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:
Jan. 30, 2018

Filed:

Nov. 18, 2016
Applicant:

Oki Data Corporation, Tokyo, JP;

Inventors:

Shuichi Suzuki, Tokyo, JP;

Toru Kosaka, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/20 (2006.01); G03G 15/00 (2006.01); H02M 1/42 (2007.01); H02M 7/44 (2006.01); H05B 1/02 (2006.01);
U.S. Cl.
CPC ...
G03G 15/2039 (2013.01); G03G 15/80 (2013.01); H02M 1/4208 (2013.01); H02M 7/44 (2013.01); H05B 1/0202 (2013.01); H05B 1/0241 (2013.01);
Abstract

An image formation apparatus includes: one or more image formation units; one or more heaters; a first voltage converter which generates a direct first voltage based on an alternating external input voltage inputted from outside of the first voltage converter; a second voltage converter which generates an alternating second voltage based on the first voltage, the second voltage supplying alternating-current power to the one more heaters; a third voltage converter which generates a third voltage based on the first voltage, the third voltage being used to drive at least the one or more heaters; a controller which performs an operation control of reducing power consumption in at least the one or more heaters when the external input voltage decreases to a range of a first threshold or lower and higher than a second threshold and/or when a load change of the first voltage converter is lower than a third threshold.


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