Image forming apparatus

Details Image forming apparatus Image forming apparatus

1989-07-19

1993-04-27

Grimley, A. T.

Photocopying

Contact printing

Light boxes

219216, 355282, 355285, G03G 1520

Patent

active

052066940

ABSTRACT:
An image forming apparatus comprises an image forming portion for forming toner images on a sheet of paper, a fixing portion for fixing the toner images on the sheet of paper by heat, and a counter for counting the number of sheets on which images are fixed from the time of turning on of the power. The image forming portion forms toner images on the paper at a low speed until the counter counts a prescribed number. Since the number of sheets to be fixed is reduced at the start of operation, the temperature of the fixing portion is not very much lowered. Namely, the fixing operation can be started when the temperature of the fixing portion reaches a prescribed value. Therefore, the time required for warming up the image forming forming apparatus can be reduced.

REFERENCES:
patent: 3588445 (1971-06-01), Hopkins
patent: 3926519 (1975-12-01), Rebres
patent: 4324486 (1982-04-01), Nishikawa
patent: 4348102 (1982-09-01), Sessink
patent: 4349269 (1982-09-01), Okada
patent: 4385826 (1983-05-01), Itoh
patent: 4425494 (1984-01-01), Enomoto et al.
patent: 4480908 (1984-11-01), Anzai et al.
patent: 4549803 (1985-10-01), Ohno et al.
patent: 4825242 (1989-04-01), Elter
patent: 4878092 (1989-10-01), Arai

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