Image forming apparatus

Details Image forming apparatus Image forming apparatus

1985-07-11

1987-09-15

Braun, Fred L.

Photocopying

Including fiber optics

100158R, 162271, 219216, 219469, 355 14FU, 432 60, G03G 1520, G03G 2100

Patent

active

046935878

ABSTRACT:
An image forming apparatus wherein an unfixed image is formed on a recording material at an unfixed image forming station, such as an image transfer station or a station for developing an electrostatic latent image. The unfixed image is fixed by a fixing device including a couple of fixing rollers, one of which is substantially frustoconical. The present invention is effective to avoid the possible disturbance to the image caused by the frustoconical shape of the roller. The preferable arrangement is such that the distance between the image forming station and the nip formed between the rollers is shorter than the length of the recording material, and that the nip is non-parallel with respect to the leading edge of the on-coming recording material. Further, the small diameter side of the conical roller receives the leading edge of the sheet earlier than the large diameter side of the frustoconical roller.

REFERENCES:
patent: 1054721 (1913-03-01), Simon
patent: 2729581 (1956-01-01), Pascoe et al.
patent: 3884623 (1975-05-01), Slack
patent: 3999038 (1976-12-01), Sikes et al.
patent: 4378152 (1983-03-01), Edwards et al.
patent: 4419003 (1983-12-01), Fujie et al.
patent: 4475896 (1984-10-01), Bains

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