System for controlling axial temperature uniformity in a reproduction apparatus fuser
OwnerDavid F. Cahillinventor
Life of this patent
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Abstract
A system for controlling axial temperature uniformity in a reproduction apparatus fuser device having at least one heated fuser member to permanently fix a marking particle image to a receiver member which may be of any of a variety of widths. The axial temperature uniformity control system includes a fuser member heater having at least one elongated heater lamp capable of exhibiting differing effective heating lengths. A logic and control unit is then provided to control the operation of said heater lamp to provide respective different effective heating lengths for different discrete modes of operation.
Claims13
A system for controlling axial temperature uniformity in a reproduction apparatus fuser device having at least one heated fuser member to permanently fix a marking particle image to a receiver member which may be of any of a variety of widths, said axial temperature uniformity control system comprising:
- a fuser member heater having at least one elongated heater lamp capable of exhibiting differing effective heating lengths;
- and
- a logic and control unit to control the operation of said heater lamp to provide respective different effective heating lengths for different discrete modes of operation dependent, at least in part, upon receiver member widths, said logic and control unit including an indicator to provide a signal for said logic and control unit to indicate which mode of operation is required for the fuser device.
A system for controlling axial temperature uniformity in a reproduction apparatus fuser device having at least one elongated heated fuser roller to permanently fix a marking particle image to a receiver member which may be of any of a variety of widths, said axial temperature uniformity control system comprising:
- a fuser roller heater having at least one elongated heater roller engaging the external surface of said fuser roller, said heater roller having a lamp internal thereto, said lamp capable of exhibiting differing effective heating lengths;
- and
- a logic and control unit to control the operation of said heater lamp to provide respective different effective heating lengths for different discrete modes of operation dependent, at least in part, upon receiver member widths, said logic and control unit including an indicator is provided to send a signal to said logic and control unit to indicate which mode of operation is required for the fuser device.
Dependencies are inferred from the claim text.