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:
Apr. 14, 2015

Filed:

May. 31, 2013
Applicant:

Konica Minolta, Inc., Tokyo, JP;

Inventors:

Yusuke Mamiya, Nagoya, JP;

Soh Hirota, Toyokawa, JP;

Hironori Akashi, Okazaki, JP;

Yoshinori Tsutsumi, Toyokawa, JP;

Kanako Kibihara, Toyokawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/08 (2006.01); G03G 15/09 (2006.01); G03G 15/00 (2006.01);
U.S. Cl.
CPC ...
G03G 15/0824 (2013.01); G03G 15/09 (2013.01); G03G 15/0849 (2013.01); G03G 15/0893 (2013.01); G03G 15/556 (2013.01);
Abstract

For each of N imaginary regions divided at predetermined intervals in the direction of the rotation shaft of a developer roller (), the amount of toner consumed when an image is formed is previously calculated. Then, the same amount of toner as a toner consumption amount calculated for each imaginary region is supplied to a development device () earlier by a time in which the toner supplied from a toner hopper () is transported to each imaginary region than at the time of the development. Thus, it is possible to maintain a toner concentration within the development device within a predetermined range without the toner being dispersed and an image formation speed being reduced even if an image having a high print rate is formed.


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