Method of controlling a transfer voltage for an image...

Details Method of controlling a transfer voltage for an image... Method of controlling a transfer voltage for an image...

2006-10-10

2006-10-10

Ngo, Hoang (Department: 2852)

Electrophotography

Control of electrophotography process

Having temperature or humidity detection

C399S066000

Reexamination Certificate

active

07120367

ABSTRACT:
A method of controlling a transfer voltage of an image forming apparatus includes sensing an external temperature of the image forming apparatus, sensing an internal temperature of the image forming apparatus, determining a transfer voltage to be applied to a transfer roller according to the sensed external and internal temperatures, and applying the determined transfer voltage to the transfer roller. The method enables the image forming apparatus to improve a printing quality.

REFERENCES:
patent: 6192203 (2001-02-01), Nishio et al.
patent: 6389241 (2002-05-01), Cernusak et al.
patent: 6829444 (2004-12-01), Ashikawa
patent: 08-006430 (1996-01-01), None
patent: 11-038861 (1999-02-01), None
patent: 2001-318575 (2001-11-01), None
patent: 1996-8887 (1996-03-01), None
Korean Official Action issued on Aug. 23, 2005, for Korean Patent Application No.: 2003-76575 (listing 1 reference).

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