Seiko Epson Corporation

Mitsugu Ota

Masaru Takahashi

Hitoshi Hayakawa

Takashi Koase

Hideki Okumura

Takashi Akase

Kojiro Iizuka

A groove wall of a roller support groove opened to both end faces of a pump wheel comprises such a cam face wherein a roller rotates and rolls and is displaced from release operation position a to pump operation position b with rotation of the pump wheel in a pump operation direction from a release operation state and wherein the roller remains immobile and is displaced from the pump operation position b to the release operation position a with rotation of the pump wheel in a release operation direction from a pump operation state.

Tube pump and ink jet recording apparatus using the tube pump

A cap member ( ) which is brought into contact with a nozzle forming surface of a recording head ( ) to seal up the nozzle forming surface, and a wiping member ( ) which may be brought into sliding contact with the nozzle forming surface of the recording head ( ) are disposed on a cap holder ( ). With progress of a cleaning operation in which ink is placed under a negative pressure, and sucked and discharged from the recording head, a cap retaining member ( ) is moved upward and placed to a set state, whereby blocking the slanting and downward movement of the cap member ( ). Then, the wiping member ( ) located on the cap holder ( ) slides on the nozzle forming surface to wipe the nozzle forming surface. To a flushing operation, the cap retaining member ( ) is moved downward and placed to a reset state. In this state, the wiping member ( ) does not slide on the nozzle forming surface.

Ink jet recording device and method of driving and controlling the same

Growing community of inventors

Nagano, Japan

Mitsugu Ota