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. 21, 2009
Filed:
Jul. 22, 2004
Ken Ohmura, Hachioji, JP;
Hiroshi Yamazaki, Hachioji, JP;
Ken Ohmura, Hachioji, JP;
Hiroshi Yamazaki, Hachioji, JP;
Konica Minolta Business Technologies, Inc., Tokyo, JP;
Abstract
An image forming method, including the steps of: charging each surface of a plurality of amorphous-silicon-based photoreceptors; exposing the each surface of the amorphous-silicon-based photoreceptors to form respective color latent images of yellow, magenta, cyan and black; developing the respective color latent images with corresponding color toners to form respective color visible toner images; and transferring the respective color toner images successively to be piled up on a toner image receiving member, wherein the color toner of each color contains grains having volume average grain size (D4) of 3-7 μm and number average primary grain size of 40-800 nm, and the relationship of 1.04≦B/A≦1.4 (6≦A≦30) is satisfied between an exposure size (A μm) in the main scanning direction in the exposing step and a development size (B μm) corresponding to the exposure size (A μm) in the developing step.