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:
Nov. 03, 1998
Filed:
Feb. 27, 1997
Hisao Terajima, Yokohama, JP;
Yasuhide Ueno, Fuchu, JP;
Takeshi Toyama, Hiratsuka, JP;
Toshiyuki Watanabe, Sagamihara, JP;
Takashi Imai, Yokohama, JP;
Naoya Watanabe, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image recording apparatus includes a facsimile (FAX) unit and a printer unit. The printer unit has an ink-jet printing head, and records an image in accordance with image data received by the FAX unit. In this apparatus, when the power supply is turned on, the printer unit performs a hard power-ON initialization process to initialize a watchdog timer, registers, the work area of a RAM, and the like, and also initializes the RAM to erase data left in buffers. Thereafter, the printer unit transfers to a standby state. When a print request or a printer setting request is generated in the standby state, a soft power supply initialization process is executed to perform checking of the RAM, initialization of the work area, and initialization of carriage control and paper feed control, and the like. In the standby state, LEDs and the like of the printer unit are kept OFF. An operation error of the printer unit caused by remaining data can be prevented, and reliability of the apparatus can be improved. In addition, unnecessary power consumption can be prevented.