Fixing unit

Details Fixing unit Fixing unit

2006-10-31

2006-10-31

Tran, Hoan (Department: 2852)

Electrophotography

Control of electrophotography process

Control of fixing

C399S070000, C399S328000

Reexamination Certificate

active

07130556

ABSTRACT:
A fixing device of the present invention has first and second thermistors which detect the temperatures at predetermined positions in the longitudinally direction of a heating roller, first and second coils which can increase independently the temperatures at the center and the end of the heating roller, a driving circuit which supply power alternately to the coils, first and second switching circuits which supply a predetermined power to each coil, a control unit, and a temperature detection circuit.

REFERENCES:
patent: 6026273 (2000-02-01), Kinouchi et al.
patent: 6078781 (2000-06-01), Takagi et al.
patent: 6087641 (2000-07-01), Kinouchi et al.
patent: 6097926 (2000-08-01), Takagi et al.
patent: 6137985 (2000-10-01), Kinouchi et al.
patent: 6154629 (2000-11-01), Kinouchi et al.
patent: 6337969 (2002-01-01), Takagi et al.
patent: 6415128 (2002-07-01), Takagi et al.
patent: 6438335 (2002-08-01), Kinouchi et al.
patent: 6577839 (2003-06-01), Samei
patent: 6630651 (2003-10-01), Ohishi et al.
patent: 6643476 (2003-11-01), Kinouchi et al.
patent: 6643491 (2003-11-01), Kinouchi et al.
patent: 6674929 (2004-01-01), Feng et al.
patent: 6724999 (2004-04-01), Kikuchi et al.
patent: 6725000 (2004-04-01), Takagi et al.
patent: 6763206 (2004-07-01), Kinouchi et al.
patent: 6861630 (2005-03-01), Kinouchi et al.
patent: 6868249 (2005-03-01), Kinouchi et al.
patent: 6868250 (2005-03-01), Takagi et al.
patent: 6871041 (2005-03-01), Takagi et al.
patent: 2004/0141038 (2004-07-01), Takagi et al.
patent: 2004/0175211 (2004-09-01), Sone
patent: 2004/0175212 (2004-09-01), Tsueda et al.
patent: 2004/0208665 (2004-10-01), Takematsu
patent: 2004/0265021 (2004-12-01), Kinouchi et al.
patent: 8-076620 (1996-03-01), None
patent: 9-258586 (1997-10-01), None
patent: 2000-206813 (2000-07-01), None
patent: 2001-312178 (2001-11-01), None

Affiliated with

Also associated with

Rating

Fixing unit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fixing unit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fixing unit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3717984