Image forming system including an image forming apparatus having

Details Image forming system including an image forming apparatus having Image forming system including an image forming apparatus having

1997-08-06

2000-07-18

Au, Amelia

Facsimile and static presentation processing

Facsimile

Auxiliary signal

H04N 100

Patent

active

060915153

ABSTRACT:
An image forming system in which an energy saving mode can be canceled by an external device when the external device requests a printing operation to an image forming apparatus which is set in the energy saving mode. The external device outputs image data to be printed. Power consumption of the image forming apparatus is reduced when the image forming apparatus is waiting to receive the image data. A communication line connects the external device to the image forming apparatus. An energy saving control unit, provided in the image forming apparatus, recognizes a print request sent from the external device via the communication line when the image forming apparatus is set in the energy saving mode so that the energy saving mode is canceled when the print request is recognized. The print request can be either a strobe signal or a wakeup command. A ready command may be sent to the external device when the image forming apparatus is set in a stable state.

REFERENCES:
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patent: 5247623 (1993-09-01), Sun
patent: 5438436 (1995-08-01), Harris
patent: 5525346 (1996-06-01), Kim et al.
patent: 5758049 (1998-05-01), Lee
patent: 5803623 (1998-09-01), Iwasaki
patent: 5832190 (1998-11-01), Terajima et al.

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