JP2019111705A - Liquid jet device - Google Patents

Liquid jet device Download PDF

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JP2019111705A
JP2019111705A JP2017245973A JP2017245973A JP2019111705A JP 2019111705 A JP2019111705 A JP 2019111705A JP 2017245973 A JP2017245973 A JP 2017245973A JP 2017245973 A JP2017245973 A JP 2017245973A JP 2019111705 A JP2019111705 A JP 2019111705A
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contact portion
opening surface
pressing member
wiping
ink
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怜 中山
Rei Nakayama
怜 中山
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Seiko Epson Corp
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Seiko Epson Corp
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Abstract

To properly wipe out ink adhering to a contact part of a cap in which a closed space where a nozzle opens can be formed.SOLUTION: A liquid jet device comprises: a liquid jet head 13 having an opening surface 27 where a nozzle 12 for jetting ink opens; a cap 22 in which a closed space where the nozzle 12 opens by contact of a contact part 35 with the opening surface 27 can be formed; a wiper 28 that can absorb ink adhering to the opening surface 27 and the contact part 35 by moving in an X-direction relatively to the liquid jet head 13; and a first pressing member 31 that presses the wiper 28 against a contact part 35 side. The contact part 35 has a first contact part 51 and a second contact part 52 arranged in a Y-direction crossing the X-direction, where a length in the Y-direction of the first pressing member 31 is shorter than an interval between the first contact part 51 and the second contact part 52.SELECTED DRAWING: Figure 4

Description

本発明は、液体噴射装置に関する。   The present invention relates to a liquid ejecting apparatus.

従来、媒体に画像を記録する記録装置（液体噴射装置）は、記録ヘッドのノズル形成面に付着した汚れ（例えば、インク）を拭き取る払拭部材（払拭部）を備えている。
例えば、特許文献１に記載の記録装置は、記録ヘッドと、記録ヘッドと対向した位置にある封止部と、クリーニングユニットとを備えている。記録ヘッドは、封止部と対向する側にインクを噴射（吐出）するノズルが形成されたノズル形成面を有している。封止部は、ノズル形成面側に突出する額縁形状の接触部と、接触部の内側に配置される封止面とを有する。接触部が記録ヘッドのノズル形成面に接触することで、記録ヘッドのノズル形成面が封止部によって封止され、記録ヘッドにおけるインクの乾燥が抑制される。 Conventionally, a recording apparatus (liquid ejecting apparatus) that records an image on a medium includes a wiping member (a wiping unit) that wipes off dirt (for example, ink) adhering to the nozzle formation surface of the recording head.
For example, the recording apparatus described in Patent Document 1 includes a recording head, a sealing unit at a position facing the recording head, and a cleaning unit. The recording head has a nozzle forming surface on which a nozzle for ejecting (discharging) ink is formed on the side facing the sealing portion. The sealing portion has a frame-shaped contact portion protruding toward the nozzle forming surface, and a sealing surface disposed inside the contact portion. The contact portion contacts the nozzle formation surface of the recording head, whereby the nozzle formation surface of the recording head is sealed by the sealing portion, and the drying of the ink in the recording head is suppressed.

クリーニングユニットは、記録ヘッドのノズル形成面側を払拭する第１払拭部と、封止部の封止面側を払拭する第２払拭部とを備えている。第１払拭部が第１押圧手段によって記録ヘッド側に押圧され、及び第２払拭部が第２押圧手段によって封止部側に押圧された状態で、クリーニングユニットが移動することによって、第１払拭部及び第２払拭部は、記録ヘッドに付着した汚れ、及び封止部に付着した汚れの少なくとも一方を拭き取る。   The cleaning unit includes a first wiping unit that wipes the nozzle formation surface side of the recording head, and a second wiping unit that wipes the sealing surface side of the sealing unit. The first wiping unit is moved by moving the cleaning unit in a state where the first wiping unit is pressed toward the recording head by the first pressing unit, and the second wiping unit is pressed toward the sealing unit by the second pressing unit. The part and the second wiping part wipe off at least one of the stain attached to the recording head and the stain attached to the sealing part.

特開２０１５−１７１８２１号公報JP, 2015-171821, A

特許文献１に記載の記録装置では、封止部における接触部は、封止面側からノズル形成面側に向けて突出する凸部であり、第２押圧手段によって第２払拭部が封止部側に押圧された状態では、第２払拭部は封止部（凸部）の全体に接触することが難しい。このため、第２払拭部が封止部側に押圧された状態でクリーニングユニットが移動すると、第２払拭部は、接触部に付着したインクの全体を適正に拭き取ることが難しく、接触部にインクが残存するおそれがあった。さらに、接触部に残存するインクは、記録ヘッドを介して媒体に転写され、媒体が汚染され、媒体に形成される画像の品位が低下するおそれがあった。   In the recording device described in Patent Document 1, the contact portion in the sealing portion is a convex portion that protrudes from the sealing surface side toward the nozzle forming surface side, and the second wiping portion is the sealing portion by the second pressing unit. In the state of being pressed to the side, it is difficult for the second wiping portion to contact the entire sealing portion (convex portion). For this reason, if the cleaning unit moves in a state where the second wiping unit is pressed to the sealing unit side, it is difficult for the second wiping unit to properly wipe the whole of the ink attached to the contact unit, and Was likely to remain. Furthermore, the ink remaining in the contact portion may be transferred to the medium via the recording head, which may contaminate the medium and degrade the quality of the image formed on the medium.

本発明は、上述の課題の少なくとも一部を解決するためになされたものであり、以下の形態または適用例として実現することが可能である。   The present invention has been made to solve at least a part of the above-described problems, and can be realized as the following modes or application examples.

［適用例１］本適用例に係る液体噴射装置は、液体を噴射するノズルが開口する開口面を有する液体噴射ヘッドと、前記開口面に接触部が接触することで前記ノズルが開口する閉空間を形成可能な閉空間形成部材と、前記液体噴射ヘッドに対して払拭方向に相対移動して、前記開口面および前記接触部に付着した前記液体を吸収可能な払拭部材と、前記払拭部材を前記接触部側に押圧する第１押圧部材と、を備え、前記接触部は、前記払拭方向に交差する幅方向に沿って配置される第１接触部と第２接触部とを有し、前記第１押圧部材の前記幅方向の長さは、前記第１接触部と前記第２接触部との間隔よりも短いことを特徴とする。   Application Example 1 In the liquid ejecting apparatus according to this application example, a liquid ejecting head having an opening surface in which a nozzle for ejecting liquid is opened, and a closed space in which the nozzle is opened by contact with the opening surface. And a wiping member capable of absorbing the liquid attached to the opening surface and the contact portion by moving relative to the liquid jet head in the wiping direction, and the wiping member. A first pressing member for pressing to the contact portion side, the contact portion having a first contact portion and a second contact portion arranged along a width direction intersecting the wiping direction, The length in the width direction of the pressing member may be shorter than the distance between the first contact portion and the second contact portion.

接触部（第１接触部、第２接触部）は、開口面側に張り出した凸部であり、液体噴射ヘッドの開口面に接触することで、閉空間形成部材は、ノズルが開口する閉空間を形成する（ノズルが開口する開口面を封止する）。
仮に、第１押圧部材の幅方向の長さが、第１接触部と第２接触部との間隔よりも長く、第１押圧部材が第１接触部及び第２接触部に跨って配置される場合、第１押圧部材によって接触部側に押圧される払拭部材は、接触部の形状に追従して変形して接触部の全体に接触することが難しい。この状態で払拭部材が払拭方向に相対移動すると、払拭部材は、接触部に付着した液体（インク）の全体を適正に吸収することが難しく、接触部にインクが残存しやすくなる。 The contact portion (the first contact portion, the second contact portion) is a convex portion that protrudes to the opening surface side, and by contacting the opening surface of the liquid jet head, the closed space forming member is a closed space where the nozzle opens (Seal the opening surface where the nozzle opens).
Temporarily, the length of the first pressing member in the width direction is longer than the distance between the first contact portion and the second contact portion, and the first pressing member is disposed across the first contact portion and the second contact portion. In this case, it is difficult for the wiping member pressed toward the contact portion by the first pressing member to deform following the shape of the contact portion and to contact the entire contact portion. When the wiping member relatively moves in the wiping direction in this state, it is difficult for the wiping member to properly absorb the entire liquid (ink) attached to the contact portion, and the ink tends to remain in the contact portion.

第１押圧部材の幅方向の長さが、第１接触部と第２接触部との間隔よりも短く、第１押圧部材が第１接触部と第２接触部との間に配置される場合、第１押圧部材によって接触部側に押圧される払拭部材は、接触部の形状に追従して変形し、接触部の全体に接触するようになる。この状態で払拭部材が払拭方向に相対移動すると、払拭部材は、接触部に付着した液体（インク）の全体を適正に吸収しやすくなり、接触部にインクが残存しにくくなる。
従って、本適用例では、接触部にインクが残存しにくくなる。加えて、接触部にインクが残存しにくいので、接触部に残存するインクが媒体を汚染し、媒体に形成される画像の品位が低下するおそれを抑制することができる。 When the length in the width direction of the first pressing member is shorter than the distance between the first contact portion and the second contact portion, and the first pressing member is disposed between the first contact portion and the second contact portion The wiping member pressed toward the contact portion by the first pressing member deforms following the shape of the contact portion and comes in contact with the entire contact portion. When the wiping member relatively moves in the wiping direction in this state, the wiping member can easily absorb the entire liquid (ink) attached to the contact portion properly, and the ink hardly remains in the contact portion.
Therefore, in the present application example, the ink hardly remains in the contact portion. In addition, since the ink does not easily remain in the contact portion, it is possible to suppress the possibility that the ink remaining in the contact portion contaminates the medium and the quality of the image formed on the medium is degraded.

［適用例２］上記適用例に記載の液体噴射装置では、前記払拭部材を前記開口面側に押圧する第２押圧部材を備え、前記第２押圧部材の前記幅方向の長さは、前記開口面の前記幅方向の長さよりも長いことが好ましい。   Application Example 2 The liquid ejecting apparatus according to the application example may further include a second pressing member that presses the wiping member toward the opening surface, and the length in the width direction of the second pressing member may be the opening. Preferably, the length is longer than the length in the width direction of the surface.

幅方向は、払拭方向と交差する方向である。
仮に、第２押圧部材の幅方向の長さが、開口面の幅方向の長さよりも短い場合、第２押圧部材によって開口面側に押圧される払拭部材は、幅方向に沿って、開口面の全体に接触することが難しく、開口面の一部に接触する。すると、払拭部材の払拭方向への１回の相対移動によって、払拭部材は開口面の全体を払拭することが難しく、払拭部材の払拭方向への複数回の相対移動によって、払拭部材は開口面の全体を払拭することになる。このため、払拭部材が開口面に付着したインクの全体を適正に吸収するためには、払拭部材の払拭方向へ相対移動を複数回実施する必要がある。 The width direction is a direction intersecting the wiping direction.
If the length in the width direction of the second pressing member is shorter than the length in the width direction of the opening surface, the wiping member pressed toward the opening surface by the second pressing member has an opening surface along the width direction. It is difficult to contact the whole of the and contact part of the opening surface. Then, it is difficult for the wiping member to wipe the entire opening surface by one relative movement in the wiping direction of the wiping member, and the wiping member has an opening face of the opening surface by multiple relative movements in the wiping direction of the wiping member. It will wipe out the whole. For this reason, in order to absorb the whole of the ink adhering to the opening surface properly by the wiping member, it is necessary to carry out relative movement in the wiping direction of the wiping member a plurality of times.

第２押圧部材の幅方向の長さが、開口面の幅方向の長さよりも長い場合、第２押圧部材によって開口面側に押圧される払拭部材は、幅方向に沿って、開口面の全体に接触する。すると、払拭部材の払拭方向への１回の相対移動によって、払拭部材は開口面の全体を払拭することができる。このため、払拭部材が開口面に付着したインクの全体を適正に吸収するためには、払拭部材の払拭方向へ相対移動を１回実施すればよい。
従って、第２押圧部材の幅方向の長さが開口面の幅方向の長さよりも長くなると、第２押圧部材の幅方向の長さが開口面の幅方向の長さよりも短い場合と比べて、払拭部材の払拭方向へ相対移動の回数が少なくなり、払拭部材は、短時間で開口面に付着したインクの全体を適正に吸収することができる。 When the length in the width direction of the second pressing member is longer than the length in the width direction of the opening surface, the wiping member pressed toward the opening surface by the second pressing member has the entire opening surface along the width direction. Contact Then, the wiping member can wipe the entire opening surface by one relative movement of the wiping member in the wiping direction. Therefore, in order to properly absorb the whole of the ink attached to the opening surface by the wiping member, the relative movement may be performed once in the wiping direction of the wiping member.
Therefore, when the length in the width direction of the second pressing member is longer than the length in the width direction of the opening surface, the length in the width direction of the second pressing member is shorter than the length in the width direction of the opening surface. The frequency of relative movement in the wiping direction of the wiping member is reduced, and the wiping member can appropriately absorb the entire ink attached to the opening surface in a short time.

［適用例３］上記適用例に記載の液体噴射装置では、前記第１押圧部材との間で前記第１接触部を挟む第１補助押圧部材と、前記第１押圧部材との間で前記第２接触部を挟む第２補助押圧部材とを有することが好ましい。   Application Example 3 In the liquid ejecting apparatus according to the application example described above, the first auxiliary pressing member sandwiching the first contact portion with the first pressing member, and the first auxiliary pressing member between the first pressing member and the first pressing member. It is preferable to have the 2nd auxiliary | assistant pressing member which pinches 2 contact parts.

第１押圧部材及び補助押圧部材（第１補助押圧部材、第２補助押圧部材）が接触部（第１接触部、第２接触部）を挟んで配置され、払拭部材が第１押圧部材及び補助押圧部材によって接触部側に押圧されると、払拭部材が第１押圧部材だけによって接触部側に押圧される場合と比べて、払拭部材は、接触部の形状に追従して変形しやすくなり、接触部の全体に接触しやすくなる。   The first pressing member and the auxiliary pressing member (the first auxiliary pressing member, the second auxiliary pressing member) are disposed across the contact portion (the first contact portion, the second contact portion), and the wiping member is the first pressing member and the auxiliary When the pressing member is pressed toward the contact portion by the pressing member, the wiping member easily deforms following the shape of the contact portion, as compared with the case where the wiping member is pressed toward the contact portion only by the first pressing member, It becomes easy to touch the whole contact part.

［適用例４］上記適用例に記載の液体噴射装置では、前記払拭部材が前記液体噴射ヘッドに対して相対移動する前の状態において、重力方向における前記第１押圧部材と前記接触部とのオーバーラップ量は前記第２押圧部材と前記開口面とのオーバーラップ量よりも大きく設定されていることが好ましい。   Application Example 4 In the liquid ejecting apparatus according to the application example described above, in a state before the wiping member moves relative to the liquid ejecting head, the first pressing member and the contact portion overlap in the gravity direction. It is preferable that the amount of wrap is set larger than the amount of overlap between the second pressing member and the opening surface.

閉空間形成部材の接触部は、開口面側に張り出した凸部である。液体噴射ヘッドの開口面は、ノズルが開口する面（平面）であり、開口面からインクが適正に噴射されるように余分な凹凸が設けられていない。このため、接触部は大きい凹凸であり、開口面は小さい凹凸である。
重力方向と交差する方向から見た場合、第１押圧部材と接触部とが平面的に重なる部分の重力方向の寸法が、第１押圧部材と接触部とのオーバーラップ量である。重力方向と交差する方向から見た場合、第２押圧部材と開口面とが平面的に重なる部分の重力方向の寸法が、第２押圧部材と開口面とのオーバーラップ量である。
第１押圧部材と接触部とのオーバーラップ量が大きくなると、第１押圧部材と接触部とのオーバーラップ量が小さい場合と比べて、払拭部材は、第１押圧部材によって接触部側に強く押圧され、大きい凹凸（接触部）に追従して大きく変形し、大きい凹凸（接触部）に適正に接触するようになる。このため、大きい凹凸（接触部）と第１押圧部材とのオーバーラップ量が、小さい凹凸（開口面）と第２押圧部材とのオーバーラップ量と比べて大きく設定されると、払拭部材は、大きい凹凸（接触部）に適正に接触するようになる。 The contact portion of the closed space forming member is a convex portion protruding toward the opening surface. The opening surface of the liquid jet head is a surface (flat surface) on which the nozzle opens, and no excessive unevenness is provided so that the ink is properly ejected from the opening surface. For this reason, the contact portion is a large unevenness, and the opening surface is a small unevenness.
When viewed from the direction intersecting the direction of gravity, the dimension in the direction of gravity of the portion where the first pressing member and the contact portion overlap in plan is the amount of overlap between the first pressing member and the contact portion. When viewed from a direction intersecting the direction of gravity, the dimension in the direction of gravity of the portion where the second pressing member and the opening surface overlap in a plane is the amount of overlap between the second pressing member and the opening surface.
When the overlap amount between the first pressing member and the contact portion increases, the wiping member is strongly pressed toward the contact portion by the first pressing member, as compared with the case where the overlap amount between the first pressing member and the contact portion is small. And follow the large unevenness (contact portion) to be greatly deformed, and come into contact with the large unevenness (contact portion) properly. Therefore, when the overlap amount between the large unevenness (contact portion) and the first pressing member is set larger than the overlap amount between the small unevenness (opening surface) and the second pressing member, the wiping member is: It will come in contact with large unevenness (contact part) properly.

［適用例５］上記適用例に記載の液体噴射装置では、前記開口面と前記接触部との間の距離は、前記払拭部材が前記液体噴射ヘッドに対して相対移動する途中で変更可能であることが好ましい。   Application Example 5 In the liquid ejecting apparatus according to the application example described above, the distance between the opening surface and the contact portion can be changed while the wiping member moves relative to the liquid ejecting head. Is preferred.

重力方向における開口面と接触部との間の距離が短くなると、重力方向における開口面と接触部との間の距離が長い場合と比べて、押圧部材は、払拭部材を開口面側または接触部側に強く押圧する。すなわち、重力方向における開口面と接触部との間の距離によって、払拭部材の押圧状態が異なる。
例えば、開口面または接触部が、平坦でなく凹凸を有し、重力方向における開口面と接触部との間の距離が部分的に変化する場合、開口面と接触部との間の距離が短い部分で、押圧部材は払拭部材を強く押圧し、開口面と接触部との間の距離が長い部分で、押圧部材は払拭部材を弱く押圧するので、払拭部材は開口面または接触部を均一に払拭することが難しい。
重力方向における開口面と接触部との間の距離が相対移動の途中で変更可能であると、開口面と接触部との間の距離が短い部分、開口面と接触部との間の距離が長い部分において、押圧部材が払拭部材を押圧する力が一定になるように、開口面と接触部との間の距離を変更できる。その結果、重力方向における開口面と接触部との間の距離が部分的に変化する場合であっても、押圧部材が払拭部材を押圧する力が一定になり、払拭部材は開口面または接触部を均一に払拭することができる。 When the distance between the opening surface and the contact portion in the direction of gravity is shortened, the pressing member is closer to the opening surface side or the contact portion than the case where the distance between the opening surface and the contact portion in the direction of gravity is long. Press strongly on the side. That is, the pressing state of the wiping member differs depending on the distance between the opening surface and the contact portion in the gravity direction.
For example, if the opening surface or the contact portion is not flat but has unevenness and the distance between the opening surface and the contact portion in the gravity direction is partially changed, the distance between the opening surface and the contact portion is short In part, the pressing member strongly presses the wiping member, and the pressing member weakly presses the wiping member at a portion where the distance between the opening surface and the contact portion is long, so the wiping member uniformly makes the opening surface or the contact portion It is difficult to wipe out.
If the distance between the opening surface and the contact portion in the direction of gravity can be changed during the relative movement, the distance between the opening surface and the contact portion is short. The distance between the opening surface and the contact portion can be changed so that the force with which the pressing member presses the wiping member becomes constant in the long portion. As a result, even when the distance between the opening surface and the contact portion in the gravity direction is partially changed, the force with which the pressing member presses the wiping member becomes constant, and the wiping member has the opening surface or the contact portion Can be wiped out evenly.

［適用例６］上記適用例に記載の液体噴射装置では、前記第１押圧部材は前記第２押圧部材よりも前記払拭方向の前方側に配置されていることが好ましい。   Application Example 6 In the liquid ejecting apparatus according to the application example, it is preferable that the first pressing member is disposed on the front side in the wiping direction with respect to the second pressing member.

液体噴射ヘッド（開口面）はノズルからインクを重力方向に噴射し、閉空間形成部材（接触部）はノズルが開口する閉空間を形成するので、閉空間形成部材（接触部）は液体噴射ヘッド（開口面）に対して重力方向側に配置される。
仮に、第２押圧部材が第１押圧部材よりも払拭方向の前方側に配置され、払拭部材が、接触部に付着したインクよりも先に、開口面に付着したインクを吸収すると、接触部は開口面に対して重力方向に配置されているので、先に吸収されたインク（開口面に付着したインク）は、自重によって重力方向に移動し、接触部を汚染するおそれがある。
第１押圧部材が第２押圧部材よりも払拭方向の前方側に配置され、払拭部材が、開口面に付着したインクよりも先に、接触部に付着したインクを吸収すると、開口面は接触部に対して重力方向と反対方向に配置されているので、先に吸収されたインク（接触部に付着したインク）は、自重によって重力方向と反対方向に移動しにくいので、開口面（液体噴射ヘッド）を汚染しにくくなる。 The liquid jet head (opening surface) jets ink from the nozzles in the direction of gravity, and the closed space forming member (contact portion) forms a closed space in which the nozzle opens, so the closed space forming member (contact portion) is the liquid jet head It is arranged on the gravity direction side with respect to (opening surface).
If the second pressing member is disposed forward of the first pressing member in the wiping direction and the wiping member absorbs the ink adhering to the opening surface prior to the ink adhering to the contact portion, the contact portion Since the ink is disposed in the direction of gravity with respect to the opening surface, the ink absorbed earlier (ink attached to the opening surface) may move in the direction of gravity due to its own weight and contaminate the contact portion.
When the first pressing member is disposed forward of the second pressing member in the wiping direction and the wiping member absorbs the ink adhering to the contact portion prior to the ink adhering to the opening surface, the opening surface is the contact portion Since the ink absorbed earlier (ink attached to the contact portion) is difficult to move in the opposite direction to the gravity direction by its own weight, the opening surface (liquid jet head Less likely to contaminate

［適用例７］上記適用例に記載の液体噴射装置では、前記払拭部材は、前記開口面を払拭する第１面と、前記第１面の反対側の面であり前記接触部を払拭する第２面とを有することが好ましい。   Application Example 7 In the liquid ejecting apparatus according to the application example, the wiping member may be a first surface that wipes the opening surface, and a surface opposite to the first surface and may wipe the contact portion. It is preferable to have two sides.

開口面に付着したインクは払拭部材の第１面によって吸収され、接触部に付着したインクは払拭部材の第１面の反対側の第２面によって吸収される。すなわち、開口面に付着したインク、及び接触部に付着したインクは、それぞれ、払拭部材のインクが吸収されていない面で吸収されるので、払拭部材のインクが吸収されている面で吸収される場合と比べて、適正にインクを吸収することができ、インクが残存しにくくなる。   The ink attached to the opening surface is absorbed by the first surface of the wiping member, and the ink attached to the contact portion is absorbed by the second surface opposite to the first surface of the wiping member. That is, since the ink attached to the opening surface and the ink attached to the contact portion are absorbed by the surface of the wiping member not absorbed by the ink, the ink absorbed by the wiping member is absorbed by the surface Compared to the case, the ink can be absorbed properly and the ink is less likely to remain.

実施形態に係る液体噴射装置の概略構成を示す概略図。FIG. 1 is a schematic view showing a schematic configuration of a liquid ejecting apparatus according to an embodiment. キャッピング位置におけるキャップ及び液体噴射ヘッドの状態を示す概略図。FIG. 5 is a schematic view showing the state of a cap and a liquid jet head at a capping position. ワイピング位置における押圧部材の状態を示す概略図。FIG. 7 is a schematic view showing the state of the pressing member in the wiping position. 図３のＡ−Ａに沿った断面図。Sectional drawing along AA of FIG. 図３のＢ−Ｂに沿った断面図。Sectional drawing in alignment with BB of FIG. ワイピング装置の他の状態を示す概略図。Schematic which shows the other state of a wiping apparatus.

以下、図面を参照して、本発明の実施形態について説明する。かかる実施形態は、本発明の一態様を示すものであり、この発明を限定するものではなく、本発明の技術的思想の範囲内で任意に変更可能である。また、以下の各図においては、各層や各部位を図面上で認識可能な程度の大きさとするため、各層や各部位の縮尺を実際とは異ならせしめてある。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. Such an embodiment shows one aspect of the present invention, does not limit the present invention, and can be arbitrarily changed within the scope of the technical idea of the present invention. Further, in the following drawings, the scale of each layer or each part is made different from the actual scale in order to make each layer or each part recognizable in the drawing.

（実施形態）
図１は、実施形態に係る液体噴射装置の概略構成を示す概略図である。
最初に、図１を参照し、本実施形態に係る液体噴射装置１１の概要について説明する。
本実施形態に係る液体噴射装置１１は、用紙などの媒体Ｓに「液体」の一例であるインクを噴射することによって記録（印刷）を行うインクジェット式のプリンターである。 (Embodiment)
FIG. 1 is a schematic view showing a schematic configuration of a liquid ejecting apparatus according to an embodiment.
First, an outline of the liquid ejecting apparatus 11 according to the present embodiment will be described with reference to FIG.
The liquid ejecting apparatus 11 according to the present embodiment is an ink jet printer that performs recording (printing) by ejecting ink, which is an example of “liquid”, onto a medium S such as a sheet.

図１に示すように、液体噴射装置１１は、インクを噴射するノズル１２を有する液体噴射ヘッド１３と、液体噴射ヘッド１３を保持する保持部１４と、液体収容体１５に収容されたインクを液体噴射ヘッド１３に向けて供給する供給流路１６と、を備える。液体噴射ヘッド１３は、印刷範囲が媒体Ｓの幅全体に亘るラインヘッドであり、装置本体に固定され、媒体Ｓに対向する側にインクを噴射（吐出）するノズル１２が開口する開口面２７を有する。また、液体噴射ヘッド１３がインクを噴射する位置を記録位置という。   As shown in FIG. 1, the liquid ejecting apparatus 11 includes a liquid ejecting head 13 having a nozzle 12 for ejecting ink, a holding unit 14 for holding the liquid ejecting head 13, and the ink contained in the liquid container 15. And a supply flow path 16 for supplying toward the jet head 13. The liquid jet head 13 is a line head whose print range is the entire width of the medium S, is fixed to the apparatus main body, and has an opening surface 27 on which the nozzle 12 which jets (discharges) ink is opened on the side facing the medium S. Have. Further, the position at which the liquid jet head 13 jets the ink is referred to as a recording position.

液体噴射装置１１は、印刷前の媒体Ｓを複数収容可能な収容カセット１９と、印刷済みの媒体Ｓを保持する保持トレイ２０と、液体噴射ヘッド１３のメンテナンスを行うメンテナンス装置２１と、各構成要素を制御する制御部１００と、を備える。
液体噴射装置１１は、収容カセット１９から保持トレイ２０に向けて湾曲しつつ延びる媒体Ｓの搬送経路上に配置された複数の搬送ローラー１７と、記録位置において媒体Ｓを支持する搬送ベルト１８と、を備える。搬送ベルト１８は、メンテナンス装置２１が液体噴射ヘッド１３のメンテナンスを行うときには、図１に実線で示す支持位置から、図１に二点鎖線で示す退避位置に退避する。 The liquid ejecting apparatus 11 includes an accommodating cassette 19 capable of accommodating a plurality of media S before printing, a holding tray 20 for retaining the printed medium S, a maintenance device 21 for performing maintenance of the liquid ejecting head 13, and each component And a control unit 100 that controls the
The liquid ejecting apparatus 11 includes a plurality of transport rollers 17 disposed on a transport path of the medium S extending from the storage cassette 19 toward the holding tray 20 while curving, and a transport belt 18 supporting the medium S at the recording position. Equipped with When the maintenance device 21 performs maintenance on the liquid jet head 13, the transport belt 18 retracts from the support position shown by a solid line in FIG. 1 to a retraction position shown by a two-dot chain line in FIG.

以降の説明では、支持位置にある搬送ベルト１８上において媒体Ｓが進む方向をＹ方向とし、媒体Ｓの幅方向（紙面と直交する方向）をＸ方向とし、Ｘ方向及びＹ方向に交差し液体噴射ヘッド１３がインクを噴射する方向をＺ方向とする。
なお、Ｘ方向は「払拭方向」の一例であり、Ｙ方向は「幅方向」の一例であり、Ｚ方向は「重力方向」の一例である。さらに、方向を示す矢印の先端側が（＋）方向であり、方向を示す矢印の基端側が（−）方向であるとする。 In the following description, the direction in which the medium S advances on the transport belt 18 at the support position is the Y direction, the width direction of the medium S (direction orthogonal to the paper surface) is the X direction, and the liquid intersects the X direction and the Y direction. The direction in which the ejection head 13 ejects ink is taken as the Z direction.
Note that the X direction is an example of “the wiping direction”, the Y direction is an example of the “width direction”, and the Z direction is an example of the “gravity direction”. Furthermore, it is assumed that the distal end side of the arrow indicating the direction is the (+) direction, and the proximal end side of the arrow indicating the direction is the (−) direction.

メンテナンス装置２１は、「閉空間形成部材」の一例であるキャップ２２と、キャップ２２に接続された廃液流路２３と、廃液流路２３の途中に設けられた吸引ポンプ２４と、キャップ２２を移動させる移動機構２５と、液体噴射ヘッド１３のワイピングを行うワイピング装置４０と、を備える。そして、液体噴射装置１１では、メンテナンス装置２１により、液体噴射ヘッド１３で生じる噴射不良の予防または解消のために、キャッピング、吸引クリーニング及びワイピングなどのメンテナンス動作を行う。   The maintenance device 21 moves the cap 22 which is an example of a “closed space forming member”, the waste liquid flow path 23 connected to the cap 22, the suction pump 24 provided in the middle of the waste liquid flow path 23, and the cap 22. And a wiping device 40 for wiping the liquid jet head 13. Then, in the liquid ejecting apparatus 11, maintenance operations such as capping, suction cleaning, and wiping are performed by the maintenance device 21 in order to prevent or eliminate the ejection failure generated in the liquid ejecting head 13.

移動機構２５は、キャップ２２を、図１に実線で示されるキャップ２２の位置（ワイピング位置）、及び図１に二点鎖線で示されるキャップ２２の位置（キャッピング位置）に移動させる。
キャッピング位置及びワイピング位置において、液体噴射ヘッド１３はキャップ２２に対して重力方向と反対方向に位置し、キャップ２２は液体噴射ヘッド１３に対して重力方向に位置する。さらに、キャッピング位置において、キャップ２２は液体噴射ヘッド１３に接し、ワイピング位置において、キャップ２２は液体噴射ヘッド１３から離間する。
キャップ２２は、キャッピング位置において液体噴射ヘッド１３の開口面２７に対向配置される本体部５５と、本体部５５の周縁に配置され開口面２７側に突出する接触部３５とを有する。キャッピング位置において、接触部３５が開口面２７に接触することで、キャップ２２はノズル１２が開口する開口面２７を封止し、ノズル１２が開口する閉空間を形成する。本体部５５は、廃液流路２３を介して吸引ポンプ２４に接続されている。また、ノズル１２が開口する閉空間を形成することをキャッピングという。液体噴射ヘッド１３がインクの噴射を行わない時には、キャッピングを行って液体噴射ヘッド１３におけるインクの乾燥（蒸発）を抑制し、液体噴射ヘッド１３におけるインクの噴射不良を予防する。 The moving mechanism 25 moves the cap 22 to a position (wiping position) of the cap 22 shown by solid lines in FIG. 1 and a position (capping position) of the cap 22 shown by two-dot chain lines in FIG.
In the capping position and the wiping position, the liquid jet head 13 is positioned opposite to the direction of gravity with respect to the cap 22, and the cap 22 is positioned in the direction of gravity relative to the liquid jet head 13. Furthermore, in the capping position, the cap 22 is in contact with the liquid jet head 13 and in the wiping position, the cap 22 is separated from the liquid jet head 13.
The cap 22 has a main body portion 55 disposed opposite to the opening surface 27 of the liquid jet head 13 at the capping position, and a contact portion 35 disposed on the periphery of the main body portion 55 and projecting toward the opening surface 27 side. In the capping position, when the contact portion 35 contacts the opening surface 27, the cap 22 seals the opening surface 27 in which the nozzle 12 is open, and forms a closed space in which the nozzle 12 is open. The main body 55 is connected to the suction pump 24 via the waste fluid channel 23. Further, forming a closed space in which the nozzle 12 opens is referred to as capping. When the liquid jet head 13 does not jet the ink, capping is performed to suppress drying (evaporation) of the ink in the liquid jet head 13 and to prevent ink jet failure in the liquid jet head 13.

メンテナンス動作では、キャッピング位置においてノズル１２が開口する閉空間が形成された状態で、吸引ポンプ２４を駆動させ、閉空間を負圧にし、液体噴射ヘッド１３の流路内のインクを強制的に排出する吸引クリーニングを実行する。吸引クリーニングによって、液体噴射ヘッド１３の流路内の異物（例えば、紙粉、増粘したインク、気泡など）がインクと一緒に排出される。本体部５５に排出されたインクは、廃液として廃液流路２３を通じて廃液収容体２６に収容される。   In the maintenance operation, the suction pump 24 is driven in a state where the closed space where the nozzle 12 is opened is formed at the capping position, the closed space is made negative pressure, and the ink in the flow path of the liquid jet head 13 is forcibly discharged. Perform suction cleaning. By suction cleaning, foreign matter (for example, paper dust, thickened ink, air bubbles, and the like) in the flow path of the liquid jet head 13 is discharged together with the ink. The ink discharged to the main body 55 is stored in the waste liquid storage body 26 through the waste liquid flow path 23 as a waste liquid.

媒体Ｓに印刷する際や、吸引クリーニングを実行する際に、液体噴射ヘッド１３から噴射されるインクは、ミストとなり、液体噴射ヘッド１３の開口面２７に付着し、液体噴射ヘッド１３の開口面２７を汚染する。加えて、吸引クリーニングによって排出されたインクは、接触部３５に付着し、接触部３５を汚染する。開口面２７の面積は、接触部３５の面積よりも広いので、開口面２７には、接触部３５と比べてより多量のインクが付着する。
さらに、接触部３５に付着したインクは、キャッピングなどによって開口面２７に転写され、開口面２７を汚染する。開口面２７に付着したインクは、媒体Ｓを汚染し、媒体Ｓに形成される画像の品位を低下させる。このため、メンテナンス動作では、液体噴射ヘッド１３及びキャップ２２をワイピング位置に配置し、開口面２７に付着したインク、及び接触部３５に付着したインクを取り除くワイピング動作を実施する。 When printing on the medium S or when performing suction cleaning, the ink jetted from the liquid jet head 13 becomes mist and adheres to the opening surface 27 of the liquid jet head 13, and the opening plane 27 of the liquid jet head 13 Contaminate the In addition, the ink discharged by the suction cleaning adheres to the contact portion 35 and contaminates the contact portion 35. Since the area of the opening surface 27 is larger than the area of the contact portion 35, a larger amount of ink adheres to the opening surface 27 than the contact portion 35.
Furthermore, the ink attached to the contact portion 35 is transferred to the opening surface 27 by capping or the like, and contaminates the opening surface 27. The ink attached to the opening surface 27 contaminates the medium S and degrades the quality of the image formed on the medium S. Therefore, in the maintenance operation, the liquid jet head 13 and the cap 22 are disposed at the wiping position, and the wiping operation for removing the ink attached to the opening surface 27 and the ink attached to the contact portion 35 is performed.

図２は、キャッピング位置におけるキャップ及び液体噴射ヘッドの状態を示す概略図である。詳しくは、図２は、Ｚ方向側から見た図であり、キャッピング位置においてノズル１２が開口する閉空間が形成される場合のキャップ２２及び液体噴射ヘッド１３の状態を示す概略図である。
図２では、キャップ２２が実線で図示され、液体噴射ヘッド１３が破線で図示され、液体噴射ヘッド１３からインクが噴射される領域（インク噴射領域１０（ノズル１２が形成された領域））が一点鎖線で図示されている。
なお、図２には、記録位置における媒体Ｓが二点鎖線で図示されている。キャッピングでは媒体Ｓが搬送されないので、キャッピング位置に媒体Ｓが配置されない。仮に、キャッピング位置に媒体Ｓが搬送される場合、キャッピング位置における媒体Ｓの位置は、図中に二点鎖線で示される記録位置における媒体Ｓの位置と同じになる。さらに、液体噴射ヘッド３は装置本体に固定されているので、キャッピング位置における液体噴射ヘッド３の位置は、記録位置における液体噴射ヘッド３の位置と同じになる。
次に、図２を参照し、キャップ２２の概要について説明する。 FIG. 2 is a schematic view showing the state of the cap and the liquid jet head at the capping position. Specifically, FIG. 2 is a view as viewed from the Z direction side, and is a schematic view showing the state of the cap 22 and the liquid jet head 13 in the case where a closed space where the nozzle 12 is opened at the capping position is formed.
In FIG. 2, the cap 22 is illustrated by a solid line, the liquid jet head 13 is illustrated by a broken line, and an area (ink ejection area 10 (area where the nozzle 12 is formed)) where ink is ejected from the liquid ejection head 13 is one point. It is illustrated by a dashed line.
In FIG. 2, the medium S at the recording position is illustrated by a two-dot chain line. Since the medium S is not transported by capping, the medium S is not placed at the capping position. If the medium S is conveyed to the capping position, the position of the medium S at the capping position is the same as the position of the medium S at the recording position indicated by the two-dot chain line in the figure. Furthermore, since the liquid jet head 3 is fixed to the apparatus main body, the position of the liquid jet head 3 at the capping position is the same as the position of the liquid jet head 3 at the recording position.
Next, the outline of the cap 22 will be described with reference to FIG.

図２に示すように、Ｚ方向側から見た場合、液体噴射ヘッド１３及びキャップ２２は、Ｙ方向の寸法に比べてＸ方向の寸法が長い長方形状を有し、キャップ２２は液体噴射ヘッド１３の内側に配置される。キャップ２２の接触部３５は、図中に破線で示されるインク噴射領域１０を取り囲むように配置され、額縁形状を有している。接触部３５で囲まれた領域が外気と隔離される閉空間になり、インク噴射領域１０に配置されるノズル１２内のインクの蒸発（増粘）が防止される。   As shown in FIG. 2, when viewed from the Z direction side, the liquid jet head 13 and the cap 22 have a rectangular shape whose dimension in the X direction is longer than the dimension in the Y direction, and the cap 22 is a liquid jet head 13. Placed inside the The contact portion 35 of the cap 22 is disposed so as to surround the ink jetting area 10 shown by a broken line in the figure, and has a frame shape. The area surrounded by the contact portion 35 is a closed space isolated from the outside air, and evaporation (thickening) of the ink in the nozzle 12 disposed in the ink jetting area 10 is prevented.

キャップ２２は、本体部５５と接触部３５とを有する。接触部３５は、第１接触部５１と第２接触部５２と第３接触部５３と第４接触部５４とで構成される。額縁形状の接触部３５において、Ｘ方向に延在する部分が第１接触部５１及び第２接触部５２であり、Ｙ方向に延在する部分が第３接触部５３及び第４接触部５４である。
第１接触部５１と第２接触部５２とはＹ方向に沿って配置され、第３接触部５３と第４接触部５４とはＸ方向に沿って配置される。このように、接触部３５は、Ｘ方向（払拭方向）に交差するＹ方向（幅方向）に沿って配置される第１接触部５１と第２接触部５２とを有する。 The cap 22 has a main body 55 and a contact portion 35. The contact portion 35 includes a first contact portion 51, a second contact portion 52, a third contact portion 53, and a fourth contact portion 54. In the frame-shaped contact portion 35, portions extending in the X direction are the first contact portion 51 and the second contact portion 52, and portions extending in the Y direction are the third contact portion 53 and the fourth contact portion 54. is there.
The first contact portion 51 and the second contact portion 52 are disposed along the Y direction, and the third contact portion 53 and the fourth contact portion 54 are disposed along the X direction. As described above, the contact portion 35 has the first contact portion 51 and the second contact portion 52 disposed along the Y direction (width direction) intersecting the X direction (the wiping direction).

仮に、キャッピング位置に媒体Ｓが搬送される場合、キャッピング位置において、第１接触部５１と第２接触部５２とは媒体Ｓに平面的に重なり、第３接触部５３と第４接触部５４とは媒体Ｓに平面的に重ならない。キャッピング位置に媒体Ｓが搬送される場合、媒体Ｓに平面的に重なる接触部５１，５２に付着したインクは、媒体Ｓに平面的に重ならない接触部５３，５４に付着したインクと比べて、開口面２７を介して、媒体Ｓに転写されやすい。すなわち、接触部５１，５２に付着したインクは、接触部５３，５４に付着したインクと比べて、媒体Ｓに悪影響を及ぼしやすい。このため、接触部５１，５２に付着したインクを、適正に取り除く必要がある。
詳細は後述するが、本実施形態は、ワイピング動作によって、接触部５１，５２（第１接触部５１、第２接触部５２）に付着したインクを適正に取り除くことが可能な構成を有している。 If the medium S is conveyed to the capping position, the first contact portion 51 and the second contact portion 52 planarly overlap the medium S at the capping position, and the third contact portion 53 and the fourth contact portion 54 Does not overlap the medium S in plan view. When the medium S is conveyed to the capping position, the ink attached to the contact portions 51 and 52 planarly overlapping the medium S is compared with the ink adhering to the contact portions 53 and 54 not planarly overlapping the medium S, It is easy to be transferred to the medium S through the opening surface 27. That is, the ink attached to the contact portions 51 and 52 is more likely to adversely affect the medium S than the ink attached to the contact portions 53 and 54. For this reason, it is necessary to properly remove the ink attached to the contact portions 51 and 52.
Although the details will be described later, this embodiment has a configuration capable of appropriately removing the ink attached to the contact portions 51 and 52 (the first contact portion 51 and the second contact portion 52) by the wiping operation. There is.

図３は、ワイピング位置における押圧部材の状態を示す概略図である。図４は、図３のＡ−Ａに沿った断面図である。図５は、図３のＢ−Ｂに沿った断面図である。
図３は、Ｚ方向側から見た図であり、ワイピング装置４０の構成要素である押圧部材３１，３２，４５，４６（第１押圧部材３１、第２押圧部材３２、第１補助押圧部材４５、第２補助押圧部材４６）が太い実線で図示され、キャップ２２が細い実線で図示され、液体噴射ヘッド１３が破線で図示され、ワイパー２８が二点鎖線で図示されている。図４及び図５では、ワイパー２８が開口面２７及び接触部３５を払拭している状態が図示されている。なお、図４及び図５では、ワイピング装置４０の状態を分かりやすくするために、ワイピング装置４０が大きく図示されている。
さらに、図３乃至図５では、説明に必要なワイピング装置４０の構成要素が図示され、説明に不要なワイピング装置４０の構成要素の図示が省略されている。
次に、図３乃至図５を参照し、ワイピング装置４０の概要について説明する。 FIG. 3 is a schematic view showing the state of the pressing member in the wiping position. FIG. 4 is a cross-sectional view taken along the line A-A of FIG. FIG. 5 is a cross-sectional view taken along the line B-B of FIG.
FIG. 3 is a view from the Z direction side, which is a component of the wiping device 40 (pressing members 31, 32, 45, 46 (first pressing member 31, second pressing member 32, first auxiliary pressing member 45). The second auxiliary pressing member 46) is illustrated by a thick solid line, the cap 22 is illustrated by a thin solid line, the liquid jet head 13 is illustrated by a broken line, and the wiper 28 is illustrated by a two-dot chain line. In FIGS. 4 and 5, the wiper 28 wipes the opening surface 27 and the contact portion 35. In FIG. 4 and FIG. 5, the wiping device 40 is shown large in order to make the state of the wiping device 40 easy to understand.
Furthermore, in FIG. 3 to FIG. 5, the components of the wiping device 40 necessary for the description are illustrated, and the components of the wiping device 40 unnecessary for the description are omitted.
Next, the outline of the wiping device 40 will be described with reference to FIGS. 3 to 5.

図４に示すように、ワイピング装置４０は、ワイパー２８、送り出しローラー２９、巻き取りローラー３０、第１押圧部材３１、第２押圧部材３２、送り出しモーター３３、巻き取りモーター３４、第１押圧手段３７、第２押圧手段３８、第１ローラー対４１、第２ローラー対４２、第３ローラー対４３、及び第４ローラー対４４などを有している。
なお、ワイパー２８は「払拭部材」の一例である。 As shown in FIG. 4, the wiping device 40 includes a wiper 28, a delivery roller 29, a take-up roller 30, a first pressing member 31, a second pressing member 32, a delivery motor 33, a take-up motor 34, and a first pressing means 37. , A second pressing means 38, a first roller pair 41, a second roller pair 42, a third roller pair 43, a fourth roller pair 44 and the like.
In addition, the wiper 28 is an example of "a wiping member."

ワイピング装置４０は、移動手段６０によってＸ方向に移動可能になっている。
移動手段６０は、Ｘ方向に沿ったガイド軸３９と、駆動部（図示省略）とを有し、駆動部を駆動させることによって、ワイピング装置４０をガイド軸３９（Ｘ方向）に沿って移動させる。移動手段６０によって、ワイピング装置４０（ワイパー２８）がＸ方向に移動しながら、ワイパー２８が開口面２７及び接触部３５に付着したインクを拭き取るワイピング動作が実施される。すなわち、ワイパー２８は、液体噴射ヘッド１３及びキャップ２２に対してＸ方向に移動（相対移動）して、開口面２７及び接触部３５に付着したインクを拭き取る。
ワイピング装置４０では、送り出しローラー２９と、第２押圧部材３２と、第１押圧部材３１と、巻き取りローラー３０とが、Ｘ方向に沿って順に配置されている。第１押圧部材３１は、第２押圧部材３２よりもＸ方向の前方側に配置され、ワイパー２８を接触部３５側に押圧する。第２押圧部材３２は、第１押圧部材３１よりもＸ方向の後方側に配置され、ワイパー２８を開口面２７側に押圧する。
送り出しローラー２９には、未使用のワイパー２８（または、汚れが軽微なワイパー２８）がロール状に巻かれている。 The wiping device 40 is movable in the X direction by the moving means 60.
The moving means 60 has a guide shaft 39 along the X direction and a drive unit (not shown), and moves the wiping device 40 along the guide shaft 39 (X direction) by driving the drive unit. . While the wiping device 40 (wiper 28) is moved in the X direction by the moving means 60, a wiping operation is performed in which the wiper 28 wipes the ink attached to the opening surface 27 and the contact portion 35. That is, the wiper 28 moves (relatively moves) in the X direction with respect to the liquid jet head 13 and the cap 22, and wipes the ink attached to the opening surface 27 and the contact portion 35.
In the wiping device 40, the delivery roller 29, the second pressing member 32, the first pressing member 31, and the winding roller 30 are arranged in order along the X direction. The first pressing member 31 is disposed forward of the second pressing member 32 in the X direction, and presses the wiper 28 toward the contact portion 35. The second pressing member 32 is disposed rearward of the first pressing member 31 in the X direction, and presses the wiper 28 toward the opening surface 27.
An unused wiper 28 (or a lightly soiled wiper 28) is wound around the delivery roller 29 in the form of a roll.

ワイピング動作では、ワイピング装置４０がＸ方向（払拭方向）に移動しながら、送り出しローラー２９から巻き解かれたワイパー２８が、第１押圧部材３１と、第２押圧部材３２とを経由して、巻き取りローラー３０に巻き取られる。
詳しくは、ワイピング動作では、送り出しモーター３３を駆動させることで、送り出しローラー２９を回転させ、ワイパー２８を第１押圧部材３１と第２押圧部材３２とに向けて送り出す。ワイパー２８は、キャップ２２（接触部３５）に対向配置される第２面５０と、液体噴射ヘッド１３（開口面２７）に対向配置される第１面４９とを有する。ワイパー２８において、第２面５０は、第１面４９の反対側の面である。
送り出しローラー２９から送り出されたワイパー２８は、最初に、第２押圧部材３２によって第１面４９が液体噴射ヘッド１３（開口面２７）側に押圧され、液体噴射ヘッド１３（開口面２７）に接触する状態になり、ワイピング装置４０がＸ方向に移動することによって、液体噴射ヘッド１３（開口面２７）に付着したインクが第１面４９によって吸収される（拭き取られる）。最後に、第１押圧部材３１によって第２面５０がキャップ２２（接触部３５）側に押圧され、第２面５０がキャップ２２（接触部３５）に接触する状態になり、ワイピング装置４０がＸ方向に移動することによって、キャップ２２（接触部３５）に付着したインクが第２面５０によって吸収される（拭き取られる）。
キャップ２２（接触部３５）に付着したインクを吸収したワイパー２８は、巻き取りローラー３０に向けて送り出され、巻き取りモーター３４が駆動することで、巻き取りローラー３０に巻き取られる。
このように、ワイパー２８は、開口面２７を払拭する第１面４９と、第１面４９の反対側の面であり接触部３５を払拭する第２面５０とを有する。 In the wiping operation, the wiper 28 unwound from the delivery roller 29 is wound via the first pressing member 31 and the second pressing member 32 while the wiping device 40 moves in the X direction (the wiping direction). The take-up roller 30 is taken up.
More specifically, in the wiping operation, the delivery motor 33 is driven to rotate the delivery roller 29 and deliver the wiper 28 toward the first pressing member 31 and the second pressing member 32. The wiper 28 has a second surface 50 disposed opposite to the cap 22 (contact portion 35) and a first surface 49 disposed opposite to the liquid jet head 13 (opening surface 27). In the wiper 28, the second surface 50 is the surface opposite to the first surface 49.
First, the first surface 49 of the wiper 28 delivered from the delivery roller 29 is pressed by the second pressing member 32 toward the liquid jet head 13 (opening face 27), and the wiper 28 contacts the liquid jet head 13 (opening face 27). When the wiping device 40 moves in the X direction, the ink attached to the liquid jet head 13 (opening surface 27) is absorbed by the first surface 49 (wipe off). Finally, the second surface 50 is pressed to the cap 22 (contact portion 35) side by the first pressing member 31, and the second surface 50 comes into contact with the cap 22 (contact portion 35), and the wiping device 40 By moving in the direction, the ink attached to the cap 22 (contact portion 35) is absorbed (swept) by the second surface 50.
The wiper 28 that has absorbed the ink attached to the cap 22 (contact portion 35) is sent out to the winding roller 30, and is wound around the winding roller 30 by driving the winding motor 34.
Thus, the wiper 28 has a first surface 49 for wiping the opening surface 27 and a second surface 50 for wiping the contact portion 35 which is a surface opposite to the first surface 49.

ワイピング装置４０において、ワイパー２８を接触部３５に接触させる第１押圧部材３１は、ワイパー２８を開口面２７に接触させる第２押圧部材３２よりもＸ方向（払拭方向）の前方側に配置されている。このため、ワイピング装置４０がＸ方向（払拭方向）に移動すると、ワイパー２８は、最初に、第１押圧部材３１によって押圧される部分が接触部３５に接触し、最後に、第２押圧部材３２によって押圧される部分が開口面２７に接触する。
従って、送り出しローラー２９から巻き取りローラー３０に向けてワイパー２８が送り出されながら、ワイピング装置４０がＸ方向に移動すると、最初に、第１押圧部材３１によって押圧されるワイパー２８の第２面５０が、キャップ２２の接触部３５に付着したインクを拭き取り、最後に、第２押圧部材３２によって押圧されるワイパー２８の第１面４９が、液体噴射ヘッド１３の開口面２７に付着したインクを拭き取る。 In the wiping device 40, the first pressing member 31 which brings the wiper 28 into contact with the contact portion 35 is disposed on the front side in the X direction (the wiping direction) than the second pressing member 32 which brings the wiper 28 into contact with the opening surface 27. There is. Therefore, when the wiping device 40 moves in the X direction (the wiping direction), the wiper 28 first contacts the contact portion 35 with the portion pressed by the first pressing member 31 and finally the second pressing member 32. The portion pressed by contacts the opening surface 27.
Therefore, when the wiping device 40 moves in the X direction while the wiper 28 is fed from the delivery roller 29 toward the take-up roller 30, the second surface 50 of the wiper 28 first pressed by the first pressing member 31 Finally, the first surface 49 of the wiper 28 pressed by the second pressing member 32 wipes off the ink attached to the opening surface 27 of the liquid jet head 13.

上述したように、開口面２７には、接触部３５と比べてより多量のインクが付着する。すなわち、開口面２７に多量のインクが付着し、接触部３５に少量のインクが付着する。
例えば、ワイパー２８が、最初に、開口面２７に付着した多量のインクを拭き取り、最後に、接触部３５に付着した少量のインクを拭き取る場合、多量のインクを拭き取り汚れが甚大なワイパー２８が接触部３５を拭くことになるので、汚れが軽微なワイパー２８が接触部３５を拭く場合と比べて、接触部３５に付着したインクを適正に拭き取りにくくなり、接触部３５にインクが残存するおそれがある。さらに、インクを多量に吸収したワイパー２８によって、接触部３５が汚染されるおそれがある。 As described above, a larger amount of ink adheres to the opening surface 27 compared to the contact portion 35. That is, a large amount of ink adheres to the opening surface 27, and a small amount of ink adheres to the contact portion 35.
For example, when the wiper 28 first wipes a large amount of ink adhering to the opening surface 27 and finally wipes a small amount of ink adhering to the contact portion 35, the wiper 28 wipes a large amount of ink and the contamination is severe. Since the portion 35 is to be wiped, it is difficult to wipe the ink adhering to the contact portion 35 properly as compared with the case where the wiper 28 with slight contamination wipes the contact portion 35, and the ink may remain in the contact portion 35 is there. Furthermore, the contact portion 35 may be contaminated by the wiper 28 that has absorbed a large amount of ink.

本実施形態では、ワイパー２８が、最初に、接触部３５に付着した少量のインクを拭き取り、最後に、開口面２７に付着した多量のインクを拭き取る。このため、少量のインクを拭き取り汚れが軽微なワイパー２８が開口面２７を拭くことになるので、汚れが甚大なワイパー２８が開口面２７を拭く場合と比べて、開口面２７に付着したインクを適正に拭き取りやすくなり、さらに、インクを吸収したワイパー２８によって開口面２７が汚染されにくくなる。
さらに、ワイパー２８が、開口面２７に付着したインクよりも先に、接触部３５に付着したインクを吸収し、開口面２７は接触部３５に対して重力方向と反対方向に配置されているので、先にワイパー２８に吸収されたインク（接触部３５に付着したインク）は、自重によって重力方向と反対方向に移動しにくく、開口面２７を汚染しにくい。
従って、ワイパー２８が、最初に、接触部３５に付着した少量のインクを拭き取り、最後に、開口面２７に付着した多量のインクを拭き取ると、ワイパー２８は、接触部３５及び開口面２７に付着したインクを適正に拭き取り、接触部３５及び開口面２７にインクが残存しにくくなる。
従って、ワイパー２８を接触部３５に接触させる第１押圧部材３１は、ワイパー２８を開口面２７に接触させる第２押圧部材３２よりもＸ方向（払拭方向）の前方側に配置される構成が好ましい。 In the present embodiment, the wiper 28 first wipes off a small amount of ink adhering to the contact portion 35 and finally wipes a large amount of ink adhering to the opening surface 27. For this reason, the small amount of ink is wiped off and the wiper 28 with slight stains wipes the opening surface 27. Therefore, compared with the case where the wiper 28 with huge stain wipes the opening surface 27, the ink adhering to the aperture 27 is It becomes easy to wipe off properly, and furthermore, the opening surface 27 is less likely to be contaminated by the wiper 28 that has absorbed the ink.
Furthermore, since the wiper 28 absorbs the ink attached to the contact portion 35 prior to the ink attached to the opening surface 27, the opening surface 27 is disposed in the direction opposite to the direction of gravity with respect to the contact portion 35. The ink absorbed by the wiper 28 in advance (ink attached to the contact portion 35) is unlikely to move in the direction opposite to the direction of gravity due to its own weight, and is less likely to contaminate the opening surface 27.
Therefore, when the wiper 28 first wipes a small amount of ink adhering to the contact portion 35 and finally wipes a large amount of ink adhering to the opening surface 27, the wiper 28 adheres to the contact portion 35 and the opening surface 27 The ink is properly wiped off, and the ink is less likely to remain on the contact portion 35 and the opening surface 27.
Therefore, it is preferable that the first pressing member 31 which brings the wiper 28 into contact with the contact portion 35 is disposed on the front side in the X direction (the wiping direction) than the second pressing member 32 which brings the wiper 28 into contact with the opening surface 27. .

さらに、本実施形態は、最初に、ワイパー２８の一方の面（第２面５０）が接触部３５に付着したインクを拭き取り、最後に、ワイパー２８の他方の面（第１面４９）が開口面２７に付着したインクを拭き取る。
本実施形態では、接触部３５及び開口面２７を払拭するワイパー２８の払拭面が異なり、最初に第２面５０が接触部３５に付着したインクを拭き取り、最後に第１面４９が開口面２７に付着したインクを拭き取るので、最初に払拭される接触部３５に付着したインクが、ワイパー２８によって、最後に払拭される開口面２７に転写されにくくなる。
このように、最初に、ワイパー２８の一方の面（第２面５０）が接触部３５に付着したインクを拭き取り、最後に、ワイパー２８の他方の面（第１面４９）が開口面２７に付着したインクを拭き取る構成を有すると、ワイパー２８は、接触部３５及び開口面２７に付着したインクを適正に拭き取ることができる。
従って、ワイパー２８は、開口面２７を払拭する第１面４９と、第１面４９の反対側の面であり接触部３５を払拭する第２面５０とを有する構成が好ましい。 Furthermore, in the present embodiment, first, one surface (second surface 50) of the wiper 28 wipes off the ink adhering to the contact portion 35, and finally, the other surface (first surface 49) of the wiper 28 is opened. The ink adhering to the surface 27 is wiped off.
In this embodiment, the wiping surface of the wiper 28 for wiping the contact portion 35 and the opening surface 27 is different, and the second surface 50 first wipes off the ink adhering to the contact portion 35 and finally the first surface 49 has the opening surface 27. Since the ink attached to the ink is wiped off, the ink attached to the contact portion 35 to be wiped first is not easily transferred to the opening face 27 to be wiped last by the wiper 28.
Thus, first, one surface (the second surface 50) of the wiper 28 wipes off the ink adhering to the contact portion 35, and finally, the other surface (the first surface 49) of the wiper 28 forms the opening surface 27. When the attached ink is wiped off, the wiper 28 can wipe off the ink attached to the contact portion 35 and the opening surface 27 properly.
Accordingly, it is preferable that the wiper 28 has a first surface 49 for wiping the opening surface 27 and a second surface 50 for wiping the contact portion 35 which is a surface opposite to the first surface 49.

送り出しローラー２９から巻き取りローラー３０に向けて、ワイパー２８が適正に送り出されるように、送り出しローラー２９と第２押圧部材３２との間には、第１ローラー対４１が配置され、第２押圧部材３２と第１押圧部材３１との間には、第２ローラー対４２及び第３ローラー対４３が配置され、第１押圧部材３１と巻き取りローラー３０との間には第４ローラー対４４が配置されている。
すなわち、送り出しローラー２９と巻き取りローラー３０との間に、ローラー対４１，４２，４３，４４を設けることによって、ワイパー２８は、送り出しローラー２９から巻き取りローラー３０に向けて適正に送り出される。 A first roller pair 41 is disposed between the delivery roller 29 and the second pressing member 32 so that the wiper 28 is properly delivered from the delivery roller 29 toward the winding roller 30, and a second pressing member is provided. The second roller pair 42 and the third roller pair 43 are disposed between the first pressing member 31 and the second pressing member 31, and the fourth roller pair 44 is disposed between the first pressing member 31 and the winding roller 30. It is done.
That is, by providing the roller pair 41, 42, 43, 44 between the delivery roller 29 and the take-up roller 30, the wiper 28 is properly delivered from the delivery roller 29 toward the take-up roller 30.

上述したように、ワイパー２８は、液体噴射ヘッド１３及びキャップ２２に対してＸ方向に移動（相対移動）して、開口面２７及び接触部３５に付着したインクを吸収可能である。
ワイパー２８は、インクを吸収可能な部材で構成されている。詳しくは、ワイパー２８は、シート状の繊維（例えば、不織布）で構成されている。さらに、巻き取りローラー３０によってロール状に巻き取られたワイパー２８は、巻き取りローラー３０から取り外すことができる。
例えば、巻き取りローラー３０によってロール状に巻き取られたワイパー２８の汚れが軽微である場合、ロール状に巻き取られたワイパー２８は、巻き取りローラー３０から取り外され、送り出しローラー２９に再度取付けられ、再使用される。
例えば、巻き取りローラー３０によってロール状に巻き取られたワイパー２８の汚れが重大である場合、ロール状に巻き取られたワイパー２８は、巻き取りローラー３０から取り外され、廃棄される。そして、未使用のロール状のワイパー２８が、送り出しローラー２９に取付けられる。 As described above, the wiper 28 can move (relatively move) in the X direction with respect to the liquid jet head 13 and the cap 22 and can absorb the ink attached to the opening surface 27 and the contact portion 35.
The wiper 28 is composed of a member capable of absorbing ink. Specifically, the wiper 28 is made of sheet-like fibers (for example, non-woven fabric). Furthermore, the wiper 28 taken up in a roll by the take-up roller 30 can be removed from the take-up roller 30.
For example, when the dirt of the wiper 28 taken up in a roll by the take-up roller 30 is slight, the wiper 28 taken up in a roll is removed from the take-up roller 30 and attached to the delivery roller 29 again. , Will be reused.
For example, if the soiling of the wiper 28 taken up by the take-up roller 30 is serious, the winded wiper 28 is removed from the take-up roller 30 and discarded. Then, an unused roll-like wiper 28 is attached to the delivery roller 29.

図３及び図４に示すように、第１押圧部材３１及び第２押圧部材３２は、それぞれＹ方向に長い筒形状を有し（図４参照）、例えば金属によって構成される。第１押圧部材３１と第２押圧部材３２とでは、Ｙ方向の長さが異なり、第２押圧部材３２のＹ方向の長さは、第１押圧部材３１のＹ方向の長さよりも長い。
なお、押圧部材３１，３２の詳細は後述する。 As shown in FIGS. 3 and 4, each of the first pressing member 31 and the second pressing member 32 has a cylindrical shape elongated in the Y direction (see FIG. 4), and is made of, for example, metal. The length in the Y direction is different between the first pressing member 31 and the second pressing member 32, and the length in the Y direction of the second pressing member 32 is longer than the length in the Y direction of the first pressing member 31.
The details of the pressing members 31 and 32 will be described later.

第１押圧手段３７及び第２押圧手段３８は、弾性部材（例えば、バネ）で構成され、Ｚ方向に伸縮可能である。
第１押圧手段３７は、第１押圧部材３１をキャップ２２側に押し付ける。その結果、ワイパー２８は、第１押圧部材３１によってキャップ２２側に押圧され、接触部３５の形状に追随して変形する。その結果、ワイパー２８は、接触部３５に適正に接触することが可能なり、接触部３５に付着したインクを適正に拭き取ることができる。
第２押圧手段３８は、第２押圧部材３２を液体噴射ヘッド１３側に押し付ける。その結果、ワイパー２８は、第２押圧部材３２によって液体噴射ヘッド１３側に押圧され、開口面２７の形状に追随して変形する。その結果、ワイパー２８は、開口面２７に適正に接触することが可能なり、開口面２７に付着したインクを適正に拭き取ることができる。 The first pressing unit 37 and the second pressing unit 38 are formed of an elastic member (for example, a spring) and can extend and contract in the Z direction.
The first pressing means 37 presses the first pressing member 31 to the cap 22 side. As a result, the wiper 28 is pressed toward the cap 22 by the first pressing member 31 and deformed following the shape of the contact portion 35. As a result, the wiper 28 can contact the contact portion 35 properly, and the ink attached to the contact portion 35 can be wiped off properly.
The second pressing means 38 presses the second pressing member 32 to the liquid jet head 13 side. As a result, the wiper 28 is pressed toward the liquid jet head 13 by the second pressing member 32 and deformed following the shape of the opening surface 27. As a result, the wiper 28 can contact the opening surface 27 properly, and the ink adhering to the opening surface 27 can be wiped off properly.

さらに、押圧手段３７，３８及び押圧部材３１，３２によって、ワイパー２８が、キャップ２２の接触部３５及び液体噴射ヘッド１３の開口面２７の両方に接触する。そして、ワイピング装置４０がＸ方向に１回移動することによって、ワイパー２８は、接触部３５に付着したインク、及び開口面２７に付着したインクの両方を同時に拭き取る。すなわち、ワイピング装置４０のＸ方向の移動が１回実施されると、接触部３５に付着したインク、及び開口面２７に付着したインクの両方は、ワイパー２８によって、同時に（一括で）拭き取られる。   Furthermore, the wipers 28 contact both the contact portion 35 of the cap 22 and the opening surface 27 of the liquid jet head 13 by the pressing means 37 and 38 and the pressing members 31 and 32. Then, the wiping device 40 wipes both the ink attached to the contact portion 35 and the ink attached to the opening surface 27 simultaneously by moving the wiping device 40 once in the X direction. That is, when the movement of the wiping device 40 in the X direction is performed once, both the ink attached to the contact portion 35 and the ink attached to the opening surface 27 are wiped simultaneously (collectively) by the wiper 28. .

図３及び図５に示すように、第１押圧部材３１は、第１接触部５１と第２接触部５２との間に配置され、第１押圧部材３１のＹ方向の長さは、第１接触部５１と第２接触部５２との間隔よりも短い。
第１押圧部材３１との間で第１接触部５１を挟む第１補助押圧部材４５と、第１押圧部材３１との間で第２接触部５２を挟む第２補助押圧部材４６とが設けられている。さらに、第１補助押圧部材４５を接触部３５側に押圧する第１補助押圧手段４７と、第２補助押圧部材４６を接触部３５側に押圧する第２補助押圧手段４８とが設けられている。補助押圧部材４５，４６は、押圧部材３１，３２と同様に、筒形状を有し、例えば金属によって構成される。補助押圧手段４７，４８は、押圧手段３７，３８と同様に、弾性部材（例えば、バネ）で構成され、Ｚ方向に伸縮可能である。
第１押圧部材３１は第１接触部５１に対してＹ（−）方向側に配置され、第１補助押圧部材４５は第１接触部５１に対してＹ（＋）方向側に配置される。ワイパー２８は、第１押圧部材３１と第１補助押圧部材４５とによって、第１接触部５１側に押圧される。第１押圧部材３１は第２接触部５２に対してＹ（＋）方向側に配置され、第２補助押圧部材４６は第２接触部５２に対してＹ（−）方向側に配置される。ワイパー２８は、第１押圧部材３１と第２補助押圧部材４６とによって、第２接触部５２側に押圧される。 As shown in FIGS. 3 and 5, the first pressing member 31 is disposed between the first contact portion 51 and the second contact portion 52, and the length of the first pressing member 31 in the Y direction is the first. It is shorter than the distance between the contact portion 51 and the second contact portion 52.
A first auxiliary pressing member 45 sandwiching the first contact portion 51 with the first pressing member 31 and a second auxiliary pressing member 46 sandwiching the second contact portion 52 with the first pressing member 31 are provided. ing. Furthermore, a first auxiliary pressing means 47 for pressing the first auxiliary pressing member 45 toward the contact portion 35 and a second auxiliary pressing means 48 for pressing the second auxiliary pressing member 46 toward the contact portion 35 are provided. . The auxiliary pressing members 45 and 46, like the pressing members 31 and 32, have a cylindrical shape, and are made of, for example, metal. The auxiliary pressing means 47, 48, like the pressing means 37, 38, are made of an elastic member (for example, a spring) and can extend and contract in the Z direction.
The first pressing member 31 is disposed on the Y (−) direction side with respect to the first contact portion 51, and the first auxiliary pressing member 45 is disposed on the Y (+) direction side with respect to the first contact portion 51. The wiper 28 is pressed toward the first contact portion 51 by the first pressing member 31 and the first auxiliary pressing member 45. The first pressing member 31 is disposed on the Y (+) direction side with respect to the second contact portion 52, and the second auxiliary pressing member 46 is disposed on the Y (−) direction side with respect to the second contact portion 52. The wiper 28 is pressed toward the second contact portion 52 by the first pressing member 31 and the second auxiliary pressing member 46.

第１押圧部材３１及び第１補助押圧部材４５によって、ワイパー２８が第１接触部５１側に押圧されると、第１押圧部材３１及び第１補助押圧部材４５のいずれかによって、ワイパー２８が第１接触部５１側に押圧される場合と比べて、ワイパー２８は、第１接触部５１の全体に接触することができ、第１接触部５１に付着したインクの全体を適正に拭き取ることができ、第１接触部５１にインクが残存しにくくなる。
第１押圧部材３１及び第２補助押圧部材４６によって、ワイパー２８が第２接触部５２側に押圧されると、第１押圧部材３１及び第２補助押圧部材４６のいずれかによって、ワイパー２８が第２接触部５２側に押圧される場合と比べて、ワイパー２８は、第２接触部５２の全体に接触することができ、第２接触部５２に付着したインクの全体を適正に拭き取ることができ、第２接触部５２にインクが残存しにくくなる。
このように、補助押圧部材４５，４６を設けることによって、接触部５１，５２に付着したインクの全体を適正に拭き取ることができ、接触部５１，５２にインクが残存しにくくなる。 When the wiper 28 is pressed toward the first contact portion 51 by the first pressing member 31 and the first auxiliary pressing member 45, the wiper 28 is pressed by the first pressing member 31 or the first auxiliary pressing member 45. The wiper 28 can be in contact with the entire first contact portion 51 and can wipe the entire ink attached to the first contact portion 51 properly, as compared with the case where the first contact portion 51 is pressed. The ink hardly remains in the first contact portion 51.
When the wiper 28 is pressed toward the second contact portion 52 by the first pressing member 31 and the second auxiliary pressing member 46, the wiper 28 is pressed by the first pressing member 31 or the second auxiliary pressing member 46. The wiper 28 can be in contact with the entire second contact portion 52 as compared with the case where the second contact portion 52 is pressed, and the entire ink attached to the second contact portion 52 can be wiped off properly. The ink hardly remains in the second contact portion 52.
As described above, by providing the auxiliary pressing members 45 and 46, the whole of the ink attached to the contact portions 51 and 52 can be wiped out properly, and the ink hardly remains in the contact portions 51 and 52.

第２押圧部材３２のＹ方向の長さは、開口面２７のＹ方向の長さよりも長く、Ｙ方向において、第２押圧部材３２は、開口面２７の全体を押圧することができる。よって、Ｙ方向において、第２押圧部材３２によって開口面２７側に押圧されるワイパー２８は、開口面２７の全体に接触する。
従って、ワイピング装置４０のＸ方向の移動が１回実施されると、第２押圧部材３２によって開口面２７側に押圧されるワイパー２８は、開口面２７の全体を拭くことができるので、開口面２７に付着したインクの全体を適正に拭き取ることができる。
仮に、第２押圧部材３２のＹ方向の長さが、開口面２７のＹ方向の長さよりも短く、Ｙ方向において、第２押圧部材３２によって開口面２７側に押圧されるワイパー２８が、開口面２７の一部に接触する場合、ワイピング装置４０のＸ方向の移動を複数回実施して、ワイパー２８は、開口面２７の全体を拭くことになる。開口面２７に付着したインクの全体を適正に拭き取るために、ワイピング装置４０のＸ方向の移動回数が多くなる。
すなわち、第２押圧部材３２のＹ方向の長さが開口面２７のＹ方向の長さよりも長い構成は、第２押圧部材３２のＹ方向の長さが開口面２７のＹ方向の長さよりも短い構成と比べて、ワイピング装置４０のＸ方向の移動回数が少なくなり、短時間で開口面２７に付着したインクの全体を適正に拭き取ることができる。 The length of the second pressing member 32 in the Y direction is longer than the length of the opening surface 27 in the Y direction, and the second pressing member 32 can press the entire opening surface 27 in the Y direction. Therefore, the wiper 28 pressed to the opening surface 27 side by the second pressing member 32 in the Y direction contacts the entire opening surface 27.
Therefore, when the movement of the wiping device 40 in the X direction is performed once, the wiper 28 pressed to the side of the opening surface 27 by the second pressing member 32 can wipe the entire opening surface 27. The entire ink adhering to 27 can be wiped off properly.
Temporarily, the length of the second pressing member 32 in the Y direction is shorter than the length of the opening 27 in the Y direction, and the wiper 28 pressed against the opening 27 by the second pressing member 32 in the Y direction is opened. When contacting a part of the surface 27, the wiper 28 wipes the entire opening surface 27 by performing the movement of the wiping device 40 in the X direction a plurality of times. In order to wipe the whole of the ink adhering to the opening surface 27 properly, the number of times of movement of the wiping device 40 in the X direction increases.
That is, in the configuration in which the length in the Y direction of the second pressing member 32 is longer than the length in the Y direction of the opening surface 27, the length in the Y direction of the second pressing member 32 is longer than the length in the Y direction of the opening surface 27. As compared with the short configuration, the number of movements of the wiping device 40 in the X direction is reduced, and the whole of the ink attached to the opening surface 27 can be appropriately wiped in a short time.

図６は、図４に対応する図であり、ワイピング装置の他の状態を示す概略図である。
なお、図４は、ワイパー２８が開口面２７及び接触部３５を払拭している状態を示す概略図である。図６は、ワイパー２８が開口面２７及び接触部３５を払拭する前の状態（ワイピング動作が実施される前の状態）を示す概略図である。ワイピング動作では、ワイピング位置において、図６に示す状態から図４に示す状態に移行し、ワイパー２８が開口面２７及び接触部３５を払拭する。 FIG. 6 is a view corresponding to FIG. 4 and is a schematic view showing another state of the wiping device.
In addition, FIG. 4 is schematic which shows the state which the wiper 28 wipes the opening surface 27 and the contact part 35. FIG. FIG. 6 is a schematic view showing a state before the wiper 28 wipes the opening surface 27 and the contact portion 35 (state before the wiping operation is performed). In the wiping operation, in the wiping position, the state shown in FIG. 6 is shifted to the state shown in FIG. 4, and the wiper 28 wipes the opening surface 27 and the contact portion 35.

図６に示すように、キャップ２２がワイピング位置に配置され、ワイピング動作が実行される前の状態において、Ｙ方向側から見た場合、第１押圧部材３１とキャップ２２（接触部３５）とは一部が重なるように配置され、第２押圧部材３２と液体噴射ヘッド１３（開口面２７）とは一部が重なるように配置される。
ワイピング動作が実行される前の状態において、Ｙ方向側から見た場合に、第２押圧部材３２と液体噴射ヘッド１３（開口面２７）とが重なる部分のＺ方向の寸法Ｌ１は、「重力方向における第２押圧部材と開口面とのオーバーラップ量」の一例であり、以降、開口面側オーバーラップ量Ｌ１と称す。ワイピング動作が実行される前において、Ｙ方向側から見た場合に、第１押圧部材３１とキャップ２２（接触部３５）とが重なる部分のＺ方向の寸法Ｌ２は、「重力方向における第１押圧部材と接触部とのオーバーラップ量」の一例であり、以降、接触部側オーバーラップ量Ｌ２と称す。
本実施形態では、ワイパー２８が液体噴射ヘッド１３に対して移動（相対移動）する前の状態において、接触部側オーバーラップ量Ｌ２は、開口面側オーバーラップ量Ｌ１よりも大きく設定されている。 As shown in FIG. 6, when viewed from the Y direction in a state in which the cap 22 is disposed at the wiping position and the wiping operation is performed, the first pressing member 31 and the cap 22 (contact portion 35) are The second pressing member 32 and the liquid jet head 13 (opening surface 27) are disposed so as to partially overlap with each other.
In the state before the wiping operation is performed, when viewed from the Y direction side, the dimension L1 of the Z direction of the portion where the second pressing member 32 and the liquid jet head 13 (opening surface 27) overlap is “gravity direction In the following, the overlap amount between the second pressing member and the opening surface is referred to as “opening surface side overlap amount L1”. Before the wiping operation is performed, the dimension L2 in the Z direction of the overlapping portion of the first pressing member 31 and the cap 22 (contact portion 35) when viewed from the Y direction side is “a first pressure in the gravity direction This is an example of the “overlap amount between the member and the contact portion”, and is hereinafter referred to as the contact portion side overlap amount L2.
In the present embodiment, in the state before the wiper 28 moves (relatively moves) with respect to the liquid jet head 13, the contact portion side overlap amount L2 is set larger than the opening surface side overlap amount L1.

キャップ２２において、接触部３５は、本体部５５から開口面２７側に張り出した凸部であり、接触部３５（凸部）のＺ方向寸法はＨ１である。本実施形態では、接触部側オーバーラップ量Ｌ２は、接触部３５（凸部）のＺ方向寸法Ｈ１よりも大きく設定されている。液体噴射ヘッド１３において、開口面２７は、ノズル１２が開口する面（平面）であり、開口面２７から適正にインクが噴射されるように、余分な凹凸が設けられていない。
このため、キャップ２２は、液体噴射ヘッド１３と比べて大きい凹凸を有する。以降の説明では、キャップ２２の接触部３５を大きい凹凸と称し、液体噴射ヘッド１３の開口面２７を小さい凹凸と称す場合がある。 In the cap 22, the contact portion 35 is a convex portion protruding from the main body portion 55 toward the opening surface 27, and the dimension in the Z direction of the contact portion 35 (convex portion) is H1. In the present embodiment, the contact portion side overlap amount L2 is set to be larger than the Z-direction dimension H1 of the contact portion 35 (convex portion). In the liquid jet head 13, the opening surface 27 is a surface (flat surface) where the nozzle 12 opens, and no excessive unevenness is provided so that the ink is properly ejected from the opening surface 27.
For this reason, the cap 22 has large unevenness as compared with the liquid jet head 13. In the following description, the contact portion 35 of the cap 22 may be referred to as large unevenness, and the opening surface 27 of the liquid jet head 13 may be referred to as small unevenness.

押圧手段３７，３８はＺ方向に伸縮可能であり、ワイピング装置４０がＸ方向に移動すると、押圧手段３７，３８は、対象物（開口面２７、接触部３５）の凹凸に追随してＺ方向に伸縮し、さらに、押圧手段３７，３８によって押圧される押圧部材３１，３２も、対象物（開口面２７、接触部３５）の凹凸に追随して変形する。
対象物の凹凸に追随して、押圧手段３７，３８及び押圧部材３１，３２がＺ方向に伸縮する範囲は、オーバーラップ量Ｌ１，Ｌ２に依存し、オーバーラップ量Ｌ１，Ｌ２が大きくなると押圧手段３７，３８及び押圧部材３１，３２がＺ方向に伸縮する範囲は広くなり、オーバーラップ量Ｌ１，Ｌ２が小さくなると押圧手段３７，３８及び押圧部材３１，３２がＺ方向に伸縮する範囲は狭くなる。 The pressing means 37 and 38 can expand and contract in the Z direction, and when the wiping device 40 moves in the X direction, the pressing means 37 and 38 follow the unevenness of the object (the opening surface 27, the contact portion 35) to Z direction Further, the pressing members 31, 32 pressed by the pressing means 37, 38 are deformed following the unevenness of the object (the opening surface 27, the contact portion 35).
The range in which the pressing means 37 and 38 and the pressing members 31 and 32 expand and contract in the Z direction following the unevenness of the object depends on the overlap amounts L1 and L2, and when the overlap amounts L1 and L2 increase, the pressing means The range in which 37 and 38 and the pressing members 31 and 32 expand and contract in the Z direction is wide, and the range in which the pressing means 37 and 38 and the pressing members 31 and 32 extend and contract in the Z direction is narrow when the overlap amounts L1 and L2 decrease. .

このため、大きい凹凸（接触部３５）と第１押圧部材３１とが重なる部分のＺ方向の寸法Ｌ２（接触部側オーバーラップ量Ｌ２）が、小さい凹凸（開口面２７）と第２押圧部材３２とが重なる部分のＺ方向の寸法Ｌ１（開口面側オーバーラップ量Ｌ１）と比べて大きく設定されると、第１押圧部材３１によって押圧されるワイパー２８は、大きい凹凸（接触部３５）に適正に接触するようになる。加えて、接触部側オーバーラップ量Ｌ２が、凸部（接触部３５）のＺ方向寸法Ｈ１よりも大きく設定されると、第１押圧部材３１は、接触部３５の輪郭に沿ってＺ方向に伸縮し、第１押圧部材３１によって押圧されるワイパー２８も、接触部３５の輪郭に沿ってＺ方向に伸縮し、接触部３５の全体に接触することができる。
ワイパー２８は、大きい凹凸（接触部３５）の全体に接触するので、大きい凹凸（接触部３５）に付着したインクの全体を適正に拭き取ることができる。 For this reason, the dimension L2 (contact portion side overlap amount L2) in the Z direction of a portion where the large unevenness (contact portion 35) and the first pressing member 31 overlap is small unevenness (opening surface 27) and the second pressing member 32. The wiper 28 pressed by the first pressing member 31 is suitable for large unevenness (contact portion 35) if it is set larger than the dimension L1 (opening surface side overlap amount L1) in the Z direction of the overlapping portion of Will come into contact with In addition, when the contact portion side overlap amount L2 is set larger than the dimension H1 of the convex portion (contact portion 35) in the Z direction, the first pressing member 31 follows the contour of the contact portion 35 in the Z direction. The wiper 28 that is expanded and contracted and pressed by the first pressing member 31 can also expand and contract in the Z direction along the contour of the contact portion 35 and contact the entire contact portion 35.
The wiper 28 contacts the entire large unevenness (contact portion 35), so that the entire ink attached to the large unevenness (contact portion 35) can be wiped off properly.

さらに、開口面側オーバーラップ量Ｌ１が接触部側オーバーラップ量Ｌ２と比べて小さく設定されても、第２押圧部材３２によって押圧されるワイパー２８は、小さい凹凸（開口面２７）に適正に接触し、小さい凹凸（開口面２７）に付着したインクを適正に拭き取ることができる。   Furthermore, even if the opening surface side overlap amount L1 is set smaller than the contact portion side overlap amount L2, the wiper 28 pressed by the second pressing member 32 properly contacts small unevenness (opening surface 27) The ink adhering to the small unevenness (opening surface 27) can be wiped off properly.

本発明は、上記実施形態に限られるものではなく、請求の範囲及び明細書全体から読み取れる発明の要旨あるいは思想に反しない範囲で適宜変更可能であり、上記実施形態以外にも様々な変形例が考えられる。以下、変形例を挙げて説明する。   The present invention is not limited to the above embodiment, but can be appropriately modified without departing from the scope and spirit of the invention as can be read from the claims and the specification as a whole, and various modifications other than the above embodiment can be made. Conceivable. Hereinafter, a modification is given and demonstrated.

（変形例１）
上記実施形態では、ワイピング装置４０のＸ方向の移動が１回実施されると、接触部３５に付着したインク、及び開口面２７に付着したインクの両方が、ワイパー２８によって一括で拭き取られるが、この構成に限定されない。
例えば、ワイピング装置４０のＸ方向の移動を２回実施し、接触部３５に付着したインク、及び開口面２７に付着したインクが、別々に拭き取られる構成であってもよい。例えば、ワイピング装置４０がＸ方向に１回移動し、接触部３５に付着したインクを拭き取り、さらに、ワイピング装置４０がＸ方向に１回移動し、開口面２７に付着したインクを拭き取る構成であってもよい。 (Modification 1)
In the above embodiment, when movement of the wiping device 40 in the X direction is performed once, both the ink attached to the contact portion 35 and the ink attached to the opening surface 27 are wiped off collectively by the wiper 28. Not limited to this configuration.
For example, the movement of the wiping device 40 in the X direction may be performed twice, and the ink attached to the contact portion 35 and the ink attached to the opening surface 27 may be wiped separately. For example, the wiping device 40 moves in the X direction once to wipe the ink adhering to the contact portion 35, and the wiping device 40 moves in the X direction once to wipe the ink adhering to the opening surface 27. May be

（変形例２）
上記実施形態では、ワイピング装置４０を払拭方向（＋Ｘ方向）に１回移動させて、ワイパー２８が接触部３５に付着したインク及び開口面２７に付着したインクを拭き取るワイピング動作が実施される。すなわち、ワイピング装置４０を１方向に１回移動させて、ワイパー２８が接触部３５に付着したインク及び開口面２７に付着したインクを拭き取るワイピング動作が実施される。
ワイピング装置４０を複数回移動させて、接触部３５に付着したインク及び開口面２７に付着したインクを拭き取るワイピング動作が実施されてもよい。
例えば、ワイピング装置４０を払拭方向（＋Ｘ方向）及び払拭方向と反対方向（−Ｘ方向）に往復移動させ、ワイパー２８が接触部３５に付着したインク及び開口面２７に付着したインクを拭き取るワイピング動作が実施されてもよい。
例えば、ワイピング装置４０を払拭方向（＋Ｘ方向）に移動させ、ワイピング装置４０を元の位置に戻した後、再度払拭方向（＋Ｘ方向）に移動させ、ワイパー２８が接触部３５に付着したインク及び開口面２７に付着したインクを拭き取るワイピング動作が実施されてもよい。 (Modification 2)
In the above embodiment, the wiping device 40 is moved once in the wiping direction (+ X direction), and the wiper 28 wipes the ink attached to the contact portion 35 and the ink attached to the opening surface 27. That is, the wiping device 40 is moved once in one direction, and a wiping operation is performed in which the wiper 28 wipes the ink attached to the contact portion 35 and the ink attached to the opening surface 27.
A wiping operation may be performed in which the wiping device 40 is moved a plurality of times to wipe the ink attached to the contact portion 35 and the ink attached to the opening surface 27.
For example, the wiping device 40 is moved back and forth in the wiping direction (+ X direction) and the direction opposite to the wiping direction (−X direction) to wipe the ink attached to the contact portion 35 and the ink attached to the opening 27 May be implemented.
For example, after the wiping device 40 is moved in the wiping direction (+ X direction) and the wiping device 40 is returned to the original position, the wiping device 40 is moved again in the wiping direction (+ X direction) and the wiper 28 adheres to the contact portion 35 A wiping operation may be performed to wipe the ink attached to the opening surface 27.

さらに、ワイピング装置４０を払拭方向（＋Ｘ方向）に移動させて、ワイパー２８が接触部３５に付着したインク及び開口面２７に付着したインクを拭き取る最初のワイピング動作を実施し、次にワイピング装置４０を払拭方向と反対方向（−Ｘ方向）に移動させて、ワイパー２８が接触部３５に付着したインク及び開口面２７に付着したインクを拭き取る次のワイピング動作を実施してもよい。   Furthermore, the wiping device 40 is moved in the wiping direction (+ X direction) to perform the first wiping operation in which the wiper 28 wipes the ink attached to the contact portion 35 and the ink attached to the opening surface 27. May be moved in the direction opposite to the wiping direction (−X direction), and the following wiping operation may be performed in which the wiper 28 wipes the ink attached to the contact portion 35 and the ink attached to the opening surface 27.

（変形例３）
接触部３５に付着したインク、及び開口面２７に付着したインクの両方が、ワイパー２８によってより適正に拭き取られるように、ワイピング能力を高める材料（例えば、洗浄液）をワイパー２８に含有させ、ワイピング能力を高める材料（例えば、洗浄液）を含有するワイパー２８が、接触部３５に付着したインク、及び開口面２７に付着したインクを拭きとる構成であってもよい。
さらに、ワイピング能力を高める材料（例えば、洗浄液）を収納する収納部と、ワイピング動作時にワイピング能力を高める材料をワイパー２８に供給する供給部とを設け、当該供給部がワイピング能力を高める材料をワイパー２８に供給しながら、ワイパー２８が、接触部３５に付着したインク及び開口面２７に付着したインクを拭きとる構成であってもよい。 (Modification 3)
The wiper 28 contains a material (for example, a cleaning liquid) that enhances the wiping ability so that both the ink attached to the contact portion 35 and the ink attached to the opening surface 27 can be wiped more properly by the wiper 28, The wiper 28 containing a material (for example, a cleaning liquid) that enhances the performance may be configured to wipe the ink attached to the contact portion 35 and the ink attached to the opening surface 27.
Furthermore, a storage unit for storing a material (for example, a cleaning solution) for enhancing the wiping capability and a supply unit for supplying a material for enhancing the wiping capability during the wiping operation to the wiper 28 are provided. The wiper 28 may be configured to wipe the ink attached to the contact portion 35 and the ink attached to the opening surface 27 while supplying the ink 28.

（変形例４）
開口面２７と接触部３５との間の距離が短くなると、押圧手段３７，３８及び押圧部材３１，３２は大きく伸縮し、押圧部材３１，３２がワイパー２８を開口面２７側及び接触部３５側に押圧する力は強くなる。開口面２７と接触部３５との間の距離が長くなると、押圧手段３７，３８及び押圧部材３１，３２は小さく伸縮し、押圧部材３１，３２がワイパー２８を開口面２７側及び接触部３５側に押圧する力は弱くなる。
例えば、インクが増粘し、インクが増粘していない場合と比べて、インクが開口面２７及び接触部３５に強く付着している場合、開口面２７と接触部３５との間の距離を短くし、押圧部材３１，３２がワイパー２８を開口面２７側及び接触部３５側に押圧する力を強くすると、ワイパー２８は強く付着したインクを拭き取りやすくなる。
例えば、インクが増粘していなく、インクが増粘する場合と比べて、インクが開口面２７及び接触部３５に弱く付着している場合、開口面２７と接触部３５との間の距離を短くし、押圧部材３１，３２がワイパー２８を開口面２７側及び接触部３５側に押圧する力を強くしすぎると、開口面２７及び接触部３５に機械的ダメージが生じるおそれがある。このような場合、開口面２７と接触部３５との間の距離を長くし、押圧部材３１，３２がワイパー２８を開口面２７側及び接触部３５側に押圧する力を弱くし、開口面２７及び接触部３５に機械的ダメージを生じにくくしつつ、ワイパー２８が開口面２７及び接触部３５に弱く付着したインクを拭き取ることが好ましい。
さらに、インクが開口面２７及び接触部３５に強く付着した部分や、インクが開口面２７及び接触部３５に弱く付着した部分が混在する場合、インクの付着状態に応じて、開口面２７と接触部３５との間の距離を調整することが好ましい。
さらに、ワイパー２８が開口面２７及び接触部３５に付着したインクを拭き取る場合、開口面２７と接触部３５との間の距離が、ワイパー２８が液体噴射ヘッド１３に対して移動（相対移動）する途中で変更可能であると、インクの付着状態に応じて開口面２７と接触部３５との間の距離を調整することによって、ワイパー２８は、開口面２７及び接触部３５に付着したインクをより適正に拭き取ることができる。
さらに、開口面２７と接触部３５との間の距離が大きく変動する場合、開口面２７と接触部３５との間の距離の変動が小さくなるように、ワイパー２８が液体噴射ヘッド１３に対して移動（相対移動）する途中で、開口面２７と接触部３５との間の距離を変更すると、ワイパー２８が開口面２７及び接触部３５に押圧される力が均一になり、ワイパー２８は、開口面２７及び接触部３５に付着したインクを均一に拭き取ることができる。 (Modification 4)
When the distance between the opening surface 27 and the contact portion 35 becomes short, the pressing means 37, 38 and the pressing members 31, 32 expand and contract greatly, and the pressing members 31, 32 open the wiper 28 on the opening surface 27 side and the contact portion 35 side. The force to press on becomes stronger. When the distance between the opening surface 27 and the contact portion 35 becomes long, the pressing means 37, 38 and the pressing members 31, 32 expand and contract small, and the pressing members 31, 32 open the wiper 28 to the opening surface 27 side and the contact portion 35 side. The pressing force is weak.
For example, when the ink adheres strongly to the opening surface 27 and the contact portion 35 as compared to the case where the ink is thickened and the ink is not thickened, the distance between the opening surface 27 and the contact portion 35 is If the pressing members 31 and 32 shorten the pressing force to press the wiper 28 toward the opening surface 27 and the contact portion 35, the wiper 28 can wipe off the strongly attached ink.
For example, when the ink is weakly attached to the opening surface 27 and the contact portion 35 as compared to the case where the ink is not thickened and the ink is thickened, the distance between the opening surface 27 and the contact portion 35 is If the pressing members 31, 32 press the wiper 28 toward the opening surface 27 and the contact portion 35 too much, mechanical damage may occur to the opening surface 27 and the contact portion 35. In such a case, the distance between the opening surface 27 and the contact portion 35 is increased, and the force by which the pressing members 31 and 32 press the wiper 28 toward the opening surface 27 and the contact portion 35 is weakened. And it is preferable to wipe off the ink which the wiper 28 weakly adhered to the opening surface 27 and the contact portion 35 while making mechanical damage to the contact portion 35 less likely to occur.
Furthermore, when there are mixed portions where the ink strongly adheres to the opening surface 27 and the contact portion 35 and portions where the ink adheres weakly to the opening surface 27 and the contact portion 35, contact is made with the opening surface 27 according to the ink adhesion state. It is preferable to adjust the distance to the part 35.
Furthermore, when the wiper 28 wipes off the ink attached to the opening surface 27 and the contact portion 35, the distance between the opening surface 27 and the contact portion 35 moves (relative movement) to the liquid jet head 13 By adjusting the distance between the opening surface 27 and the contact portion 35 according to the adhesion state of the ink, the wiper 28 can make the ink attached to the opening surface 27 and the contact portion 35 more changeable in the middle. It can wipe off properly.
Furthermore, when the distance between the opening surface 27 and the contact portion 35 largely fluctuates, the wiper 28 holds the liquid jet head 13 so that the fluctuation of the distance between the opening surface 27 and the contact portion 35 becomes smaller. If the distance between the opening surface 27 and the contact portion 35 is changed during movement (relative movement), the force by which the wiper 28 is pressed against the opening surface 27 and the contact portion 35 becomes uniform, and the wiper 28 opens The ink adhering to the surface 27 and the contact portion 35 can be wiped out uniformly.

（変形例５）
上記実施形態では、接触部３５（キャップ２２）及び開口面２７（液体噴射ヘッド１３）は静止しており、ワイピング装置４０（ワイパー２８）がＸ方向に移動することによって、ワイパー２８が接触部３５及び開口面２７に付着したインクを拭き取るワイピング動作が実施される。
例えば、ワイピング装置４０（ワイパー２８）が静止し、接触部３５（キャップ２２）及び開口面２７（液体噴射ヘッド１３）が移動することによって、ワイパー２８が接触部３５及び開口面２７に付着したインクを拭き取るワイピング動作が実施されてもよい。
例えば、ワイピング装置４０（ワイパー２８）、並びに接触部３５（キャップ２２）及び開口面２７（液体噴射ヘッド１３）の両方が移動することによって、ワイパー２８が接触部３５及び開口面２７に付着したインクを拭き取るワイピング動作が実施されてもよい。
すなわち、ワイパー２８と液体噴射ヘッド１３とが相対移動し、ワイパー２８とキャップ２２とが相対移動することによって、接触部３５及び開口面２７に付着したインクが、ワイパー２８によって拭き取られる構成であってもよい。 (Modification 5)
In the above-described embodiment, the contact portion 35 (cap 22) and the opening surface 27 (liquid ejection head 13) are stationary, and the wiper 28 moves in the X direction by moving the wiping device 40 (wiper 28). And the wiping operation which wipes off the ink adhering to the opening surface 27 is implemented.
For example, the wiping device 40 (wiper 28) comes to rest, and the contact portion 35 (cap 22) and the opening surface 27 (liquid jet head 13) move, whereby the wiper 28 adheres to the contact portion 35 and the opening surface 27 A wiping operation may be performed to wipe the
For example, the wiper 28 adheres to the contact portion 35 and the opening surface 27 by moving the wiping device 40 (wiper 28) and both the contact portion 35 (cap 22) and the opening surface 27 (liquid jet head 13). A wiping operation may be performed to wipe the
That is, when the wiper 28 and the liquid jet head 13 move relative to each other, and the wiper 28 and the cap 22 move relative to each other, the ink attached to the contact portion 35 and the opening surface 27 is wiped off by the wiper 28. May be

（変形例６）
上記実施形態では、液体噴射ヘッド１３は、装置本体に対して固定されたラインヘッドであった。例えば、液体噴射ヘッド１３は、往復移動するキャリッジに搭載され、移動しながら媒体Ｓにインクを吐出するシリアルヘッドであってもよい。 (Modification 6)
In the above embodiment, the liquid jet head 13 is a line head fixed to the apparatus main body. For example, the liquid jet head 13 may be a serial head which is mounted on a reciprocating carriage and discharges the ink onto the medium S while moving.

１０…インク噴射領域、１１…液体噴射装置、１２…ノズル、１３…液体噴射ヘッド、１４…保持部、１５…液体収容体、１６…供給流路、１７…搬送ローラー、１８…搬送ベルト、１９…収容カセット、２０…保持トレイ、２１…メンテナンス装置、２２…キャップ、２３…廃液流路、２４…吸引ポンプ、２５…移動機構、２６…廃液収容体、２７…開口面、２８…ワイパー、２９…送り出しローラー、３０…巻き取りローラー、３１…第１押圧部材、３２…第２押圧部材、３３…巻き取りモーター、３４…送り出しモーター、３５…接触部、３７…第１押圧手段、３８…第２押圧手段、３９…ガイド軸、４０…ワイピング装置、４１…第１ローラー対、４２…第２ローラー対、４３…第３ローラー対、４４…第４ローラー対、４５…第１補助押圧部材、４６…第２補助押圧部材、４７…第１補助押圧手段、４８…第２補助押圧手段、４９…第１面、５０…第２面、５１…第１接触部、５２…第２接触部、５３…第３接触部、５４…第４接触部、５５…本体部、６０…移動手段、１００…制御部。   DESCRIPTION OF SYMBOLS 10 ... Ink ejection area | region 11 ... Liquid ejection apparatus, 12 ... Nozzle, 13 ... Liquid ejection head, 14 ... Holding part, 15 ... Liquid container, 16 ... Supply flow path, 17 ... Transport roller, 18 ... Transport belt, 19 ... Containment cassette 20 ... Holding tray 21 ... Maintenance device 22 ... Cap 23 ... Waste liquid flow path 24 24 ... Suction pump 25 ... Movement mechanism 26 ... Waste liquid container 27 ... Opening face 28 ... Wiper 29 ... Delivery roller, 30 ... Winding roller, 31 ... First pressing member, 32 ... Second pressing member, 33 ... Winding motor, 34 ... Delivery motor, 35 ... Contact portion, 37 ... First pressing means, 38 ... first 2 pressing means, 39: guide shaft, 40: wiping device, 41: first roller pair, 42: second roller pair, 43: third roller pair, 44: fourth roller pair, 45: first Auxiliary pressing member 46: second auxiliary pressing member 47: first auxiliary pressing means 48: second auxiliary pressing means 49: first surface 50: second surface 51: first contact portion 52: second 2 contact portion, 53: third contact portion, 54: fourth contact portion, 55: main body portion, 60: moving means, 100: control portion.

Claims (7)

液体を噴射するノズルが開口する開口面を有する液体噴射ヘッドと、
前記開口面に接触部が接触することで前記ノズルが開口する閉空間を形成可能な閉空間形成部材と、
前記液体噴射ヘッドに対して払拭方向に相対移動して、前記開口面および前記接触部に付着した前記液体を吸収可能な払拭部材と、
前記払拭部材を前記接触部側に押圧する第１押圧部材と、
を備え、
前記接触部は、前記払拭方向に交差する幅方向に沿って配置される第１接触部と第２接触部とを有し、
前記第１押圧部材の前記幅方向の長さは、前記第１接触部と前記第２接触部との間隔よりも短いことを特徴とする液体噴射装置。 A liquid jet head having an opening face in which a nozzle for jetting liquid is opened;
A closed space forming member capable of forming a closed space in which the nozzle is opened by the contact portion contacting the opening surface;
A wiping member capable of absorbing the liquid attached to the opening surface and the contact portion by moving relative to the liquid jet head in the wiping direction;
A first pressing member for pressing the wiping member toward the contact portion;
Equipped with
The contact portion has a first contact portion and a second contact portion disposed along a width direction intersecting the wiping direction,
The liquid jet apparatus according to claim 1, wherein a length of the first pressing member in the width direction is shorter than a distance between the first contact portion and the second contact portion. 前記払拭部材を前記開口面側に押圧する第２押圧部材を備え、
前記第２押圧部材の前記幅方向の長さは、前記開口面の前記幅方向の長さよりも長いことを特徴とする請求項１に記載の液体噴射装置。 And a second pressing member for pressing the wiping member toward the opening surface side,
2. The liquid ejecting apparatus according to claim 1, wherein the length in the width direction of the second pressing member is longer than the length in the width direction of the opening surface. 前記第１押圧部材との間で前記第１接触部を挟む第１補助押圧部材と、前記第１押圧部材との間で前記第２接触部を挟む第２補助押圧部材とを有することを特徴とする請求項１または２に記載の液体噴射装置。   A first auxiliary pressing member sandwiching the first contact portion with the first pressing member, and a second auxiliary pressing member sandwiching the second contact portion with the first pressing member are characterized. The liquid injection device according to claim 1 or 2. 前記払拭部材が前記液体噴射ヘッドに対して相対移動する前の状態において、重力方向における前記第１押圧部材と前記接触部とのオーバーラップ量は前記第２押圧部材と前記開口面とのオーバーラップ量よりも大きく設定されていることを特徴とする請求項２に記載の液体噴射装置。   In a state before the wiping member moves relative to the liquid jet head, the overlap amount between the first pressing member and the contact portion in the gravity direction is the overlap between the second pressing member and the opening surface The liquid ejecting apparatus according to claim 2, wherein the liquid ejecting apparatus is set larger than the amount. 前記開口面と前記接触部との間の距離は、前記払拭部材が前記液体噴射ヘッドに対して相対移動する途中で変更可能であることを特徴とする請求項１から請求項４のうち何れか一項に記載の液体噴射装置。   5. The distance between the opening surface and the contact portion can be changed during the relative movement of the wiping member relative to the liquid jet head. The liquid injection device according to one item. 前記第１押圧部材は前記第２押圧部材よりも前記払拭方向の前方側に配置されていることを特徴とする請求項２から請求項５のうち何れか一項に記載の液体噴射装置。   The liquid ejecting apparatus according to any one of claims 2 to 5, wherein the first pressing member is disposed forward of the second pressing member in the wiping direction. 前記払拭部材は、前記開口面を払拭する第１面と、前記第１面の反対側の面であり前記接触部を払拭する第２面とを有することを特徴とする請求項１から請求項６のうち何れか一項に記載の液体噴射装置。   The said wiping member has a 1st surface which wipes off the said opening surface, and a 2nd surface which is a surface on the opposite side of the said 1st surface, and wipes off the said contact part. 6. The liquid ejecting apparatus according to any one of 6.
JP2017245973A 2017-12-22 2017-12-22 Liquid jet device Pending JP2019111705A (en)

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