Electrophotographic fuser roll having distributed thermal mass

Details Electrophotographic fuser roll having distributed thermal mass Electrophotographic fuser roll having distributed thermal mass

1999-09-10

2000-09-12

Moses, Richard

Electrophotography

Image formation

Fixing

219216, 432 60, G03G 1520

Patent

active

061189693

ABSTRACT:
A fuser hot roll for use in an electrophotographic process is disclosed. This roll is constructed such that the center portion of the roll's length has a greater thermal mass per unit length than each of the end portions of the roll's length. This can be accomplished either by constructing the center portion from a material which has a higher thermal capacity than the materials used for constructing the end portions, or constructing the center portion such that it is thicker than the end portions of the roll. The rolls of the present invention provide a simple way for regulating the fuser temperature such that it is uniform across the length of the hot roll, is uniform between the transitory (heat up) state and the steady state, and minimizes hot roll temperature overshoot during the transitory phase. The image fixing apparatus which incorporates this hot roll is also disclosed.

REFERENCES:
patent: 3726338 (1973-04-01), Sorenson
patent: 4585325 (1986-04-01), Euler
patent: 4614565 (1986-09-01), Riihinen
patent: 4639990 (1987-02-01), Schiel et al.
patent: 4683628 (1987-08-01), Schonemann
patent: 4937600 (1990-06-01), Hirabayashi
patent: 5304784 (1994-04-01), Tagashira et al.
patent: 5331384 (1994-07-01), Otsuka
patent: 5481346 (1996-01-01), Ohzeki et al.
patent: 5724639 (1998-03-01), Tamura et al.
patent: 5742865 (1998-04-01), Yajima et al.

Affiliated with

Also associated with

Rating

Electrophotographic fuser roll having distributed thermal mass does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electrophotographic fuser roll having distributed thermal mass, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrophotographic fuser roll having distributed thermal mass will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-104212