Xerox Corporation

John Kennedy Mangan

Michael John Wilsher

Simon Neil Jowett

Jeremy Brook Lewis

Martin Richard Walsh

Simon John Gray

Andrew Stephen Noren

Peter D Fraser

David R Ascroft

An apparatus has an optical scanner generating image signals, and a processor electrically connected to the optical scanner. The processor converts the electrical signals into image data. Also, a printing engine is electrically connected to the processor, and a light guide is positioned between the printing engine and the optical scanner. The optical scanner generates operating condition signals when optically scanning the light guide. The optical scanner transmits the operating condition signals to the processor, and the processor adjusts operations of the printing engine based on the operating condition signals.

Multi-function printing device having light guides between printing engine and scanner for measurement of print engine or other parameters

Various methods and devices maintain a registration nip and a transfer nip at the same sheet feeding speed when the leading edge of a sheet is between them. These methods and devices create a buckle in the sheet by increasing the sheet feeding speed of the registration nip while maintaining the transfer nip at the original sheet feeding speed during a first portion of when the sheet is simultaneously within the registration nip and the transfer nip. Such methods and devices then decrease the sheet feeding speed of the registration nip after creating the amount of buckle in the sheet and maintain the registration nip and the transfer nip at the same sheet feeding speed to maintain that specific amount of buckle in the sheet during the remaining portion of when the sheet is simultaneously within the registration nip and the transfer nip.

Variably changing nip feeding speeds to maintain optimal sheet buckle

Growing community of inventors

St. Albans, United Kingdom

John Kennedy Mangan