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:
Aug. 13, 2013
Filed:
Jun. 30, 2011
Yasuhiro Abe, Kanagawa, JP;
Yasuhiro Abe, Kanagawa, JP;
Ricoh Company, Limited, Tokyo, JP;
Abstract
A length L of the test pattern string is determined so as to satisfy a condition L≦{P−(Q+Q)}×V, where a time Q is a total time of a time Qfor which the test pattern string is transferred from an exposure position of the test pattern string to a sensor and a time Qfrom when the test pattern is detected by the sensor until a color misregistration correction value calculated on the basis of a result of detecting is reflected in image formation; a time P is a time from a timing of starting to write the test pattern string to a timing of starting to write an image in which the correction value should be reflected; and a driving speed of a second image carrier is V.