Image forming apparatus and system for administering the same

Details Image forming apparatus and system for administering the same Image forming apparatus and system for administering the same

1995-09-26

1997-01-21

Pendegrass, Joan H.

Electrophotography

Remote monitoring

377 16, 39518401, 399 10, G03G 1500

Patent

active

055963900

ABSTRACT:
In a system for collectively controlling a plurality of image forming apparatuses connected to a control station by a communication line, each apparatus counts the occurrences that any one of the outputs of sensors exceeds a particular second limit value before reaching a first limit value representative of the operation limit of the apparatus, stores the date of counting or similar time information or the cumulative number of copies at the time of counting, and sends the count and the time information or the cumulative number of copies to the control station. The system is capable of estimating troubles to occur in the individual apparatuses by low-cost simple statistical processing.

REFERENCES:
patent: 5023817 (1991-06-01), Au et al.
patent: 5223896 (1993-06-01), Shimizu et al.
patent: 5359391 (1994-10-01), Kuroyanagi et al.

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