Electrophotographic method and apparatus

Details Electrophotographic method and apparatus Electrophotographic method and apparatus

1987-09-21

1989-02-14

Martin, Roland E.

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

To produce color reproduction

430 31, 430 42, 430 54, 430902, 430126, G03G 1301, G03G 13052, G03G 1322

Patent

active

048046035

ABSTRACT:
An electrophotosensitive member is uniformly charged and portions to be toned by one type toner are erased. Those portions are filled in with a charge of different potential, for example, a charge of polarity opposite to that of the original charge. The charged member is imagewise exposed and developed with two toners selectively attractive to the different charge potentials. With this method a multicolor image can be formed iwth a single exposure.

REFERENCES:
patent: 4500616 (1985-02-01), Haneda et al.
patent: 4539281 (1985-09-01), Tanaka et al.
patent: 4562129 (1985-12-01), Tanaka et al.
patent: 4562130 (1985-12-01), Oka

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