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:
Dec. 12, 2006
Filed:
Nov. 09, 2004
Hiroshi Saito, Chiba, JP;
Hiroshi Saito, Chiba, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image forming apparatus includes a plurality of developing portions capable of developing electrostatic latent images formed on an image bearing member, and a control portion for executing preparation operations for developing operations with respect to each of the plurality of developing portions. The image forming apparatus has a first mode for conducting image formation by use of the plurality of developing portions, and a second mode for conducting the image formation by use of only a predetermined developing portion in the plurality of developing portions. The preparation operations for the predetermined developing portion are executed earlier than the preparation operations of the developing portions other than the predetermined developing portion in the plurality of developing portions, and the image formation in the second mode can be done earlier than the first mode.