Ink jet recording apparatus

Details Ink jet recording apparatus Ink jet recording apparatus

1997-07-29

2000-06-27

Le, N.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

347 7, 347 23, 347 92, B41J 2165

Patent

active

060798084

ABSTRACT:
An ink jet recording apparatus including an ink jet recording head 1 that is shuttled by a carriage 4 and jets ink droplets in synchronism with a print signal, a capping device 8 to which a negative pressure of a sucking pump 10 is supplied, a first ink tank 12 that communicates with the atmosphere through an opening 14 and contains a printing ink, a second ink tank 13 that contains ink in a degassed condition, a selector valve 16 that selectively connects the first and second ink tanks to the recording head, and a controller 20 that controls the selector valve 16. Ink in the first ink tank 12 or the second ink tank 13 is discharged out of the recording head 1 by causing the capping device 8 to apply negative pressure to the recording head 1 during a cleaning operation of the recording head 1.

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Patent Abstracts of Japan, vol. 006, No. 026, Feb. 16, 1982, JP 56 144162 A (Hitachi Ltd).
Patent Abstracts of Japan, vol. 014, No. 083, Feb. 16, 1990, JP 01 297259 A (Victor Co. of Japan, Ltd.).

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