The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 06, 2000
Filed:
Dec. 01, 1998
Applicant:
Inventor:
Fumihiro Ueno, Mishima, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
399 80 ; 399 12 ; 399 13 ;
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.