Testing device for electrophotographic imaging apparatus

Details Testing device for electrophotographic imaging apparatus Testing device for electrophotographic imaging apparatus

1992-06-19

1993-12-14

Pendegrass, Joan H.

Photocopying

Contact printing

Light boxes

355209, 358406, 395113, G03G 1500

Patent

active

052707741

ABSTRACT:
An electrophotographic imaging apparatus has an engine driver board and a printer controller that are connectable to the engine driver. A testing device is connected to the engine driver board in order to test and/or monitor the operational function of the imaging apparatus by communicating with the engine driver board. In the imaging apparatus, the printer controller is disconnected from the engine driver when the testing device is connected to the engine driver board when a testing operation is performed. On the other hand, the connection between the engine driver board and the printer controller is maintained when the testing device is connected to the engine driver board merely to display the operational condition of the imaging apparatus without performing the testing operation.

REFERENCES:
patent: 4483002 (1984-11-01), Groom, Jr. et al.
patent: 4742483 (1988-05-01), Morrell
patent: 4774524 (1988-09-01), Warbus et al.
patent: 4989163 (1991-01-01), Kawamata et al.
patent: 5027135 (1991-06-01), Negishi et al.

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