Image forming apparatus having error detection with automatic er

Details Image forming apparatus having error detection with automatic er Image forming apparatus having error detection with automatic er

1994-05-10

1996-01-02

Braun, Fred L.

Photocopying

Contact printing

Light boxes

355209, G03G 1500, G03G 2100

Patent

active

054813352

ABSTRACT:
An image forming apparatus includes a device for setting the apparatus in a check mode to check a state of the apparatus and for selectively executing one of a plurality of check operations. In one aspect, each check operation is set using a commonly provided numeral key, and the check mode is unconditionally released using a clear key. In another aspect, one of the check modes includes a test movement of a movable member used in image formation. In still other aspects, sheet transporting operations are controlled based on the location of a sheet jam, or based on the selection of a sheet sorter. The state of each of the image formation devices is checked even if an improper state has already been detected, plural error states are repeatedly displayed in a specific order, and a display unit is commonly used.

REFERENCES:
patent: 4054380 (1977-10-01), Donohue et al.
patent: 4057341 (1977-11-01), Sohm
patent: 4133477 (1979-01-01), Marino et al.
patent: 4186299 (1980-01-01), Batchelor
patent: 4470692 (1984-09-01), Shimizu et al.

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