Patent · US Active

Image forming apparatus

US9141046B2 · kind B2 · utility

0Cited by

2References

9Claims

0Family size

Assignee

Canon Kabushiki Kaisha · JP

Inventors

Yasuhiro Shimura · Yokohama, JP
Atsushi Kawarago · Soma, JP
Yuta Hojo · Tokyo, JP
Kei Sato · Yokohama, JP

Key dates

Filing date	Jun 17, 2014
Grant date	Sep 22, 2015
Priority date	—
Expiry date	Jun 17, 2034

Classification

Technology area (CPC G)Physics
CPC primaryG03G15/2039
WIPO fieldOptics
WIPO sectorInstruments

Abstract

An apparatus is capable of switching between a mode in which a first resistance heating element and a second resistance heating element are connected in series and a mode in which they are connected in parallel. When a temperature increase rate detected by a temperature detection unit is smaller than a threshold rate although a current detected by a current detection unit is greater than a threshold current, a notification of a failure is issued.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.