Image printing apparatus and method of controlling thereof

Details Image printing apparatus and method of controlling thereof Image printing apparatus and method of controlling thereof

2006-03-07

2006-03-07

Chen, Sophia S. (Department: 2852)

Electrophotography

Control of electrophotography process

Control of exposure

C399S066000

Reexamination Certificate

active

07010238

ABSTRACT:
An image printing apparatus and method thereof. The apparatus includes a photosensitive medium, and a transfer roller to transfer an image developed on the photosensitive medium with a developer to a fed paper, a printing engine state diagnosing portion to detect an effective resistance between the photosensitive medium and the transfer roller, a controller to determine a transfer voltage to be supplied to the transfer roller to print according to the effective resistance value in a printing engine driving condition determining mode, and determine a driving voltage for a printing mode with respect to a light source of the apparatus based on the determined transfer voltage, and a light source drive unit to drive the light source according to the driving voltage for the printing mode under the control of the controller.

REFERENCES:
patent: 6639617 (2003-10-01), Yokogawa
patent: 6750893 (2004-06-01), Jeong
patent: 2003/0030716 (2003-02-01), Jeong
patent: 2001100469 (2001-04-01), None
patent: 2002116641 (2002-04-01), None
patent: 2003005537 (2003-01-01), None

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