Electrophotography – Image formation – Transfer
Patent
1997-08-08
1999-02-02
Lee, S.
Electrophotography
Image formation
Transfer
399299, 399303, G03G 1501
Patent
active
058677593
ABSTRACT:
A color image forming apparatus for superimposing images formed on a plurality of photoconductive elements onto a copy sheet includes a sensor for reading a transfer member and a positional deviation detecting pattern formed on the transfer member, a memory for storing information relating to an area having no roughness, such as a scar, on the transfer member, a detector for detecting the area having no roughness on the basis of a signal read by the sensor and for causing the memory to store the information relating to the area, and a color deviation corrector for correcting color deviation on the basis of the signal generated by the sensor reading the positional deviation detecting pattern. The positional deviation detecting pattern is formed at an area of the transfer member having no roughness.
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Asada Ken-ichirou
Futami Kazuyuki
Isobe Takundo
Ono Hiroshi
Satoh Nobuyuki
Lee S.
Ricoh & Company, Ltd.
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