Electrophotography – Image formation – Photoconductive member
Reexamination Certificate
2008-07-01
2008-07-01
Gray, David M (Department: 2852)
Electrophotography
Image formation
Photoconductive member
C399S300000, C399S302000, C399S308000
Reexamination Certificate
active
07395012
ABSTRACT:
A drum/belt drive starting procedure simultaneous starts the rotation of photosensitive drums and the conveyance of a belt. A drum/belt driving time calculating procedure sets a rotational drive stop time of each photosensitive drum and a conveyance drive stop time of the conveying belt on the basis of a detection result of a reference mark detecting unit. A drum/belt drive stopping procedure stops the rotation of each photosensitive drum and the conveyance of the conveying belt on the basis of a calculation result of the drum/belt driving time calculating procedure. Rotational phase differences of every plural photosensitive drums are set to a predetermined value in the state where rubbing with the belt is small.
REFERENCES:
patent: 6070041 (2000-05-01), Nakayasu et al.
patent: 6360070 (2002-03-01), Taka et al.
patent: 2000-187428 (2000-07-01), None
Gray David M
Oki Data Corporation
Panitch Schwarze Belisario & Nadel LLP
Walsh Ryan D.
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