Liquid ejection device

Abstract

The present application provides a liquid ejecting apparatus capable of suppressing a case where a supply flow path is in a transition state. The liquid ejecting apparatus includes: a liquid reservoir that stores a liquid; a liquid ejecting portion that ejects the liquid toward a medium to perform printing; a supply flow path that communicates the liquid reservoir with the liquid ejecting portion; an opening and closing mechanism that has an opening and closing portion that sets the supply flow path to an open state or a closed state, and a lever (62) that operates the opening and closing portion; and a scanner (5) that is movable between a first position that is a normal position at the time of performing printing, and a second position that is different from the first position, wherein a range of the lever (62) in which the supply flow path is set to a transition state between the open state and the closed state includes a position of the lever (62) at which the lever (62) interferes with the scanner (5) located at the first position.

Description

[0001] This application is a divisional application of the patent application with application number 202010104316.0, application date February 20, 2020, and invention name "Liquid ejecting apparatus". TECHNICAL FIELD

[0002] The present application relates to a liquid ejecting apparatus. BACKGROUND

[0003] In Patent Literature 1, a liquid ejecting apparatus that ejects ink from a liquid ejecting portion to perform printing is disclosed. An ink supply device provided in the liquid ejecting apparatus supplies ink stored in a tank to the liquid ejecting portion via a supply flow path. An opening and closing mechanism provided in the ink supply device switches the supply flow path to an open state and a closed state by rotating a knob by hand. The supply flow path in the open state enables a process that requires liquid supply. The supply flow path in the closed state enables a process that requires stop of liquid supply.

[0004] On the other hand, when the operation of the knob is stopped in a transition state between the open state and the closed state, liquid can be supplied at a smaller flow rate than in the open state. As a result, it is difficult to obtain the original process result in both the process that requires liquid supply and the process that requires stop of liquid supply.

[0005] Patent Literature 1: Japanese Patent Application Publication No. 2015-134485 SUMMARY

[0006] A liquid ejecting apparatus that solves the above-described problem includes a liquid storage portion that stores liquid; a liquid ejecting portion that ejects the liquid to a medium to perform printing; a supply flow path that communicates the liquid storage portion and the liquid ejecting portion; an opening and closing mechanism that has an opening and closing portion that sets the supply flow path to an open state or a closed state, and an operation portion that operates the opening and closing portion; and a moving portion that is movable between a first position that is a normal position when the printing is performed and a second position that is different from the first position, and a range of the operation portion in which the supply flow path is set to a transition state between the open state and the closed state includes a position of the operation portion in which the operation portion interferes with the moving portion in the first position. BRIEF DESCRIPTION OF DRAWINGS

[0007] Figure 1 FIG. 1 is a perspective view of a liquid ejecting apparatus in one embodiment.

[0008] Figure 2 FIG. 1 is a perspective view of a liquid ejecting apparatus in one embodiment.

[0009] Figure 3 A perspective view of the liquid ejecting apparatus in a state where the scanner is detached.

[0010] Figure 4 An exploded perspective view of the opening and closing mechanism provided in the liquid ejecting apparatus.

[0011] Figure 5 A sectional view of the opening and closing mechanism in a state where the supply flow path is open in the liquid ejecting apparatus.

[0012] Figure 6 A sectional view of the opening and closing mechanism in a state where the supply flow path is closed in the liquid ejecting apparatus.

[0013] Figure 7 A side view of the liquid ejecting apparatus showing the transition of the lever in one embodiment.

[0014] Figure 8 A side view of the liquid ejecting apparatus showing the transition of the lever in one embodiment.

[0015] Figure 9 A block diagram showing the electrical structure of the liquid ejecting apparatus in one embodiment.

[0016] Figure 10 A schematic view of the liquid ejecting apparatus in a state viewed from above in one embodiment.

[0017] Figure 11 A perspective view of a state where the displacement portion is in the allowable region in one embodiment.

[0018] Figure 12 A perspective view of a state where the displacement portion is in the restricted region in one embodiment. DETAILED DESCRIPTION

[0019] Reference Figures 1 to 12 One embodiment of the liquid ejecting apparatus will be described. In the following, the structure of the liquid ejecting apparatus, the structure of the opening and closing mechanism, the interference between the operation portion and the moving portion, the structure of the control portion and the first contact portion, the detection method of the opening and closing state of the supply flow path, and the structure of the restriction portion will be described in order. The liquid ejecting apparatus in this embodiment is, for example, an inkjet printer that performs printing by ejecting ink, which is an example of liquid, to a medium such as paper. In each of the following drawings, the sizes of the respective components are made to be as large as possible to the extent that the respective components are recognizable, and the sizes of the respective components are different from actual sizes.

[0020] In the following description, the liquid ejection device is assumed to be placed on a horizontal plane, with the Z-axis representing the vertical direction and the X-axis and Y-axis representing the directions perpendicular to the horizontal plane relative to the vertical direction. The X-axis, Y-axis, and Z-axis are orthogonal to each other. In the following description, the direction along the X-axis will also be referred to as the width direction X, the direction along the Y-axis will also be referred to as the depth direction Y, and the direction along the Z-axis will also be referred to as the vertical direction Z. The width direction X, depth direction Y, and vertical direction Z are orthogonal to each other. Sometimes, one end of the liquid ejection device in the width direction X is referred to as the right side or right side, and the other end opposite to one end is referred to as the left side or left side. Sometimes, one end of the liquid ejection device in the depth direction Y is referred to as the front surface side or front side, and the other end opposite to one end is referred to as the back side or rear side. Sometimes, one end of the liquid ejection device in the vertical direction Z is referred to as the upper surface side or upper side, and the other end opposite to one end is referred to as the lower surface side or lower side.

[0021] Structure of the liquid ejection device

[0022] Reference Figure 1 as well as Figure 2 The general structure of the liquid ejection device in this embodiment will be described below. Figure 1 This is a perspective view of the liquid ejection device 1 with the main body 2 closed, viewed from the front and above. Figure 2 This is a perspective view of the liquid ejection device 1 of the main body 2 of the device being opened, viewed from the front top of the device.

[0023] like Figure 1 As shown, the liquid ejection device 1 includes a device body 2 and a scanner 5.

[0024] The main body 2 of the device includes a housing 3 serving as an external frame, an operation panel 6, and a liquid storage unit 10. The housing 3 has a frame 4 that edges the opening OA. The opening OA is designed to allow the user to access the interior of the main body 2 of the device.

[0025] The operation panel 6 forms part of the front surface of the main body 2 of the device. The operation panel 6 includes a display section 7 such as a liquid crystal panel and operation buttons 8, which may include input buttons or a power switch. The operation panel 6 is connected to the housing 3 in a manner that allows it to rotate around its upper end as a fulcrum. The operation panel 6 is an example of a notification unit.

[0026] The device main body 2 houses a medium discharge tray, not shown. The medium discharge tray is housed in the device main body 2 in a manner that enables movement in the depth direction Y. The medium discharge tray is advanced and retracted between a position in which it is housed in the device main body 2 and a position in which it is pulled out to the front side from the device main body 2. The medium discharge tray is turned by the operation panel 6 so as to be exposed to the front of the device main body 2.

[0027] The scanner 5 is located at the upper portion of the device main body 2 in a manner that enables coverage of the opening OA from above. The scanner 5 is one example of a moving portion. The scanner 5 is coupled to the device main body 2 in a manner that enables turning about an end portion at the rear side of the scanner 5 as a fulcrum. The range of turning of the scanner 5 is between a first position and a second position. The range of turning of the scanner 5 includes the first position and the second position. In Figure 1 In the first position, the scanner 5 is disposed. In Figure 2 In the second position, the scanner 5 is disposed.

[0028] The first position is a position in which the scanner 5 covers the opening OA. The second position is a position in which the scanner 5 opens the inside of the device main body 2. In other words, the scanner 5 closes the opening OA at the first position and opens the opening OA at the second position. The first position is a normal position of the scanner 5 when the liquid discharge device 1 performs printing. The second position is a normal position of the scanner 5 when the inside of the device main body 2 is serviced.

[0029] In addition, the liquid discharge device 1 can also have a structure that does not have the scanner 5. In the structure that does not have the scanner 5, the liquid discharge device 1 has, for example, a cover that moves to a position that covers the opening OA and a position that opens the inside of the device main body 2. The cover is one example of a moving portion.

[0030] The liquid storage unit 10 is located on the lower side of the scanner 5 with respect to the right end of the front side of the scanner 5 in the first position. The liquid storage unit 10 has a liquid storage portion 13 that stores ink, a housing case 12 that houses the liquid storage portion 13, and a unit cover 11 that is installed on the housing case 12 in a turnable manner.

[0031] The liquid storage unit 10 has a plurality of liquid storage portions 13. Each of the liquid storage portions 13 stores any one of black ink, magenta ink, yellow ink, cyan ink, and photo black ink. The capacity of the ink that each of the liquid storage portions 13 can house can be the same as or different from the capacity of the ink that the other liquid storage portions 13 can house. The liquid storage portion 13 has a display portion 14. The display portion 14 is configured to enable confirmation of the remaining amount of the ink in the liquid storage portion 13 from the outside.

[0032] The liquid discharge apparatus 1 is provided with a medium storage portion 22 capable of storing a medium. The medium storage portion 22 is located on the lower side of the operation panel 6. The medium storage portion 22 is capable of being inserted and pulled out for implementing replenishment or removal of the medium at the front side compared with the apparatus main body 2.

[0033] Reference will be made to the structure of the inside of the liquid discharge apparatus. Figure 3 A perspective view of the liquid discharge apparatus 1 with the scanner 5 detached is shown from the upper side of the rear side. Figure 3

[0034] As shown in FIG. 1, the apparatus main body 2 is provided with a carriage 30, a supply flow path 40, a liquid discharge portion 50, and an opening and closing mechanism 60. Figure 3

[0035] The carriage 30 is stored inside the housing 3. The carriage 30 is reciprocally moved along the width direction X. One of the directions in which the carriage 30 is reciprocally moved is a first direction, and the direction opposite to the first direction is a second direction. The first direction is also referred to as a main scanning direction.

[0036] The carriage 30 is a hollow container. The carriage 30 is provided with a carriage cover 32 at the upper side in the vertical direction Z. The carriage 30 mounts the liquid discharge portion 50 and the opening and closing mechanism 60. The liquid discharge portion 50 is installed at the lower portion of the carriage 30. The opening and closing mechanism 60 is installed at the upper portion of the carriage 30.

[0037] The supply flow path 40 is capable of communicating the liquid storage portion 13 and the liquid discharge portion 50. The ink stored in the liquid storage portion 13 is supplied to the liquid discharge portion 50 through the supply flow path 40. The supply flow path 40 is changed between an open state and a closed state by the opening and closing mechanism 60. The supply flow path 40 includes a transition state between the open state and the closed state.

[0038] The open state is a state of the supply flow path 40 in which the ink of a flow rate required for printing is capable of being supplied to the liquid discharge portion 50. The state in which the ink of the flow rate required for printing is capable of being supplied to the liquid discharge portion 50 is, for example, a state in which a portion of the supply flow path 40 is crushed to a degree at which the ink of the flow rate required for printing flows, or a state in which the supply flow path 40 is not crushed.

[0039] The closed state is a state of the supply flow path 40 in which the ink is not capable of being supplied to the liquid discharge portion 50. The state in which the ink is not capable of being supplied to the liquid discharge portion 50 is a state in which a portion of the supply flow path 40 is crushed and closed. The state in which the ink is not capable of being supplied to the liquid discharge portion 50 includes a state in which a portion of the supply flow path 40 is crushed to a degree at which the ink does not leak at the liquid discharge portion 50 or the like even when the liquid discharge apparatus 1 receives a vibration at the time of conveyance or the like.​​

[0040] A transitional state refers to all states of the supply channel 40 other than the open and closed states, and is the state between the open and closed states. For example, a transitional state may also include a state in which the supply channel 40 can supply ink at a lower flow rate compared to the open state. A transitional state may also include a state in which the supply channel 40 can supply ink at a higher flow rate compared to the closed state. A transitional state may also include a state in which the ink flow rate is unstable compared to the open or closed states.

[0041] The liquid ejection section 50 includes a pressure generating chamber (not shown), a piezoelectric element (not shown), and multiple nozzles 51. The pressure generating chamber includes a vibrating plate (not shown). The piezoelectric element causes the vibrating plate to vibrate, thereby generating pressure variations in the pressure generating chamber.

[0042] Multiple nozzles 51 are located on the lower surface of the liquid ejection section 50. The lower surface of the liquid ejection section 50 is the nozzle surface where the multiple nozzles 51 are located. The multiple nozzles 51 are arranged, for example, along the depth direction Y, thereby forming a nozzle array.

[0043] Each nozzle 51 is connected to a relay adapter (not shown) via a pressure generating chamber and a flow channel (not shown) provided in the liquid ejection section 50. The relay adapter is a container for temporarily storing ink. Multiple relay adapters are mounted inside the carriage 30 and covered by the carriage cover 32. The multiple relay adapters are connected to the liquid storage section 13 via a supply flow channel 40. The ink stored in the liquid storage section 13 is supplied to the liquid ejection section 50 via the supply flow channel 40 and the relay adapters.

[0044] When printing is performed by the liquid ejection device 1, a plurality of nozzles 51 are configured to face the medium. A piezoelectric element causes a pressure fluctuation in the pressure generating chamber, thereby causing ink supplied from the supply channel 40 to be ejected from the nozzles 51 onto the medium. In this embodiment, the direction in which the liquid ejection section 50 ejects ink is along the vertical direction Z.

[0045] Structure of opening and closing mechanism

[0046] Reference Figure 4 Let's explain the opening and closing mechanism. Figure 4 This is an exploded perspective view of the opening and closing mechanism 60 of the liquid ejection device 1.

[0047] like Figure 4 As shown, the opening and closing mechanism 60 includes an opening and closing section 60A that switches the supply channel 40 to an open state and a closed state, an operating section 60B that operates the opening and closing section 60A, and a force-applying component 60C that applies force to the operating section 60B.

[0048] The opening and closing section 60A has a shaft section 64, a cam section 65, a pressing member 66, a supply flow passage support section 68, and a housing 69. The supply flow passage support section 68 and the housing 69 are outer frames of the opening and closing mechanism 60. Between the supply flow passage support section 68 and the housing 69, the pressing member 66, the cam section 65, and the shaft section 64 are arranged in this order from the supply flow passage support section 68 side along the vertical direction Z. Each supply flow passage 40 is located between the pressing member 66 and the supply flow passage support section 68. In a state in which the opening and closing mechanism 60 is mounted on the carriage 30, the housing 69 is located on the upper side compared to the supply flow passage support section 68.

[0049] A plurality of grooves 68G are provided on the supply flow passage support section 68. The plurality of grooves 68G extend along the depth direction Y and are arranged side by side along the width direction X. One supply flow passage 40 is inserted into each of the grooves 68G. The supply flow passages 40 are arranged side by side along the width direction X.

[0050] In the supply flow passage support section 68, a recessed section 68H is provided. The recessed section 68H is a recess along the vertical direction Z. The recessed section 68H extends along the width direction X in such a manner as to penetrate the entirety of the plurality of grooves 68G across the width direction X.

[0051] The pressing member 66 crosses the upper side of all the supply flow passages 40 arranged side by side along the width direction X along the width direction X. The pressing member 66 is inserted into the recessed section 68H. The pressing member 66 and the bottom of the recessed section 68H sandwich the supply flow passage 40 inserted into each of the grooves 68G in the vertical direction Z.

[0052] The pressing member 66 is housed in the supply flow passage support section 68 in such a manner as to be movable along the vertical direction Z. A wall that divides the recessed section 68H guides the movement of the pressing member 66 along the vertical direction Z. The pressing member 66 is movable toward the bottom of the recessed section 68H and toward the opening of the recessed section 68H.

[0053] The pressing member 66, by moving toward the bottom of the recessed section 68H, strengthens the pressing of the supply flow passage 40. The pressing member 66, by moving toward the opening of the recessed section 68H, weakens the pressing of the supply flow passage 40. When the pressing of the supply flow passage 40 is strengthened, the supply flow passage 40 transitions from the open state toward the closed state. When the pressing of the supply flow passage 40 is weakened, the supply flow passage 40 transitions from the closed state toward the open state.

[0054] The shaft portion 64 extends along the width direction X. The shaft portion 64 spans the entire width direction X of the pressing member 66 and is located above the pressing member 66. The shaft portion 64 is mounted on the carriage 30 in such a way that it can rotate in a first rotational direction with the rotation axis A as the center of rotation, and rotate in a second rotational direction opposite to the first rotational direction. With the opening / closing mechanism 60 mounted on the carriage 30, the rotation axis A of the shaft portion 64 is arranged along the width direction X and supported on the housing 69 in a manner that it does not move in the vertical direction Z. One end of the shaft portion 64 in the width direction X is integral with the operating part 60B.

[0055] The cam portion 65 extends along the width direction X. The cam portion 65 has a length that spans the entire length of the plurality of supply channels 40 along the width direction X. The cam portion 65 is integral with the shaft portion 64 and rotates in a manner that is linked to the rotation of the shaft portion 64. When the opening and closing mechanism 60 is mounted on the slide 30, the cam portion 65 is located above the pressing member 66.

[0056] The cam surface 65S of the cam portion 65 is the outer peripheral surface of the cam portion 65 and is a cylindrical surface extending along the width direction X. The rotation center of the cam portion 65 is the rotation axis A of the shaft portion 64, but the center of the cam surface 65S is different from the rotation axis A of the shaft portion 64. The center of the cam surface 65S is located outside the diameter direction compared to the rotation axis A. That is, the center of the cam surface 65S of the cam portion 65 is eccentric relative to the rotation axis A of the shaft portion 64. When the opening and closing mechanism 60 is mounted on the slide 30, a portion of the cam surface 65S contacts the pressing member 66 in a downward-facing manner.

[0057] Although in this embodiment the opening and closing mechanism 60 has two cam portions 65 arranged side by side along the width direction X, as long as it has a length spanning the entire length of the plurality of supply channels 40, the cam portion 65 can be one or two. Although the cam surface 65S of the cam portion 65 is a cylindrical surface extending along the width direction X, as long as it has a cam surface that changes the position of the pressing member 66 in the vertical direction Z in conjunction with the rotation of the shaft portion 64, it can be an elliptical cylindrical surface extending along the width direction X, or an irregular shape other than a cylindrical surface or an elliptical cylindrical surface.

[0058] The operating part 60B includes a rod 62. The rod 62 includes a base 62A and a top end 62B. The base 62A is integral with the end 64E1 of the shaft 64 and extends radially from the end 64E1 of the shaft 64 toward the top end 62B. The rod 62 is bent at the boundary between the base 62A and the top end 62B.

[0059] The lever 62 is located in a plane orthogonal to the rotation axis A. The lever 62 is mounted on the carriage 30 in a manner capable of rotating with the rotation axis A as a center of rotation. The lever 62 is rotated in a first rotation direction or a second rotation direction, for example, by a user's hand. A rotation force acting on the lever 62 causes the shaft portion 64 to rotate, thereby causing the cam portion 65 to rotate. The rotation of the cam portion 65 causes the supply flow passage 40 to shift from the open state toward the closed state or from the closed state toward the open state.

[0060] The rotation of the lever 62 includes a closing operation of tilting the tip end portion 62B toward the front side with the end portion 64E1 of the shaft portion 64 as a fulcrum and an opening operation of tilting the tip end portion 62B toward the rear side.

[0061] The movable range of the lever 62 is a range of relative positions of the lever 62 with respect to the opening and closing portion 60A. The movable range of the lever 62 is sandwiched by an end portion position reached by the opening operation of the lever 62 and an end portion position reached by the closing operation of the lever 62. The movable range of the lever 62 includes an open position in which the supply flow passage 40 is set to the open state and a closed position in which the supply flow passage 40 is set to the closed state. The movable range of the lever 62 includes a transition position between the open position and the closed position. The movable range of the lever 62 is one example of the movable range of the operation portion.

[0062] The urging member 60C is an elastic body such as a coil spring extending in one direction or a rubber member. In the present embodiment, the end portion 64E1 on one side in the width direction X of the shaft portion 64 is integrated with the lever 62, and the end portion 64E2 on the other side in the width direction X of the shaft portion 64 is connected to one end portion of the urging member 60C. The other end portion of the urging member 60C is hooked to the hooking portion 68E of the supply flow passage support portion 68.

[0063] The urging force output by the urging member 60C is transmitted to the end portion 64E2 of the shaft portion 64 and acts so as to stretch the tip end portion 62B of the lever 62 downward. For example, when the tip end portion 62B of the lever 62 is located on the front side compared to the shaft portion 64, the urging force output by the urging member 60C urges the lever 62 toward the closed position. Further, when the tip end portion 62B of the lever 62 is located on the rear side compared to the shaft portion 64, the urging force output by the urging member 60C urges the lever 62 toward the open position.

[0064] The housing 69 is configured to be capable of being engaged with the supply flow passage support portion 68. The housing 69 covers the shaft portion 64, the pressing member 66, and the cam portion 65 from the upper side in the vertical direction Z. The shaft portion 64, the pressing member 66, and the cam portion 65 are protected by the housing 69 and the supply flow passage support portion 68. The lever 62 and the urging member 60C are exposed to the outside of the housing 69 and the supply flow passage support portion 68.

[0065] movable range of the operation section

[0066] Figure 5 and Figure 6 is a view schematically showing a cross section of the opening and closing mechanism 60 as viewed from the width direction X. In Figure 5 and Figure 6 , the illustration of the housing 69 is omitted, and the structure of the opening and closing section 60A on the paper surface depth side in Figure 5 and Figure 6 is shown by a solid line, and the lever 62 on the paper surface near side in Figure 5 and Figure 6 is shown by a two-dot chain line. In Figure 5 , the position of the lever 62 is an open position, and the supply flow path 40 is in an open state. In Figure 6 , the position of the lever 62 is a closed position, and the supply flow path 40 is in a closed state. Further, in order to facilitate the explanation of the operation angle θ, in Figure 5 , an open position different from the end position reached by the opening operation of the lever 62 is shown, and in Figure 6 , a closed position different from the end position reached by the closing operation of the lever 62 is shown.

[0067] The cam surface 65S of the cam section 65 rotates in linkage with the rotation of the shaft section 64. The distance between the position on the cam surface 65S which contacts the pressing member 66 and the rotation axis A of the shaft section 64 varies in linkage with the rotation of the shaft section 64, since the center of the cam surface 65S is eccentric from the rotation axis A. In other words, the position of the pressing member 66 in the vertical direction Z varies in linkage with the rotation of the shaft section 64, since the center of the cam surface 65S is eccentric from the rotation axis A.

[0068] At the end position reached by the opening operation of the lever 62, the operation angle θ of the lever 62 becomes a minimum value, that is, a minimum operation angle. At the end position reached by the closing operation of the lever 62, the operation angle θ of the lever 62 becomes a maximum value, that is, a maximum operation angle. The maximum operation angle is, for example, 180°.

[0069] As shown in Figure 5 , the operation angle θ of the lever 62 is a central angle with the rotation axis A as the center, which is defined by a straight line connecting the base end and the top end of the lever 62 and the rotation axis A, and is an angle in which the minimum operation angle is set to 0°. Further, a straight line passing through the rotation axis A of the shaft section 64 and extending in the depth direction Y can be set as a reference line L, and an angle formed by the straight line connecting the base end and the top end of the lever 62 and the reference line L can be set as the operation angle θ.

[0070] The movable range of the lever 62 is sandwiched by an end position reached by the lever 62 through the opening operation and an end position reached by the lever 62 through the closing operation. The end position reached by the lever 62 through the opening operation is included in the opening position. The end position reached by the lever 62 through the closing operation is included in the closing position.

[0071] The opening position is a position of the lever 62 in which the supply flow path 40 is set to the open state. Since the open state is a state in which the ink of the flow rate required for printing can be supplied to the liquid ejection section 50, the opening position can be either only the end position reached by the lever 62 through the opening operation or a certain range including the end position reached by the lever 62 through the opening operation. That is, the operation angle Θ at the opening position can be either the minimum operation angle or a range including the minimum operation angle and angles other than the minimum operation angle. The range including the minimum operation angle and angles other than the minimum operation angle is, for example, 0° or more and 10° or less.

[0072] The closing position is a position of the lever 62 in which the supply flow path 40 is set to the closed state. Since the closed state is a state in which the ink cannot be supplied to the liquid ejection section 50, the closing position can be either only the end position reached by the lever 62 through the closing operation or a certain range including the end position reached by the lever 62 through the closing operation. That is, the operation angle Θ at the closing position can be either the maximum operation angle or a range including the maximum operation angle and angles other than the maximum operation angle. The range including the maximum operation angle and angles other than the maximum operation angle is, for example, 140° or more and 180° or less.

[0073] The transition position is a position of the lever 62 in which the supply flow path 40 is set to the transition state. The transition position is a range in the movable range of the lever 62 other than the opening position and the closing position. That is, the operation angle Θ at the transition position is a range in all the operation angles other than the operation angle Θ at the opening position and the operation angle Θ at the closing position. The operation angle Θ at the transition position is, for example, greater than 10° and less than 140°.

[0074] When the lever 62 is positioned at the opening position, the pressing member 66 sufficiently opens the supply flow path 40. When the lever 62 is positioned at the closing position, the pressing member 66 presses the supply flow path 40 to sufficiently close the supply flow path 40. When the lever 62 is positioned at the transition position, the pressing member 66 presses the supply flow path 40 in a manner that does not sufficiently open the supply flow path 40 or does not sufficiently close the supply flow path 40.

[0075] Here, as Figure 5As shown, when the lever 62 is located at the open position to place the supply flow path 40 in the open state, the tip portion 62B is rotated toward the upper side of the front side. That is, the lever 62 located at the open position is rotated toward the direction shown by an arrow mark in the drawing. Thereby, the lever 62 shifts to the transition position, and the pressing member 66 approaches the lower portion of the supply flow path support portion 68, so that the pressing member 66 starts to crush the supply flow path 40.

[0076] Next, when the tip portion 62B is rotated toward the lower side of the rear side, the position of the pressing member 66 is further changed toward the upper side. Thereby, as shown in Figure 6 the drawing, the lever 62 returns to the open position, so that the supply flow path 40 is changed to the open state.

[0077] In contrast, when the lever 62 is located at the closed position to place the supply flow path 40 in the closed state, the tip portion 62B is rotated toward the upper side of the rear side. That is, the lever 62 located at the closed position is rotated toward the direction shown by an arrow mark in the drawing. Thereby, the lever 62 returns to the transition position, and the pressing member 66 is distanced from the lower portion of the supply flow path support portion 68, so that the crushing of the supply flow path 40 is relaxed. Figure 6

[0078] Next, when the tip portion 62B is rotated toward the lower side of the rear side, the position of the pressing member 66 is further changed toward the upper side. Thereby, as shown in Figure 5 the drawing, the lever 62 returns to the open position, so that the supply flow path 40 is changed to the open state.

[0079] The urging member 60C urges the tip portion 62B of the lever 62 toward the lower side. That is, the urging member 60C urges the lever 62 toward the open position when the lever 62 is located at the transition position close to the open position. Further, the urging member 60C urges the lever 62 toward the closed position when the lever 62 is located at the transition position close to the closed position.

[0080] ​The pressing member 66 receives a frictional force between it and the supply flow path 40, and a reaction force of the supply flow path 40 against the pressing of the pressing member 66, and the like. The frictional force or the reaction force received by the pressing member 66 is also a restraining force that stops the rotation of the lever 62. Although the force output by the force applying member 60C is smaller than the restraining force acting on the lever 62, it is a force that resists the restraining force. Therefore, corresponding to the amount by which the lever 62 close to the open position is forced toward the open position, it is possible to restrain the case where the lever 62 stops at the transition position. Also, corresponding to the amount by which the lever 62 close to the closed position is forced toward the closed position, it is possible to restrain the case where the lever 62 stops at the transition position. Thus, the supply of ink performed by the stopping of the lever 62 at the transition position is restrained, and thus the liquid ejecting apparatus 1 can restrain the consumption of ink without the user's intention.

[0081] Interference between the operation portion and the moving portion

[0082] Figure 7 and Figure 8 is a side view when the liquid ejecting apparatus 1 is viewed from the left side. Figure 7 and Figure 8 is a view indicating the change in the movement of the scanner 5 from the second position to the first position, and is a view in which the positions of the lever 62 are different from each other. Also, in Figure 7 and Figure 8 , the scanner 5, the lever 62, and the carriage 30 provided in the apparatus main body 2 are schematically illustrated, and the illustration of other structural elements is omitted.

[0083] As shown in Figure 7 , the lower surface of the scanner 5 is provided with a rib 5A. The rib 5A has a shape that protrudes toward the lower side from the lower surface of the scanner 5, and extends along the depth direction Y. The rib 5A is located directly above the lever 62 in a state where the scanner 5 is located at the first position. Also, the rib 5A can be located on the upper side of the lever 62 at a position where the liquid ejecting portion 50 does not oppose the medium, or can be located on the upper side of the lever 62 at a position where the liquid ejecting portion 50 opposes the medium. Further, the rib 5A can be located on the upper side of the lever 62 across the entire width direction X within the range in which the carriage 30 moves. Also, in the present embodiment, an example is described in which the rib 5A is located directly above the lever 62 in a state where the carriage 30 is located at the initial position HP, that is, in a state where the liquid ejecting portion 50 is located at a position that does not oppose the medium.

[0084] The rib 5A has a shape that can interfere with the lever 62 located at the transition position on the lower side of the rib 5A in a state in which the scanner 5 closes the device main body 2. The rib 5A has a shape that does not interfere with the lever 62 located at the closing position or the opening position on the lower side of the rib 5A in a state in which the scanner 5 closes the device main body 2. For example, the rib 5A has a height that does not interfere with the lever 62 of the closing position or the opening position and does not lift the scanner 5 to such an extent that the scanner 5 closes the device main body 2. The lower surface of the rib 5A can be a flat surface or a curved surface.

[0085] In the movable range of the lever 62, the range in which the supply flow path 40 is set to the transition state is the transition position. The transition position of the lever 62 includes a position at which the lever 62 interferes with the rib 5A of the scanner 5 in the first position. In addition, the position of the lever 62 that interferes with the rib 5A can be the entire transition position, a part of the transition position, and at least one of a part of the opening position and a part of the closing position in addition to the transition position. The operation angle θ at the position of the lever 62 that interferes with the rib 5A is, for example, 40° or more and 80° or less, 100° or more and 170° or less.

[0086] Here, as shown by the solid line of FIG. 6, Figure 7 When the scanner 5 moves from this state to the first position from the second position, the rib 5A interferes with the lever 62 located on the lower side of the rib 5A. The lever 62 that interferes with the rib 5A near the closing position is pressed by the scanner 5 that moves to the first position, and thus moves in a manner close to the closing position. As a result, as shown by the double-dot chain line of FIG. 6, Figure 7 the lever 62 located at the transition position near the closing position moves toward the closing position. The lever 62 that moves toward the closing position is urged by the urging member 60C, and thus easily moves to the end position reached by the closing operation.

[0087] If the supply flow path 40 is closed in advance when the liquid discharge device 1 is transported, the ink is less likely to leak from the nozzle 51 of the liquid discharge portion 50. If described in detail, when the liquid discharge device 1 is transported, a vibration or an impact is applied to the ink in the liquid reservoir 13 or the supply flow path 40. When the vibration or the impact is applied to the ink in the liquid reservoir 13 or the supply flow path 40, a pressure is applied to the ink in the nozzle 51 of the liquid discharge portion 50, and thus there is a possibility that the ink leaks from the nozzle 51 of the liquid discharge portion 50. In this regard, if the scanner 5 is moved to the first position before the liquid discharge device 1 is transported and the supply flow path 40 is set to the closed state by the lever 62, the pressure variation applied to the ink in the liquid discharge portion 50 can be suppressed to be low during the transportation of the liquid discharge device 1, and thus the possibility that the ink leaks from the nozzle 51 of the liquid discharge portion 50 can be suppressed.

[0088] Further, as shown by the solid line in FIG. 27, since the lever 62 is in a state closer to the open position than to the intermediate position between the open position and the closed position, the rib 5A interferes with the lever 62 located on the lower side of the rib 5A when the scanner 5 is moved from the second position to the first position. The lever 62 closer to the open position, which interferes with the rib 5A, is pressed by the scanner 5 moved to the first position, and thus moves closer to the open position. As a result, as shown by the two-dot chain line in FIG. 27, the lever 62 closer to the open position located in the intermediate position moves toward the open position. The lever 62 moved toward the open position is urged by the urging member 60C, and thus easily moves to the position reached by the opening operation. Figure 8 Figure 8 As described above, for the lever 62 operated by hand, the lever 62 easily stops at the intermediate position. When the lever 62 is located at the intermediate position, the pressing member 66 causes the supply flow path 40 to be in the transition state. When the supply flow path 40 is in the transition state, the liquid is easily supplied at a smaller flow rate than in the open state. Therefore, when the supply flow path 40 is in the transition state in a process in which the liquid supply is required, the liquid will not be supplied in a sufficient amount. Further, when the supply flow path 40 is in the transition state in a process in which the liquid supply is required to be stopped, since the supply flow path 40 is not in the closed state, the liquid will leak in the transportation of the liquid discharge device 1 or the like.

[0089] As described above, for the lever 62 operated by hand, the lever 62 easily stops at the intermediate position. When the lever 62 is located at the intermediate position, the pressing member 66 causes the supply flow path 40 to be in the transition state. When the supply flow path 40 is in the transition state, the liquid is easily supplied at a smaller flow rate than in the open state. Therefore, when the supply flow path 40 is in the transition state in a process in which the liquid supply is required, the liquid will not be supplied in a sufficient amount. Further, when the supply flow path 40 is in the transition state in a process in which the liquid supply is required to be stopped, since the supply flow path 40 is not in the closed state, the liquid will leak in the transportation of the liquid discharge device 1 or the like.

[0090] ​In the present embodiment, the interference of the scanner 5 at the first position, which is the normal position, with the lever 62 can also be an opportunity for the liquid ejecting apparatus 1 or the user to implement a process for avoiding the transient state. As a result, it is possible to suppress the case where the supply flow path 40 is continuously in the transient state. Further, the interference of the lever 62 with the scanner 5 moves the lever 62 toward the closer of the closed position and the open position. Therefore, it is also possible to bring the lever 62, which is more likely to be in the closed position, closer to the closed position, and to bring the lever 62, which is more likely to be in the open position, closer to the open position.

[0091] For example, in a case where the supply flow path 40 is not completely closed by the operation of the lever 62 by the user, it is possible to set the supply flow path 40 to the closed state by the user's operation of moving the scanner 5 to the first position. Further, in a case where the supply flow path 40 is not completely opened by the operation of the lever 62 by the user, it is possible to set the supply flow path 40 to the open state by the user's operation of moving the scanner 5 to the first position.

[0092] In addition, the transition position close to the open position and the transition position close to the closed position are ranges different from each other. The transition position close to the open position is a position closer to the open position than the middle of the open position and the closed position. The transition position close to the closed position is a position closer to the closed position than the middle of the open position and the closed position. In the present embodiment, the middle of the closed position and the open position is a position where the operation angle θ at the middle becomes half of the total of the maximum operation angle and the minimum operation angle.

[0093] Further, the middle of the closed position and the open position can also be a position other than the position where the operation angle θ at the transition position is 90°. The middle of the closed position and the open position can also be a position closer to the open position than the closed position. The middle of the closed position and the open position can also be, for example, a position where the distance between the pressing member 66 and the bottom of the recessed portion 68H is half of the distance at the open position. The transition position close to the open position and the transition position close to the closed position can be changed by the shape or size of the lever 62 or the shape or size of the cam portion 65.

[0094] Further, the transition position close to the closed position, which can be moved to the closed position due to the interference with the rib 5A, and the transition position close to the closed position, which can obtain assisted movement by the urging of the urging member 60C, can be ranges equal to each other or ranges different from each other. The transition position close to the closed position, which can obtain assisted movement by the urging of the urging member 60C, can be changed by a change in the direction of the urging applied by the urging member 60C.

[0095] For example, the operating angle θ at the transition position near the closed position, which allows the rib 5A to move to the closed position through the interference of the rod 62, is 100° or more and less than 140°. On the other hand, the operating angle θ at the transition position near the closed position, which allows the movement towards the closed position to be assisted by the force applied by the force-applying member 60C, can be 85° or more and less than 120°. In this example, when the operating angle θ is 100° and the scanner 5 moves from the second position to the first position, the interference of the rib 5A and the rod 62 causes the rod 62 to rotate towards the closed position. Furthermore, the rotation of the rod 62 is assisted by the applied force until the operating angle θ reaches 120°. Moreover, when the scanner 5 is in the first position, the rod 62 passes through the transition position and moves, for example, until the operating angle θ reaches 170°. As a result, the supply channel 40 becomes closed, thereby preventing the rod 62 from being in the transition state.

[0096] Furthermore, the transitional position near the open position, which can be moved to the open position through interference with the rib 5A, and the transitional position near the open position, which can be assisted in movement by the force applied by the force-applying member 60C, can be either equal in range or different in range. The transitional position near the open position, which can be assisted in movement by the force applied by the force-applying member 60C, can be changed by changing the direction of the force applied by the force-applying member 60C.

[0097] For example, the operating angle θ at the transition position near the open position, which allows movement to the open position via the interference of rib 5A and rod 62, is greater than 40° and less than 80°. On the other hand, the operating angle θ at the transition position near the open position, which allows assisted movement via the force applied by force-applying member 60C, can be greater than 60° and less than 85°.

[0098] First contact section and control section

[0099] Reference Figure 9 as well as Figure 10 The structure of the first contact part and the control part will be explained. Figure 9 This is a block diagram showing the electrical structure of the liquid ejection device 1. Figure 10 This is a schematic diagram showing the liquid ejection device 1 as observed from the upper surface in the vertical direction Z.

[0100] exist Figure 10 The diagram schematically illustrates the carriage 30, the opening and closing mechanism 60, the basket 3, and the frame 4, while other structural elements are omitted. Furthermore, in Figure 10 The diagram shows the front surface of the basket 3 in the depth direction, while the rear surface of the basket 3 in the depth direction Y is omitted. Figure 10In the drawing, hatching is applied to the frame 4 that constitutes a part of the housing 3.

[0101] As shown in Figure 9 and Figure 10 , the carriage 30 is capable of reciprocating in the width direction X by a driving force imparted from the carriage motor 31. On a non-illustrated guide shaft of the carriage motor 31, a non-illustrated driving pulley is provided. A non-illustrated driven pulley is provided in the apparatus main body 2 in a manner spaced apart in the width direction X with respect to the driving pulley. A non-illustrated endless belt is wound around the driving pulley and the driven pulley. At least a portion of the endless belt holds the carriage 30 at a non-illustrated holding portion provided at an end portion on the back face side of the carriage 30. When the carriage motor 31 is rotationally driven, the endless belt is rotated in the same direction as the rotational direction of the carriage motor 31, thereby causing the carriage 30 to reciprocate in the width direction X.

[0102] In the housing 3, a linear encoder 75 for detecting the position and speed of the reciprocating carriage 30 in the width direction X is provided. The linear encoder 75 is constituted by a non-illustrated scale plate provided on the housing 3 in a straight line parallel to the width direction X, and a photoelectric sensor 76 provided on the carriage 30, and outputs a predetermined electric signal corresponding to the movement state of the carriage 30 from the photoelectric sensor 76.

[0103] As shown in Figure 10 , in the case where the carriage 30 is caused to reciprocate along a guide shaft provided extending in the width direction X, the region in which the carriage 30 moves includes a print region PA in which the liquid discharge portion 50 performs printing, and a non-print region RA in which the liquid discharge portion 50 does not perform printing.

[0104] The non-print region RA includes a non-print region RA1 on the right side in the width direction X with respect to the print region PA, and a non-print region RA2 on the left side in the width direction X with respect to the print region PA. The print region PA is disposed between the two non-print regions RA1, RA2 in the width direction X.

[0105] In the non-print region RA1, an initial position HP as a position at which the carriage 30 stands by when not printing is disposed. In Figure 10 , the carriage 30 is positioned at the initial position HP.

[0106] The carriage 30 is capable of moving between a predetermined position and a position other than the predetermined position. The predetermined position refers to, for example, the initial position HP. For example, the carriage 30 is positioned at the predetermined position when positioned at the initial position HP. The carriage 30 is positioned at a position other than the predetermined position when positioned in the print region PA or the like other than the initial position.

[0107] In this embodiment, a maintenance unit 55 is disposed directly below the carriage 30 located at the initial position HP, for performing maintenance on the liquid ejection section 50, including cleaning the nozzle 51. The maintenance unit 55 includes, for example, a cap (not shown) that can abut against the liquid ejection section 50 in a manner that surrounds the nozzle 51, and can perform cleaning of the nozzle 51 by depressurizing the space formed by the abutment of the cap to expel unwanted ink or air bubbles from the nozzle 51.

[0108] Furthermore, in this embodiment, a liquid receiving section (not shown) is provided directly below the carriage 30 as it moves to the non-printing area RA2. This liquid receiving section receives ink discharged from the nozzle 51 via a maintenance-like air ejection. Air ejection refers to the process of discharging unused ink from the nozzle 51 by driving a piezoelectric element, thereby eliminating ink thickening within the nozzle 51.

[0109] Electrical structure of liquid ejection device

[0110] Figure 9 Here is a block diagram showing the electrical structure of the liquid ejection device 1 according to this embodiment.

[0111] like Figure 9 As shown, the control unit 80 includes a CPU (central processing unit) 81 and a memory 82, an interface unit (I / F) 83 and a detection unit 84, etc., which are disposed on the control board.

[0112] The I / F83 performs data transmission and reception between itself and an external personal computer (PC) 110. The connection between PC 110 and I / F83 can be either disconnected from or connected to a network. The connection between PC 110 and I / F83 can be either wired or wireless.

[0113] CPU 81 is an arithmetic processing unit used to control the various drive units included in the liquid ejection device 1. Memory 82 is a storage element such as RAM or EPROM that includes an area for storing the program executed by CPU 81 and a working area for executing the program.

[0114] The control unit 80 drives the piezoelectric element of the liquid ejection unit 50, thereby causing the multiple nozzles 51 to eject ink. The control unit 80 supplies a drive signal to the carriage motor 31, thereby driving the carriage motor 31.

[0115] The optical sensor 76 of the linear encoder 75 detects the position and speed of the carriage 30 that moves by the driving of the carriage motor 31. The control section 80 receives the detection signal transmitted from the linear encoder 75. The control section 80 calculates the position and moving speed of the carriage 30 in the first direction using the detection signal received from the linear encoder 75.

[0116] The control section 80 performs the maintenance operation of the liquid discharge section 50 by controlling the driving of the maintenance unit 55. The control section 80 receives the command from the operation button 8 operated by the user and performs various controls. The control section 80 drives the conveyance mechanism 25 to move the medium in the conveyance direction that intersects the first direction.

[0117] The control section 80 creates print data based on the image data input from the PC 110. The control section 80 controls the driving of the liquid discharge section 50, the conveyance mechanism 25, the carriage motor 31, and the like using the print data, and thereby records an image on the medium. The control section 80 can also create print data based on the operation command input from the operation panel 6. In addition, the PC 110 can be configured to create print data based on image data. At this time, the control section 80 controls the driving of the liquid discharge section 50, the conveyance mechanism 25, the carriage motor 31, and the like using the print data received from the PC 110.

[0118] The opening / closing detection section 85 includes an optical sensor or the like and detects whether the scanner 5 is in the first position. The control section 80 receives the detection signal from the opening / closing detection section 85. The control section 80 grasps the opening / closing state of the scanner 5 using the detection signal received from the opening / closing detection section 85.

[0119] The detection section 84 detects the torque of the carriage motor 31 and thereby always monitors whether the carriage motor 31 is in an overload state. The control section 80 moves the carriage 30 on which the opening / closing mechanism 60 is mounted from the initial position HP to the first direction. At this time, in a case where the driving load of the carriage motor 31 exceeds a threshold value that is predetermined, that is, a threshold value stored in the memory 82, the detection section 84 determines that the carriage motor 31 is in an overload state.

[0120] In addition, the threshold value stored in the memory 82 is set between the driving load of the carriage motor 31 when the carriage 30 moves smoothly in the width direction X and the driving load of the carriage motor 31 when the movement of the carriage 30 is hindered.

[0121] Further, in a case where the driving load of the carriage motor 31 exceeds the threshold value for a certain time, the detection section 84 can also determine that the carriage motor 31 is in an overload state. The certain time is, for example, one second or more. There is a possibility that the driving load of the carriage motor 31 sharply rises instantaneously and exceeds the threshold value. If a configuration in which a case where the driving load of the carriage motor 31 exceeds the threshold value for a certain time is determined to be an overload state, the case where the driving load sharply rises instantaneously can be excluded from the case where the carriage motor 31 is in an overload state.

[0122] In the setting process of each region, the control section 80 causes the carriage 30 to move in the second direction so as to come into contact with the side wall of the housing 3. When the carriage 30 comes into contact with the side wall of the housing 3, the movement of the carriage 30 in the second direction is hindered. When the movement of the carriage 30 in the second direction is hindered, the driving load of the carriage motor 31 increases. The control section 80 sets the position of the carriage 30 at the time when the detection section 84 detects an overload state as a reference position. The control section 80 sets the initial position HP, the non-printing region RA1, the non-printing region RA2, and the range of the printing region PA in the width direction X using the reference position.

[0123] In addition, the initial position HP can be set to the position of the carriage 30 at the time when the carriage 30 is stopped by coming into contact with the side wall of the housing 3, or can be set to another position of the carriage 30 that has moved in the first direction from the stopped position.

[0124] In the printing process of the medium, the control section 80 causes the medium housed in the medium housing section 22 to be conveyed from the upstream side to the downstream side in the conveying direction that intersects the main scanning direction by driving the conveying mechanism 25. The conveying mechanism 25 conveys the medium on a not-illustrated platen on the lower side of the liquid ejecting section 50. The control section 80 causes the liquid ejecting section 50 to eject ink using the print data. Thereby, an image is recorded on a portion of the medium that opposes the liquid ejecting section 50. The control section 80 causes the medium on which printing has been performed to be discharged to the medium discharge tray by driving the conveying mechanism 25.

[0125] Method of detecting open / close state of supply flow path

[0126] In Figure 10 In the open position, the lever 62 is illustrated by a solid line, and in the closed position, the lever 62 is illustrated by a double dotted line. When the lever 62 is in the position of the solid line in Figure 10 When the lever 62 is in the position of the solid line in Figure 10 When the lever 62 is in the position of the double dotted line in

[0127] In Figure 10In the diagram, when the carriage 30 moves to the left in the width direction X from its initial position HP, the movement area TA of the lever 62 in the open position is surrounded by a dashed line. Furthermore, when the carriage 30 moves to the left in the width direction X from its initial position HP, the movement area TB of the lever 62 in the closed position is surrounded by a single-dotted line.

[0128] like Figure 10 As shown, when lever 62, in the open position (represented by the solid line in the figure), rotates 180° towards the front of the paper, as indicated by the double-dotted line, lever 62 moves to a closed position, displaced forward in the depth direction Y compared to the open position. Conversely, when lever 62, in the closed position (represented by the double-dotted line in the figure), rotates 180° towards the front of the paper, as indicated by the solid line, lever 62 moves to an open position, displaced backward in the depth direction Y compared to the closed position. In this way, the positions of lever 62 in the depth direction Y are different between the open and closed positions.

[0129] The rear end of frame 4 in the depth direction Y is located at the rear end of opening OA in the depth direction Y. The front end of frame 4 in the depth direction Y is located at the front end of opening OA in the depth direction Y. The extent of opening OA in the depth direction Y is defined by the rear end of frame 4 in the depth direction Y and the front end of frame 4 in the depth direction Y.

[0130] The first contact portion 100 is located at the front end of the frame 4 in the depth direction Y. The first contact portion 100 is provided on the housing 3. In a top view taken from above in the vertical direction Z, the first contact portion 100 is located on the front side in the depth direction Y compared to the moving area TA. In contrast, in a top view taken from above in the vertical direction Z, the first contact portion 100 overlaps with the moving area TB in the depth direction Y.

[0131] Here, when the lever 62 in the open position moves together with the carriage 30 from the initial position HP in the first direction, the lever 62 in the open position does not overlap with the first contact portion 100 when viewed from above. Furthermore, even when viewed from the side in the width direction X, the lever 62 in the open position and the first contact portion 100 are configured not to overlap.

[0132] As a result, in a case where the open-position lever 62 moves together with the carriage 30 from the initial position HP in the first direction, the open-position lever 62 does not interfere with the first contact portion 100 in the width direction X. That is, in a case where the open-position lever 62 moves together with the carriage 30 from the initial position HP in the first direction, the open-position lever 62 does not hinder the movement of the carriage 30. In other words, in a case where the carriage 30 moves while the supply flow path 40 is in the open state, the open-position lever 62 does not contact the first contact portion 100.

[0133] On the other hand, in a case where the close-position lever 62 moves together with the carriage 30 from the initial position HP in the first direction, the close-position lever 62 overlaps the first contact portion 100 in a plan view. In addition, even in a side view observed from the width direction X, the close-position lever 62 and the first contact portion 100 are configured to overlap each other.

[0134] As a result, in a case where the close-position lever 62 moves together with the carriage 30 from the initial position HP in the first direction, the close-position lever 62 interferes with the first contact portion 100 in the width direction X. That is, in a case where the close-position lever 62 moves together with the carriage 30 from the initial position HP in the first direction, the close-position lever 62 hinders the movement of the carriage 30. In other words, when the carriage 30 moves while the supply flow path 40 is in the closed state, the close-position lever 62 contacts the first contact portion 100.

[0135] In addition, even in a case where the supply flow path 40 is in the closed state, for example, it is preferable that the lever 62 contacts the first contact portion 100 when the operation angle Θ is 160° or more. Thus, even in a case where the supply flow path 40 is in the closed state, the movement of the carriage 30 is hindered in a case where the supply flow path 40 is in a state of being more closed.

[0136] In the present embodiment, the user, for example, stops the power supply of the liquid discharge apparatus 1 and changes the lever 62 from the open position to the close position, thereby performing the transport of the liquid discharge apparatus 1. When the power supply of the liquid discharge apparatus 1 is stopped, the carriage 30 moves to the initial position HP and stands by. When the transport of the liquid discharge apparatus 1 ends, the user changes the lever 62 from the close position to the open position and starts the power supply of the liquid discharge apparatus 1. When the power supply of the liquid discharge apparatus 1 starts, the control portion 80 moves the carriage 30 in the initial position HP in the first direction.

[0137] When the lever 62 is changed from the closed position to the open position by the user, or when the operation to the open position is insufficient, if the carriage 30 at the initial position HP moves in the first direction, the lever 62 at the closed position comes into contact with the first contact portion 100. As a result, the movement of the carriage 30 is hindered, and thus the driving load of the carriage motor 31 increases. Further, the detection portion 84 detects the case where the carriage motor 31 is in an overloading state, that is, the case where the movement of the carriage 30 is hindered and the first contact portion 100 comes into contact with the lever 62. When the detection portion 84 detects the contact of the lever 62 with the first contact portion 100, the control portion 80 determines that the supply flow path 40 is in the closed state.

[0138] When it is determined that the supply flow path 40 is in the closed state, the control portion 80 moves the carriage 30 in the second direction. That is, the control portion 80 moves the carriage 30 in the second direction opposite to the first direction, and thus returns the carriage 30 to the initial position HP, in the case where it is detected that the supply flow path 40 is in the closed state by the movement of the carriage 30 in the first direction. For the carriage 30 returned to the initial position HP, the contact of the lever 62 with the first contact portion 100 is released, and thus the carriage 30 and the opening and closing mechanism 60 are not subjected to the external force generated by the contact of the lever 62 with the first contact portion 100. As a result, the load of the operation to change the lever 62 from the closed position to the open position is reduced.

[0139] Further, when it is determined that the supply flow path 40 is in the closed state, the control portion 80 can temporarily stop the driving of the carriage motor 31, so as not to excessively apply the external force generated by the contact of the lever 62 with the first contact portion 100 to the carriage 30 and the opening and closing mechanism 60. In addition, the control portion 80 can input a signal for notifying the outside of the case where the supply flow path 40 is in the closed state, to the operation panel 6. At this time, the control portion 80 causes the operation panel 6 to display information based on the signal for notification, for example, an alarm indicating that the supply flow path 40 is in the closed state. The operation panel 6 functions as a notification portion for notifying the outside of the case where the supply flow path 40 is in the closed state.

[0140] Further, the notification portion for notifying the outside of the case where the supply flow path 40 is in the closed state can be a light such as a PATLITE (registered trademark) that blinks, and notifies the outside of the alarm that the supply flow path 40 is in the closed state by light. In addition, the notification portion for notifying the outside of the case where the supply flow path 40 is in the closed state can be, for example, a buzzer, and notifies the outside of the alarm that the supply flow path 40 is in the closed state by sound.

[0141] Further, the control section 80 moves the carriage 30 in the initial position HP in the first direction, and in a case where the carriage motor 31 is not in an overloading state, judges that the lever 62 is not in contact with the first contact section 100, and the supply flow path 40 is in an open state.

[0142] In this way, when the liquid ejection device 1 is powered on, the control section 80 moves the carriage 30, and judges whether the supply flow path 40 is in an open state or in a closed state.

[0143] Further, the first contact section 100 is provided at a position close to the initial position HP in the width direction X of the carriage 30, and at a right side in the width direction X of the frame 4. Further, the opening and closing mechanism 60 is provided at a left side in the width direction X of the carriage 30. Therefore, in a case where the supply flow path 40 is in a closed state, the contact of the first contact section 100 with the lever 62 can be detected early. Therefore, the throughput of the detection operation of the opening and closing state of the supply flow path 40 can be improved.

[0144] Further, the moving speed of the carriage 30 at the time of detecting the opening and closing state of the supply flow path 40 can also be set to be slower than the moving speed of the carriage 30 at the time of performing printing. Thereby, the case where the lever 62 and the first contact section 100 are subjected to a large impact at the time of the contact of the first contact section 100 with the lever 62 can be suppressed, and thereby, the case where the first contact section 100 is deformed can be suppressed.

[0145] The timing at which the control section 80 detects the opening and closing state of the supply flow path 40 will be described.

[0146] The timing at which the control section 80 detects the opening and closing state of the supply flow path 40 can be any one of a period from when the liquid ejection device 1 is powered on until ink is first discharged from the nozzle 51, a period from when the liquid ejection device 1 is powered on until the first cleaning is performed, and a period from when the liquid ejection device 1 is powered on until ink is ejected for the first printing.

[0147] Specifically, it can be any one of a period from when the liquid ejection device 1 is powered on until the first air ejection is performed by the liquid ejection section 50, a period from when the liquid ejection device 1 is powered on until the first cleaning is performed, and a period from when the liquid ejection device 1 is powered on until ink is ejected for the first printing. Further, in any one of the above timings, it can be configured such that the opening and closing state of the supply flow path 40 is detected when the carriage 30 is first moved in the first direction after the liquid ejection device 1 is powered on.

[0148] Other timings at which the opening and closing state of the supply flow path 40 is detected will be described.

[0149] The opening / closing detection section 85 detects the opening / closing operation of the scanner 5 while the liquid discharge apparatus 1 is powered on. When the scanner 5 is in the second position, the lever 62 is easily operated by the user. Also, in a state where the supply flow path 40 is set to the closed state, there is a possibility that the scanner 5 is disposed in the first position.

[0150] Therefore, it is preferable that the timing at which the control section 80 detects the opening / closing state of the supply flow path 40 is a period from the opening / closing operation of the scanner 5 in which the scanner 5 is opened once and closed to the initial discharge of ink from the nozzle 51 after the opening / closing operation, while the liquid discharge apparatus 1 is powered on.

[0151] Specifically, it is enough if it is any one of a period from the opening / closing operation of the scanner 5 to the initial discharge of ink by the initial cleaning after the opening / closing operation, a period from the opening / closing operation of the scanner 5 to the initial printing of ink after the opening / closing operation, and a period from the opening / closing operation of the scanner 5 to the initial printing of ink after the opening / closing operation, while the liquid discharge apparatus 1 is powered on. By performing the detection operation of the opening / closing state of the supply flow path 40 at such a timing, it is possible to suppress the case where the user starts printing directly in a state where the supply flow path 40 is closed.

[0152] As described above, the control section 80 can detect the opening / closing state of the supply flow path 40 by the contact of the opening / closing mechanism 60 and the first contact section 100. Such detection becomes an opportunity of a process of stopping the movement of the carriage 30 or a process of notifying the user to set the supply flow path 40 to the open state, and the like. Therefore, it is possible to suppress the case where the user forgets to set the supply flow path 40 to the open state, and it is possible to suppress the case where the supply flow path 40 is operated in the closed state.

[0153] The opening / closing mechanism 60, the housing 3, the carriage 30, the control section 80, and the operation panel 6, which are the structural elements for detecting the opening / closing state of the supply flow path 40, are structural elements for printing a medium by the liquid discharge apparatus 1. By flexibly using the structural elements for printing a medium by the liquid discharge apparatus 1, it is possible to detect the opening / closing state of the supply flow path 40. Therefore, it is not necessary to provide a new structural element for detecting the opening / closing state of the supply flow path 40, and it is possible to realize the cost reduction of the liquid discharge apparatus 1 compared to the case where a new structural element is necessary for detecting the opening / closing state of the supply flow path 40.

[0154] Structure of the limiting section

[0155] The limiting section will be described with reference to Figure 11 and Figure 12 . Figure 11A perspective view of the case where the displacement portion 91 provided to the restriction portion 90 is located in the allowable region. Figure 12 A perspective view of the case where the displacement portion 91 provided to the restriction portion 90 is located in the restriction region.

[0156] As shown in Figure 11 and Figure 12 , the liquid ejecting apparatus 1 is provided with a restriction portion 90 that restricts the movement of the lever 62. The restriction portion 90 is provided with a displacement portion 91 that is displaced in conjunction with the lever 62, and a second contact portion 200 that is provided to the case 3.

[0157] As shown in Figure 11 , the displacement portion 91 is integrated with the end portion 64E2 of the shaft portion 64. The displacement portion 91 has a tab shape that extends in the radial direction of the shaft portion 64 from the end portion 64E2. The displacement portion 91 is rotatable about the rotation axis A. The displacement portion 91 rotates in conjunction with the rotation of the lever 62 by the rotation of the shaft portion 64. In the present embodiment, the tip of the displacement portion 91 faces the front side when the lever 62 is in the open position. Also, when the lever 62 moves from the open position toward the closed position, the displacement portion 91 rotates such that the tip of the displacement portion 91 faces the lower side.

[0158] The second contact portion 200 is a portion of the case 3, and has a plate shape that extends in the width direction X. The second contact portion 200 is located on a portion of the case 3 in the width direction X. The second contact portion 200 overlaps the locus of the rotation of the displacement portion 91 when viewed in the width direction X.

[0159] The range in the movable range of the carriage 30 in which the displacement portion 91 and the second contact portion 200 face each other in the vertical direction Z is the restriction region. The range in the movable range of the carriage 30 in which the displacement portion 91 and the second contact portion 200 do not face each other in the vertical direction Z is the allowable region. The displacement portion 91 moves in the allowable region and the restriction region in conjunction with the movement of the carriage 30. The allowable region in the present embodiment is the home position HP, and the restriction region is the non-printing region RA2 and the printing region PA other than the home position HP.

[0160] In addition, in Figure 11 , the lever 62 is in the open position and the carriage 30 is in the allowable region. In Figure 12 , the lever 62 is in the open position and the carriage 30 is in the restriction region.

[0161] Here, when the lever 62 rotates while the carriage 30 is in the allowable region, the displacement portion 91 and the second contact portion 200 do not contact each other, and the displacement portion 91 rotates in conjunction with the rotation of the lever 62. That is, the second contact portion 200 allows the movement of the lever 62 between the open position and the closed position.

[0162] On the other hand, as shown in FIG. 6, when the carriage 30 is located in the restricted area, the tip of the displacement portion 91 comes into abutment with the second contact portion 200 from above when the lever 62 is rotated, and the rotation of the lever 62 is stopped in conjunction with the stop of the rotation of the displacement portion 91. That is, the second contact portion 200 restricts the movement of the lever 62 from the open position to the closed position. Figure 12

[0163] In addition, in order to move the lever 62 to the closed position, it is necessary to move the carriage 30 to the initial position HP. Thus, it is possible to suppress the case where the supply flow path 40 is set to the closed state by moving the lever 62 to the closed position while the carriage 30 is in the position where printing is possible. Therefore, for example, it is possible to avoid the case where printing is performed despite the state where ink is not supplied to the head due to the closure of the supply flow path 40.

[0164] Further, on the premise that the supply flow path 40 is set to the closed state, it is facilitated to move the carriage 30 to the initial position HP. For example, in the processing of inspecting the finished product, repairing, shipping, and the like of the liquid ejecting apparatus 1, which is accompanied by the arrangement of the carriage 30 at the initial position HP, the operation of setting the supply flow path 40 to the closed state is performed. Also, when the carriage 30 is located at a position other than the initial position HP, since the operation of setting the supply flow path 40 to the closed state is restricted, it is facilitated to move the carriage 30 to the initial position HP suitable for the processing in the processing accompanied by the operation of setting the supply flow path 40 to the closed state.

[0165] Hereinafter, the effects of the liquid ejecting apparatus 1 according to the present embodiment will be described.

[0166] (1) The interference of the first-position scanner 5 with the operation portion 60B causes the supply flow path 40 to avoid the transition state. Also, the interference of the first-position scanner 5 with the operation portion 60B can serve as an opportunity for the liquid ejecting apparatus 1 or the user to perform processing for avoiding the transition state. As a result, it is possible to suppress the case where the supply flow path 40 is continuously in the transition state.

[0167] (2) The interference of the first-position scanner 5 with the operation portion 60B causes the operation portion 60B to move to a position closer between the closed position and the open position. Therefore, it is possible to bring the operation portion 60B, which is more likely to be located in the closed position, closer to the closed position, and to bring the operation portion 60B, which is more likely to be located in the open position, closer to the open position. That is, it is possible to move the position of the operation portion 60B, which sets the supply flow path 40 to the transition state, toward the position where it is more likely to be located.

[0168] ​(3) It is possible to suppress the case where the operation section 60B originally stops at the transition position by the application of force. Further, it is possible to suppress the supply of ink, i.e., the consumption of ink without the user's intention, due to the stop of the operation section 60B that should be at the closed position at the transition position.

[0169] (4) The detection of the contact of the opening and closing mechanism 60 with the first contact section 100, for example, can become the opportunity to stop the movement of the carriage 30 or the opportunity to set the supply flow path 40 to the open state. As a result, it is possible to suppress the case where a mismatch occurs in the state of the supply flow path 40 and the state of the carriage 30.

[0170] (5) Since the operation to set the supply flow path 40 to the closed state is limited in the case where the carriage 30 is located at a position other than the initial position HP, as a prerequisite for setting the supply flow path 40 to the closed state, the case where the carriage 30 is moved to the initial position HP is promoted. That is, the case where the carriage 30 is moved to the initial position HP suitable for the processing accompanying the operation to set the supply flow path 40 to the closed state is promoted.

[0171] (6) The displacement section 91 is displaced in linkage with the operation section 60B, and thus the displacement section 91 restricts the movement of the operation section 60B to the direction to set the supply flow path 40 to the closed state. Therefore, compared with the case where the displacement section 91 that does not link with the operation section 60B is separately provided, it is possible to reduce the case where the user's operation becomes troublesome.

[0172] (7) Since the housing 3 is provided with the first contact section 100 and the second contact section 200, compared with the case where the first contact section 100 and the second contact section 200 are separately provided from the housing 3, it is possible to reduce the number of components.

[0173] (8) Even if the lever 62 is located at the position to set the supply flow path 40 to the transition state, it is possible to set the supply flow path 40 to either one of the closed state or the open state by the normal operation to move the scanner 5 to the first position.

[0174] The present embodiment can be implemented in the following manner. The present embodiment and the following modified examples can be implemented in combination with each other within a range where they are not technically contradictory.

[0175] • It can also be a structure in which the carriage 30 is provided with the first contact section 100, and the opening and closing mechanism 60 is fixed to the housing 3. In this structure, the first contact section 100 moves together with the carriage 30. The operation section 60B provided to the opening and closing mechanism 60 continues to be stationary together with the housing 3. Further, the operation section 60B to set the supply flow path 40 to the closed state contacts the first contact section 100 that moves together with the carriage 30.

[0176] • The first contact portion 100 can be changed to a cushioning material that can mitigate impact when coming into contact with the rod 62.

[0177] • The displacement portion 91 can be integral with the end portion 64E1 of the shaft portion 64, or can be a different component from the shaft portion 64.

[0178] • The moving portion can also be the printer cover, the carriage cover, the operation panel 6, the ink injection port cover, or the like.

[0179] • The liquid ejecting apparatus 1 can be a cartridge type or an ink injection type if it is a non-carriage loading type.

[0180] • The moving portion can also be configured to be able to drive a transmission mechanism that is different from the operation portion 60B, and to move the operation portion 60B by a driving force transmitted by the transmission mechanism.

[0181] • The opening and closing mechanism 60 can also be provided on the ink tank, the cartridge holder, the basket 3, the frame 4, or the like.

[0182] • The displacement portion 91 can be integrally configured with the operation portion 60B, or can be separately configured.

[0183] • The first contact portion 100 and the second contact portion 200 can also be configured by a component that is different from the basket 3. The component that is different from the basket 3 is, for example, a component that is mounted on the basket 3, the frame 4, or the like.

[0184] • The rod 62 can also be configured only by the base portion 62A without the top end portion 62B. In the structure in which the rod 62 does not have the top end portion 62B, the rib 5A of the scanner 5 interferes with the base portion 62A of the rod 62.

[0185] • The first contact portion 100 and the second contact portion 200 can also not be provided on the basket 3. In addition, in the case where the first contact portion 100 and the second contact portion 200 are provided on the basket 3, the number of components can be reduced compared to the case where the first contact portion 100 and the second contact portion 200 are provided independently of the basket 3, and thus the cost of the liquid ejecting apparatus 1 can be suppressed.

[0186] Hereinafter, the technical ideas understood from the above-described embodiments and modified examples and the effects thereof will be described.

[0187] Idea 1

[0188] A liquid discharge apparatus includes: a liquid storage portion that stores a liquid; a liquid discharge portion that discharges the liquid to a medium to perform printing; a supply flow path that communicates the liquid storage portion and the liquid discharge portion; an opening and closing mechanism that has an opening and closing portion that sets the supply flow path to an open state or a closed state, and an operation portion that operates the opening and closing portion; and a moving portion that is movable between a first position that is a normal position when the printing is performed, and a second position that is different from the first position, wherein a range of the operation portion in which the operation portion is movable to set the supply flow path to a transition state between the open state and the closed state includes a position of the operation portion at which the operation portion interferes with the moving portion in the first position.

[0189] According to the idea 1, the operation portion sets the supply flow path to the transition state when the operation portion interferes with the moving portion in the first position. The interference of the moving portion in the normal position with the operation portion can be an opportunity for the liquid discharge apparatus or a user to perform a process for avoiding the transition state. As a result, it is possible to suppress a case where the supply flow path is continuously in the transition state.

[0190] Idea 2

[0191] In the liquid discharge apparatus, the operation portion can be movable between an open position that sets the supply flow path to the open state, and a closed position that sets the supply flow path to the closed state, and the moving portion can move the operation portion closer to the closed position by interfering with the operation portion when the operation portion is located closer to the closed position than to the middle of the open position and the closed position, and can move the operation portion closer to the open position by interfering with the operation portion when the operation portion is located closer to the open position than to the middle of the open position and the closed position.

[0192] According to the idea 2, the operation portion is moved to a position closer to the closed position and the open position by the interference of the operation portion with the moving portion. Therefore, it is possible to move the operation portion that should be located in the closed position closer to the closed position, and it is possible to move the operation portion that should be located in the open position closer to the open position. That is, it is possible to move the position of the operation portion that sets the supply flow path to the transition state to a position where it should originally be located.

[0193] Idea 3

[0194] In the liquid discharge apparatus, the opening and closing mechanism can further include an urging member that urges the operation portion in a direction in which the supply flow path is set to the closed state.

[0195] According to Idea 3, it is possible to suppress the case where the operation portion originally stops at the transition position between the open position and the closed position by the application of force. Further, it is possible to suppress the liquid supply, i.e., the consumption of liquid without the user's intention, due to the operation portion that should be in the closed position stopping at the transition position.

[0196] Idea 4

[0197] In the liquid discharge apparatus, it is also possible to adopt the following manner, i.e., further provided with: a carriage that mounts the liquid discharge portion and the opening and closing mechanism, and is capable of reciprocating in a first direction and a second direction opposite to the first direction; a first contact portion that contacts the opening and closing mechanism in the case where the carriage is moved while the supply flow path is in the closed state; a detection portion that detects the contact of the opening and closing mechanism with the first contact portion.

[0198] According to Idea 4, it is possible to detect the case where the opening and closing mechanism contacts the first contact portion in the case where the carriage is moved while the supply flow path is in the closed state. The detection of the contact of the opening and closing mechanism with the first contact portion, for example, can become an opportunity to stop the movement of the carriage, or an opportunity to set the supply flow path to the open state. As a result, it is possible to suppress the case where a mismatch occurs in the state of the supply flow path and the state of the carriage.

[0199] Idea 5

[0200] In the liquid discharge apparatus, it is also possible to adopt the following manner, i.e., further provided with a restriction portion that restricts the movement of the operation portion in the direction of setting the supply flow path from the open state to the closed state in the case where the carriage is positioned at a position other than a predetermined position.

[0201] The operation of setting the supply flow path to the closed state, for example, is implemented in the process of inspecting the finished product, repairing, shipping, etc. of the liquid discharge apparatus, which is accompanied by the process of arranging the carriage at the predetermined position. According to the above-described Idea 5, since the operation of setting the supply flow path to the closed state is restricted in the case where the carriage is positioned at a position other than the predetermined position, as a prerequisite for setting the supply flow path to the closed state, the movement of the carriage to the predetermined position is promoted. That is, in the process accompanied by the operation of setting the supply flow path to the closed state, the movement of the carriage to the predetermined position suitable for the process is promoted.

[0202] Idea 6

[0203] In the liquid discharge apparatus, the following configuration can also be employed. The restriction portion includes a displacement portion that is displaced in linkage with the operation portion, and a second contact portion that is provided on a movement locus of the displacement portion in a case where the carriage is positioned at a position other than the predetermined position, and that comes into contact with the displacement portion when the operation portion is moved in a direction in which the supply flow path is set to the closed state, thereby restricting the movement of the operation portion.

[0204] According to Idea 6, in a case where the carriage is positioned at a position other than the predetermined position, the displacement portion is displaced in linkage with the operation portion, and the displacement portion restricts the movement of the operation portion in a direction in which the supply flow path is set to the closed state. Therefore, as compared with a case where a restriction portion that is not linked with the operation portion is separately provided, it is possible to reduce the case where the operation of the user becomes troublesome.

[0205] Idea 7

[0206] In the liquid discharge apparatus, the following configuration can also be employed. The first contact portion and the second contact portion are provided on a housing that accommodates the liquid discharge portion and the carriage.

[0207] According to Idea 7, as compared with a case where the first contact portion and the second contact portion are separately provided on the housing, it is possible to reduce the number of components, and thus it is possible to suppress the cost of the liquid discharge apparatus.

[0208] Idea 8

[0209] In the liquid discharge apparatus, the following configuration can also be employed. The operation portion includes a lever that is rotatable between an open position in which the supply flow path is set to the open state, and a closed position in which the supply flow path is set to the closed state, the opening / closing portion has a pressing member that sets the supply flow path to the closed state when the lever is positioned at the closed position, and sets the supply flow path to the open state when the lever is positioned at the open position, and the movement portion moves the lever in a manner that the lever approaches the closed position in a case where the lever is positioned closer to the closed position than to the middle between the open position and the closed position, and moves the lever in a manner that the lever approaches the open position in a case where the lever is positioned closer to the open position than to the middle between the open position and the closed position.

[0210] According to Idea 8, even if the lever is positioned at a position in which the supply flow path is set to the intermediate state, it is possible to move the lever to a position closer to either one of the closed position or the open position by the movement portion.

[0211] Explanation of Symbols

[0212] 1…liquid discharge apparatus; 2…apparatus main body; 3…housing; 4…frame; 5…scanner; 5A…rib; 6…operation panel; 7…display portion; 8…operation button; 10…liquid storage unit; 11…unit cover; 12…storage case; 13…liquid storage portion; 14…display portion; 22…medium storage portion; 25…transport mechanism; 30…carriage; 31…carriage motor; 32…carriage cover; 40…supply flow path; 50…liquid discharge portion; 51…nozzle; 55…maintenance unit; 60…opening and closing mechanism; 60A…opening and closing portion; 60B…operation portion; 60C…urging member; 62…lever; 62A…base portion; 62B…tip portion; 64…shaft portion; 64E1…end portion; 64E2…end portion; 65…cam portion; 65S…cam surface; 66…pressing member; 68…supply flow path support portion; 68E…latch portion; 68G…groove; 68H…recess; 69…case; 75…linear encoder; 76…optical sensor; 80…control portion; 81…CPU; 82…memory; 83…interface portion (I / F); 84…detection portion; 85…opening and closing detection portion; 90…limit portion; 91…displacement portion; 100…first contact portion; 110…personal computer (PC); 200…second contact portion; A…rotation axis; HP…initial position; L…reference line; OA…opening; PA…print region; RA…non-print region; RA1…non-print region; RA2…non-print region; TA…movement region; TB…movement region; θ…operation angle.

Claims

1. A liquid discharge apparatus characterized by comprising: Possessing: a liquid reservoir that stores a liquid; a liquid ejection section that ejects the liquid toward a medium to perform printing; a supply flow path that communicates the liquid reservoir and the liquid ejection section; an opening and closing mechanism that has a pressing section that sets the supply flow path to an open state or a closed state, and a lever section that moves the pressing section; a moving section that is movable between a first position that is a normal position when performing the printing, and a second position that is different from the first position, the lever section is movable between an open position that sets the supply flow path to the open state, and a closed position that sets the supply flow path to the closed state; in a state where the lever section is located closer to the open position than to the middle of the open position and the closed position, the tip of the lever section is lowered downward in conjunction with the moving section moving from the second position to the first position, thereby moving the lever section to the open position.

2. The liquid ejection apparatus according to claim 1, wherein in a state where the lever section is located closer to the open position than to the middle of the open position and the closed position, the tip of the lever section is pressed downward by the moving section moving from the second position to the first position, thereby moving the lever section to the open position.

3. The liquid ejection apparatus according to claim 2, wherein the moving section has a protruding section that protrudes downward from a lower surface of the moving section, the protruding section presses the tip of the lever section downward.

4. The liquid ejection apparatus according to claim 3, wherein the protruding section is located directly above the lever section in a state where the moving section is located at the first position.

5. The liquid ejection apparatus according to claim 3, wherein the moving section is able to be located at the first position when the protruding section no longer presses the tip of the lever section.

6. The liquid ejection apparatus according to claim 1, wherein the moving section is rotatable between the first position and the second position, the lever section is rotatable between the open position and the closed position.

7. The liquid ejection apparatus according to claim 1, wherein the opening and closing mechanism has a shaft section that has the lever section provided on an end portion, and a cam section that rotates in conjunction with the rotation of the shaft section and that is in contact with the pressing section.

8. The liquid ejection apparatus according to claim 1, further comprising: a housing that houses the liquid ejection section and the liquid reservoir, the housing has an opening in an upper portion, the moving section is a cover that covers the opening at the first position.

9. The liquid ejection apparatus according to any one of claims 1 to 5, further comprising: a housing that houses the liquid ejection section and the liquid reservoir, the housing has an opening in an upper portion, the moving section is a scanner that covers the opening at the first position.

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