Ink jet recording apparatus and method including prevention of c

Details Ink jet recording apparatus and method including prevention of c Ink jet recording apparatus and method including prevention of c

1995-08-24

2000-06-27

Barlow, John

Incremental printing of symbolic information

Ink jet

Ejector mechanism

347 23, B41J 2165

Patent

active

060798092

ABSTRACT:
An ink jet recording apparatus comprises a recording head having discharge ports to discharge ink; an ink tank containing ink to be supplied to the recording head; and means for performing predischarges to stabilize ink discharges from the recording head. In this apparatus, the recording head is provided with a discharge unit to discharge plural kinds of ink, and the means for performing predischarges operates predischarges from all the discharge ports, only from the discharges ports in the vicinity of each end of the discharging units, and from all the discharge ports in that order at least for predischarges from discharging unit having relatively thin ink. With such head and means for performing predischarges, it is possible to remove mixed ink after suction recovery with a lesser amount of ink consumption, and execute a high quality recording stably at all times.

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patent: 5504508 (1996-04-01), Hashimoto
patent: 5805180 (1998-09-01), Ebisawa et al.

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