Image forming apparatus

Details Image forming apparatus Image forming apparatus

1991-12-16

1994-01-04

Picard, Leo P.

Photocopying

Contact printing

Light boxes

355218, 355274, 355281, G03G 1516

Patent

active

052764915

ABSTRACT:
An image forming apparatus for forming a toner image on a peripheral surface of an image carrying drum and transferring the toner image onto a recording paper. The image forming apparatus comprises a conveyor to convey the recording paper, a register roller to feed the same to the conveyor, transfer unit for transfering the toner image and a pre-charging unit for charging the recording paper before the transferring. A controller of the image forming apparatus controls operation timings of the above units of the image forming apparatus and forms a blank area in the leading portion of the recording paper where no image is formed and no transfer operation is performed to the recording paper by the transfer unit.

REFERENCES:
patent: 3357325 (1967-12-01), Eichorn et al.
patent: 4553149 (1985-11-01), Yano
patent: 4816867 (1989-03-01), Ito
patent: 4905048 (1990-02-01), Suzuki
patent: 4958194 (1990-09-01), Kaieda et al.
Patent Abstracts of Japan, vol. 8, No. (E-279) (1687); Nov. 16, 1984 JPA-59-126366; Jul. 20, 1984.

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