Image forming apparatus and image reading device for use in...

Details Image forming apparatus and image reading device for use in... Image forming apparatus and image reading device for use in...

2006-06-27

2006-06-27

Lamb, Twyler M. (Department: 2622)

Facsimile and static presentation processing

Facsimile

Synchronization

C358S410000, C358S411000, C358S412000

Reexamination Certificate

active

07068397

ABSTRACT:
An image forming apparatus which forms an image on a recording material, which has: a writing section to write according to the image data; an oscillator to generate a synchronized synchronizing clock signal; a spreading clock generator to spread the band of a synchronized reference clock and generate spreading clock signals; and a plurality of control circuits to control the image forming apparatus and each section of the image forming apparatus including a writing control circuit to control the writing section. More than one control circuits in the control circuits other than the writing control circuit are driven by the spreading clock signals, and the writing control circuit is driven by the synchronizing clock signal.

REFERENCES:
patent: 5781074 (1998-07-01), Nguyen et al.
patent: 5872807 (1999-02-01), Booth et al.
patent: 5933587 (1999-08-01), Sakai et al.
patent: 6014063 (2000-01-01), Liu et al.
patent: 6134375 (2000-10-01), Naganawa et al.
patent: 0 739 089 (1996-10-01), None
Patent Abstracts of Japan, vol. 2000, No. 21, Aug. 3, 2001 & JP 2001 092311 A (Canon Inc.), Apr. 6, 2001.

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