Electrophotography – Control of electrophotography process – Control of transfer
Patent
1997-12-22
1999-05-11
Grimley, Arthur T.
Electrophotography
Control of electrophotography process
Control of transfer
399 44, 399314, 430126, G03G15/16
Patent
active
059037989
ABSTRACT:
An image recording device for recording an image on a recording sheet including a transfer unit having a transfer roller and photosensitive body. The recording sheet is nipped between the transfer roller and photosensitive body when the image is recorded on the recording sheet. A first resistance value of the transfer unit of when no recording sheet is nipped between the transfer roller and photosensitive body is measured. Then, a second resistance value of the transfer unit of during recording sheet nipping is determined based on the first resistance value. A voltage adjusting mechanism determines a voltage to be applied to the transfer unit based on the second resistance value. A voltage generator generates the determined application voltage and applies it to the transfer roller such that a toner image on the photosensitive body is transferred onto the recording sheet.
REFERENCES:
patent: 5621509 (1997-04-01), Karashima et al.
patent: 5649265 (1997-07-01), Tabuchi
patent: 5682575 (1997-10-01), Komori
patent: 5717980 (1998-02-01), Oka et al.
patent: 5768653 (1998-06-01), Fare
Sasai Takahiro
Yokogawa Tadahiro
Chen Sophia S.
Grimley Arthur T.
Murata Kikai Kabushiki Kaisha
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