Electrophotography – Document handling – Copy
Patent
1996-03-20
1999-07-20
Moses, Richard
Electrophotography
Document handling
Copy
399315, 271900, G03G 2100
Patent
active
059266830
ABSTRACT:
The present invention relates to an image forming apparatus which comprises an image bearing member for bearing a toner image, a transfer charger for transferring the toner image from the image bearing member to a transfer material, and an electricity removing member for removing electricity from the transfer material to separate the transfer material from the image bearing member, and wherein, when the electricity is removed from the transfer material by the electricity removing member, a potential level applied to the electricity removing member is selected so that the potential level at end portions of the transfer material becomes greater than the potential level at a central portion of the transfer material along a transfer material shifting direction, thereby improving separation of the transfer material from the image bearing member.
REFERENCES:
patent: 3620615 (1971-11-01), Volkers
patent: 4183653 (1980-01-01), Satomi et al.
patent: 4699499 (1987-10-01), Hoshika et al.
patent: 4728991 (1988-03-01), Takayama et al.
patent: 4739363 (1988-04-01), Hoshika et al.
patent: 5235386 (1993-08-01), Yano et al.
patent: 5541718 (1996-07-01), Oono
Kimizuka Junichi
Nakamori Tomohiro
Yuminamochi Takayasu
Canon Kabushiki Kaisha
Moses Richard
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