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. 11, 2002
Filed:
Nov. 28, 2000
Tsuneo Toda, Urawa, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
A sub-scanning position of a laser beam is detected as an analog signal by a sub-scanning position detection sensor, and is then converted into a digital signal by an A/D converter. The signal is converted into a digital value (a detection result) having the same unit system as that of a count value for generating a vertical synchronization signal. This detection result and a set count value which is a count value for generating a vertical synchronization signal are added together by an adder. This added value is input to a vertical synchronization signal generation counter as a count value for generating an actual vertical synchronization signal. The set count value which is an initial set value is set from a control panel. Accordingly, a color-image forming apparatus which is capable of correcting a registration deviation in a sub-scanning direction is easily provided.