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. 23, 2004
Filed:
Aug. 16, 2002
Yoshiyuki Tanimoto, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An image forming apparatus of the present invention includes a main controller and an engine controller. When an error occurs in an image forming engine, the engine controller sends to the main controller status information representative of original conditions set up before the error and error information representative of the error and causes a second relay to interrupt the application of an AC voltage to a heater controller. The main controller stores the received status information in its memory and turns off a first relay to thereby interrupt the application of the AC voltage to a second power supply. After recovery from the error, the main controller again turns on the first relay and thereby causes the engine controller to restore the original conditions represented by the status information.