Heating device and image forming device

Details Heating device and image forming device Heating device and image forming device

2007-04-03

2007-04-03

Pelham, Joseph (Department: 3742)

Electric heating

Heating devices

Combined with diverse-type art device

C399S334000

Reexamination Certificate

active

10567791

ABSTRACT:
Within a fixing roller (231) are disposed a main heater lamp (234a) for heating a central portion of the fixing roller and a sub-heater lamp (235a) for heating opposite end portions of the fixing roller. MRnh, SRnh and ΣRnh satisfy the formula (1) or (2):in-line-formulae description="In-line Formulae" end="lead"?ΣRnh≧30.5·Ln(Ht)+382  formula (1)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?MRnh≦−21.9·Ln(Ht)−198,  formula (2)in-line-formulae description="In-line Formulae" end="tail"?where MRnh is a mean value of heat distribution in a no-heat generating section of the main heater lamp; SRnh is a mean value of heat distribution in the a no-heat generating section of the sub-heater lamp; ΣRnh is the sum total of these mean values; and Ht=vp/(Mh·λ) where vp is a fixing speed (m/s), Mh a heat capacity per unit length of the heating member (J/(° C.·m)) and λ a heat conductivity of a material forming the heating member (W/(m·° C.)).

REFERENCES:
patent: 5671462 (1997-09-01), Toyohara et al.
patent: 5819134 (1998-10-01), Sato et al.
patent: 5961864 (1999-10-01), Nakajima et al.
patent: 6697597 (2004-02-01), Senda
patent: 6810220 (2004-10-01), Hamada et al.
patent: 6-19362 (1994-01-01), None
patent: 7-92852 (1995-04-01), None
patent: 8-220930 (1996-08-01), None
patent: 2001-154521 (2001-06-01), None
patent: 2002-258646 (2002-09-01), None
patent: 2002-268421 (2002-09-01), None
patent: 2002-357977 (2002-12-01), None

Affiliated with

Also associated with

Rating

Heating device and image forming 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 Heating device and image forming device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Heating device and image forming device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3759487