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. 23, 2009
Filed:
Apr. 02, 2008
Tetsuo Yamanaka, Tokyo, JP;
Kazuhiko Kobayashi, Tokyo, JP;
Hiroyasu Shijo, Tokyo, JP;
Yuzo Katsumata, Shizuoka, JP;
Mineyo Takahashi, Kanagawa, JP;
Tetsuo Yamanaka, Tokyo, JP;
Kazuhiko Kobayashi, Tokyo, JP;
Hiroyasu Shijo, Tokyo, JP;
Yuzo Katsumata, Shizuoka, JP;
Mineyo Takahashi, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An image forming apparatus of the present invention includes image carriers arranged side by side in a preselected direction, developing means each for forming a toner image on one of the image carriers, a drive mechanism for driving in the preselected direction a member to which toner images are to be sequentially transferred from the image carriers one above the other, and image transferring devices each for transferring a toner image from one of the image carriers to the above member. At least during an image forming process, a slip condition is substantially the same throughout all image transfer positions where the image carriers face the member.