Image forming apparatus and ejection determining method

Details Image forming apparatus and ejection determining method Image forming apparatus and ejection determining method

2005-01-06

2008-08-19

Meier, Stephen D. (Department: 2853)

Incremental printing of symbolic information

Ink jet

Controller

Reexamination Certificate

active

07413278

ABSTRACT:
An image forming apparatus includes a light-emitting device which generates determination light which intersects with flight paths of ink droplets ejected from ejection head nozzles; a light receiving device which receives the determination light and outputs a determination signal corresponding to quantity of the determination light received; a drive control device which controls stagger of ejection timing of a nozzle subject to an ejection determination in accordance with ejection timings of other nozzles by controlling the ejection drive device based on image data during a recording ejection operation for forming an image on the recording medium; and an ejection state judging device which judges ejection state of the ink droplets from the nozzle subject to the ejection determination, based on the determination signal obtained from the light receiving device at a determination timing corresponding to the ejection timing of the nozzle subject to the ejection determination.

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Japanese Document Translation of Ariga, Publication No. 2003191453 A.

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