Image forming apparatus

Details Image forming apparatus Image forming apparatus

1987-03-17

1989-03-28

Braun, Fred L.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

355 14R, G03G 1500, G03G 2100

Patent

active

048168688

ABSTRACT:
An image forming apparatus in which copying operations are controlled according to a program sequence. The apparatus has an input unit for entering copying instructions and sequence signals, a control unit for controlling active loads in response to signals from the input unit, and logic circuits connected to the control unit for controlling the active loads. The input unit can be used to input a specific instruction signal to set a predetermined data value in a data memory of the control unit, to instruct that a portion of the control program be omitted to permit the apparatus to operate without actually producing an image. Alternatively, or in addition to such feature, the control unit may have a sequence control program which omits specific malfunction detection functions, that program being used to permit performance of a test operation of the apparatus without the need for actually consuming recording sheets or other materials in the test.

REFERENCES:
patent: 3737734 (1973-06-01), Nakamura et al.
patent: 4054380 (1977-10-01), Donohue et al.
patent: 4133477 (1979-01-01), Marino et al.
patent: 4186299 (1980-01-01), Batchelor
patent: 4314754 (1982-02-01), Shimizu et al.

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