Registration control for an image forming apparatus having an in

Electrophotography – Control of electrophotography process – Control of transfer

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399 71, 399301, G03G 2100

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active

058289267

ABSTRACT:
A full-color image forming apparatus having a photo-conductive belt on which mono-color toner images are respectively formed, an intermediate transfer belt onto which the mono-color toner images are respectively transferred to form a full-color toner image, and a transfer member for transferring the full-color toner image onto a copy sheet. The intermediate transfer belt includes timing marks printed thereon which are detected by a sensor to generate an image forming start signal for each of the first mono-color toner image forming processes. The start signal is generated by a controller only when cleaning of the intermediate transfer belt has completed and the cleaning blade has left therefrom. A timer may be used to delay the starting of the first mono-color image forming process until the transfer belt returns to a normal operating speed after the cleaning blade is removed from the transfer belt.

REFERENCES:
patent: 5499092 (1996-03-01), Sasaki
patent: 5515145 (1996-05-01), Sasaki et al.
Japanese Abstract for 7-77880, published on Mar. 1995.

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