Electrophotography – Machine operation – Accounting
Patent
1998-12-01
2000-06-06
Grainger, Quana
Electrophotography
Machine operation
Accounting
399 12, 399 13, G03G 1501
Patent
active
060729651
ABSTRACT:
In a multicolor image forming apparatus constructed of a printer controller and a printer engine, such as a laser beam printer, and the like, after confirming the reception of a proper ID command from the printer controller, the printer engine enters a printable state. Before the ID of the printer controller is checked, by checking an attachment situation of the printer controller at the time of turning on of a power supply, and the like, the attachment situation of the printer controller is discriminated. When the printer engine is not attached, the ID check is skipped and only an engine test print by an engine test print switch is enabled.
REFERENCES:
patent: 4788575 (1988-11-01), Ito et al.
patent: 5075724 (1991-12-01), Wade et al.
patent: 5854957 (1998-12-01), Morikawa
patent: 5920749 (1999-07-01), Sugaya et al.
patent: 5953552 (1999-09-01), Someya
Canon Kabushiki Kaisha
Grainger Quana
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