Image forming apparatus having curling device for holding transf

Details Image forming apparatus having curling device for holding transf Image forming apparatus having curling device for holding transf

1996-02-20

1998-04-07

Royer, William J.

Electrophotography

Document handling

Copy

399389, 399390, G03G 1500

Patent

active

057376816

ABSTRACT:
A developing device which develops an electrostatic latent image formed on an image carrier by toner, thereby forming a toner image; a transferring device which transfers the toner image to a fed transfer material; a registration device which provides a timing of feeding the transfer material; a curling device which nips the transfer material so as to produce a curl which is curved in the same direction as the transferring device; a curling control device which controls a nip operation mechanism of the curling device; and mode setting means for instructing the curling control device to operate are disclosed. In accordance with a thick sheet mode set in the mode setting means, the nip operation of the curling device is executed and a dummy transfer period in which the transfer operation of the transferring device is stopped is set.

REFERENCES:
patent: 4475896 (1984-10-01), Bains
patent: 5113226 (1992-05-01), Tadokoro et al.
patent: 5442429 (1995-08-01), Bartholmae et al.
patent: 5565970 (1996-10-01), Suda
patent: 5602636 (1997-02-01), Matsuzawa

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