Photocopying – Projection printing and copying cameras – Illumination systems or details
Patent
1987-12-30
1989-01-31
Braun, Fred L.
Photocopying
Projection printing and copying cameras
Illumination systems or details
346160, 355 1, 355 14E, 358300, G03B 2772
Patent
active
048019780
ABSTRACT:
In an electronic printer which utilizes an image write bar, a control circuit is provided to compensate for the effects of vibration in a rotating photoconductive member, typically a photoreceptor drum. In one embodiment an encoder is positioned so as to detect spatial displacements of indicia affixed to the photoconductor surface, Correction signals are generated and sent to control circuits which adjust the on/off timing of the write bar operation and/or the intensity of the image bar output. This adjustment results in compensation for the effects of photoconductor vibration.
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Durbin John A.
Lama William L.
Loce Robert P.
Braun Fred L.
Xerox Corporation
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