Electrophotography – Control of electrophotography process – Control of transfer
Patent
1997-03-27
1998-10-13
Smith, Matthew S.
Electrophotography
Control of electrophotography process
Control of transfer
399 44, 399 45, 399314, G03G 1516
Patent
active
058226516
ABSTRACT:
A transfer voltage adjusting apparatus senses the thickness of printing papers used as recording medium and the printing environment and outputs transfer voltage according to the sensed thickness and the printing environment, thereby achieving an optimum image density. The transfer voltage adjusting device for an electrophotographic developing system, having a voltage generator for generating and outputting a transfer voltage and a register voltage to a transfer roller and a register roller depending on a voltage generating signal; a first current-voltage converter for detecting a current level inputted to the transfer roller by the level of the transfer voltage outputted from the voltage generator, converting the current level into a voltage level and outputting the converted voltage level; a second current-voltage converter for detecting the current level inputted to the register roller by the level of the register voltage outputted from the voltage generator, converting the detected current level into the voltage level and outputting the converted voltage level; a controller for controlling an overall operation and outputting the voltage generating signal for adjusting the level of the transfer voltage according to the voltage level inputted from the first and second current-voltage converters to the voltage generator.
REFERENCES:
patent: 3837741 (1974-09-01), Spencer
patent: 4401383 (1983-08-01), Suzuki et al.
patent: 5119141 (1992-06-01), Bhagat
patent: 5144368 (1992-09-01), Ohzeki et al.
patent: 5151736 (1992-09-01), Ohzeki et al.
patent: 5321476 (1994-06-01), Gross
patent: 5438399 (1995-08-01), Asai
patent: 5450180 (1995-09-01), Ohzeki et al.
patent: 5455664 (1995-10-01), Ito et al.
patent: 5493371 (1996-02-01), Kutsuwada et al.
patent: 5504565 (1996-04-01), Tomiki et al.
patent: 5633703 (1997-05-01), Takenouchi et al.
patent: 5682575 (1997-10-01), Komori
patent: 5697015 (1997-12-01), Ream et al.
Ko Chang Kyung
Yim Gwang-Pyo
Bushnell Esq. Robert E.
Samsung Electronics Co,. Ltd.
Smith Matthew S.
LandOfFree
Transfer voltage adjusting device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Transfer voltage adjusting device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transfer voltage adjusting device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-326175