JP2007283681A - Image-forming apparatus and liquid ejector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an image-forming apparatus and a liquid ejector which open and close the passage of a liquid container. <P>SOLUTION: A packing member 154 of an atmospheric air release mechanism 132 is fixed by compression against the end surface of an atmospheric air release part 152 with the central axis b of an opening 153 being shifted in a predetermined direction relative to the central axis a of an opening 151. The end 160a of a slide block 160 which presses a ball 156 from outside is formed in an inclined-surface shape and disposed with its central axis being in alignment with the central axis a of the opening 151. The extreme tip 160b of the slide block 160 is located in a direction opposite to the direction of the shift of the packing member 154. Thus, when the slide block 160 presses the ball 156, it starts abutting against the ball 156 at a position opposite to the direction of the shift of the packing member 154. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an image forming apparatus and a liquid discharge apparatus, and more particularly to an image forming apparatus and a liquid discharge head including a liquid container.

  As an image forming apparatus such as a printer, a facsimile machine, a copying machine, or a multifunction machine of these, for example, a liquid (e.g., a liquid ejecting apparatus) including a recording head composed of a liquid ejecting head for ejecting liquid droplets of a recording liquid (liquid) is used. Hereinafter, although it is also referred to as “paper”, the material is not limited, and a recording medium as a liquid (hereinafter, referred to as “recording medium”, “recording medium”, “transfer material”, “recording paper” and the like is also used synonymously). Some of them perform image formation (recording, printing, printing, and printing are also used synonymously) by attaching the ink to the paper.

  The image forming apparatus means an apparatus for forming an image by discharging a liquid onto a medium such as paper, thread, fiber, fabric, leather, metal, plastic, glass, wood, ceramics, etc. The term “not only” means not only giving an image having a meaning such as a character or a figure to a medium but also giving an image having no meaning such as a pattern to the medium. Further, the liquid is not limited to the recording liquid and ink, and is not particularly limited as long as it is a liquid capable of forming an image. Further, the liquid discharge device means a device that discharges liquid from the liquid discharge head.

In an image forming apparatus that includes such a liquid ejection device and forms an image, a head tank (also referred to as a sub-tank) that is a small-capacity liquid container that supplies a recording liquid to a recording head is mounted on a carriage. A large-capacity main cartridge (main tank) is installed on the main body of the apparatus, and the head tank is replenished and supplied with recording liquid (ink) from the main cartridge on the main body of the apparatus, or can be replaced with the recording head. An apparatus in which an ink cartridge which is a liquid container is mounted is known.
JP 2005-138472 A JP-A-2005-169664

  In these Patent Documents 1 and 2, it is described that an air release mechanism which is an on-off valve mechanism for opening the inside of the head tank to the atmosphere is provided.

Here, an example of the on-off valve mechanism having the problem to be solved by the present invention will be described with reference to FIG.
This open / close valve mechanism is formed with an atmosphere opening portion 502 in which an opening portion 501 constituting a communication path for communicating the inside and outside of the container body 500 is formed, and the opening portion 501 of the atmosphere opening portion 502 has an opening. A packing member 504 serving as a valve seat member having 503 is compressed and fixed by a holder member 505 mounted on the outer periphery of the atmosphere opening portion 502.

  A ball 506 as a valve body that opens and closes the opening 503 of the packing member 504 is detachably disposed in the opening 501, and the ball 506 is urged by a spring 507 in a direction to close the opening 503. .

  On the other hand, a pressing member 510 for pressing the valve body 506 from the outside is disposed outside the container main body 500 so that the pressing member 510 can be advanced and retracted. Further, the tip of the pressing member 510 is formed with an arc-shaped recess corresponding to the outer peripheral shape of the ball 506.

  However, in the mechanism having such a configuration, when the center axis of the packing member is aligned with the center axis of the opening, the packing member floats in the air. There is a high possibility that the center axis of the packing member is eccentric with respect to the center axis. In addition, when fixing with the holder member, the packing member may be eccentric when the compression fixing surfaces are not kept parallel to each other or when the pressure on the surfaces is not uniform during compression. .

  On the other hand, it is difficult to limit the pressing position and the pressing direction of the pressing member because a plurality of parts and members are interposed before the ball is pressed by the pressing member from the drive actuator member. Further, even when the positional relationship between the pressing member and the valve body is deviated, the valve body cannot be correctly pressed.

  Therefore, for example, as shown in FIG. 10, the center of the opening 503 of the packing member 504 is fixed eccentrically with respect to the center of the opening 501 (in the figure, eccentrically upward) as shown in FIG. As described above, when the ball 506 is pressed obliquely downward with the pressing member 510 inclined in the direction opposite to the eccentric direction of the packing member 504, the ball 506 is opposite to the eccentric direction of the packing member 504 (in FIG. Direction).

  Then, as shown in FIG. 12, when the pressing by the pressing member 510 is released after the pressing is completed, the ball 506 moves toward the opening 503 of the packing member 504 by the urging force of the spring 507. Since the lower portion 504a of the packing member 504 protrudes into the opening portion 501 by the core, the ball 506 is caught by the lower portion 504a of the packing member 504 protruding into the opening portion 501, and the opening 503 is closed. There is a risk that it will not be possible.

  As described above, the above-described on-off valve mechanism has a problem that a stable opening / closing operation cannot be performed.

  SUMMARY An advantage of some aspects of the invention is that it provides an image forming apparatus and a liquid ejection apparatus that can stably open and close a flow path of a liquid container.

  In order to solve the above problems, an image forming apparatus according to the present invention includes a valve seat member having an opening, which is attached to an opening for communicating the inside and outside of a container body, and the valve seat member. A liquid container having a valve body that can be arranged, and a pushable member that presses the valve body of the liquid container, and the valve seat member of the liquid container has a center of the opening with respect to the center of the opening. The pressing member is configured to start contact with the valve body at a position opposite to the displacement direction of the valve seat member when pressing the valve body.

  Here, it is preferable that the tip portion of the pressing member that contacts the valve body is formed in a slope shape, and the most distal end is located in a direction opposite to the displacement direction of the valve seat member. Moreover, the opening of the valve seat member can be configured to have a straight cross-sectional shape, and the valve seat member can be configured to be formed of an elastic member such as silicone rubber. Moreover, it can be set as the structure provided with the holder member which fixes and hold | maintains a valve seat member in an opening part.

  A liquid discharge apparatus according to the present invention includes a liquid discharge head for discharging liquid, a valve seat member having an opening attached to an opening for communicating the inside and outside of a container body, and a contact with the valve seat member. A liquid container for supplying a liquid to the liquid discharge head, and a forward and backward pressing member for pressing the valve body of the liquid container, and a valve seat member for the liquid container The center of the opening is mounted with a deviation from the center of the opening, and when the pressure member presses the valve body, it starts to contact the valve body at a position opposite to the direction of displacement of the valve seat member. It was set as the structure to do.

  According to the image forming apparatus according to the present invention and the liquid ejection apparatus according to the present invention, a valve seat member having an opening attached to an opening for communicating the inside and outside of the container body, and the valve seat member A liquid container having a valve body arranged so as to be able to contact and separate, and a pressing member capable of moving back and forth to press the valve body of the liquid container, and the center of the opening of the valve seat member of the liquid container is the center of the opening The pressing member is configured to start contact with the valve body at a position opposite to the displacement direction of the valve seat member when pressing the valve body. When pressed, the valve body receives a force in the direction of displacement of the valve seat member. When the pressure is released, the valve body reliably contacts the opening of the valve seat member to perform a stable opening / closing operation. be able to.

Embodiments of the present invention will be described below with reference to the accompanying drawings. First, an example of an image forming apparatus according to the present invention will be described with reference to FIGS. FIG. 1 is an explanatory side view for explaining the overall configuration of the image forming apparatus, and FIG. 2 is an explanatory plan view of a main part of the apparatus.
This image forming apparatus is a serial type image forming apparatus, and a carriage 33 is slidable in the main scanning direction by main and slave guide rods 31 and 32 which are guide members horizontally mounted on the left and right side plates 21A and 21B of the apparatus main body 1. It is held and moved and scanned in the direction indicated by the arrow (carriage main scanning direction) in FIG. 2 via a timing belt by a main scanning motor (not shown).

  The carriage 33 is provided with recording heads 34a and 34b (which are liquid ejection heads according to the present invention for ejecting ink droplets of yellow (Y), cyan (C), magenta (M), and black (K). When not distinguished, it is referred to as “recording head 34”). A nozzle row composed of a plurality of nozzles is arranged in the sub-scanning direction orthogonal to the main scanning direction, and is mounted with the ink droplet ejection direction facing downward.

  Each of the recording heads 34 has two nozzle rows. One nozzle row of the recording head 34a has black (K) droplets, the other nozzle row has cyan (C) droplets, and the recording head 34b has one nozzle row. One nozzle row ejects magenta (M) droplets, and the other nozzle row ejects yellow (Y) droplets.

  Further, the carriage 33 is equipped with head tanks 35a and 35b (referred to as “head tank 35” when not distinguished) for supplying ink of each color corresponding to the nozzle rows of the recording head 34. The head tank 35 includes recording liquid cartridges 10y, 10m, 10c, and 10k that are detachably attached to the cartridge loading unit 4 and supply recording liquids of the respective colors via the supply tubes 36 of the respective colors by the supply pump unit 5. Is replenished.

  On the other hand, as a paper feeding unit for feeding the papers 42 stacked on the paper stacking unit (pressure plate) 41 of the paper feeding tray 2, a half-moon roller (feeding) that separates and feeds the papers 42 one by one from the paper stacking unit 41. A separation pad 44 made of a material having a large friction coefficient is provided facing the paper roller 43) and the paper feed roller 43, and the separation pad 44 is urged toward the paper feed roller 43 side.

  In order to feed the paper 42 fed from the paper feeding unit to the lower side of the recording head 34, a guide member 45 for guiding the paper 42, a counter roller 46, a transport guide member 47, and a tip pressure roller. And a holding belt 48 which is a conveying means for electrostatically attracting the fed paper 42 and conveying it at a position facing the recording head 34.

  The transport belt 51 is an endless belt, and is configured to wrap around the transport roller 52 and the tension roller 53 and circulate in the belt transport direction (sub-scanning direction). Further, a charging roller 56 that is a charging unit for charging the surface of the transport belt 51 is provided. The charging roller 56 is disposed so as to come into contact with the surface layer of the transport belt 51 and to rotate following the rotation of the transport belt 51. The transport belt 51 rotates in the belt transport direction of FIG. 2 when the transport roller 52 is rotationally driven through timing by a sub-scanning motor (not shown).

  Further, as a paper discharge unit for discharging the paper 42 recorded by the recording head 34, a separation claw 61 for separating the paper 42 from the conveying belt 51, a paper discharge roller 62, and a spur 63 that is a paper discharge roller. And a paper discharge tray 3 below the paper discharge roller 62.

  A duplex unit 71 is detachably mounted on the back surface of the apparatus body 1. The duplex unit 71 takes in the paper 42 returned by the reverse rotation of the conveyance belt 51, reverses it, and feeds it again between the counter roller 46 and the conveyance belt 51. The upper surface of the duplex unit 71 is a manual feed tray 72.

  Further, as shown in FIG. 2, a maintenance / recovery mechanism 81 including a recovery means for maintaining and recovering the nozzle state of the recording head 34 is disposed in the non-printing area on one side of the carriage 33 in the scanning direction. Yes.

  The maintenance / recovery mechanism 81 includes cap members (hereinafter referred to as “caps”) 82a and 82b (hereinafter referred to as “caps 282” when not distinguished) for capping each nozzle surface of the recording head 34, and nozzle surfaces. A wiper blade 83 that is a blade member for wiping the ink, and an empty discharge receiver 84 that receives liquid droplets when performing empty discharge for discharging liquid droplets that do not contribute to recording in order to discharge the thickened recording liquid. ing.

  In addition, as shown in FIG. 2, in the non-printing area on the other side in the scanning direction of the carriage 33, idle discharge is performed to discharge liquid droplets that do not contribute to recording in order to discharge the recording liquid thickened during recording or the like. A recovery unit (empty discharge receiver) 88, which is a liquid recovery container for receiving liquid droplets at that time, is arranged, and this empty discharge receiver 88 is provided with an opening 89 along the nozzle row direction of the recording head 34 and the like.

  In this image forming apparatus configured as described above, the sheets 42 are separated and fed one by one from the sheet feed tray 2, and the sheet 42 fed substantially vertically upward is guided by the guide 45, and includes the transport belt 51 and the counter. It is sandwiched between the rollers 46 and conveyed, and the leading end is guided by the conveying guide 37 and pressed against the conveying belt 51 by the leading end pressing roller 49, and the conveying direction is changed by approximately 90 °.

  At this time, a positive output and a negative output are alternately repeated with respect to the charging roller 56, that is, an alternating voltage is applied, and a charging voltage pattern in which the conveying belt 51 alternates, that is, in a sub-scanning direction that is a circumferential direction. , Plus and minus are alternately charged in a band shape with a predetermined width. When the paper 42 is fed onto the conveyance belt 51 charged alternately with plus and minus, the paper 42 is attracted to the conveyance belt 51, and the paper 42 is conveyed in the sub-scanning direction by the circular movement of the conveyance belt 51.

  Therefore, by driving the recording head 34 according to the image signal while moving the carriage 33, ink droplets are ejected onto the stopped paper 42 to record one line, and after the paper 42 is conveyed by a predetermined amount, Record the next line. Upon receiving a recording end signal or a signal that the trailing edge of the paper 42 has reached the recording area, the recording operation is finished and the paper 42 is discharged onto the paper discharge tray 3.

  Next, an example of the head tank 35 will be described with reference to FIGS. 3 is an external perspective view of the head tank, FIG. 4 is an exploded perspective view of the head tank, FIG. 5 is a schematic side view of the head tank, and FIG. 6 is a line AA in FIG. It is a schematic sectional explanatory drawing which follows. Here, in order to simplify the drawing, a description will be given of a head tank configuration in the case where the recording head 34 ejects one color droplet. When two color droplets are ejected as in the image forming apparatus described above, two head tanks are integrally formed.

  The head tank 35 has the flexibility to seal the opening (one surface of the head tank 35) of the ink storage unit 100 to the container main body (case main body) 101 that forms the ink storage unit 100 that stores the ink that is the recording liquid. A film-like member (flexible film-like member) 102 is attached by adhesion or welding, and the film-like member 102 is disposed outwardly between the case main body 101 and the film-like member 102 inside the ink containing portion 100. A spring 103, which is an elastic member for biasing, is provided.

  Furthermore, a bulging portion 102a having a convex shape corresponding to the spring 103 is formed on the film-like member 102, and a reinforcing member 104 is attached to the outer surface thereof. A detection lever 106 that is displaced according to the displacement of the film-like member 102 is swingably attached to support portions 107 and 107 provided on the side of the case 101.

  In addition, the case 101 is provided with an ink introduction path 111 for replenishing ink in the ink containing part 100, and a connecting means for connecting the ink introduction path 111 and the supply tube 36 connected to the ink cartridge 10. 112 can be detachably mounted.

  Further, a connecting member 113 for supplying ink from the ink storage unit 100 to the recording head 34 is attached to the lower part of the case 101, and an ink supply path 114 of the recording head 34 is formed in the connecting member 113, so A filter 115 is interposed between the two.

  In addition, an air flow path 121 for discharging air from the ink containing portion 100 is formed in the upper portion of the case 101. The air flow path 121 includes an inlet flow path portion 122 whose opening faces the ink containing portion 100 and a flow path portion 123 following the inlet flow path portion 122, and an air opening hole 131 provided in the case 101 on the downstream side. In addition, an accumulation portion 126 is continuously formed in a portion that is lower than the atmosphere opening hole 131 in the use state.

  By opening and closing the atmosphere release hole 131, the inside of the head tank 35 is hermetically sealed, or an atmosphere release valve mechanism 132 that is an atmosphere release means for switching the atmosphere release state through the atmosphere release hole 131 in the head tank 35 is provided. Provided.

  In addition, two detections for detecting that the amount of gas (air) in the head tank 35 has become a predetermined amount or more (or that the remaining amount of ink has become a predetermined amount or less) are provided above the case 101. Electrodes 141 and 142 are attached. The amount of gas (or the amount of ink) is changed by changing the conduction state between the detection electrodes 141 and 142 in a state where both the detection electrodes 141 and 142 are immersed in ink and in a state where at least one of the detection electrodes 141 and 142 is not immersed in ink. ) Can be detected.

  Therefore, an atmosphere release mechanism 132 as an on-off valve mechanism in the head tank 35 will be described with reference to FIG. FIG. 7 is an explanatory cross-sectional view illustrating details of the atmosphere release mechanism 132.

  The container body 101 is integrally formed with an atmosphere opening portion 152 having an opening portion 151 communicating with the atmosphere opening hole 131, and the atmosphere opening portion 152 has a straight cross-sectional shape (not limited thereto). The packing member 154 that is a valve seat member in which the opening 153 is formed is compressed and fixed by the holder member 135 and held. A spherical ball 156 as a valve body (contact / separation member) is disposed in the opening 151 so as to be able to contact and separate from the packing member 153, and the ball 156 is closed in a direction to close the opening 153 of the packing member 154 by a spring 157. Energized.

  Here, the center (center axis b) of the opening 153 of the packing member 154 is shifted (eccentric) in a predetermined direction with respect to the center (center axis a) of the opening 151, and the holder 135 causes the opening of the atmosphere opening portion 152. It is compressed and fixed between the tip surface. As a result, the portion of the packing member 154 opposite to the eccentric direction (displacement direction) becomes a protruding portion 154 a that protrudes into the opening 151.

  On the other hand, in order to open and close the air release mechanism 132, a slider 160 is disposed on the apparatus main body 1 side as a pressing member that presses the ball 156 from outside. A drive actuator unit 162 is provided to move the slider 160 forward and backward. The drive actuator unit 162 includes a plunger 161 that is pushed out by a driving unit such as a solenoid (not shown). The plunger 161 is a frame 163 of the actuator unit 162. Is urged to the retracted position by a return spring 164 interposed therebetween.

  Here, in the slider 160, the tip 160a that contacts the ball 156 is formed in a slope shape, the center axis thereof is aligned with the center axis a of the opening 151, and the leading edge 160b of the slider 160 is aligned with the displacement direction of the packing member 154. Since the slider 160 presses the ball 156, the slider 160 starts to contact the ball 156 at a position opposite to the displacement direction of the packing member 154.

  The packing member 154 is preferably made of rubber in order to improve the adhesion with the ball 156. Under normal circumstances, the recording liquid is not immersed in the opening 151, but the environment resistance and resistance to resistance are improved. Silicone rubber having excellent ink properties is particularly preferred. Further, the shape of the packing member 154 needs to correspond to the shape of the valve body (here, spherical), and is preferably a ring shape, which makes it possible to eliminate the directionality during valve function and assembly. In addition, it is possible to improve the reliability of the function and the reliability of the product assembly, and further reduce the cost by improving the yield. The slider 160 is preferably formed of plastic because it can be manufactured at a low cost, but may be formed of metal or the like.

  The ball 156 has a spherical shape to improve functional reliability. The ball 156 is made of a metal material because it is difficult to easily obtain a highly accurate sphere shape by plastic burrs or the like. However, the material is not limited to metal, but may be ceramics or the like, and plastic may be used as long as problems such as an increase in process and cost can be overcome.

  Moreover, although the front-end | tip part 160a of the slider 160 is formed in the slope shape, it may be formed in R shape and is not specifically limited. The material of the slider 160 is preferably plastic because it can be manufactured at low cost, but may be metal or the like, and is not particularly limited.

The operation of the atmosphere opening mechanism 132 configured as described above will be described with reference to FIGS.
When the driving actuator 162 is driven to push the slider 160 and push the slider 160 (drive) to bring the atmosphere release mechanism 132 into the open state, the slider 160 is inclined obliquely downward as shown in FIG. It may advance in the direction of arrow A.

  At this time, the tip 160a of the slider 160 is formed in a slope shape, and the tip 160b of the slider 160 starts to contact the ball 156 at a position opposite to the direction in which the packing member 154 is displaced. In response to the force in the direction B, the packing member 154 is pushed toward the back of the opening 151 while being pushed in the same direction as the displacement direction of the opening 151 with respect to the opening 151.

  As a result, the opening 153 of the packing member 154 is opened, and the atmosphere opening hole 131 is opened to the atmosphere through the opening 151.

  When the plunger 161 is retracted as shown in FIG. 9 to close the atmosphere release mechanism 132 after the required operation is completed, the ball 156 is pushed toward the packing member 154 by the restoring force of the spring 157. Since 156 was pushed in the same direction as the displacement direction of the packing member 154 (FIG. 8), the ball 156 moved back in the direction indicated by the arrow C in that state and moved to a position where the opening 153 of the packing member 154 was closed. It is surely returned and is not caught by the protruding portion 154a protruding from the opening 151 of the packing member 154. Thereby, the opening / closing operation | movement of the air release mechanism 132 is stabilized. Further, since the ball 156 reliably returns to the state of closing the opening 153 of the packing member 154, the opening 153 can be reliably opened and closed even if the opening 153 of the packing member 154 has a straight cross-sectional shape.

  Thus, the valve seat member of the liquid container is mounted with the center of the opening being shifted with respect to the center of the opening, and the pressing member is in a direction opposite to the direction of displacement of the valve seat member when pressing the valve body. The valve body is pressed while moving in the same direction as the displacement direction of the valve seat member even when the pressing member presses the valve body diagonally. Thus, it is possible to return to the state where the opening of the valve seat member is reliably closed at the time of restoration, and a stable opening / closing operation can be performed.

  The image forming apparatus according to the present invention is not limited to a printer having a single function configuration, and may be an image forming apparatus having a composite function such as a printer / facsimile / copying. It may be applied to a forming apparatus. Further, the configuration of the liquid container is not limited to the above embodiment, and the configuration may be any configuration as long as it includes an on-off valve mechanism. Furthermore, the on-off valve mechanism in the present invention is not limited to the one mounted on the liquid container, and can be applied to all uses used as other on-off valves.

1 is a schematic side view illustrating an overall configuration of a mechanism unit of an image forming apparatus including a liquid ejection apparatus according to the present invention. It is principal part plane explanatory drawing of the mechanism part. It is a perspective explanatory view of a head part for explanation of an example of a liquid container (head tank) of the same device. It is an exploded perspective view similarly. It is a typical side surface explanatory drawing similarly. FIG. 6 is a cross-sectional explanatory view taken along AA in FIG. It is an expanded sectional explanatory view used for description of the atmosphere release mechanism of the head tank. It is sectional explanatory drawing with which it uses for operation | movement description of the same atmospheric release mechanism. It is a cross-sectional explanatory drawing similarly. It is sectional explanatory drawing which shows an example of the on-off valve mechanism which this invention tends to solve a subject. It is sectional explanatory drawing with which it uses for operation | movement description of the on-off valve mechanism. It is a cross-sectional explanatory drawing similarly.

Explanation of symbols

33 ... Carriage 34 ... Recording head (liquid ejection head)
35 ... Head tank (liquid container)
131 ... Air release hole 132 ... Air release mechanism 151 ... Opening 152 ... Air release 153 ... Opening 154 ... Packing member (valve seat member)
155 ... Holder member 156 ... Ball (valve)
157 ... Spring 160 ... Slider (pressing member)

Claims (8)

A liquid container having a valve seat member having an opening attached to an opening for communicating the inside and outside of the container main body, and a valve body disposed so as to be able to contact and separate from the valve seat member;
A pressing member capable of moving back and forth to press the valve body of the liquid container,
The valve seat member of the liquid container is mounted with the center of the opening shifted from the center of the opening,
The image forming apparatus according to claim 1, wherein when the pressing member presses the valve body, the pressing member starts contact with the valve body at a position opposite to a displacement direction of the valve seat member.   2. The image forming apparatus according to claim 1, wherein a tip portion of the pressing member that contacts the valve body is formed in a slope shape, and a leading edge is located in a direction opposite to a displacement direction of the valve seat member. Image forming apparatus.   3. The image forming apparatus according to claim 1, wherein the opening of the valve seat member has a straight cross-sectional shape.   4. The image forming apparatus according to claim 1, wherein the valve seat member is formed of an elastic member.   5. The image forming apparatus according to claim 4, wherein the valve seat member is made of silicone rubber.   6. The image forming apparatus according to claim 1, further comprising a holder member for fixing and holding the valve seat member in the opening. A liquid discharge head for discharging liquid;
A valve seat member having an opening, which is attached to an opening for communicating the inside and outside of the container body, and a valve body disposed so as to be able to contact and separate from the valve seat member; A liquid container for supplying liquid;
A pressing member capable of moving back and forth to press the valve body of the liquid container,
The valve seat member of the liquid container is mounted with the center of the opening shifted from the center of the opening,
The liquid ejecting apparatus according to claim 1, wherein when the pressing member presses the valve body, the pressing member starts contact with the valve body at a position opposite to a displacement direction of the valve seat member. A liquid discharge head for discharging liquid;
A valve seat member having an opening, which is attached to an opening for communicating the inside and outside of the container body, and a valve body disposed so as to be able to contact and separate from the valve seat member; A liquid container for supplying liquid;
A pressing member capable of moving back and forth to press the valve body of the liquid container,
The valve seat member of the liquid container is mounted with the center of the opening shifted from the center of the opening,
The liquid ejecting apparatus according to claim 1, wherein when the pressing member presses the valve body, the pressing member starts contact with the valve body at a position opposite to a displacement direction of the valve seat member.

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