JP2012228854A5

JP2012228854A5 -

Info

Publication number: JP2012228854A5
Application number: JP2011099986A
Authority: JP
Filing date: 2011-04-27
Publication date: 2014-05-22
Anticipated expiration: 2031-04-27

Description

本発明のインクジェット記録装置は、吐出口からインクを吐出可能な記録ヘッドと、前記記録ヘッドの前記吐出口をキャッピング可能なキャップ位置と、前記キャップ位置から離間した退避位置と、の間にて移動可能なキャップと、前記キャップの内部に負圧を導入する負圧導入手段と、を備え、前記キャップが前記吐出口をキャッピングした状態で、前記負圧導入手段が前記キャップの内部に負圧を導入することにより回復動作を実施するインクジェット記録装置であって、前記キャップを前記キャップ位置と前記退避位置とに移動させ、前記キャップを前記退避位置から前記キャップ位置に向かって移動させる一方向の移動力を、前記キャップに伝達する移動手段と、前記退避位置から前記キャップ位置に向かって移動する前記キャップに当接することにより、前記キャップを前記キャップ位置に止めるストッパと、前記キャップの内部と大気とを連通する連通路に備えられた大気開放弁と、前記大気開放弁を開閉する可動体と、を備え、前記可動体は、前記キャップが前記ストッパに当接するまで前記大気開放弁を開いた状態とし、前記キャップが前記ストッパに当接してから前記一方向の移動力により前記大気開放弁を閉じることを特徴とする。
The ink jet recording apparatus of the present invention moves between a recording head capable of ejecting ink from an ejection port, a cap position where the ejection port of the recording head can be capped, and a retracted position separated from the cap position. And a negative pressure introduction means for introducing a negative pressure into the cap, and the negative pressure introduction means applies a negative pressure to the inside of the cap with the cap capping the discharge port. An ink jet recording apparatus that performs a recovery operation by introducing the cap, wherein the cap is moved to the cap position and the retracted position, and the cap is moved from the retracted position toward the cap position. Moving means for transmitting force to the cap; and the cap moving from the retracted position toward the cap position A stopper that stops the cap at the cap position by abutting, an atmosphere release valve provided in a communication path that communicates the inside of the cap with the atmosphere, and a movable body that opens and closes the atmosphere release valve. The movable body keeps the atmosphere release valve open until the cap contacts the stopper, and closes the atmosphere release valve by the one-way moving force after the cap contacts the stopper. Features.

Claims

A recording head capable of discharging ink from the discharge port;
A cap movable between a cap position capable of capping the ejection port of the recording head and a retracted position spaced apart from the cap position;
A negative pressure introducing means for introducing a negative pressure into the cap,
An inkjet recording apparatus that performs a recovery operation by introducing a negative pressure into the cap by the negative pressure introducing means in a state where the cap has capped the discharge port,
Moving means for moving the cap to the cap position and the retracted position, and transmitting a one-way moving force to the cap to move the cap from the retracted position toward the cap position;
A stopper for stopping the cap at the cap position by contacting the cap moving from the retracted position toward the cap position;
An atmosphere release valve provided in a communication passage communicating the inside of the cap and the atmosphere;
A movable body for opening and closing the atmosphere release valve;
With
The movable body keeps the atmosphere release valve in an open state until the cap contacts the stopper, and closes the atmosphere release valve by the moving force in one direction after the cap contacts the stopper. An inkjet recording apparatus.

An elastic body for transmitting the unidirectional movement force to the cap;
The movable body opens and closes the atmosphere release valve by displacing according to the deformation amount of the elastic body, and when the deformation amount of the elastic body due to the moving force in one direction is less than a predetermined amount The atmosphere release valve is opened, and the atmosphere release valve is closed when a deformation amount due to the moving force in one direction exceeds the predetermined amount after the cap contacts the stopper. The ink jet recording apparatus described.

The inkjet recording according to claim 2, wherein the atmosphere release valve includes an opening portion of the communication path and a valve portion that can open and close the opening portion according to the displacement of the movable body. apparatus.

The inkjet recording apparatus according to claim 2, wherein at least one of the opening and the valve is made of an elastic material.

The inkjet recording apparatus according to claim 3 or 4, wherein the valve portion is attached to the movable body via an elastic member.

A slide frame moved by the moving means;
A cap frame which is provided at a fixed position of the slide frame and can come into contact with the stopper and to which the cap is attached;
The inkjet recording apparatus according to any one of claims 1 to 5, further comprising:

The inkjet recording apparatus according to claim 6, wherein the cap frame is detachably attached to the slide frame.

The inkjet recording apparatus according to claim 1, wherein the cap is attached to a cap frame that is moved by the moving unit and is capable of contacting the stopper.