US 7,397,017 B2Granted

Image heating apparatus

AssigneeCanon Kabushiki Kaisha

InventorsShinichiro Hosoi, Koki Watanabe, Shinichiro Wakahara, Jiro Shirakata, Koji Takematsu

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Abstract

A manufacturing method for an image heating apparatus for heating an image on a recording material by a heat from a heat generating element for producing heat by a magnetic flux generated by magnetic flux generating means, the apparatus including a magnetic flux confining member for confining a magnetic flux directing toward a predetermined region of the heat generating element from the magnetic flux generating means, and a first drive transmission member, provided at one end of the magnetic flux confining member, for transmitting rotational drive to the magnetic flux confining member and a second drive transmission member, provided at the other end of the magnetic flux confining member, for transmitting rotational drive to the magnetic flux confining member, the method comprising an adjusting step of adjusting such that first and second drive transmission members are supported by the magnetic flux confining member with a predetermined rotational position relation, using marks provided on the first and second drive transmission members, respectively.

Claims2

Dependent claims

An image heating apparatus comprising:

magnetic flux generating means;
a heat generating element for generating heat by magnetic flux from said magnetic flux generating means to heat an image on a recording material;
magnetic flux confining member for suppressing the magnetic flux directing from said magnetic flux generating means toward a predetermined region of said heat generating element;
a first gear, engaged with one end of said magnetic flux confining member, for transmitting rotational drive;
a second gear, engaged with the other end of said magnetic flux confining member, for transmitting rotational drive;
a first through hole provided on an extension, in a direction of a rotational axis of said first gear, in a state wherein said first gear is mounted to said apparatus, wherein rotation of said first gear is prevented by engaging, inbetween teeth of said first gear, an engaging member engaged in said first through hole;
a second through hole provided on an extension, in a direction of a rotational axis of said second gear, in a state wherein said second gear is mounted to said apparatus, wherein rotation of said second gear is prevented by engaging, inbetween teeth of said second gear, an engaging member engaged in said second through hole.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 11/773,583Filed 5 Jul 2007 · division
Priority: JP 2004/30868722 Oct 2004
Published: US 2008/0006622 A110 Jan 2008
Granted: 8 Jul 2008
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

H05B 6/145
Tools, e.g. nozzles, rollers, calenders: heated rollers
G03G 15/2053
Using contact heat: structural details of heat elements, e.g. structure of roller or belt, eddy current, induction heating
G03G 15/2039
Using contact heat: with means for controlling the fixing temperature
H05B
Electric heating

Family

Application11/255,026Parent of this division · filed 21 Oct 2005
US 2008/0006622 A1Pre-grant publication · published 10 Jan 2008
US 7,319,210 B2Parent of this division
US 2006/0086725 A1Published application
US 7,397,017 B2This patent

From the US filing history. Foreign family members aren’t listed.