Maintenance circuits and methods for copy production machines

Details Maintenance circuits and methods for copy production machines Maintenance circuits and methods for copy production machines

G - Physics

05

B

342/11

G05B 23/00 (2006.01) G03G 15/00 (2006.01) G06F 11/07 (2006.01) G06F 11/32 (2006.01)

Patent

CA 1108732

MAINTENANCE CIRCUITS AND METHODS FOR COPY PRODUCTION MACHINES Abstract of the Disclosure A copy production machine, or other semiautomatic operator-involved machine, logs operations data and error data during normal operation into a nonvolatile store. Logging is categorized for facilitating diagnostics and maintenance of the machine. During a maintenance mode log scanning methods enable efficient retrieval of the logged data via a keyboard entry system plus manual actua- tion of other switches used for other purposes during the normal copy production. Features of the machine can be updated via the same keyboard by entering enable bits into the nonvolatile store. In this way, all code for a pro- grammed controller can be initialized into the machine at production. As features are added or subtracted the fea- ture controls can be activated or deactivated during main- tenance modes.

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