Electrostatic imaging device capable of producing high-quality i

Details Electrostatic imaging device capable of producing high-quality i Electrostatic imaging device capable of producing high-quality i

1998-11-24

2000-08-08

Pendegrass, Joan

Electrophotography

Control of electrophotography process

Control of transfer

399 44, G03G 1500, G03G 1516

Patent

active

061013447

ABSTRACT:
An electrostatic imaging device such as a printer or facsimile machine has a power source for a transcription roller for transcribing a toner image from a photoreceptor drum to a recording sheet. The power source applies to the transcription roller during an initialization period a power source having a first characteristic between a transcription voltage (V) and a transcription current (I) defined by I/a+V/b=1. The transcription voltage and the transcription current are measured, based on which the power source selects one of a plurality of characteristics of a power source to be applied to the transcription roller during an operation period.

REFERENCES:
patent: 5646717 (1997-07-01), Hiroshima et al.
patent: 5887220 (1999-03-01), Nagaoka
patent: 5893661 (1999-04-01), Sakai et al.
patent: 5953556 (1999-09-01), Yamanaka

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