Richard T Howe

US Patent:

8116640, Feb 14, 2012

Filed:

Jun 24, 2009

Appl. No.:

12/490842

Inventors:

Michael F. Zona - Holley NY, US
Richard L. Howe - Webster NY, US

Assignee:

Xerox Corporation - Norwalk CT

International Classification:

G03G 15/00

US Classification:

399 26

Abstract:

An apparatus () and method () that senses photoreceptor failure in a xerographic printing apparatus is disclosed. The xerographic printing apparatus can include a rotatable photoreceptor () having a photoreceptor surface (), a cleaning device () for removing marking material from the photoreceptor, and a printing apparatus controller () that controls operations of the xerographic printing apparatus. The method can include charging () the photoreceptor surface to a fixed voltage. The method can include discharging () at least a portion of the charged photoreceptor surface to an exposed voltage. The method can include developing () the discharged portion of the photoreceptor surface by providing a cleaning field between the charged photoreceptor surface fixed voltage and a developing bias voltage. The method can include reducing () the cleaning field. The method can include generating () a developed image on the photoreceptor using the reduced cleaning field.

US Patent:

20030121607, Jul 3, 2003

Filed:

Apr 14, 2000

Appl. No.:

09/550030

Inventors:

Peter Davis - Santa Crux CA, US
Richard Howe - Brockport NY, US
David Lyndaker - Middleport NY, US
Scott Proctor - Brockport NY, US

International Classification:

B32B001/00

US Classification:

156/344000, 156/584000, 156/350000

Abstract:

The present invention is a method and apparatus conveying a roll of liner stock bearing removably adhered components such as labels. The liner is pulled through the feeder by a capstan drive having opposed fluted nip rollers driven by a stepper motor. Advance of the stepper motor is controlled by a programmable electronic controller. The linered labels are led through a tensioner and around an acute-angle peeler edge which separates the labels from the liner. The peeling action advances a label onto a platform comprising a bed of rollers having an inherently low-adherence surface. Preferably the rollers are undercut to form circumferential ridges and reduce the surface area in contact with the label adhesive and to minimize adherence thereto. When peeling of a label is completed, the label has been advanced onto the roller bed to precisely the proper location for acquisition by a pick-and-place machine. The presence of a label on the platform is confirmed by a sensor that signals the controller to stop further liner advance. The signal also serves to reset the feeder for advance of the next label after the first label is picked from the roller bed.