Ink jet recorder

Details Ink jet recorder Ink jet recorder

1997-07-28

2000-02-15

Le, N.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

347 30, 347 29, B41J 2165

Patent

active

060244356

ABSTRACT:
An ink jet recorder includes a head having ink ejection orifices, a cap for covering the orifices, a suction device for sucking ink from the head covered with the cap, a moving device for moving the cap with respect to the head, and a control device for controlling the moving and suction devices. In order to restore the ink jet head to its initial condition, the suction device is driven to suck the ink collecting between the cap and the head covered with the cap. Thereafter, the control device moves the cap by a slight distance, within the range where the cap is in close contact with the head, a plurality of times in such a direction that the cap retracts from the head. Each time the cap has moved by the distance, the suction device is driven. When the cap separates from the head, air is prevented from being entrained into the ink ejection orifices. Ink is prevented from spilling from the orifices.

REFERENCES:
patent: 5184147 (1993-02-01), MacLane et al.
patent: 5639220 (1997-06-01), Hayakawa
patent: 5663751 (1997-09-01), Holbrook
patent: 5670997 (1997-09-01), Sugimoto et al.

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