separately, and the recovery action is delayed accordingly. In contrast, since the detection position capable of detecting the self-position is located in the same direction as the avoidance position PH1 relative to the recording position PH4, the recovery action can be accelerated while avoiding interference between the first maintenance unit 60 and the recording unit 20.

[0174] (3) The area in which the recording unit 20 can move is set as the first moving area MA1, the area in which the first maintenance unit 60 can move is set as the second moving area MA2, and the area in which the first moving area MA1 and the second moving area MA2 overlap is set as the interference area IA. In this case, the first sensor SE1 and the second sensor SE2 can detect the recording unit 20 and the first maintenance unit 60 located outside the interference area IA. According to this configuration, since the first sensor SE1 and the second sensor SE2 are located outside the interference area IA, the risk of the sensors SE1 and SE2 misidentifying the recording unit 20 and the first maintenance unit 60 can be reduced.

[0175] (4) When the recording unit 20 is detected by the first sensor SE1 and the first maintenance unit 60 is detected by the second sensor SE2, the entire recording unit 20 is located outside the interference area IA, and the entire first maintenance unit 60 is located outside the interference area IA. According to this configuration, since the recording unit 20 and the first maintenance unit 60 are reliably located outside the interference area IA, the risk of collision between the recording unit 20 and the first maintenance unit 60 when one of them is moved into the interference area IA can be reduced.

[0176] (5) The first maintenance portion 60 is a cap portion 62 that contacts and seals the nozzle surface 20N. The cap portion 62 includes a cap 64 as an example of a contact portion that contacts the nozzle surface 20N, and a spring 65 as an example of a biasing portion that biases the cap 64 toward the nozzle surface 20N. The cap 64 is supported by the spring 65. According to this configuration, by making it a structure that uses the spring 65 to bias the cap portion 62, the nozzle surface 20N can be reliably sealed. In addition, in this case, even if the recording portion 20 moves from the recording position PH4 in the direction of evasion, the cap portion 62 may temporarily contact the nozzle surface 20N. In this state, when the recording portion 20 and the cap portion 62 are to be evacuated at the same time, the cap portion 62 may rub against the nozzle surface 20N. In this case, not only the nozzle surface 20N is damaged, but also a load in an unexpected direction is applied to the cap 64, which may damage the cap 64. Therefore, by moving the cap portion 62 after the recording unit 20 starts to evacuate, the risk of the nozzle surface 20N and the cap 64 being damaged can be reduced.

[0177] (6) The recording unit 20 is separated from the first maintenance unit 60 at the maintenance position when it is detected by the first sensor SE1. The control unit 100 causes the first maintenance unit 60 to evacuate after the recording unit 20 is detected by the first sensor SE1. According to this configuration, the cap unit 62 starts to move in the evacuation direction after the recording unit 20 moves to the evacuation position PH1 outside the interference area IA, thereby reducing the risk of damage to the recording unit 20 and the nozzle surface 20N.

[0178] (7) The first maintenance unit 60 is a capping unit 62 that contacts and caps the nozzle surface 20N. When the recording unit 20 and the first maintenance unit 60 are detected by the first sensor SE1 and the second sensor SE2, the control unit 100 caps the recording unit 20 by the capping unit 62. According to this configuration, since the capping unit 62 caps immediately after detecting its own position, it is possible to prevent the nozzle surface 20N from drying.

[0179] (8) The recording device 10 includes: a conveying path T for conveying the medium M to be recorded by the recording unit 20; and a jam detection unit 115 for detecting whether the medium M is jammed on the conveying path T. When the capping unit 62 is located at the capping position PC2, the capping unit 62 is separated from the conveying path T. When the recording unit 20 and the first maintenance unit 60 are detected by the first sensor SE1 and the second sensor SE2, the control unit 100 uses the capping unit 62 to cap the recording unit 20 even when the jam detection unit 115 determines that there is a jam. According to this configuration, when a jam usually occurs, the nozzle surface 20N is exposed without being capped until the medium M is removed. As a result, the nozzle surface 20N becomes significantly dried. For this reason, when a jam occurs, capping is performed even before the jam is released. Thus, the nozzle surface 20N is prevented from drying.

[0180] (9) The recording device 10 includes a second maintenance unit 80 and a third moving mechanism 83 that moves the second maintenance unit 80 in a third direction X. The second maintenance unit 80 can move in the third direction X that is orthogonal to the first direction B and the second direction A, and perform maintenance on the recording unit 20. The control unit 100 can also control the third moving mechanism 83. The area in which the first maintenance unit 60 can move is set as the second moving area MA2, the area in which the second maintenance unit 80 can move is set as the third moving area MA3, and the area in which the second moving area MA2 and the third moving area MA3 overlap is set as the overlapping area OA. At this time, when one of the first maintenance unit 60 and the second maintenance unit 80 performs maintenance in the overlapping area OA, the other avoids the overlapping area OA. In the event of an error, the control unit 100 causes the second maintenance unit 80 to avoid the first maintenance unit 60 at the same time. According to this configuration, the first maintenance unit 60 and the second maintenance unit 80 do not take actions that interfere with each other. For this reason, by moving simultaneously after the recording unit 20 avoids, the self-position detection can be performed in advance.

[0181] Change Example

[0182] The above-mentioned embodiment may also be modified as in the following modification examples. Furthermore, the above-mentioned embodiment and the modification examples described below may be appropriately combined as further modification examples, and the modification examples described below may also be appropriately combined with each other as further modification examples.

[0183] like Fig. 20As shown, the first maintenance unit 60 is a capping unit 62 that contacts the nozzle surface 20N to perform a capping operation. The first maintenance unit 60 performs a capping operation by contacting the nozzle surface 20N approaching from outside the interference area IA in the interference area IA. Alternatively, when the recording unit 20 is detected by the first sensor SE1, the entire recording unit 20 is located outside the interference area IA, and when the first maintenance unit 60 is detected by the second sensor SE2, at least a portion of the first maintenance unit 60 is located within the interference area IA. Fig. 20 In the example, the first maintenance unit 60 is located at the position PC4 between the capping position PC2 and the avoidance position PC1 when it is detected by the second sensor SE2. According to this structure, when the positions of the recording unit 20 and the cap unit 62 are known by the sensors SE1 and SE2, the cap unit 62 can be immediately moved to the capping position PC2 within the interference area IA. Therefore, compared with the structure in which the position of the cap unit 62 is detected when the cap unit 62 is located outside the interference area IA as a whole, the recording head 20H can be capped earlier by the cap 64, and the nozzle N opened on the nozzle surface 20N can be effectively prevented from drying.

[0184] The timing of causing the first maintenance unit 60 to start moving from the erroneous stop position to the avoidance direction in which the erroneous stop position can be avoided is not limited to when the recording unit 20 is detected by the first sensor SE1. For example, the first maintenance unit 60 may start moving in the avoidance direction before the recording unit 20 is detected by the first sensor SE1. For example, after the recording unit 20 starts moving from the erroneous stop position to the avoidance direction, the moving distance of the recording unit 20 from the erroneous stop position is measured. When the measured distance reaches a value corresponding to the position where the recording unit 20 has reached to avoid collision with the first maintenance unit 60, the avoidance action of the first maintenance unit 60 may be started.

[0185] In the above embodiment, the first maintenance unit 60 is the cap unit 62 and the second maintenance unit 80 is the wiping unit 82 . However, conversely, the first maintenance unit 60 may be the wiping unit 82 and the second maintenance unit 80 may be the cap unit 62 .

[0186] The rack and pinion mechanism may have the rack on the movable body and the drive gear on the device body side, or vice versa. That is, the drive gear may be provided on the movable body and the rack may be provided on the device body side.

[0187] The first moving mechanism 31, the second moving mechanism 70, and the third moving mechanism 83 are formed as rack and pinion mechanisms, but may be formed as other moving mechanisms, for example, a screw mechanism, a belt moving mechanism, or the like.

[0188] Although the recording device 10 of the above embodiment includes two types of maintenance parts, the first maintenance part 60 and the second maintenance part 80, as movable bodies that can move in the direction along the nozzle surface 20N, it is also possible to have a configuration without the second maintenance part 80 and with the first maintenance part 60. In this case, the first maintenance part 60 may be the cap part 62 or the wiper part 82.

[0189] It is also possible to have a third maintenance unit in addition to the first maintenance unit 60 and the second maintenance unit 80. The three maintenance units are configured to move in three different directions along the nozzle surface 20N, for example. For example, when viewed from a direction orthogonal to the nozzle surface 20N, the three maintenance units can move linearly on a path passing through a position opposite to the nozzle surface 20N from directions that differ by 120 degrees. In addition, it is also possible to have a structure in which a maintenance unit can move on a moving path that is located on the opposite side of a recording position that is arranged linearly with respect to the moving path of the recording unit 20. In other words, for at least M types (wherein M is a natural number less than N) of the N types (wherein N is a natural number greater than 2) of the maintenance units, the moving direction thereof may not necessarily be the direction along the nozzle surface 20N. It should be noted that the recording device 10 may also be configured as follows: it has four or more maintenance units of different types, and the four or more maintenance units can move in different directions on a path passing through a position opposite to the nozzle surface 20N.

[0190] In the above-mentioned embodiment, the recording device 10 includes two types of maintenance parts, for example, the first maintenance part and the second maintenance part, as movable parts that can move in the direction along the nozzle surface 20N, but it can also be configured to include the first maintenance part 60 and a movable part that performs other functions other than maintenance. In other words, it is also possible to include a movable part that performs functions other than the maintenance function in addition to the first maintenance part. The movable part can be, for example, a camera part that photographs the nozzle surface 20N, or a sensor unit that has a sensor that detects stains such as ink on the nozzle surface 20N, or a sensor unit that has a sensor that detects clogging of the nozzle N opened on the nozzle surface 20N.

[0191] The first maintenance part 60 is not limited to the cap part 62 or the wiping part 82. The first maintenance part 60 may be, for example, a flushing tank. It should be noted that the first maintenance part 60 may also be maintenance parts other than these.

[0192] The wiping portion 82 includes a blade-shaped wiping member 81, but the wiping member 81 may be cloth. In other words, the wiping member 81 may be a cloth wiper.

[0193] The control unit 100 may be a software configuration in which a computer such as a CPU executes a program, or a hardware configuration based on an electronic circuit such as an ASIC. In addition, the control unit 100 may be a configuration based on the cooperation of software and hardware.

[0194] The medium M is not limited to paper, and may be a film, medium, cloth, nonwoven fabric, laminated medium, or the like made of synthetic resin.

[0195] The recording device 10 is not limited to the inkjet recording method, and may be, for example, a printing device of the inkjet recording method.

[0196] The recording device 10 is not limited to an inkjet type, and may be an electrophotographic type such as a dot-impact type, a laser type, or an LED type.

[0197] The recording device 10 may also be a device for ejecting other liquids besides ink. It may also be a liquid ejecting device that ejects a liquid body containing, in a dispersed or dissolved form, electrode materials, color materials (pixel materials) and other functional materials used in the manufacture of liquid crystal displays, EL (electroluminescent) displays and surface-emitting displays. In addition, it may also be a liquid ejecting device that ejects biological organic matter used in the manufacture of biochips, or a liquid ejecting device that is used as a precision pipette and ejects a liquid as a sample. Furthermore, it may also be a liquid ejecting device that ejects a transparent resin liquid such as a thermosetting resin onto a substrate to form a tiny hemispherical lens (optical lens) used in an optical communication element, etc., a liquid ejecting device that ejects an etching liquid such as an acid or alkali for etching a substrate, etc., or a liquid ejecting device that ejects a fluid body such as a gel (e.g., a physical gel). Furthermore, the liquid ejecting device may also be a 3D printer that ejects a photocurable resin liquid in an inkjet manner to form a three-dimensional shape of a three-dimensional object. As described above, the recording device 10 is not limited to a device that performs recording on a medium M such as paper, and may be a device that records wiring or circuits on a medium M such as a substrate using ink containing these materials.

[0198] Hereinafter, technical ideas grasped from the above-mentioned embodiment and modified examples will be described together with the effects.

[0199] (A) The recording device comprises: a recording unit having a nozzle surface in which a nozzle is opened, and the recording unit records on a medium by ejecting liquid from the nozzle; a first maintenance unit that performs maintenance on the recording unit; a first moving mechanism that moves the recording unit in a first direction intersecting the nozzle surface; a second moving mechanism that moves the first maintenance unit in a second direction along the nozzle surface; and a control unit that controls the actions of the first moving mechanism and the second moving mechanism, the recording unit being capable of moving to a recording position for recording on a medium and a first avoidance position avoiding from the recording position, the first maintenance unit being capable of moving to a maintenance position for performing maintenance on the nozzle surface and a second avoidance position avoiding from the maintenance position, and in the event of an error, the control unit causes the recording unit to avoid along the first direction away from the first maintenance unit, and causes the first maintenance unit to avoid along the second direction after the recording unit has avoided.

[0200] According to this configuration, the recording unit moves in the first direction away from the first maintenance unit before the first maintenance unit starts to move, thereby preventing the first maintenance unit from interfering with the recording unit and preventing the recording unit from being damaged.

[0201] (B) The above-mentioned recording device may also include: a first sensor, configured to detect the recording unit when it is located at the first avoidance position; and a second sensor, configured to detect the first maintenance unit when it is located at the second avoidance position, and the control unit detects that the recording unit and the first maintenance unit are located at the first avoidance position and the second avoidance position, respectively, based on the detection results of the first sensor and the second sensor.

[0202] According to this configuration, the recording unit and the first maintenance unit can each detect their own position at the avoidance position by moving in the avoidance direction. For this reason, the first maintenance unit can detect its own position while avoiding interference with the recording unit, and the recovery action can be accelerated. For example, in the case of a configuration in which the detection position capable of detecting its own position is located in the opposite direction of the avoidance position relative to the recording position, the avoidance action and the self-position detection action need to be performed separately, and the recovery action is delayed. In contrast, since the detection position capable of detecting its own position is located in the same direction as the avoidance position relative to the recording position, the recovery action can be accelerated while avoiding interference with the recording unit.

[0203] (C) In the above-mentioned recording device, when the area in which the recording unit can move is set as a first moving area, the area in which the first maintenance unit can move is set as a second moving area, and the area in which the first moving area overlaps with the second moving area is set as an interference area, the first sensor and the second sensor can detect the recording unit and the first maintenance unit outside the interference area.

[0204] According to this configuration, since the first sensor and the second sensor are located outside the interference area, the risk of the sensor erroneously recognizing the recording unit and the first maintenance unit can be reduced.

[0205] (D) In ​​the above-mentioned recording device, it may also be that: the first maintenance part is a cap part that contacts with the nozzle surface to perform sealing, and the first maintenance part performs sealing by contacting with the nozzle surface approaching from outside the interference area in the interference area, and when the recording part is detected by the first sensor, the entire recording part is located outside the interference area, and when the first maintenance part is detected by the second sensor, a part of the first maintenance part is located in the interference area.

[0206] According to this configuration, when the second sensor knows the position of the capping part and intends to cap, the capping part only needs to move a relatively short distance to the capping position in the interference area. Therefore, compared with the case where the capping part is detected as being outside the interference area, capping can be performed immediately, which can prevent the nozzle surface from drying.

[0207] (E) In the above-mentioned recording device, when the recording unit is detected by the first sensor and the first maintenance unit is detected by the second sensor, the entire recording unit is located outside the interference area and the entire first maintenance unit is located outside the interference area.

[0208] According to this configuration, since it is known that the recording unit and the first maintenance unit are reliably located outside the interference area, it is possible to reduce the risk of collision with the other when one is moved into the interference area.

[0209] (F) In the above-mentioned recording device, it may also be that: the first maintenance part is a cap part that contacts the nozzle surface to perform a capping, the cap part has a contact part that abuts the nozzle surface and a force applying part that applies force to the contact part toward the nozzle surface, and the contact part is supported by the force applying part.

[0210] According to this configuration, by making it a structure in which the force-applying portion applies force to the cap portion, the nozzle surface can be reliably capped. In addition, in this case, even if the recording portion moves from the recording position to the avoidance direction, the cap portion may temporarily abut against the nozzle surface. In this state, if the recording portion and the cap portion are to be avoided at the same time, the cap portion may rub against the nozzle surface. In this case, not only the nozzle surface is damaged, but also a load in an unexpected direction is applied to the abutment portion, which may cause damage. For this reason, by moving the cap portion after the recording portion starts to avoid, the risk of damage to the nozzle surface and the abutment portion can be reduced.

[0211] (G) In the above recording device, the recording unit may be separated from the first maintenance unit when located at the maintenance position when the recording unit is detected by the first sensor, and the control unit may cause the first maintenance unit to evacuate after the recording unit is detected by the first sensor.

[0212] According to this configuration, the risk of damage to the recording section and the nozzle surface can be reduced by starting the movement of the cap section in the evacuation direction after the recording section moves to the evacuation position outside the interference area.

[0213] (H) In the above-mentioned recording device, it may also be that: the first maintenance part is a cap part that contacts the nozzle surface to perform sealing, and when the recording part and the first maintenance part are detected by the first sensor and the second sensor, the control part uses the cap part to seal the recording part.

[0214] According to this configuration, since capping is performed immediately after the own position is detected, it is possible to prevent the nozzle surface from drying out.

[0215] (I) The above-mentioned recording device may also include: a conveying path for conveying the medium to be recorded through the recording unit; and a jam detection unit for detecting whether the medium is jammed on the conveying path, and when the cap unit is located at the capping position, the cap unit is separated from the conveying path, and when the recording unit and the first maintenance unit are detected by the first sensor and the second sensor, the control unit uses the cap unit to seal the recording unit even if the jam detection unit determines that there is a jam.

[0216] According to this configuration, when a jam usually occurs, the nozzle surface remains uncapped and exposed until the medium is removed. As a result, the nozzle surface becomes significantly dry. Therefore, when a jam occurs, capping is performed even before the jam is released. Thus, the nozzle surface is prevented from drying out.

[0217] (J) The above-mentioned recording device may also include: a second maintenance unit capable of moving in a third direction orthogonal to the first direction and the second direction to perform maintenance on the recording unit; and a third moving mechanism capable of moving the second maintenance unit in the third direction. The control unit may also control the third moving mechanism. When the area capable of moving the first maintenance unit is set as the second moving area, the area capable of moving the second maintenance unit is set as the third moving area, and the area where the second moving area overlaps with the third moving area is set as the overlapping area, when one of the first maintenance unit and the second maintenance unit performs maintenance in the overlapping area, the other avoids the overlapping area. In the event of the error, the control unit causes the second maintenance unit to avoid the overlapping area at the same time as the avoidance of the first maintenance unit.

[0218] According to this configuration, the first maintenance unit and the second maintenance unit do not take mutually interfering actions. Therefore, by moving simultaneously after the recording unit has evaded, the self-position detection can be performed in advance.

Claims

1. A recording device, characterized in that: have: a recording unit having a nozzle face where a nozzle opens, and recording on a medium by ejecting liquid from the nozzle; a first maintenance unit, for performing maintenance on the recording unit; a first moving mechanism that moves the recording section in a first direction intersecting the nozzle surface; a second moving mechanism, causing the first maintenance portion to move in a second direction along the nozzle surface; as well as a control unit, controlling the actions of the first moving mechanism and the second moving mechanism, The recording unit is movable to a recording position for recording on a medium and a first retreat position retreated from the recording position. The first maintenance unit is movable to a maintenance position for performing maintenance on the nozzle surface and a second retreat position retreated from the maintenance position. When an error occurs, the control unit causes the recording unit to retract in the first direction away from the first maintenance unit, and causes the first maintenance unit to retract in the second direction after the recording unit retracts.

2. The recording device according to claim 1, characterized in that The recording device comprises: a first sensor configured to detect the recording portion when the recording portion is located at the first avoidance position; and a second sensor configured to detect the first maintenance portion when the first maintenance portion is located at the second avoidance position; The control unit detects that the recording unit and the first maintenance unit are located at the first avoidance position and the second avoidance position, respectively, based on detection results of the first sensor and the second sensor.

3. The recording device according to claim 2, characterized in that When the area in which the recording unit can move is set as the first moving area, the area in which the first maintenance unit can move is set as the second moving area, and the area in which the first moving area and the second moving area overlap is set as the interference area, The first sensor and the second sensor can detect the recording unit and the first maintenance unit outside the interference area.

4. The recording device according to claim 3, characterized in that The first maintenance part is a cap part that contacts with the nozzle surface to seal the nozzle. The first maintenance portion performs capping by contacting the nozzle surface approaching from outside the interference area in the interference area, When the recording portion is detected by the first sensor, the entire recording portion is located outside the interference area. In a state where the first maintenance portion is detected by the second sensor, a portion of the first maintenance portion is located within the interference area.

5. The recording device according to claim 3, characterized in that When the recording unit is detected by the first sensor and the first maintenance unit is detected by the second sensor, the entire recording unit is located outside the interference area and the entire first maintenance unit is located outside the interference area.

6. The recording device according to any one of claims 2 to 5, characterized in that The first maintenance part is a cap part that contacts with the nozzle surface to seal the nozzle. The cap portion includes a contact portion contacting the nozzle surface and a biasing portion biasing the contact portion toward the nozzle surface. The contact portion is supported by the biasing portion.

7. The recording device according to claim 6, characterized in that The recording portion is separated from the first maintenance portion when it is located at the maintenance position in a state where the recording portion is detected by the first sensor. The control unit causes the first maintenance unit to retract after the recording unit is detected by the first sensor.

8. The recording device according to claim 2, characterized in that The first maintenance part is a cap part that contacts with the nozzle surface to seal the nozzle. When the recording unit and the first maintenance unit are detected by the first sensor and the second sensor, the control unit caps the recording unit using the cap unit.

9. The recording device according to claim 8, characterized in that The recording device comprises: a conveying path for conveying a medium to be recorded by the recording unit; and The jam detection unit detects whether the medium is jammed on the conveying path. When the capping part is located at the capping position, the capping part is separated from the conveying path. When the recording unit and the first maintenance unit are detected by the first sensor and the second sensor, the control unit caps the recording unit using the cap unit even when the jam detection unit determines that a jam occurs.

10. The recording device according to claim 1, characterized in that The recording device comprises: a second maintenance unit capable of moving in a third direction orthogonal to the first direction and the second direction, the second maintenance unit performing maintenance on the recording unit; as well as a third moving mechanism, causing the second maintenance portion to move in the third direction; The control unit can also control the third moving mechanism. When the area in which the first maintenance unit can move is set as the second moving area, the area in which the second maintenance unit can move is set as the third moving area, and the area in which the second moving area overlaps with the third moving area is set as the overlapping area, when one of the first maintenance unit and the second maintenance unit performs maintenance in the overlapping area, the other avoids the overlapping area. When the error occurs, the control unit causes the second maintenance unit to evacuate simultaneously with the evacuation of the first maintenance unit.

11. The recording device according to claim 1, characterized in that The error is an error in which the position of the recording portion becomes uncertain.

12. The recording device according to claim 11, characterized in that The error is an error in which a medium is jammed or an error in which a power supply is cut off.

13. The recording device according to claim 1, characterized in that The control unit causes the first maintenance unit to retract in the second direction after the recording unit moves toward the first retracted position and before the recording unit is located at the first retracted position.

14. A method for controlling a recording device, characterized in that: The recording device comprises: a recording unit having a nozzle face where a nozzle opens, and recording on a medium by ejecting liquid from the nozzle; a first maintenance unit, for performing maintenance on the recording unit; a first moving mechanism that moves the recording unit in a first direction intersecting the nozzle surface to a recording position for recording on a medium and a first avoidance position away from the recording position; as well as The second moving mechanism moves the first maintenance unit in a second direction along the nozzle surface to a maintenance position for performing maintenance on the nozzle surface and a second avoidance position avoidance from the maintenance position. In the control method of the recording device, When an error occurs, the recording unit is moved away from the first maintenance unit along the first direction. The first maintenance portion is retracted in the second direction after the recording portion is retracted.

15. A method for controlling a recording device, characterized in that: The recording device comprises: a recording unit having a nozzle face where a nozzle opens, and recording on a medium by ejecting liquid from the nozzle; a first maintenance unit, for maintaining the recording unit; a second maintenance unit that performs maintenance on the recording unit differently from the first maintenance unit; a first moving mechanism that moves the recording unit in a first direction intersecting the nozzle surface to a recording position for recording on a medium and a first avoidance position away from the recording position; a second moving mechanism for moving the first maintenance unit in a second direction along the nozzle surface to a maintenance position for performing maintenance on the nozzle surface and a second avoidance position for avoiding the maintenance position; as well as a third moving mechanism, which moves the second maintenance part in a third direction orthogonal to the first direction and the second direction; In the control method of the recording device, When an error occurs, the recording unit is moved away from the first maintenance unit along the first direction. After the recording unit is retracted, the first maintenance unit is retracted along the second direction, The second maintenance unit is caused to evacuate from the movement area of ​​the first maintenance unit along the third direction simultaneously with the evacuation of the first maintenance unit.

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