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:
Jun. 25, 2019

Filed:

Jan. 19, 2018
Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventors:

Yusuke Hirota, Ebina, JP;

Hisashi Nakahara, Numazu, JP;

Akihiko Uchiyama, Mishima, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/00 (2006.01); G03G 15/32 (2006.01); G03G 15/06 (2006.01); G03G 21/04 (2006.01); H04N 1/00 (2006.01); B41M 3/14 (2006.01); B41J 29/40 (2006.01); H04N 1/407 (2006.01);
U.S. Cl.
CPC ...
G03G 15/321 (2013.01); G03G 15/06 (2013.01); G03G 15/5025 (2013.01); G03G 15/751 (2013.01); G03G 15/757 (2013.01); G03G 21/043 (2013.01); H04N 1/00877 (2013.01); B41J 29/40 (2013.01); B41M 3/14 (2013.01); G03G 15/5037 (2013.01); G03G 2215/00126 (2013.01); H04N 1/4072 (2013.01);
Abstract

In a first image formation mode, an image is formed with a first development contrast Cand a specific dot pattern is formed with a second development contrast C, which is lower than the first development contrast C; in a second image formation mode, an image is formed with a third development contrast Cand a specific dot pattern is formed with a fourth development contrast C, which is lower than the third development contrast C; and when ΔC(=C/C) denotes a ratio between the second development contrast Cand the first development contrast C, and ΔC(=C/C) denotes a ratio between the fourth development contrast Cand the third development contrast C, ΔC<ΔCis satisfied.


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