Method of revising medium resistance and image forming...

Details Method of revising medium resistance and image forming... Method of revising medium resistance and image forming...

2007-05-08

2011-10-11

Lee, Susan (Department: 2884)

Electrophotography

Control of electrophotography process

Responsive to copy media characteristic

C399S066000, C324S693000

Reexamination Certificate

active

08036549

ABSTRACT:
A method of revising a medium resistance to determine a transfer voltage and an image forming device to perform the same. The method includes supplying a medium recognition voltage to recognize a print medium, and reading medium resistances according to a predetermined reading cycle, calculating an estimated medium resistance based on the read medium resistances, by referring to a pattern of medium resistance in an interval between a time at which the medium recognizing voltage is supplied and a predetermined stabilizing time, and determining a medium resistance to be applied when a transfer voltage is supplied, by comparing the calculated estimated medium resistance with the read medium resistances obtained after the predetermined stabilizing time.

REFERENCES:
patent: 5914611 (1999-06-01), Cheng
patent: 5953556 (1999-09-01), Yamanaka
patent: 6111594 (2000-08-01), Jeong
patent: 2006/0222391 (2006-10-01), Choi

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