Sheet stripper for an electrostatographic apparatus

Details Sheet stripper for an electrostatographic apparatus Sheet stripper for an electrostatographic apparatus

1978-07-14

1980-01-15

Braun, Fred L.

Photocopying

Including fiber optics

250324, 271DIG2, 355 3CH, G03G 1500

Patent

active

041836537

ABSTRACT:
The surface of an electrostatic drum (12) is charged and radiated with a light image of an original document (16) to form an electrostatic image which is developed to form a toner image. A copy sheet (18) is moved into engagement with the drum (12) and an electrostatic charge applied thereto to transfer the toner image to the copy sheet (18). A corona discharge unit (27) applies an alternating voltage to the leading edge of the copy sheet (18) to discharge the same and cause the leading edge to separate from the drum (12). Thereafter, the discharge unit (27) applies an asymmetrical alternating voltage which partially discharges the remaining portion of the copy sheet (18) but does not cause the same to separate from the drum (12).

REFERENCES:
patent: 3950680 (1976-04-01), Michaels et al.
patent: 3970381 (1976-07-01), Meagher et al.
patent: 4027960 (1977-07-01), Ladrigan

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