Electrophotography – Image formation – Fixing
Reexamination Certificate
2007-07-17
2007-07-17
Gray, David M. (Department: 2852)
Electrophotography
Image formation
Fixing
C399S336000
Reexamination Certificate
active
10312237
ABSTRACT:
An apparatus and method for performing a second toner image fixing on a toner image on a carrier material includes a second fixing unit in the carrier material transport path. The second fixing unit is in a burn-in unit that is spaced by a cooling distance from the printer or copier and its toner fixing unit. The first fixing unit of the printer or copier fixes the toner image in a first fixing condition and the second fixing unit fixes the toner image in a second fixing condition. For printers or copiers that perform two sided printing and have front and back side fixing units, the burn-in unit also has front and back side fixing units for fixing the toner image in the second fixing condition. A controller may be provided to reduce the heat energy applied to the first fixing unit in the printer or copier to partially fix the toner image so that the second fixing unit further fixes the toner image.
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Gleitz Ryan
Gray David M.
Oce Printing Systems GmbH
Schiff & Hardin LLP
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