Electrophotography – Image formation – Transfer
Patent
1995-02-06
1997-01-14
Beatty, Robert
Electrophotography
Image formation
Transfer
399310, G03G 1514
Patent
active
055945376
ABSTRACT:
An image forming apparatus includes a rotatable image bearing member, and a transfer material support having a circumferential length an integer multiple of that of the image bearing member for supporting and transporting a transfer material. An image formed on the image bearing member is transferred at a transfer position onto the transfer material supported by the transfer material support. The image forming apparatus also includes a press member for pressing the transfer material support against the image bearing member at the transfer position. A varying device varies a relative position between the peripheral surfaces of the image bearing member and the transfer material support without shifting the transfer material support away from the image bearing member. A release device releases pressing of the transfer material support against the image bearing member by the press member when the varying device varies the relative position of the image bearing member and the transfer material support.
REFERENCES:
patent: 4114536 (1978-09-01), Kaneko et al.
patent: 4766463 (1988-08-01), Watanuki et al.
patent: 4862214 (1989-08-01), Kasahara et al.
patent: 5021835 (1991-06-01), Johnson
patent: 5132737 (1992-07-01), Takeda et al.
patent: 5140379 (1992-08-01), Johnson
Beatty Robert
Canon Kabushiki Kaisha
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