Image forming apparatus having controlled transfer unit

Details Image forming apparatus having controlled transfer unit Image forming apparatus having controlled transfer unit

1992-12-29

1994-04-05

Pendegrass, Joan H.

Photocopying

Contact printing

Light boxes

355275, G03G 1516

Patent

active

053009843

ABSTRACT:
A transfer device for use in a copying machine includes a rotatable belt to convey a sheet to a transfer station and a conductive brush to provide the sheet with an electric charge so that the sheet is attracted onto the belt. An electric current passing through the brush is detected and a transfer condition for the sheet is controlled on the basis of the detected electric current.

REFERENCES:
patent: 3642362 (1972-02-01), Mueller
patent: 5153653 (1992-10-01), Fuma et al.
patent: 5182598 (1993-01-01), Hara et al.

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