Liquid ejection device and image forming apparatus

Details Liquid ejection device and image forming apparatus Liquid ejection device and image forming apparatus

2007-08-14

2007-08-14

Huffman, Julian D. (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S012000, C347S013000, C347S017000, C347S055000, C347S019000

Reexamination Certificate

active

11060776

ABSTRACT:
The liquid ejection device comprises: an ejection head including a plurality of nozzles which eject droplets of liquid onto an ejection receiving medium; a liquid flow speed determining device which determines a flow speed of the liquid in each of the nozzles, the liquid flow speed determining device being arranged in each of the nozzles; an ejection abnormality detecting device which detects an ejection abnormality in each of the nozzles according to the flow speed of the liquid determined by the liquid flow speed determining device; an ejection direction deflecting device which deflects a direction of ejection of a droplet of the liquid ejected from each of the nozzles, the ejection direction deflecting device being arranged in each of the nozzles; and an ejection compensation control device which performs control in such a manner that, when an abnormal one of the nozzles having an ejection abnormality is detected by the ejection abnormality detecting device, a compensatory ejection is performed by deflecting a direction of ejection of a droplet of the liquid ejected from one of the nozzles adjacent to the abnormal nozzle, by means of the ejection direction deflecting device.

REFERENCES:
patent: 4768045 (1988-08-01), Koto
patent: 6733100 (2004-05-01), Fujita et al.
patent: 2-235758 (1990-09-01), None
patent: 11-108708 (1999-04-01), None
patent: 11-108708 (1999-04-01), None
patent: 2001-63008 (2001-03-01), None
patent: 2001-315318 (2001-11-01), None
patent: 2002-200753 (2002-07-01), None

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