Recovery method for ink jet recording head

Details Recovery method for ink jet recording head Recovery method for ink jet recording head

1993-11-03

1995-09-05

Hartary, Joseph W.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

347 32, B41J 2165

Patent

active

054482712

ABSTRACT:
In a suction recovery method in a liquid jet recording apparatus in which the discharge port surface of a recording head is capped by a cap in response to the movement of a carriage carrying the recording head thereon and which is provided with an atmosphere release valve for introducing the atmosphere into the cap after or during the suction of ink from the discharge ports, provision is made of one or more rails disposed on the back of the cap in parallel to the direction of movement of the carriage, and driving means for providing a time difference between the timing of the capping drive of the cap and the valve closing timing of the atmosphere release valve in response to the movement of the carriage to the suction recovery position.

REFERENCES:
patent: 4739340 (1988-04-01), Terasawa
patent: 4745414 (1988-05-01), Okamura et al.
patent: 4893138 (1990-01-01), Terasawa et al.
patent: 4951066 (1990-08-01), Terasawa et al.
patent: 4970534 (1990-11-01), Terasawa et al.
patent: 5086305 (1992-02-01), Terasawa
patent: 5153613 (1992-10-01), Yamaguchi et al.
patent: 5311214 (1994-05-01), Hirasawa et al.

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