# US 2008/0187372 A1 · Heating device and image formation apparatus

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- Number: US 2008/0187372 A1
- Document ID: US20080187372A1
- Status: Published application
- Kind: A1
- Application number: 11/999,444
- Filed: 2007-12-04
- Published: 2008-08-07
- Earliest claimed: 2006-12-08
- Assignees: Canon Finetech Inc.
- Inventors: Wataru Kato
- Web page: https://patentgrep.com/patent/US20080187372A1

## CPC

- G03G 15/6591: {characterised by the recording material, e.g. plastic material, OHP, ceramics, tiles, textiles (details transferring the toner pattern onto particular materials G03G15/1625)}
- G03G 15/2025: {with special means for lubricating and/or cleaning the fixing unit, e.g. applying offset preventing fluid}
- G03G 2215/00493: Plastic
- G03G 2215/2093: Release agent handling devices
- G03G: ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY

## Abstract

On a sliding surface of a heating support body positioned in a downstream side in a film body moving direction wherein the heating temperature is comparatively high and the fluidity of a lubricant agent is good, fluid guiding grooves which uniformly disperse the lubricant agent are provided, thereby well dispersing the lubricant agent over the entire region from a center region to both-end regions of the heating support body and the film body and maintaining good slidability of the film body over a long period of time.

## Claims

### Claim 1

A heating device comprising a structure which heats a heating target material pressure-contacted, via a film body, with a sliding surface of a heating support member and a heating surface of a heating body, which is disposed to be exposed in part of the sliding surface of the heating support member, while moving the heating target material together with the film body and
having an arbitrary lubricant agent interposed between the sliding surface of the heating support member and the heating surface of the heating body and the film body; wherein
a fluid guiding groove approximately uniformly guiding the lubricant agent is provided on the sliding surface of the heating support member; and
the fluid guiding groove is provided in a downstream side of a pressure-bonding part of the film body and the heating target material with respect to a moving direction of the film body.

### Claim 2 (depends on 1)

The heating device according to claim 1, wherein the fluid guiding groove is provided in a downstream side of the heating body with respect to the moving direction of the film body.

### Claim 3 (depends on 1)

The heating device according to claim 1, wherein a plurality of the fluid guiding grooves are formed in a direction orthogonal to the moving direction of the film body, and
each of the fluid guiding grooves is provided so as to be inclined and extended with respect to the moving direction of the film body.

### Claim 4 (depends on 3)

The heating device according to claim 3, wherein the inclination angles of the plurality of fluid guiding grooves are set to be mutually different.

### Claim 5 (depends on 3)

The heating device according to claim 3, wherein the inclination angles of the plurality of fluid guiding grooves are successively varied in the direction orthogonal to the moving direction of the film body.

### Claim 6 (depends on 3)

The heating device according to claim 3, wherein disposition intervals of the plurality of fluid guiding grooves are successively varied in the direction orthogonal to the moving direction of the film body.

### Claim 7 (depends on 3)

The heating device according to claim 3, wherein the inclination angles and disposition intervals of the plurality of fluid guiding grooves are set to be mutually different in a center-side region and outer-side region in the direction orthogonal to the moving direction of the film body.

### Claim 8 (depends on 1)

The heating device according to claim 1, wherein a bottom surface portion of the fluid guiding groove is formed to be a curved surface.

### Claim 9 (depends on 1, 2, 3, 4, 5, 6, 7, 8)

An image formation apparatus having the heating device according to any one of claims 1 to 8 as a fixing device.