Recording apparatus

Abstract

The invention relates to a recording apparatus. The prior art has a first technical problem in which miniaturization and motor heating are not considered, and a second technical problem in which miniaturization and stabilization are not considered. The recording apparatus includes: a recording unit that performs recording on a medium conveyed in a first direction; a recording-time transfer path that faces the recording unit; a guide path located below the recording transport path and guiding the medium leaving the recording transport path in a second direction opposite to the first direction; a discharge path located downstream of the recording transport path for discharging the recorded medium; a discharge roller disposed in the discharge path and conveying the medium downstream of the discharge path; a discharge motor for driving the discharge roller; a first path forming portion forming a lower surface of the recording transport path; and a second path forming portion forming an upper surface of the guide path, the discharge motor being disposed at a position sandwiched between the first path forming portion and the second path forming portion.

Description

Technical Field

[0001] The present invention relates to a recording device for recording on a medium. Background Art

[0002] Patent Document 1 discloses a printer in which a conveying path for recording paper is formed into a U-shape and a thermal head is arranged inside the U. In addition, in the printer, a stepping motor is arranged inside the U-shape and serves as a power source for a pinch roller for conveying recording paper.

[0003] Patent Document 1: Japanese Patent Application Publication No. 2001-253138

[0004] The motor is a heat source, and when the recording unit is an inkjet recording head, for example, the heat generated by the motor may adversely affect the ink ejection accuracy of the inkjet recording head. Even when the recording unit is a recording unit other than an inkjet recording head, there is concern about the influence caused by heat.

[0005] The printer described in Patent Document 1 realizes miniaturization and thinning of the device by arranging the stepping motor inside the U-shaped conveying path, but the stepping motor and the thermal head are arranged in the same space. Therefore, the heat generated by the stepping motor is directly transferred to the thermal head by radiation, and the adverse effect of the heat generated by the stepping motor on the thermal head is not considered. In other words, the structure described in Patent Document 1 does not take into account both miniaturization and motor heat generation. This is described below as the first technical problem in the prior art.

[0006] In addition, in the printer described in Patent Document 1, the stepping motor is disposed in a state of being exposed toward the upper surface of the device. In such a configuration, the operating sound of the motor is easily leaked from the upper surface of the device. For users, the leakage of noise from the upper surface of the device is easily irritating, and there is room for improvement. That is, the configuration described in Patent Document 1 is not a configuration that takes both miniaturization and stabilization into consideration. This is described below as the second technical problem in the prior art.

[0007] As described above, the prior art has a first technical problem and a second technical problem, and it is desired to solve at least one of the first technical problem and the second technical problem. Summary of the invention

[0008] The recording device of the present invention for solving the above-mentioned technical problems is characterized in that it comprises: a recording unit for recording a medium transported in a first direction; a recording transport path, which is a medium transport path opposite to the recording unit; a guide path, which is a medium transport path located below the recording transport path, and the guide path guides the medium leaving the recording transport path in a second direction opposite to the first direction; a discharge path, which is a medium transport path located downstream of the recording transport path and is used to discharge the recorded medium; a discharge roller, which is arranged on the discharge path and transports the medium toward the downstream of the discharge path; a discharge motor, which drives the discharge roller; a first path forming unit, which forms a lower surface of the recording transport path; and a second path forming unit, which forms an upper surface of the guide path, and the discharge motor is arranged at a position sandwiched between the first path forming unit and the second path forming unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a three-dimensional diagram of the printer's appearance.

[0010] Figure 2 This is a diagram of the media transport path of the printer as viewed from the left side of the device.

[0011] Figure 3 is a block diagram showing a control system of a printer.

[0012] Figure 4 It is a cross-sectional view of the shutter, the cover unit, and the first path forming member in a state where the shutter is located at the shielding position and the cover unit is located at the lowered position.

[0013] Figure 5 It is a cross-sectional view of the shutter, the cover unit, and the first path forming member in a state where the shutter is located at the open position and the cover is located at the lowered position.

[0014] Figure 6 It is a cross-sectional view of the shutter, the cover unit, and the first path forming member in a state where the shutter is located at the open position and the cover is located at the raised position.

[0015] Figure 7 This is a diagram of the printer's media transport path as viewed from the right side of the device.

[0016] Figure 8 The figure schematically shows each component of the printer.

[0017] Fig. 9 It is a plan view showing the arrangement of each component with respect to the first path forming member.

[0018] Fig.10 This is a diagram of the media transport path of the printer as viewed from the left side of the device.

[0019] Fig.11 It is a plan view showing the arrangement of each component with respect to the first path forming member.

[0020] Fig.12 It is a cross-sectional view of the shutter, the cover unit, and the first path forming member in a state where the shutter is located at the shielding position and the cover unit is located at the lowered position.

[0021] Description of Reference Numerals

[0022] 1: inkjet printer, 2: medium accommodating box, 3: pickup roller, 5: feed roller, 6: separation roller, 8: reverse roller, 9: first clamping roller, 10: second clamping roller, 11: third clamping roller, 12: medium supporting portion, 13: feed roller, 14: separation roller, 15: first conveying roller pair, 16: first driving roller, 17: first driven roller, 19: second conveying roller pair, 20: second driving roller, 21: second driven roller, 22: baffle, 22a: swing shaft, 27: third conveying roller pair, 27a: third driving roller, 27b: third driven roller, 28: fifth conveying roller pair, 28a: fifth driving roller, 28b: fifth driven roller, 29: discharge tray, 30: frame, 30a: front surface, 30b: right side, 30c: left side, 30d: upper surface, 30e: back, 30f: recess, 30g: discharge port, 31: guide frame, 32: pump unit, 33: waste liquid tray, 36: wiper unit, 37: wiper, 38: cover unit, 39: cover, 40: line head, 42: head surface, 44: nozzle, 46: shutter, 46a: boss, 47: ink containing portion, 51: first path forming portion, 51a: guide hole, 51b: upstream end portion, 51c: downstream end portion, 51d: recessed portion, 51e: opening portion, 52: second path forming portion, 53: third path forming portion, 54: fourth path forming portion, 55: fifth path forming portion, 56: sixth path forming portion, 57: seventh path forming portion, 65: fourth conveying roller pair, 66: fourth driving roller, 67: fourth driven roller, 80: control portion, 81: reverse motor, 81a: motor main body portion, 81b: Motor shaft, 82: Conveying motor, 82a: Motor body, 82b: Motor shaft, 83: Discharging motor, 83a: Motor body, 83b: Motor shaft, 84: Pump motor, 85: Head drive motor, 86: Shutter drive motor, 87: Cover drive motor, 88: Wiper drive motor, 90: Circuit substrate, 90a: Opening, 91: Power supply unit, R1a: First feed path, R1b: Second feed path, R2: Reversing path, R3: Conveying path during recording, R4: Guide path, R5: Discharging path. DETAILED DESCRIPTION

[0023] Next, the present invention will be briefly described.

[0024] The recording device involved in the first aspect is characterized in that it comprises: a recording unit that records a medium conveyed in a first direction; a recording conveying path that is a medium conveying path opposite to the recording unit; a guide path that is a medium conveying path located below the recording conveying path, and the guide path guides the medium leaving the recording conveying path in a second direction opposite to the first direction; a discharge path that is a medium conveying path located downstream of the recording conveying path and is used to discharge the recorded medium; a discharge roller that is arranged on the discharge path and transports the medium toward the downstream of the discharge path; a discharge motor that drives the discharge roller; a first path forming unit that forms a lower surface of the recording conveying path; and a second path forming unit that forms an upper surface of the guide path, and the discharge motor is arranged at a position sandwiched between the first path forming unit and the second path forming unit.

[0025] According to this aspect, the discharge motor as a heat source is arranged at a position sandwiched between the first path forming portion and the second path forming portion. Therefore, the first path forming portion is located between the discharge motor and the recording portion, and it is possible to suppress the heat generated by the discharge motor from being transmitted to the recording portion by radiation. Thus, it is possible to suppress the heat generated by the discharge motor from adversely affecting the recording portion. This is hereinafter referred to as the first effect of the discharge motor.

[0026] In addition, the discharge motor is arranged at a position sandwiched between the first path forming portion and the second path forming portion, so that a part or all of the discharge motor is covered by the first path forming portion, and therefore, the operating sound of the discharge motor is not easy to leak from the upper surface of the device. Hereinafter, this is referred to as the second effect of the discharge motor.

[0027] According to this aspect, at least any one of the first effect and the second effect of the discharge motor can be obtained. In addition, by arranging the discharge motor at a position sandwiched between the first path forming portion and the second path forming portion, the space between the recording transmission path and the guide path can be effectively utilized, and the device can be miniaturized.

[0028] The second aspect is an aspect subordinate to the first aspect, and is characterized in that the discharge path is formed in a shape that causes the surface of the recorded medium to bend inward and reverse, and a plurality of discharge rollers are provided, the plurality of discharge rollers include a first discharge roller and a second discharge roller, and the second discharge roller is located downstream relative to the first discharge roller.

[0029] When the discharge motor drives a plurality of drive objects, the discharge motor is more likely to generate heat. However, due to the effect of the first aspect, it is possible to suppress the heat generated by the discharge motor from adversely affecting the recording unit.

[0030] In addition, when recording is performed on both sides of a medium, curving with the side of the medium on which recording is performed being inward means curving with the side of the medium on which recording is performed last being inward.

[0031] A third aspect is an aspect dependent on the second aspect, wherein the first discharge roller and the second discharge roller are located in the first direction relative to the recording section, and the discharge motor is located in the first direction relative to the recording section.

[0032] According to this aspect, the first discharge roller and the second discharge roller are located in the first direction relative to the recording unit, and the discharge motor is also located in the first direction relative to the recording unit. Therefore, the distance between the discharge motor and the first discharge roller and the distance between the discharge motor and the second discharge roller can be reduced. As a result, the size of the unit that transmits power from the discharge motor to the first discharge roller and the unit that transmits power from the discharge motor to the second discharge roller can be reduced, which can contribute to the miniaturization of the entire device.

[0033] The fourth aspect is an aspect subordinate to the first aspect, and is characterized in that, with respect to the discharge motor, when observed from the normal direction of the surface of the medium transported in the transport path during recording, at least the motor body does not protrude from the first path forming part in the width direction, and the width direction is a direction intersecting the first direction.

[0034] According to this aspect, with respect to the discharge motor, when observed from the normal direction of the surface of the medium transported in the transport path during recording, at least the motor body does not protrude from the first path forming portion in the width direction which is a direction intersecting the first direction, thereby effectively suppressing the device size in the width direction.

[0035] Furthermore, since the motor body is entirely covered by the first path forming portion, the first effect or the second effect of the discharge motor can be effectively obtained.

[0036] It should be noted that this aspect is not limited to being subordinate to the above-mentioned first aspect, but may also be subordinate to the above-mentioned second or third aspect.

[0037] A fifth aspect is an aspect dependent upon the first aspect, and is characterized in that the discharge motor is in contact with the second path forming portion.

[0038] According to this aspect, since the discharge motor is in contact with the second path forming portion, heat generated by the discharge motor can be efficiently transferred to the second path forming portion.

[0039] Here, the second path forming portion forms the guide path, and the guide path is a path used when the medium recorded by the recording portion is reversed, so by increasing the temperature in the guide path, the medium on which the liquid is ejected can be accelerated to dry. That is, by effectively transferring the heat generated by the discharge motor to the second path forming portion, the medium on which the liquid is ejected can be accelerated to dry.

[0040] It should be noted that this aspect is not limited to being subordinate to the above-mentioned first aspect, but may also be subordinate to any one of the above-mentioned second to fourth aspects.

[0041] The sixth aspect is an aspect subordinate to the third aspect, and is characterized in that it comprises: a reversal path, which is a medium conveying path connected to the guide path, and the reversal path reverses the medium and merges with the recording conveying path; a reversal roller, which is arranged on the reversal path and transports the medium downstream of the reversal path; and a reversal motor, which drives the reversal roller, and the reversal motor is arranged at a position sandwiched between the first path forming portion and the second path forming portion.

[0042] In a configuration including the reversing motor in addition to the ejecting motor, there is a concern that heat generated by the reversing motor in addition to heat generated by the ejecting motor may adversely affect the recording unit.

[0043] According to this aspect, the reversing motor is provided at a position sandwiched between the first path forming portion and the second path forming portion. Therefore, it is possible to suppress the heat generated by the reversing motor from being transferred to the recording portion by radiation.

[0044] It should be noted that this aspect is not limited to being subordinate to the third aspect mentioned above, but may also be subordinate to any one of the first, second, fourth and fifth aspects mentioned above.

[0045] A seventh aspect is an aspect dependent upon the sixth aspect, characterized in that the reversing motor is located in the second direction relative to the recording unit.

[0046] According to this aspect, the reversing motor is located in the second direction relative to the recording unit, so the discharge motor and the reversing motor are arranged across the recording unit, that is, the discharge motor and the reversing motor are arranged separately. This can effectively prevent the heat generated by the discharge motor and the reversing motor from adversely affecting the recording unit.

[0047] The eighth aspect is an aspect subordinate to the seventh aspect, and is characterized in that it comprises: a conveying roller, which is arranged in the conveying path during recording and conveys the medium toward the downstream of the conveying path during recording; and a conveying motor, which drives the conveying roller, and the conveying motor is arranged at a position sandwiched between the first path forming part and the second path forming part.

[0048] In the configuration including the conveying motor in addition to the discharge motor and the reversing motor, heat generated by the conveying motor in addition to heat generated by the discharge motor and the reversing motor may adversely affect the recording unit.

[0049] According to this aspect, the transport motor is provided at a position sandwiched between the first path forming portion and the second path forming portion. Therefore, it is possible to suppress the heat generated by the transport motor from being transferred to the recording portion by radiation.

[0050] It should be noted that this aspect is not limited to being subordinate to the seventh aspect mentioned above, but may also be subordinate to any one of the first to sixth aspects mentioned above.

[0051] The ninth aspect is an aspect subordinate to the eighth aspect, and is characterized in that the conveying motor is arranged in the first direction relative to the recording portion, the discharge motor is arranged at one end portion relative to the first path forming portion in the width direction, and the conveying motor is arranged at the other end portion relative to the first path forming portion in the width direction, and the width direction is a direction intersecting the first direction.

[0052] According to this aspect, the ejection motor, the reversing motor, and the conveying motor are arranged separately from each other, thereby effectively preventing the heat generated by the ejection motor, the reversing motor, and the conveying motor from adversely affecting the recording unit.

[0053] The tenth aspect is an aspect belonging to any one of the first to ninth aspects, characterized in that the first path forming portion is formed by a component formed in a shape extending from a position opposite to the recording portion to the first direction and extending from a position opposite to the recording portion to the second direction.

[0054] According to this aspect, the first path forming portion is formed by a component formed in a shape extending from a position opposite to the recording portion to the first direction and from a position opposite to the recording portion to the second direction. Therefore, it is possible to properly suppress the heat generated by the discharge motor arranged on the lower side of the first path forming portion from being transmitted to the recording portion through radiation.

[0055] Furthermore, it is also possible to appropriately suppress the noise generated by the discharge motor from leaking from the upper surface of the device.

[0056] It should be noted that this aspect is not limited to being subordinate to the above-mentioned first aspect, but may also be subordinate to any one of the above-mentioned second to ninth aspects.

[0057] The eleventh aspect is an aspect subordinate to any one of the first to ninth aspects, and is characterized in that the recording portion is composed of a liquid ejection head that records on a medium by ejecting liquid, the first path forming portion has an opening portion at a position opposite to the recording portion, and the recording device comprises: a cover portion, which is arranged on the inner side of the opening portion and can be switched to a state of covering the liquid ejection surface of the liquid ejection head and a state of being separated from the liquid ejection surface; and a shield plate, which can be displaced to a shielding position that shields the opening portion and an opening position that opens the opening portion, and when the shield plate is located at the shielding position, it supports the medium passing through the position opposite to the liquid ejection head.

[0058] In the structure in which the first path forming portion includes an opening portion at a position opposite to the recording portion, and the cover portion is provided on the inner side of the opening portion, hot airflow generated by the discharge motor arranged on the lower side of the first path forming portion is likely to pass through the opening portion to the liquid ejection surface, and there is a concern that it will adversely affect the liquid ejection accuracy of the liquid ejection head.

[0059] Furthermore, there is also a concern that the operating sound generated by the discharge motor is likely to leak upwardly through the opening.

[0060] According to this aspect, a shield is provided, and the shield can be displaced to a shielding position that shields the opening and an opening position that opens the opening. When the shield is located at the shielding position, the medium passing through a position opposite to the liquid ejection head is supported. Therefore, when recording is performed on the medium, that is, when heat is generated in the discharge motor, the opening is blocked by the shield. Thus, it is possible to suppress the airflow containing the heat generated by the discharge motor from passing through the opening to the liquid ejection surface, and it is possible to suppress the reduction in liquid ejection accuracy.

[0061] Furthermore, it is also possible to suppress the operating sound generated by the discharge motor from leaking upwardly toward the device through the opening.

[0062] It should be noted that this aspect is not limited to being subordinate to the above-mentioned first aspect, but may also be subordinate to any one of the above-mentioned second to ninth aspects.

[0063] Hereinafter, the present invention will be described in detail.

[0064] Next, an inkjet printer 1 as a recording device for recording on a medium such as recording paper will be described. Hereinafter, the inkjet printer 1 will be simply referred to as a printer 1 .

[0065] In the XYZ coordinate system shown in each figure, the X-axis direction is the width direction of the device, that is, the width direction of the recording medium. From the perspective of the operator of the printer 1, the +X direction is the left direction, and the -X direction is the right direction.

[0066] The Y-axis direction is the depth direction of the device and is the direction along the medium conveying direction during recording. The -Y direction is the direction from the front surface of the device to the back surface of the device and is the medium conveying direction during recording and is an example of a first direction. In addition, the +Y direction is the direction from the back surface of the device to the front surface of the device and is an example of a second direction opposite to the first direction. In this embodiment, among the side surfaces constituting the periphery of the printer 1, the side surface in the +Y direction is the front surface of the device and the side surface in the -Y direction is the back surface of the device.

[0067] The Z-axis direction is a direction along the vertical direction and is the height direction of the device. The +Z direction is the vertical upward direction, and the -Z direction is the vertical downward direction.

[0068] It should be noted that, hereinafter, the direction in which the medium is transported may be referred to as "downstream", and the opposite direction may be referred to as "upstream".

[0069] exist Figure 1 In the embodiment, the printer 1 has a housing 30. The housing 30 includes a front surface 30a, a right side surface 30b, a left side surface 30c, an upper surface 30d, and a rear surface 30e.

[0070] The front surface of the medium storage box 2 is exposed on the front surface 30a. The medium storage box 2 is an example of a medium storage unit, and is configured to store the medium before feeding. The medium storage box 2 can be removed from the printer 1 by pulling it out in the +Y direction, and can be installed in the printer 1 by pushing it in the -Y direction. Figure 1 In FIG. 1 , reference numeral Pt denotes a medium accommodated in the medium accommodating box 2 .

[0071] A recessed portion 30f is provided on the upper surface 30d. The bottom surface of the recessed portion 30f constitutes the discharge tray 29. The discharge tray 29 is formed to be inclined upward toward the +Y direction.

[0072] An ejection port 30g is provided inside the recess 30f so as to open toward the +Y direction. The recorded medium is ejected toward the +Y direction from the ejection port 30g and supported by the ejection tray 29 and the upper surface 30d.

[0073] A waste liquid tray 33 as an example of a waste liquid storage unit is provided on the upper surface 30d. The waste liquid tray 33 is a tray for storing waste ink generated by maintenance of the line head 40 described later, and can be removed from the printer 1 by lifting it from the upper surface 30d in the +Z direction, and can be attached to the printer 1 by dropping it in the -Z direction.

[0074] Next, refer to Figure 2 The medium conveyance path of the printer 1 will be described.

[0075] The printer 1 includes a first feeding path R1a, a second feeding path R1b, a reversing path R2, a recording feeding path R3, a guide path R4, and a discharge path R5 as medium feeding paths for conveying the medium. Figure 2 In FIG. 1 , these paths are shown by double-dashed lines.

[0076] The first feed path R1a is a path from the bottom pickup roller 3 to the first pinch roller 9. The second feed path R1b is a path from the upper medium support portion 12 via the feed roller 13 to the first conveying roller pair 15. The reverse path R2 is a path from the first pinch roller 9 to the second pinch roller 10. The recording conveying path R3 is a path from the second pinch roller 10 to the third conveying roller pair 27. The guide path R4 is a path from the third conveying roller pair 27 to the first pinch roller 9 via the fourth conveying roller pair 65. The discharge path R5 is a path from the third conveying roller pair 27 to the discharge port 30g.

[0077] The recording conveying path R3 is a path facing the line head 40, and guides the medium in the -Y direction, which is an example of the first direction. It should be noted that guiding the medium in the -Y direction does not mean that the medium conveying direction is straight along the -Y direction, as long as it includes a -Y direction component.

[0078] In addition, the guide path R4 is a medium conveying path located below the recording conveying path R3, and guides the medium leaving the recording conveying path R3 to the +Y direction as an example of the second direction. It should be noted that guiding the medium to the +Y direction does not mean that the medium conveying direction is straight along the +Y direction, as long as it includes a +Y direction component.

[0079] The reversing path R2 is a medium conveying path connected to the guide path R4 , and reverses the medium and merges with the recording conveying path R3 .

[0080] The discharge path R5 is located downstream of the transport path R3 during recording, and is a path for discharging the recorded medium from the discharge port 30g.

[0081] The printer 1 is described in more detail below. The printer 1 includes the above-mentioned medium storage box 2 at the bottom of the device.

[0082] A pickup roller 3 is provided on the upper portion of the medium accommodating box 2. The pickup roller 3 can move forward and backward relative to the medium Pt accommodated in the medium accommodating box 2, and delivers the medium from the medium accommodating box 2 in the +Y direction by contacting the medium Pt accommodated in the medium accommodating box 2 and rotating.

[0083] A feed roller 5 driven to rotate and a separation roller 6 to which a rotational torque is applied by a torque limiter (not shown) are provided downstream of the pickup roller 3. The medium fed from the medium cassette 2 is separated by being sandwiched between the feed roller 5 and the separation roller 6 and is further conveyed downstream.

[0084] A reversing roller 8 driven to rotate is provided downstream of the feed roller 5 and the separation roller 6. A first clamping roller 9, a second clamping roller 10, and a third clamping roller 11 are provided around the reversing roller 8. Each clamping roller is a roller that can rotate automatically. The medium is clamped by the reversing roller 8 and the first clamping roller 9, and further clamped and conveyed by the reversing roller 8 and the second clamping roller 10. The medium is reversed by the reversing roller 8 and conveyed downstream.

[0085] It should be noted that in the present embodiment, the reversing roller 8 is a large diameter roller whose outer periphery forms the inner side of the reversing path R2, but is not limited to this. It may also be a small diameter roller whose outer and inner sides of the reversing path R2 are formed by a path forming component and the reversing roller 8 is arranged opposite to each clamping roller.

[0086] A first transport roller pair 15 including a first drive roller 16 that is driven to rotate and a first driven roller 17 that is driven to rotate is provided downstream of the reverse roller 8. The first drive roller 16 is one of the transport rollers provided in the transport path R3 during recording and is an example of a first transport roller.

[0087] The medium is transported by the first transport roller pair 15 to a position opposite to the line head 40 .

[0088] It should be noted that the printer 1 can feed the medium from the medium holding box 2, that is, feed the medium using the first feed path R1a, and can also feed the medium from the medium supporting portion 12, that is, feed the medium using the second feed path R1b. The medium supporting portion 12 supports the medium in an inclined posture, and the supported medium is conveyed to the first conveying roller pair 15 by the feed roller 13. Reference numeral 14 is a separation roller to which a rotational torque is applied by a torque limiter (not shown).

[0089] The line head 40 is a liquid ejection head that ejects ink, which is an example of liquid, onto a medium to perform recording, and is an example of a recording unit. The line head 40 is a liquid ejection head that has a plurality of nozzles 44 for ejecting ink arranged so as to cover the entire range in the width direction of the medium. The line head 40 is long in the width direction of the medium, and is configured as a liquid ejection head that can perform recording over the entire width of the medium without moving in the width direction of the medium.

[0090] Reference numeral 42 denotes a head surface that faces the medium. The head surface 42 can also be called a liquid ejection surface or a nozzle surface.

[0091] The printer 1 includes an ink container 47 (see Figure 8 ), the ink ejected from the line head 40 is supplied from the ink containing portion 47 to the line head 40 via an ink tube (not shown).

[0092] A second conveying roller pair 19 including a second driving roller 20 that is driven to rotate and a second driven roller 21 that is driven to rotate is provided downstream of the line head 40. The second driving roller 20 is one of the conveying rollers provided in the conveying path R3 during recording and is an example of a second conveying roller. The recorded medium is conveyed downstream by the second conveying roller pair 19.

[0093] Here, the lower surface of the transport path R3 during recording is formed by the first path forming portion 51. A portion of the upper surface of the transport path R3 during recording, which is upstream of the first transport roller pair 15, is formed by the third path forming portion 53, and the medium is guided to the first transport roller pair 15 by the third path forming portion 53 and the first path forming portion 51. The upper surface of the transport path R3 during recording, which is downstream of the second transport roller pair 19, is formed by the fourth path forming portion 54, and the recorded medium is guided to the third transport roller pair 27 by the fourth path forming portion 54 and the first path forming portion 51.

[0094] It should be noted that the first path forming portion 51 , the third path forming portion 53 , and the fourth path forming portion 54 may be formed of one component or may be formed of a plurality of components.

[0095] A shielding plate 46 is provided at a position facing the line head 40 in the transport path R3 during recording. The shielding plate 46 can be located at a shielding position ( Figure 2 , Figure 4 ) and an open position ( Figure 5 , Figure 6 ). The shield 46 supports the medium when located at the shielding position, thereby defining the gap between the medium and the head surface 42. Hereinafter, the gap between the shield 46 and the head surface 42 may be referred to as a paper pressing gap.

[0096] It should be noted that the line head 40 is provided to be movable in the direction of advancing and retreating relative to the shutter 46, that is, in the direction of adjusting the platen gap. In the present embodiment, the direction of adjusting the platen gap is parallel to the Z-axis direction. Hereinafter, the movement of the line head 40 in the +Z-axis direction may be referred to as "ascending", and the movement of the line head 40 in the -Z direction may be referred to as "descending".

[0097] The cover unit 38 is provided below the shield plate 46. The cover unit 38 includes a cover portion 39 (see Figures 4 to 6 ). The cover unit 39 can be switched between a state of covering the head surface 42 and a state of being separated from the head surface 42. The operation of the shield plate 46 and the cover unit 38 will be described later.

[0098] exist Figure 2 In the figure, a baffle 22 is provided downstream of the transmission path R3 during recording. The baffle 22 is provided so as to be able to swing around a swing shaft 22a by a power source not shown in the figure, such as a power source such as a motor or a solenoid. When the front end of the baffle 22 in the -Y direction drops, the medium transported in the transmission path R3 during recording is sent to the discharge path R5. In addition, when the front end of the baffle 22 in the -Y direction rises, the medium transported in the discharge path R5 in the reverse direction can be sent to the guide path R4. It should be noted that the baffle 22 is not limited to the method of being driven by a power source, and for example, a spring can be used to apply force to maintain the posture of the front end in the -Y direction rising. In this case, the front end of the medium moving downstream from the transmission path R3 during recording pushes the baffle 22 away and enters the discharge path R5.

[0099] In this embodiment, the discharge path R5 is a path for bending the medium with the surface of the medium on which recording is performed as the inner side, reversing the medium, and discharging the medium from the discharge port 30g. It should be noted that, when recording is performed on both sides of the medium, bending with the surface of the medium on which recording is performed as the inner side means bending with the surface of the medium on which recording is performed last as the inner side. In addition, at the same time, the discharge path R5 is also a path for turning the medium in order to feed the medium into the guide path R4.

[0100] The discharge path R5 includes a third conveying roller pair 27 including a rotationally driven third driving roller 27a and a rotationally driven third driven roller 27b. The third driving roller 27a is one of the discharge rollers provided in the discharge path R5 and is an example of a first discharge roller.

[0101] In addition, in the discharge path R5, a fifth conveying roller pair 28 is provided downstream of the third conveying roller pair 27. The fifth conveying roller pair 28 includes a fifth driving roller 28a that is driven to rotate and a fifth driven roller 28b that is driven to rotate. The fifth driving roller 28a is one of the discharge rollers provided in the discharge path R5 and is an example of a second discharge roller.

[0102] When the third conveying roller pair 27 and the fifth conveying roller pair 28 rotate forward, the medium is discharged from the discharge port 30g. In addition, after the rear end of the medium passes through the third conveying roller pair 27, when the third conveying roller pair 27 and the fifth conveying roller pair 28 rotate in the reverse direction with the front end of the baffle 22 in the -Y direction raised, the end of the medium that was previously the rear end becomes the front end and is fed into the guide path R4.

[0103] The guide path R4 includes a fourth transport roller pair 65 including a fourth drive roller 66 that is driven to rotate and a fourth driven roller 67 that is driven to rotate. The fourth drive roller 66 is an example of a guide roller provided in the guide path R4.

[0104] The medium fed into the guide path R4 is guided by the fourth conveying roller pair 65 to between the reversing roller 8 and the third pinch roller 11 , and fed into the reversing path R2 by the reversing roller 8 and the third pinch roller 11 .

[0105] Reference numeral 52 denotes a second path forming portion that forms the upper surface of the guide path R4. In addition, reference numeral 55 denotes a fifth path forming portion that forms the lower surface of the guide path R4.

[0106] The second path forming portion 52 faces the baffle 22 at its end in the −Y direction, tilts downward from the end in the −Y direction toward the +Y direction, extends horizontally toward the +Y direction, and then tilts upward, facing the reversing roller 8 at its end in the +Y direction.

[0107] The fifth path forming portion 55 has its end in the -Y direction facing the third driving roller 27 a , is inclined downward from the end in the -Y direction toward the +Y direction, then extends horizontally toward the +Y direction, and is inclined upward, with its end in the +Y direction facing the third clamping roller 11 .

[0108] It should be noted that the second path forming portion 52 and the fifth path forming portion 55 may be formed of one component or may be formed of a plurality of components.

[0109] Next, refer to Figure 3 A control system including a motor included in the printer 1 will be described.

[0110] The control unit 80 includes a CPU and nonvolatile memory (not shown), and performs various controls on the printer 1 by executing various control programs stored in the nonvolatile memory. The control unit 80 controls a plurality of motors included in the printer 1 .

[0111] The reversing motor 81 controlled by the control unit 80 is a power source for the pickup roller 3, the feed roller 5, the reversing roller 8, and the feed roller 13. The reversing motor 81 transmits power to the pickup roller 3 through the power transmission unit m1a. The power transmission unit m1a and other power transmission units described later can be composed of known power transmission units such as gears and drive belts unless otherwise specified.

[0112] The reversing motor 81 transmits power to the feed roller 5 via the power transmission part m1b. The reversing motor 81 transmits power to the reversing roller 8 via the power transmission part m2. The reversing motor 81 transmits power to the feed roller 13 via the power transmission part m3.

[0113] The conveying motor 82 controlled by the control unit 80 is a power source for the first driving roller 16 , the second driving roller 20 , and the fourth driving roller 66 .

[0114] The conveying motor 82 transmits power to the first driving roller 16 via the power transmission part m4. The conveying motor 82 transmits power to the second driving roller 20 via the power transmission part m5. The conveying motor 82 transmits power to the fourth driving roller 66 via the power transmission part m6.

[0115] The discharge motor 83 controlled by the control unit 80 is a power source for the third driving roller 27 a and the fifth driving roller 28 a .

[0116] The discharge motor 83 transmits power to the third drive roller 27a via the power transmission unit m7. The discharge motor 83 transmits power to the fifth drive roller 28a via the power transmission unit m8.

[0117] The pump motor 84 controlled by the control unit 80 drives the pump unit 32. The pump unit 32 is connected to the cover unit 38 via the cover portion 39 (see Figures 4 to 6 ) to transport ink to the waste liquid tray 33. Therefore, the cover 39 and the pump unit 32 are connected via an ink tube not shown, and the pump unit 32 and the waste liquid tray 33 are connected via an ink tube not shown.

[0118] The pump motor 84 transmits power to the pump unit 32 via the power transmission portion m9.

[0119] The head drive motor 85 controlled by the control unit 80 is a power source for raising and lowering the line head 40 in the direction of adjusting the paper pressing gap. The head drive motor 85 raises and lowers the line head 40 through the power transmission unit m10. The power transmission unit m10 can be composed of a rack and pinion transmission mechanism including a rack (not shown) provided on the line head 40 and a pinion (not shown) meshing with the rack, and the head drive motor 85 rotates the pinion.

[0120] It should be noted that a guide frame 31 is arranged in the +Y direction relative to the line head 40 (see Figure 2 ), the line head 40 is guided by the guide frame 31 in the Z-axis direction.

[0121] The shutter drive motor 86 controlled by the control unit 80 is a power source for moving the shutter 46 in the Y-axis direction. The shutter drive motor 86 moves the shutter 46 through the power transmission unit m11. The power transmission unit m11 can be composed of a rack and pinion transmission mechanism including a rack (not shown) provided on the shutter 46 and a pinion (not shown) meshing with the rack, and the shutter drive motor 86 rotates the pinion.

[0122] It should be noted that the power source for the shutter 46 is not limited to the dedicated shutter drive motor 86 , and power may be obtained from other motors, such as the transmission motor 82 .

[0123] The cover drive motor 87 controlled by the control unit 80 is a power source for raising and lowering the cover unit 38 along the Z-axis direction. The cover drive motor 87 raises and lowers the cover unit 38 through the power transmission unit m12. The power transmission unit m12 can be composed of a rack and pinion transmission mechanism including a rack (not shown) provided on the cover unit 38 and a pinion (not shown) meshing with the rack, and the cover drive motor 87 rotates the pinion.

[0124] It should be noted that the power source of the cover unit 38 is not limited to the dedicated cover drive motor 87 , and power may be obtained from other motors, such as the head drive motor 85 .

[0125] The wiper drive motor 88 controlled by the control unit 80 is a power source for moving the wiper unit 36 ​​along the X-axis direction. Figure 8 As shown in the figure, the wiper unit 36 ​​includes a wiper 37 formed of an elastic material such as rubber. The wiper unit 36 ​​can move in the X-axis direction by the power of the wiper drive motor 88, and at this time, the wiper 37 wipes the head surface 42 of the line head 40. The wiper unit 36 ​​takes the -X direction end as the initial position. Reference numeral 36-1 shows the wiper unit 36 ​​moving from the initial position to the +X direction end, and reference numeral 37-1 shows the wiper 37 at this time.

[0126] It should be noted that a circuit board 90 (see also FIG. 1 ) is provided at the initial position of the wiper unit 36. Figure 1). The circuit substrate 90 constitutes the control unit 80 and is equipped with electronic components such as an integrated circuit, a capacitor, a diode, and a transistor (not shown). The circuit substrate 90 is provided with an opening 90a. When the wiper unit 36 ​​is located at the initial position, the wiper unit 36 ​​is located inside the opening 90a, and the wiper unit 36 ​​and the circuit substrate 90 are configured so that they do not interfere with each other. Thus, by such a configuration, the X-axis dimension of the printer 1 can be suppressed.

[0127] return Figure 3 The wiper drive motor 88 moves the wiper unit 36 ​​through the power transmission part m13. The power transmission part m13 is, for example, configured to include a driving pulley (not shown) provided at one end in the X-axis direction, a driven pulley (not shown) provided at the other end, and an endless belt (not shown) wound around the driving pulley and the driven pulley. The wiper unit 36 ​​is fixed to a part of the endless belt. The wiper drive motor 88 rotates the driving pulley.

[0128] Among the above motors, the reversing motor 81 , the conveying motor 82 , and the ejecting motor 83 are motors involved in conveying the medium and have the longest operating time among the multiple motors included in the printer 1 , and therefore generate the most heat.

[0129] Next, refer to Figure 4 , Figure 5 , Figure 6 The operation of the shutter 46 and the cover unit 38 will be described.

[0130] In the present embodiment, the first path forming portion 51 is entirely formed of one member and has a recessed portion 51d at a position facing the head surface 42 of the line head 40. The cover unit 38 including the cover portion 39 is disposed in the recessed portion 51d.

[0131] The recessed portion 51d has a guide hole 51a extending in the Y-axis direction on the side wall of the -X direction end and the side wall of the +X direction end. The shielding plate 46 has bosses 46a protruding in the -X direction at intervals along the Y-axis direction at the -X direction end, and bosses 46a protruding in the +X direction at intervals along the Y-axis direction at the +X direction end. Then, the shielding plate 46 is guided in the Y-axis direction by the first path forming portion 51 by allowing the bosses 46a to enter the guide hole 51a.

[0132] Figure 4 The shutter 46 is in the shielding position and the cover unit 38 is in the lowered position. When recording on the medium, the control unit 80 keeps the shutter 46 and the cover unit 38 in the lowered position. Figure 4 status.

[0133] When the head surface 42 is covered by the cover portion 39 from this state, as shown in FIG. Figure 4 to Figure 5 As shown by the change of , the control unit 80 moves the shutter 46 from the shielding position to the open position. Figure 5 to Figure 6 As shown in the change of , the cover unit 38 is raised.

[0134] When the line head 40 is to be maintained, the control unit 80 sets the shutter 46 and the cover unit 38 to the state in which the power of the device is turned off or in the recording standby state when the power is turned on. Figure 6 status.

[0135] It should be noted that in the present embodiment, the cover unit 38 is raised and lowered so that the cover portion 39 covers the head surface 42. However, the cover unit 38 may be fixedly arranged, and the line head 40 may be lowered from the recording position so that the cover portion 39 covers the head surface 42. Alternatively, the cover portion 39 may be covered with the head surface 42 by both the lowering of the line head 40 and the raising of the cover unit 38.

[0136] Next, refer to Figure 2 , Figure 7 , Fig. 9 The arrangement of the reversing motor 81 , the conveying motor 82 , and the discharging motor 83 will be described.

[0137] First, the configuration of the reversing motor 81 will be described. Figure 2 As shown, the reversing motor 81 is disposed between the first path forming portion 51 and the second path forming portion 52. The position between the first path forming portion 51 and the second path forming portion 52 can also be referred to as the position between the recording conveying path R3 and the guide path R4.

[0138] Thus, the first path forming portion 51 is located between the reversing motor 81 and the line head 40, and the heat generated by the reversing motor 81 can be prevented from being radiated to the line head 40, thereby preventing the heat generated by the reversing motor 81 from adversely affecting the line head 40. This is referred to as the first effect of the reversing motor 81.

[0139] In addition, the reversing motor 81 is disposed at a position sandwiched between the first path forming portion 51 and the second path forming portion 52, so that the reversing motor 81 is covered by the first path forming portion 51. Therefore, the operating sound of the reversing motor 81 is not easy to leak from the upper surface of the device. Hereinafter, this is referred to as the second effect of the reversing motor 81.

[0140] Furthermore, the heat generated by the reversing motor 81 acts on the guide path R4 , thereby increasing the temperature in the guide path R4 and accelerating the drying of the medium to which the ink is ejected. This is hereinafter referred to as the third effect of the reversing motor 81 .

[0141] Any one, two, or all of the above-mentioned first, second, and third effects of the reversing motor 81 can be obtained. In addition, by further arranging the reversing motor 81 at a position sandwiched between the first path forming portion 51 and the second path forming portion 52, the space between the conveying path R3 and the guide path R4 during recording can be effectively utilized, and the device can be miniaturized.

[0142] Furthermore, in the present embodiment, the reversing motor 81 drives the pickup roller 3 and the feed roller 13 in addition to the reversing roller 8. In this case, the reversing motor 81 is likely to generate heat further, but the heat generated by the reversing motor 81 can be suppressed from adversely affecting the line head 40 through the first effect.

[0143] It should be noted that, in the present embodiment, the reverse rotation motor 81 further drives the feed roller 5 .

[0144] In addition, in this embodiment, the reversing roller 8, the pickup roller 3, and the feed roller 13 are located in the +Y direction relative to the line head 40, and the reversing motor 81 is located in the +Y direction relative to the line head 40. As a result, the distance between the reversing motor 81 and the reversing roller 8, the distance between the reversing motor 81 and the pickup roller 3, and the distance between the reversing motor 81 and the feed roller 13 can be suppressed. As a result, the power transmission part m2 (refer to Figure 3 ), a power transmission part m1a (refer to Figure 3 ), a power transmission unit m3 (refer to Figure 3 ) can help to miniaturize the entire device.

[0145] It should be noted that in this embodiment, the feed roller 5 is also located in the +Y direction relative to the line head 40. Therefore, the distance between the reversing motor 81 and the feed roller 5 can be reduced, and as a result, the power transmission part m1b (see Figure 3 ) on a larger scale.

[0146] In addition, in this embodiment, regarding the reversing motor 81, as shown in FIG. Fig. 9 As shown, when viewed from the Z-axis direction, that is, the normal direction of the surface of the medium transported in the transport path R3 during recording, at least the motor body 81a does not protrude from the first path forming portion 51 in the X-axis direction, that is, the width direction. Fig. 9In the figure, reference numeral X1 is the range occupied by the first path forming portion 51 in the width direction, and reference numeral X2 is the range occupied by the motor main body 81a. With such a configuration, the device size in the width direction can be effectively suppressed. It should be noted that reference numeral 81b is the motor shaft.

[0147] Furthermore, since the motor body 81 a is entirely covered by the first path forming portion 51 , the first effect or the second effect described above can be effectively obtained with respect to the reversing motor 81 .

[0148] It should be noted that, in the present embodiment, the reversing motor 81 is in a state where the motor body 81a is entirely covered by the first path forming portion 51, but a portion of the motor body 81a may be covered by the first path forming portion 51. In addition, in the present embodiment, a portion of the motor shaft 81b is covered by the first path forming portion 51, but the motor shaft 81b may be entirely covered by the first path forming portion 51.

[0149] It should be noted that the reversing motor 81 may be configured to be in contact with the second path forming portion 52. With such a configuration, the heat generated by the reversing motor 81 can be effectively transferred to the second path forming portion 52, and the drying of the medium transported in the guide path R4 can be further promoted. It should be noted that in this case, by forming the second path forming portion 52 with a material having good thermal conductivity, such as a metal material, the heat generated by the reversing motor 81 can be more effectively transferred to the second path forming portion 52. Furthermore, by forming the second path forming portion 52 with a material having good thermal conductivity, such as a metal material, and forming the first path forming portion 51 with a material having low thermal conductivity, such as a resin material, the drying of the medium transported in the guide path R4 can be further promoted, while the heat generated by the reversing motor 81 can be effectively suppressed from adversely affecting the line head 40.

[0150] Next, the configuration of the discharge motor 83 will be described. Figure 2 As shown, the discharge motor 83 is disposed at a position sandwiched between the first path forming portion 51 and the second path forming portion 52. Thus, the first path forming portion 51 is located between the discharge motor 83 and the line head 40, and the heat generated by the discharge motor 83 can be prevented from being transmitted to the line head 40 by radiation, and the heat generated by the discharge motor 83 can be prevented from causing adverse effects on the line head 40. This is hereinafter referred to as the first effect of the discharge motor 83.

[0151] In addition, the discharge motor 83 is disposed at a position sandwiched between the first path forming portion 51 and the second path forming portion 52, so that the discharge motor 83 is covered by the first path forming portion 51. Therefore, the operating sound of the discharge motor 83 is not easy to leak from the upper surface of the device. Hereinafter, this is referred to as the second effect of the discharge motor 83.

[0152] Furthermore, the heat generated by the discharge motor 83 acts on the guide path R4 , thereby increasing the temperature in the guide path R4 and accelerating the drying of the medium to which the ink is ejected. This is hereinafter referred to as the third effect of the discharge motor 83 .

[0153] Any one, two, or all of the above-mentioned first, second, and third effects of the discharge motor 83 can be obtained. In addition, by further arranging the discharge motor 83 at a position sandwiched between the first path forming portion 51 and the second path forming portion 52, the space between the conveying path R3 and the guide path R4 during recording can be effectively utilized, and the device can be miniaturized.

[0154] In addition, in the present embodiment, the discharge path R5 is formed into a shape in which the surface of the medium on which recording has just been performed is bent inward and reversed, and a plurality of discharge rollers are provided in the discharge path R5, the plurality of discharge rollers including a third drive roller 27a serving as a first discharge roller and a fifth drive roller 28a serving as a second discharge roller located downstream of the third drive roller 27a.

[0155] In this way, when the discharge motor 83 drives a plurality of driving objects, the discharge motor 83 is likely to generate further heat. However, due to the first effect of the discharge motor 83 described above, the heat generated by the discharge motor 83 can be prevented from adversely affecting the line head 40.

[0156] In addition, the third drive roller 27a and the fifth drive roller 28a are located in the -Y direction relative to the line head 40, and the discharge motor 83 is located in the -Y direction relative to the line head 40. As a result, the distance between the discharge motor 83 and the third drive roller 27a and the distance between the discharge motor 83 and the fifth drive roller 28a can be suppressed. As a result, the power transmission part m7 (refer to Figure 3 ), a power transmission unit m8 (refer to Figure 3 ) can help to miniaturize the entire device.

[0157] However, the discharge motor 83 may be located in the +Y direction with respect to the line head 40 .

[0158] In addition, in this embodiment, regarding the discharge motor 83, as shown in FIG. Fig. 9 As shown, when viewed from the Z-axis direction, that is, the normal direction of the surface of the medium transported in the transport path R3 during recording, at least the motor body 83a does not protrude from the first path forming portion 51 in the X-axis direction, that is, the width direction. Fig. 9 In the figure, reference numeral X3 is the range occupied by the motor main body 83a. With such a configuration, the device size in the width direction can be effectively suppressed. It should be noted that reference numeral 83b is the motor shaft.

[0159] Furthermore, since the motor body 83 a is entirely covered by the first path forming portion 51 , the first effect or the second effect of the discharge motor 83 can be effectively obtained.

[0160] It should be noted that, in the present embodiment, the discharge motor 83 is in a state where the motor body 83a is entirely covered by the first path forming portion 51, but a portion of the motor body 83a may be covered by the first path forming portion 51. In addition, in the present embodiment, a portion of the motor shaft 83b is covered by the first path forming portion 51, but the motor shaft 83b may be entirely covered by the first path forming portion 51.

[0161] It should be noted that the discharge motor 83 may be configured to be in contact with the second path forming portion 52. With such a configuration, the heat generated by the discharge motor 83 can be effectively transferred to the second path forming portion 52, and the drying of the medium transported in the guide path R4 can be further promoted. It should be noted that in this case, by forming the second path forming portion 52 with a material having good thermal conductivity, such as a metal material, the heat generated by the discharge motor 83 can be more effectively transferred to the second path forming portion 52. Furthermore, by forming the second path forming portion 52 with a material having good thermal conductivity, such as a metal material, and forming the first path forming portion 51 with a material having low thermal conductivity, such as a resin material, the drying of the medium transported in the guide path R4 can be further promoted, while the heat generated by the discharge motor 83 can be effectively suppressed from adversely affecting the line head 40.

[0162] Next, the configuration of the transmission motor 82 will be described. Figure 7 As shown, the conveying motor 82 is disposed at a position sandwiched between the first path forming portion 51 and the second path forming portion 52. Thus, the first path forming portion 51 is located between the conveying motor 82 and the line head 40, and the heat generated by the conveying motor 82 can be prevented from being transmitted to the line head 40 by radiation, and the heat generated by the conveying motor 82 can be prevented from causing adverse effects on the line head 40. This is hereinafter referred to as the first effect of the conveying motor 82.

[0163] In addition, the transmission motor 82 is disposed at a position sandwiched between the first path forming portion 51 and the second path forming portion 52, so that the transmission motor 82 is covered by the first path forming portion 51. Therefore, the operating sound of the transmission motor 82 is not easily leaked from the upper surface of the device. This is hereinafter referred to as the second effect of the transmission motor 82.

[0164] Furthermore, the heat generated by the transport motor 82 acts on the guide path R4 , so that the temperature in the guide path R4 can be increased, and the drying of the medium to which the ink is ejected can be promoted. This is hereinafter referred to as the third effect of the transport motor 82 .

[0165] Any one, two, or all of the above-mentioned first, second, and third effects of the conveying motor 82 can be obtained. In addition, by further arranging the conveying motor 82 at a position sandwiched between the first path forming portion 51 and the second path forming portion 52, the space between the conveying path R3 and the guide path R4 during recording can be effectively utilized, and the device can be miniaturized.

[0166] In addition, a plurality of conveying rollers are provided in the conveying path R3 during recording, and the plurality of conveying rollers include a first driving roller 16 as a first conveying roller located upstream of the line head 40 and a second driving roller 20 as a second conveying roller located downstream of the line head 40. Furthermore, the conveying motor 82 drives a fourth driving roller 66 as a guide roller provided in the guide path R4.

[0167] When the transport motor 82 drives a plurality of drive objects, the transport motor 82 is likely to generate further heat. However, due to the first effect of the transport motor 82 , it is possible to suppress the heat generated by the transport motor 82 from adversely affecting the line head 40 .

[0168] In addition, in the present embodiment, the conveying motor 82 is located in the −Y direction with respect to the line head 40 . However, the conveying motor 82 may be located in the +Y direction with respect to the line head 40 .

[0169] In this embodiment, regarding the transmission motor 82, as shown in FIG. Fig. 9 As shown, when viewed from the Z-axis direction, that is, the normal direction of the surface of the medium transported in the transport path R3 during recording, the motor body 82a slightly protrudes from the first path forming portion 51 in the X-axis direction, that is, the width direction. Fig. 9 In the figure, reference numeral X4 is the range occupied by the motor main body 82a. In addition, reference numeral 82b is the motor shaft.

[0170] However, at least the motor body 82a may be arranged so as not to protrude in the X-axis direction, that is, the width direction, from the first path forming portion 51. With such a configuration, the device size in the width direction can be effectively suppressed.

[0171] Furthermore, since a part or all of the motor body 82 a is covered by the first path forming portion 51 , the first effect or the second effect of the conveying motor 82 can be effectively obtained.

[0172] It should be noted that in the present embodiment, the motor shaft 82b protrudes entirely from the first path forming portion 51 in the X-axis direction, i.e., the width direction; however, a portion of the motor shaft 82b may be covered by the first path forming portion 51, or the motor shaft 82b may be entirely covered by the first path forming portion 51.

[0173] It should be noted that the conveying motor 82 may be configured to be in contact with the second path forming portion 52. With such a configuration, the heat generated by the conveying motor 82 can be effectively transferred to the second path forming portion 52, and the drying of the medium conveyed in the guide path R4 can be further promoted. It should be noted that in this case, by forming the second path forming portion 52 with a material having good thermal conductivity, such as a metal material, the heat generated by the conveying motor 82 can be more effectively transferred to the second path forming portion 52. Furthermore, by forming the second path forming portion 52 with a material having good thermal conductivity, such as a metal material, and forming the first path forming portion 51 with a material having low thermal conductivity, such as a resin material, the drying of the medium conveyed in the guide path R4 can be further promoted, while the heat generated in the conveying motor 82 can be effectively suppressed from having an adverse effect on the line head 40.

[0174] Next, the positional relationship among the reversing motor 81 , the conveying motor 82 , and the ejecting motor 83 will be described.

[0175] The reversing motor 81 is located in the +Y direction with respect to the line head 40 , and the discharging motor 83 is located in the −Y direction with respect to the line head 40 .

[0176] With this arrangement, the discharge motor 83 and the reversing motor 81 are arranged across the line head 40, that is, the discharge motor 83 and the reversing motor 81 are separated from each other. This effectively prevents the heat generated by the discharge motor 83 and the reversing motor 81 from adversely affecting the line head 40.

[0177] Furthermore, the reversing motor 81 is located in the +Y direction with respect to the line head 40 , and the conveying motor 82 is located in the −Y direction with respect to the line head 40 .

[0178] With this arrangement, the conveying motor 82 and the reversing motor 81 are arranged across the line head 40, that is, the conveying motor 82 and the reversing motor 81 are separated from each other. This effectively prevents the heat generated by the conveying motor 82 and the reversing motor 81 from adversely affecting the line head 40.

[0179] The discharge motor 83 is disposed at one end portion (+X direction) of the first path forming portion 51 in the width direction, and the conveyance motor 82 is disposed at the other end portion (−X direction) of the first path forming portion 51 in the width direction.

[0180] Thus, the reversing motor 81 , the ejecting motor 83 , and the conveying motor 82 are separated from each other, and thus the heat generated by the reversing motor 81 , the ejecting motor 83 , and the conveying motor 82 can be effectively prevented from adversely affecting the line head 40 .

[0181] It should be noted that in this embodiment, if Figure 2 As shown, the pump motor 84 and the pump unit 32 are arranged at the upper part of the recording conveying path R3 and directly below the waste liquid tray 33, but the pump motor 84 and the pump unit 32 can also be arranged at a position sandwiched between the first path forming portion 51 and the second path forming portion 52.

[0182] exist Fig.10 In the printer 1A shown in FIG. 1 , the pump motor 84 and the pump unit 32 are arranged at a position sandwiched between the first path forming portion 51 and the second path forming portion 52. The pump motor 84 and the pump unit 32 are arranged in the +Y direction relative to the line head 40. Fig.11 As shown, the pair of the pump motor 84 and the pump unit 32 is arranged at a position separated from the reversing motor 81 in the width direction.

[0183] exist Fig.11 In the figure, reference numeral X6 is an area occupied by the pump unit 32 in the width direction, and reference numeral X7 is an area occupied by the pump motor 84.

[0184] In summary, the first path forming portion 51 is located between the pump motor 84 and the line head 40, which can prevent the heat generated by the pump motor 84 from being transferred to the line head 40 through radiation, and can prevent the heat generated by the pump motor 84 from causing adverse effects on the line head 40. This is referred to as the first effect of the pump motor 84.

[0185] In addition, the pump motor 84 is disposed at a position sandwiched between the first path forming portion 51 and the second path forming portion 52, so that the pump motor 84 is covered by the first path forming portion 51. Therefore, the operating sound of the pump motor 84 is not easy to leak from the upper surface of the device. Hereinafter, this is referred to as the second effect of the pump motor 84.

[0186] Furthermore, the heat generated by the pump motor 84 acts on the guide path R4 , so that the temperature in the guide path R4 can be increased, and the drying of the medium to which the ink is ejected can be promoted. This is hereinafter referred to as the third effect of the pump motor 84 .

[0187] It is possible to obtain at least any one of the first, second, and third effects of the pump motor 84. Furthermore, by arranging the pump motor 84 at a position sandwiched between the first path forming portion 51 and the second path forming portion 52, the space between the conveying path R3 and the guide path R4 during recording can be effectively utilized, and the device can be miniaturized.

[0188] Moreover, since the reversing motor 81, the discharge motor 83, the conveying motor 82, and the pump motor 84 are configured to be separated from each other, the heat generated by the reversing motor 81, the discharge motor 83, the conveying motor 82, and the pump motor 84 can be effectively prevented from having an adverse effect on the line head 40.

[0189] Next, the first path forming portion 51 will be further described.

[0190] In the present embodiment, the first path forming portion 51 is formed of a member formed in a shape extending in the -Y direction from a position opposite to the line head 40 and in the +Y direction from a position opposite to the line head 40. Thus, it is possible to appropriately suppress the heat generated by each motor disposed on the lower side of the first path forming portion 51 from being radiated to the line head 40. In addition, it is also possible to appropriately suppress the noise generated by the reversing motor 81 from leaking from the upper surface of the device.

[0191] In addition, in the first path forming portion 51 , an opening may be formed instead of the recessed portion 51 d for arranging the cover unit 38 . Fig.12 The first path forming portion 51A shown has an opening 51e at a position facing the line head 40. The cover unit 38 is arranged inside the opening 51e.

[0192] In such a configuration, airflow including heat generated by the motors disposed below the first path forming portion 51A is likely to flow toward the head surface 42 through the opening 51 e , which may adversely affect ink ejection accuracy of the line head 40 .

[0193] Furthermore, there is also a concern that the operating sounds generated by the above-mentioned motors are likely to leak upward from the device through the opening 51e.

[0194] However, when recording on the medium, that is, when heat is generated by the reversing motor 81, the conveying motor 82, and the discharge motor 83, the opening 51e is blocked by the shielding plate 46. Thus, it is possible to prevent the airflow including the heat generated by the reversing motor 81, the conveying motor 82, and the discharge motor 83 from passing through the opening 51e to the head surface 42, and to prevent the ink ejection accuracy from being reduced.

[0195] Furthermore, it is also possible to suppress the operating sound generated by each of the motors from leaking upwardly toward the device through the opening.

[0196] Next, the arrangement of the waste liquid tray 33 , the pump motor 84 , and the pump unit 32 will be described.

[0197] like Figure 2 , Figure 7 As shown, a guide frame 31 for guiding the line head 40 in the Z-axis direction is provided in the +Y direction with respect to the line head 40. The guide frame 31 is a frame having a surface parallel to the XZ plane, and is formed of a metal material.

[0198] Furthermore, the waste liquid tray 33 , the pump motor 84 , and the pump unit 32 are arranged in the +Y direction with respect to the guide frame 31 .

[0199] In addition, the pump motor 84 is disposed below the waste liquid tray 33. Thus, the heat generated by the pump motor 84 is transferred to the waste liquid tray 33 by radiation and convection, and the drying of the waste liquid tray 33 can be promoted without using a separate component such as a heat sink, thereby suppressing the cost increase of the device. By promoting the drying of the waste liquid tray 33, the amount of waste liquid that can be stored in the waste liquid tray 33 can be increased.

[0200] In the present embodiment, the pump motor 84 is disposed directly below the waste liquid tray 33 at a position facing the bottom surface of the waste liquid tray 33 .

[0201] exist Fig. 9 In the figure, reference numeral X5 is the area occupied by the waste liquid tray 33 in the width direction, and reference numeral X7 is the area occupied by the pump motor 84 in the width direction. As shown in the figure, when viewed from the Z-axis direction, the pump motor 84 does not protrude from the waste liquid tray 33 in the width direction. Moreover, when viewed from the Z-axis direction, the pump motor 84 does not protrude from the waste liquid tray 33 in the Y-axis direction.

[0202] However, a portion of the pump motor 84 may protrude from the waste liquid tray 33 in the width direction, or may protrude in the Y-axis direction.

[0203] In addition, the pump unit 32 is arranged side by side with the pump motor 84 below the waste liquid tray 33. Thus, the power transmission unit m9 (see Figure 3 ) miniaturization.

[0204] exist Fig. 9 In the figure, reference numeral X6 is the area occupied by the pump unit 32 in the width direction. As shown in the figure, when viewed from the Z-axis direction, the pump unit 32 does not protrude from the waste liquid tray 33 in the width direction. Moreover, when viewed from the Z-axis direction, the pump unit 32 does not protrude from the waste liquid tray 33 in the Y-axis direction.

[0205] However, a part of the pump unit 32 may protrude from the waste liquid tray 33 in the width direction, or in the Y-axis direction. Furthermore, when viewed from the Z-axis direction, the waste liquid tray 33 and the pump unit 32 may not overlap.

[0206] Furthermore, the guide frame 31 separates the pump motor 84 from the line head 40 . This can prevent the heat generated by the pump motor 84 from adversely affecting the line head 40 .

[0207] In addition, if Figure 1 , Figure 8 As shown in FIG. 1 , a circuit board 90 is provided on the side of the waste liquid tray 33. The circuit board 90 is a heat source, and the heat generated by the circuit board 90 is transmitted to the waste liquid tray 33 by radiation and convection. Therefore, the drying inside the waste liquid tray 33 can be further promoted without using another component such as a heat sink.

[0208] In addition, a power supply unit 91 as a power supply source of the device is provided at a position facing the circuit board 90 at the lower part of the device. The power supply unit 91 is also a heat source, and the heat generated by the power supply unit 91 is transferred to the waste liquid tray 33 by convection. Thus, the drying of the waste liquid tray 33 can be further promoted.

[0209] Need to explain, such as Figure 8 As shown, the circuit substrate 90 and the power supply unit 91 are arranged at the end in the -X direction in the device width direction, and the ink container 47 is arranged at the end in the +X direction in the device width direction. That is, the ink container 47 is arranged at a position separated from the circuit substrate 90 and the power supply unit 91 which are heat sources that generate significant heat.

[0210] Here, if the ink ejected from the line head 40 is heated, the viscosity of the ink may deviate from the viscosity range suitable for ejection, which may cause ejection failure, etc. However, as described above, since the ink container 47 is arranged at a position separated from the circuit substrate 90 and the power supply unit 91, the occurrence of the above-mentioned ejection failure, etc., can be suppressed.

[0211] It should be noted that the pump motor 84 may also be in contact with the lower surface of the waste liquid tray 33. Thus, the heat generated by the pump motor 84 is transferred to the waste liquid tray 33 by conduction in addition to radiation and convection, which can further promote drying in the waste liquid tray 33.

[0212] Next, other features of the printer 1 will be described.

[0213] exist Fig. 9 In the embodiment, the reversing motor 81 and the discharging motor 83 are located at the end of the +X direction relative to the first path forming portion 51 in the width direction. However, one of the reversing motor 81 and the discharging motor 83 may be located at the end of the +X direction relative to the first path forming portion 51, and the other may be located at the end of the -X direction relative to the first path forming portion 51.

[0214] Furthermore, the reversing motor 81 and the discharging motor 83 overlap in the width direction.

[0215] It should be noted that in this specification, when it is said that the first component and the second component overlap in a prescribed direction, it means that part or all of the first component and part or all of the second component are located at the same position in the prescribed direction. In addition, in order to avoid making the figure complicated, the illustration of the range in which the first component and the second component overlap in the prescribed direction is omitted.

[0216] The reverse motor 81 and the feed roller 13 overlap in the Y-axis direction (see Figure 2 , Fig. 9 ).

[0217] The reversing motor 81 and the pickup roller 3 overlap in the Z-axis direction (see Figure 2 ).

[0218] The reversing motor 81 and the circuit board 90 overlap in the Z-axis direction (see Figure 8 ).

[0219] The reversing motor 81 and the medium accommodating box 2 overlap in the Y-axis direction (see Figure 2 ), and then overlap in the width direction (refer to Figure 8 ).

[0220] The discharge motor 83 and the pickup roller 3 overlap in the Z-axis direction (see Figure 2 ).

[0221] The discharge motor 83 and the circuit board 90 overlap in the Z-axis direction (see Figure 8 ).

[0222] The discharge motor 83 and the medium accommodating box 2 overlap in the Y-axis direction (see Figure 2 ), and then overlap in the width direction (refer to Figure 8 ).

[0223] The conveying motor 82 and the pickup roller 3 overlap in the Z-axis direction (see Figure 7 ).

[0224] The conveying motor 82 and the circuit board 90 overlap in the Z-axis direction (see Figure 8 ).

[0225] The conveying motor 82 and the medium accommodating box 2 overlap in the Y-axis direction (see Figure 7 ), and then overlap in the width direction (refer to Figure 8 ).

[0226] The pump motor 84 and the first path forming portion 51 overlap in the width direction and in the Y-axis direction (see Fig. 9 ).

[0227] The pump motor 84 and the reversing motor 81 overlap in the width direction and in the Y-axis direction (see Fig. 9 ).

[0228] The pump motor 84 and the feed roller 13 overlap in the Y-axis direction (see Figure 2 , Figure 7 ).

[0229] The pump motor 84 and the circuit board 90 overlap in the Z-axis direction (see Figure 8 ).

[0230] The pump motor 84 and the medium accommodating box 2 overlap in the Y-axis direction (see Figure 2 , Figure 7 ), and then overlap in the width direction (refer to Figure 8 ).

[0231] It should be noted that, in this embodiment, the pump motor 84 and the reverse roller 8 do not overlap in the Z-axis direction (see Figure 2 , Figure 7 ), however, the pump motor 84 and the reversing roller 8 may overlap in the Z-axis direction.

[0232] The waste liquid tray 33 and the feed roller 13 overlap in the Y-axis direction (see Figure 2 , Figure 7 , Fig. 9 ). In addition, the feed roller 13 is located below the waste liquid tray 33. It should be noted that the feed roller 13 is located at the center position in the width direction (refer to Fig. 9 ).

[0233] The waste liquid tray 33 is disposed on the upper surface 30d of the housing 30, that is, on the horizontal surface of the upper surface of the printer 1 (see Figure 1 , Figure 2 , Figure 7 ).

[0234] The waste liquid tray 33 is located in the +Y direction with respect to the line head 40 .

[0235] The waste liquid tray 33 and the circuit board 90 overlap in the Z-axis direction (see Figure 8 ).

[0236] The waste liquid tray 33 and the medium storage box 2 overlap in the Y-axis direction (see Figure 7 ), and then overlap in the width direction (refer to Figure 8 ).

[0237] The present invention is not limited to the above-described embodiments and modifications, and various modifications can be made within the scope of the invention described in the claims, and it goes without saying that such modifications are also included in the scope of the present invention.

Claims

1. A recording device, characterized in that: have: a recording unit for recording the medium transported in the first direction; The transport path during recording is a medium transport path opposite to the recording portion; a guide path, which is a medium conveying path located below the conveying path during recording, and guides the medium leaving the conveying path during recording in a second direction opposite to the first direction; a discharge path, which is a medium conveying path located downstream of the recording conveying path and is used to discharge the recorded medium; a discharge roller, disposed in the discharge path, and conveying the medium toward a downstream of the discharge path; A discharge motor driving the discharge roller; a first path forming portion, forming a lower surface of the conveying path during recording; as well as a second path forming portion forming an upper surface of the guide path, The discharge motor is disposed at a position sandwiched between the first path forming portion and the second path forming portion.

2. The recording device according to claim 1, characterized in that The discharge path is formed in a shape that is bent so that the surface of the medium on which the recording is performed faces inward and is reversed. The discharge roller is provided in plurality. The plurality of discharge rollers include a first discharge roller and a second discharge roller located downstream of the first discharge roller.

3. The recording device according to claim 2, characterized in that The first discharge roller and the second discharge roller are located in the first direction relative to the recording unit. The discharge motor is located in the first direction relative to the recording unit.

4. The recording device according to claim 1, characterized in that Regarding the discharge motor, when viewed from the normal direction of the surface of the medium transported in the recording transport path, at least the motor body does not protrude from the first path forming portion in the width direction intersecting the first direction.

5. The recording device according to claim 1, characterized in that The discharge motor is in contact with the second path forming portion.

6. The recording device according to claim 3, characterized in that The recording device comprises: A reversing path, which is a medium conveying path connected to the guide path, and the reversing path reverses the medium and merges with the conveying path during recording; A reversing roller, disposed on the reversing path, and conveying the medium to the downstream of the reversing path; as well as A reversing motor drives the reversing roller, The reversing motor is disposed at a position sandwiched between the first path forming portion and the second path forming portion.

7. The recording device according to claim 6, characterized in that The reversing motor is located in the second direction relative to the recording unit.

8. The recording device according to claim 7, characterized in that The recording device comprises: a conveying roller, disposed in the recording conveying path, and conveying the medium toward a downstream of the recording conveying path; and A conveying motor drives the conveying rollers. The conveying motor is disposed at a position sandwiched between the first path forming portion and the second path forming portion.

9. The recording device according to claim 8, characterized in that The conveying motor is arranged in the first direction relative to the recording unit. The discharge motor is disposed at one end portion relative to the first path forming portion in a width direction, and the conveyance motor is disposed at the other end portion relative to the first path forming portion in the width direction, the width direction being a direction intersecting the first direction.

10. The recording device according to any one of claims 1 to 9, characterized in that: The first path forming portion is formed by one member having a shape extending from a position facing the recording portion in the first direction and extending from a position facing the recording portion in the second direction.

11. The recording device according to any one of claims 1 to 9, characterized in that The recording unit is composed of a liquid ejection head that records on a medium by ejecting liquid. The first path forming portion includes an opening at a position facing the recording portion, and the recording device includes: a cover portion, arranged inside the opening portion, capable of switching between a state of covering a liquid ejection surface of the liquid ejection head and a state of being separated from the liquid ejection surface; as well as The shutter is displaceable between a blocking position for blocking the opening and an opening position for opening the opening, and when located at the blocking position, the shutter supports the medium passing through a position facing the liquid ejection head.

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