Title:
COLOR IMAGE FORMING DEVICE
Document Type and Number:
Japanese Patent JPH1165204
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To obtain, even in the case a plurality of color images are arranged and formed in the direction of the periphery of a transfer body, a color image of good quality having no color slippage and image disturbance by controlling, based on a scanning-start-signal count, the timing of the start of writing an image in each color corresponding to each color image. SOLUTION: A phase difference between a reference signal BH outputted from a home sensor 22 and an SOS signal outputted from an SOS sensor 11 is detected by a control part 100 through timer measurement. Based on a finite difference between a first-color phase difference and a second-color or later-color phase difference, the speed of the rotation of an intermediate transfer belt 16 is increased/decreased with timing used before an image in each color corresponding to a first color-image in the second color or later color is written. Then, an image-writing-timing control part 101 counts the SOS signals continuously from the timing of the output of the SOS signal. At a point in time that the value of the count reaches a given value, writing-start signals PS corresponding to the first and second color-images are caused to rise.
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Inventors:
UKO TSUTOMU
MATSUZAKI YOSHIKI
TAGAWA KOZO
KATO TAKESHI
MATSUZAKI YOSHIKI
TAGAWA KOZO
KATO TAKESHI
Application Number:
JP22868097A
Publication Date:
March 05, 1999
Filing Date:
August 26, 1997
Export Citation:
Assignee:
FUJI XEROX CO LTD
International Classes:
G03G15/00; G03G15/01; G03G21/14; (IPC1-7): G03G15/01; G03G15/00; G03G21/14
Attorney, Agent or Firm:
Kuninori Funabashi
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