Electrophotography – Control of electrophotography process – Responsive to copy media characteristic
Reexamination Certificate
2008-07-25
2010-11-16
Chen, Sophia S (Department: 2852)
Electrophotography
Control of electrophotography process
Responsive to copy media characteristic
C399S067000, C399S329000
Reexamination Certificate
active
07835654
ABSTRACT:
A belt-nip system fixing apparatus reduces the frequency of replacing a pressure belt or a sliding sheet. In accordance with a sheet measurement in a roller axis direction, the fixing apparatus switches a pressure distribution in the roller axis direction between a low-pressure load distribution in which pressure is greatest at a center pressure switching projection of a hard pad, and pressure gradually lessens towards pressure switching projections near the ends of the hard pad, and the pressure in a range of 216 [mm] in a center in the roller axis direction is greater than or equal to a necessary pressure for fixing (a predetermined value Nm) while the pressure in other projections near the ends is below the predetermined value Nm, and a high-pressure load distribution in which the pressure throughout the total area in the roller axis direction equals or exceeds the predetermined value Nm.
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Notification of Reasons for Rejection issued in corresponding Japanese Application No. JP 2007-214635 dated Aug. 11, 2009, and a verified English Translation thereof.
Buchanan & Ingersoll & Rooney PC
Chen Sophia S
Konica Minolta Business Technologies Inc.
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