Electrophotography – Control of electrophotography process – Control of transfer
Patent
1996-08-19
1998-10-27
Ramirez, Nestor R.
Electrophotography
Control of electrophotography process
Control of transfer
399 71, 399301, G03G 2100
Patent
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.
Iwata Nobuo
Katou Shingo
Shio Yutaka
Yabuta Tomonori
Ramirez Nestor R.
Ricoh & Company, Ltd.
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