Drum heater
AssigneeXerox Corporation
InventorsPatrick B. Justice, Larry E. Hindman, Trevor J. Snyder, Michael P. O'Dierno, Jeffrey R. Kohne
Life of this patent
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Abstract
A drum heater consisting of a plurality of vanes made preferably from mica material and having multiple separate heater wire channels controlled from an electrical cable is provided for heating the interior of a printer drum or fuser. The drum heater has element wires, which can be operated in two different modes, and which are wound around eight mica vanes. The mica vanes are held together on both ends with mica end caps for assembly, electrical isolation and thermal isolation. The mica vanes additionally define protruding tabs for attachment of wire restraining and protecting mica panels.
Claims20
A drum heater comprising:
- a plurality of vanes forming a plurality of separate heater wire channels controlled from an electrical cable wherein the vanes are held together on both ends with mica end caps for assembly, electrical isolation and thermal isolation.
A drum heater comprising:
- a plurality of vanes forming a plurality of separate heater wire channels controlled from an electrical cable wherein the vanes are held together on both ends with mica end caps for assembly, electrical isolation and thermal isolation wherein multiple element wires which can be operated separately and/or in either in series or in parallel, and which are wound around the mica vanes.
A drum heater comprising:
- a plurality of vanes forming a plurality of separate heater wire channels controlled from an electrical cable wherein the vanes are held together on both ends with mica end caps for assembly, electrical isolation and thermal isolation wherein multiple element wires which can be operated separately and/or in either in series or in parallel, and which are wound around the mica vanes further of one or more of the various heater channels to be used out of its nominal design in order to provide a limp-mode in which the printer can be used at reduced performance until a time service can be performed on a broken heater channel.
Dependencies are inferred from the claim text.