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.

Date of Patent:
Dec. 13, 2016

Filed:

May. 06, 2015
Applicant:

Ricoh Company, Ltd., Tokyo, JP;

Inventors:

Hiroyuki Suhara, Kanagawa, JP;

Masato Iio, Kanagawa, JP;

Hiroto Tachibana, Kanagawa, JP;

Assignee:

RICOH COMPANY, LTD., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/385 (2006.01); G03G 15/043 (2006.01); H04N 1/00 (2006.01);
U.S. Cl.
CPC ...
B41J 2/385 (2013.01); G03G 15/043 (2013.01); H04N 1/00 (2013.01); G03G 2215/0431 (2013.01); G03G 2215/0482 (2013.01);
Abstract

An image forming method forms an electrostatic latent image corresponding to an image pattern including an image portion and a non-image portion by exposing a surface of an image bearer with light according to the image pattern. The image portion includes a plurality of pixels. Among the pixels constituting the image portion, at least a group of pixels existing at a boundary with respect to the non-image portion is set as a non-exposure pixel group. Among the pixels constituting the image portion, at least a group of pixels existing at a boundary with respect to the non-exposure pixel group is set as a high power exposure pixel group where exposure is performed with light of a higher light power value than a predetermined light power value required for exposing the image portion.


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