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:
May. 11, 2010
Filed:
Sep. 14, 2007
Yoshinori Inaba, Numazu, JP;
Tatsuya Niimi, Numazu, JP;
Yoshinori Inaba, Numazu, JP;
Tatsuya Niimi, Numazu, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
The present invention provides an image forming apparatus including a photoconductor, a charging unit configured to charge the photoconductor, a writing unit configured to form a latent electrostatic image, a toner image forming unit configured to form a toner image by developing the latent electrostatic image, the toner image forming unit having a plurality of developing devices housing a plurality of color developers for each color, a transfer unit configured to transfer the toner image formed on the photoconductor onto a transfer material, and a fixing unit configured to fix the transferred toner image on the transfer material, wherein the time spent by an arbitrary point on the photoconductor in moving from a position in which to face the writing unit to a position in which to face the developing unit is shorter than 50 ms and longer than the transit time of the photoconductor.