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:
Apr. 19, 2011
Filed:
Dec. 11, 2008
Takuya Murata, Tokyo, JP;
Kazuhiko Kobayashi, Tokyo, JP;
Takuya Uehara, Tokyo, JP;
Yuji Matsuda, Tokyo, JP;
Yuichiro Ueda, Kanagawa, JP;
Hiromichi Matsuda, Kanagawa, JP;
Toshiyuki Andoh, Kanagawa, JP;
Joh Ebara, Kanagawa, JP;
Yohei Miura, Tokyo, JP;
Takuya Murata, Tokyo, JP;
Kazuhiko Kobayashi, Tokyo, JP;
Takuya Uehara, Tokyo, JP;
Yuji Matsuda, Tokyo, JP;
Yuichiro Ueda, Kanagawa, JP;
Hiromichi Matsuda, Kanagawa, JP;
Toshiyuki Andoh, Kanagawa, JP;
Joh Ebara, Kanagawa, JP;
Yohei Miura, Tokyo, JP;
Ricoh Company, Limited, Tokyo, JP;
Abstract
A driving control device for use in an image forming apparatus includes a control unit that analyzes any one of a speed variation pattern and a thickness variation pattern of an endless belt member of the image forming apparatus per at least one rotation of the endless belt member while endlessly moving the endless belt member by a driving rotating unit, and starts to execute, based on a result of analysis, a driving-speed-control-pattern updating process to update a driving speed control pattern of the driving rotating unit per at least one rotation of the endless belt member, after a power of an image forming apparatus is turned on and within a preparation period in which a predetermined preparation process is completed so that an image forming operation can be started based on an image formation command from an operator.