Copy apparatus having a priority copy interrupt and malfunction

Details Copy apparatus having a priority copy interrupt and malfunction Copy apparatus having a priority copy interrupt and malfunction

1988-10-03

1990-03-06

Braun, Fred L.

Photocopying

Contact printing

Light boxes

355207, 355311, G03G 2100

Patent

active

049070312

ABSTRACT:
An image forming apparatus capable of interrupting a copying operation for a priority copying operation includes a first key for entering a desired number of copies, a second key for causing the start of a copying operation, a third key for interrupting a first copying operation initiated in accordance with operation of the first and second keys in order to enable a second or priority copying operation, a fourth key for stopping the first copying operation and control circuitry responsive to the various key operations. Operation of the third key to interrupt a copying operation causes a memory to store the number of repetitions needed to complete the first copying operation. The memory also stores the number of copies for the second copying operation upon operation of the first key after operation of the third key prior to the start of the first copying operation. Operation of the second key after completion of the second copying operation completes or commences the first copying operation. When the fourth key is operated during the priority copying operation, the first copying operation is resumed. The copying operation in progress when a malfunction occurs is resumed after the malfunction is corrected.

REFERENCES:
patent: 3682544 (1972-08-01), Glaser
patent: 3806242 (1974-04-01), Reehil
patent: 4008957 (1977-02-01), Summers
patent: 4054380 (1977-10-01), Donohue et al.
patent: 4090787 (1978-05-01), Hubbard et al.
patent: 4099860 (1978-07-01), Connin
patent: 4105914 (1978-08-01), Murata et al.
patent: 4128756 (1978-12-01), Nagano et al.

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