IP Library › Granted Patent US 8,032,068
Granted Patent B2
US 8,032,068 · App. 12/370,954 · Granted Oct 4, 2011

Fixing device and image forming apparatus

Assignee: Konica Minolta Business Technologies, Inc.
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 8,032,068
App. No.
12/370,954
Granted
Oct 4, 2011
Kind
B2
Abstract

A fixing device includes: a heating section; and a press section which presses the heating section and thereby forms a fixing nip section, wherein at least one of the heating section and the press section comprises, an endless fixing belt; a press member which presses the fixing belt to the fixing nip; and a sliding sheet covering the press member, wherein the sliding sheet is wider than the fixing belt; projections are provided at a first area which is inside of an end part of the press member of a surface of the sliding sheet in the width direction; and projections lower than the projections provided at the first area are provided at a second area which is near the end of the fixing belt of the surface of the sliding sheet, or projections are not provided at all at the second area.

Claims (14)

1. A fixing device comprising:

a heating section; and

a press section which presses the heating section and thereby forms a fixing nip section,

wherein at least one of the heating section and the press section comprises,

an endless fixing belt;

a press member which presses the fixing belt from an inner peripheral surface of the fixing belt to the fixing nip; and

a sliding sheet covering the press member,

wherein the inner peripheral surface of the fixing belt slides on the sliding sheet and an edge part in a width direction of the sliding sheet locates out side of an edge part of the fixing belt in the width direction; a plurality of projections are provided at a first area which is inside of an edge part of the press member in the width direction of a surface of the sliding sheet; and a plurality of projections which are lower than the plurality of the projections provided at the first area are provided at a second area which is near the edge part of the fixing belt of the surface of the sliding sheet, or no projections are provided at the second area.

2. The fixing device according to claim 1 , wherein the second area locates out side of an edge part of the press member in the width direction.

3. The fixing device according to claim 1 , wherein lubricant is coated to the inner peripheral surface of the fixing belt.

4. The fixing device according to claim 3 , further comprising a lubricant coating member which coats the lubricant to the inner peripheral surface of the fixing belt.

5. An image forming apparatus comprising:

an image forming section which forms a toner image on a sheet; and

the fixing device according to claim 1 which fixes the toner image onto the recording sheet by applying heat and pressure.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 20, 2009
From: HANYU, NAOHIKO; KATAYANAGI, HIDETOSHI; TAKADA, MIKIHIKO
To: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.
Reel/Frame 022291/0709 →
Priority Claims (1)
JP 2008-037346 · Feb 19, 2008 · national
Continuity (1)
Related Publication 20090208263A1 · Aug 20, 2009