Timing pulse generator for an electrophotographic printing machine
AssigneeXerox Corporation
InventorAbraham Cherian
Life of this patent
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Abstract
An apparatus which generates timing pulses in an electrophotographic printing machine. A flexible member having spaced, marks formed photographically thereon is mounted on the shaft of the photoconductive member to rotate in unison therewith. As the flexible member rotates, the spaced marks are detected to generate a timing pulse output in response thereto. The detector prevents the member from deflecting to control the axial motion of the flexible member during the rotation thereof.
Claims16
An apparatus for generating timing pulses in an electrophotographic printing machine, including:
- a flexible member having spaced marks formed photographically thereon;
- means for mounting said member rotatably in the printing machine;
- and
- means for detecting the spaced marks on said member and generating a timing pulse output in response thereto, said detecting means preventing said member from deflecting to control the axial motion of said member during rotation.
An electrophotographic printing machine of the type having a moving photoconductive member, including:
- a plurality of processing stations arranged to reproduce copies of an original document;
- a flexible member having spaced marks formed photographically thereon;
- means for mounting said member on the photoconductive member to move in unison therewith;
- and
- means for detecting the spaced marks on said member and generating a timing pulse output in response thereto to control the energization and de-energization of said plurality of processing stations, said detecting means preventing said member from deflecting to control the axial motion of said member during the movement thereof.
Dependencies are inferred from the claim text.