Proper charging of donor roll in hybrid development

Details Proper charging of donor roll in hybrid development Proper charging of donor roll in hybrid development

1992-12-07

1994-08-23

Fuller, Benjamin R.

Photocopying

Contact printing

Light boxes

355245, 355259, G03G 1506

Patent

active

053411978

ABSTRACT:
A method and apparatus involving the stopping and starting of the development of images, using hybrid development, to insure proper charging of the donor toner layer. A second (e.g. magnetic brush) roll is used to place toner on the donor roll or remove toner from the donor roll depending upon whether the development of images is stopped or started.

REFERENCES:
patent: 3929098 (1975-12-01), Liebman
patent: 4480911 (1984-11-01), Itaya et al.
patent: 4615606 (1986-10-01), Nishikawa
patent: 4868600 (1989-09-01), Hays et al.
patent: 5063875 (1991-11-01), Folkins et al.

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