Photocopying – Projection printing and copying cameras – Combined with or convertible to a contact printer
Patent
1983-08-26
1985-11-19
Braun, Fred L.
Photocopying
Projection printing and copying cameras
Combined with or convertible to a contact printer
355 14C, G03G 2100
Patent
active
045538301
ABSTRACT:
To facilitate servicing of xerographic type reproduction machines or printers, diagnostic routines are used (1) to operate the machine in a predetermined copy run while recording the clock count on a global counter on the arrival of a copy sheet at a first selected jam station in the paper path and the count on arrival of the same copy sheet at the next jam station, and then display the clock count difference on the machine display console for comparison by the Tech Rep with a master clock count; (2) to operate the machine in a present copy run while fetching the current timing parameter of a machine subassembly from memory, displaying the timing parameter to the Tech Rep on the machine display console, and permitting the Tech Rep to use the machine control panel keyboard to reset the timing parameter while watching the effect of the timing change on the copies as they are produced; and (3) to delay the arrival of the copy sheet at the machine image transfer station so that the normally unprinted interdocument area wherein process control images are formed is printed out to enable the process control images to be visually examined.
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patent: 3673936 (1972-07-01), Stone, Jr. et al.
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patent: 4035072 (1977-07-01), Deetz et al.
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patent: 4247193 (1981-01-01), Kaneko et al.
Braun Fred L.
McMullen Frederick E.
Xerox Corporation
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