Image forming apparatus

Details Image forming apparatus Image forming apparatus

1995-12-11

1998-09-22

Coles, Edward L.

395114, 395112, G06F 1500

Patent

active

058127453

ABSTRACT:
An image forming device using an engine for performing a print operation, an engine controller which determines the state of the engine and generates an engine state signal, and a video controller which receives the engine state signal and determines whether data transmitted from a computer is to be received or not based on whether the engine state signal is indicative of a normal state, an abnormal state which can be recovered from, and an abnormal state which can not be recovered from. Data to be printed is received from the computer when the engine state signal is indicative of a normal state and an abnormal state which can be recovered from; data to be printed is not received from the computer when the engine state signal is indicative of an abnormal state which can not be recovered from. Received data is changed into bit map image, and during a normal state or when the abnormal state of the engine is completely recovered from during check of the engine state, the bit map image is output to the engine for printing.

REFERENCES:
patent: 4970599 (1990-11-01), Nobuta
patent: 4975783 (1990-12-01), Takooka
patent: 5018081 (1991-05-01), Yamaguchi et al.
patent: 5170397 (1992-12-01), Hurtz et al.
patent: 5210823 (1993-05-01), Moroi
patent: 5413419 (1995-05-01), Oami et al.
patent: 5469533 (1995-11-01), Dennis

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