CONTROL SYSTEM FOR COPYING MACHINE

• Main Author: KONDOU MINORU
• Format: Patent
• Language: English
• Published: 09.12.1985
• Subjects: CINEMATOGRAPHY; CONTROL OR REGULATING SYSTEMS IN GENERAL; CONTROLLING; ELECTROGRAPHY; ELECTROPHOTOGRAPHY; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; HOLOGRAPHY; MAGNETOGRAPHY; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS; PHOTOGRAPHY; PHYSICS; REGULATING

PURPOSE:To know easily the cause for the past failure of the copying machine by storing the causes of the failures for a prescribed number of times arising from the past till present into a non-volatile memory and reading out and displaying the content of the storage as needed. CONSTITUTION:A failure detecting part 2 detects the failure in the copying operation of a main unit and transmits the information indicating the cause of the failure to a central processing unit 1 which transmits the display signal corresponding to the information to a console display part 7. The part 7 displays the cause of the operation failure in accordance with the display signal. The unit 1 reads out the prescribed sub-routine from a storage device 3 at the same instants and executes the updating of the history of the cause for the failure stored in the non-volatile memory part 5. The operator turns on the prescribed switch of a service engineer mode change-over part 6 when the operator is desirous to know the past history of the case for the failure, then the signal indicating the on is transmitted to the unit 1 which reads the history of the cause for the failure from the part 5 according to the signal and transmits the display signal corresponding to the history to the part 7. The display part displays the history of the cause for the failure in accordance with the display signal.