Image registration control utilizing real time image...

Details Image registration control utilizing real time image... Image registration control utilizing real time image...

2007-11-20

2007-11-20

Gray, David M. (Department: 2852)

Electrophotography

Image formation

Transfer

C399S302000

Reexamination Certificate

active

11426495

ABSTRACT:
A system and method to control imaging devices in a single-pass multi-color electrophotographic printing machine that includes a photoconductive member having a timing aperture, the photoconductive member moving along a path in the printing machine, and a plurality of imaging devices, each one of the plurality of imaging devices writing a latent image on the photoconductive member. The system further includes a sensor, located adjacent the photoconductive member, to sense the aperture in the photoconductive member as it passes the sensor and generate a signal indicative thereof and a control device and method that provides a timing signal for each of the plurality of imaging devices based on the signal generated by the sensor and a clock signal that is synchronous for all of the imaging devices.

REFERENCES:
patent: 6181887 (2001-01-01), Hughes et al.
patent: 6498913 (2002-12-01), Tooker et al.
patent: 6804485 (2004-10-01), Martin et al.
patent: 6903758 (2005-06-01), Kerxhalli et al.
patent: 2005/0042001 (2005-02-01), Shinohara et al.

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