Transfer apparatus

Details Transfer apparatus Transfer apparatus

1977-11-23

1979-10-23

Moses, R. L.

Photocopying

Including fiber optics

250325, 355 3CH, 361225, G03E 1500

Patent

active

041718992

ABSTRACT:
A transfer apparatus is provided of the type in which a toner image formed on a photosensitive member is transferred onto a transfer or copy sheet. The apparatus is used in a copying machine of a so-called delivery type in which the sheet is conveyed using a sheet gripper. During the transfer of a toner image, the appartus applies a corona discharge to the rear side of the sheet which is of the opposite polarity from that of the toner image. The apparatus comprises a diaphragm member for restricting an opening of a transfer charger and disposed between the transfer charger and the photosensitive member, the diaphragm member being movable away from the photosensitive member as the sheet gripper passes between the transfer charger and the photosensitive member.

REFERENCES:
patent: 3409768 (1968-11-01), Whitmore et al.
patent: 3841892 (1974-10-01), Krause et al.
patent: 3877417 (1975-04-01), Jeromin
patent: 4053769 (1977-10-01), Nishikawa

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