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:
Sep. 08, 2009
Filed:
Feb. 16, 2006
Toshiki Takiguchi, Yamatokoriyama, JP;
Tatsuya Inoue, Nara, JP;
Kouji Wakamoto, Nara, JP;
Tsutomu Yoshimoto, Yamatotakada, JP;
Syoichiro Yoshiura, Nara, JP;
Toshiki Takiguchi, Yamatokoriyama, JP;
Tatsuya Inoue, Nara, JP;
Kouji Wakamoto, Nara, JP;
Tsutomu Yoshimoto, Yamatotakada, JP;
Syoichiro Yoshiura, Nara, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
An image forming apparatus carries out an image processing with respect to a sheet size and image information based on a print request to obtain a write image on a photoreceptor. On the basis of a printing ratio of the write image, the apparatus predicts occurrence of an image elongation. If the apparatus predicts that the image elongation occurs, the apparatus calculates a bending amount of a bended portion based on the difference between peripheral velocities of a photoreceptor and the idle roller, and the apparatus variably controls the peripheral velocity of an idle roller so that the bending amount is adjusted so as not to cause a slip phenomenon. It is possible to avoid the occurrence of a phenomenon of slipping of a sheet with respect to the photoreceptor without lowering image quality, and to surely secure a blank space formed at a rear edge portion of the sheet.