Liquid ejection apparatus and a recovery method thereof

Details Liquid ejection apparatus and a recovery method thereof Liquid ejection apparatus and a recovery method thereof

1997-07-11

2000-05-16

Barlow, John

Incremental printing of symbolic information

Ink jet

Ejector mechanism

347 65, B41J 2165

Patent

active

060626712

ABSTRACT:
An apparatus uses a liquid ejection head including a first liquid passage communicating with an ejection port, a second liquid passage separated from the first liquid passage by a separation wall, and a movable member formed as a part of the separation wall. In the second liquid passage, a thermal energy generation device is arranged at a position opposing to the movable member. The movable member has a free end portion and a fulcrum. Recovery of the first and second liquid passages is performed by suction and/or pressurization. Upon recovery by discharging the liquid in respective liquid passage having higher flow resistance, the pressurizing force and/or the suction force for the liquid passage having higher resistance is set to be greater that the pressurizing force and/or the suction force for the other liquid passage having lower flow resistance.

REFERENCES:
patent: 4480259 (1984-10-01), Kruger et al.
patent: 4646110 (1987-02-01), Ikeda et al.
patent: 4723129 (1988-02-01), Endo et al.
patent: 5030973 (1991-07-01), Nonoyama et al.
patent: 5278585 (1994-01-01), Karz et al.

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