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:
Mar. 26, 2002
Filed:
Jun. 20, 2000
Yoji Serizawa, Gotenba, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
It is an object of the invention to make it possible to extend a degree of freedom on designing and further improve the reliability when an output control is performed according to a status change of a printer engine. When there is the status change of the printer engine, whether an output monitoring timer of a CCRT signal is OFF or not is detected. If NO, whether the counting operation of the timer has been finished or not is discriminated. When the counting operation of the timer is finished, the timer operation is stopped. After the timer operation was stopped, the CCRT signal is set to “true”. When a status request command from an image controller is received, a transmission preparation of a current state of the printer engine is started. After completion of the transmission preparation of the status signal, an SBSY signal is set to “true” and the CCRT signal is set to “false”. After that, the timer is set to a predetermined value and the counting operation is started.