IP Library Granted Patent US 7,546,072
Granted Patent B2
US 7,546,072 · App. 11/873,587 · Granted Jun 9, 2009

Toner layer thickness regulation member and image forming apparatus having same

Assignee: Bridgestone Corporation
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Quick Facts
Patent No.
US 7,546,072
App. No.
11/873,587
Granted
Jun 9, 2009
Kind
B2
Abstract

There is provided according to the present invention a toner layer thickness regulation member capable of suppressing uneven density during forming an image. There is also provided an image forming apparatus capable of forming an excellent image stably by employing such a toner layer thickness regulation member. A toner layer thickness regulation member 1 has a strip metal plate 2 and an elastic member 3 provided in one side of the metal plate 2 in a width direction and arranged in parallel to a longitudinal direction of the metal plate, wherein the elastic member 3 has hardness of more than 55° and hardness relaxation of less than 2.6°. In addition, an image forming apparatus employs the above-mentioned toner layer thickness regulation member 1.

Claims (9)

1. A toner layer thickness regulation member comprising:

a strip metal plate; and

an elastic member provided in one side of the metal plate in a width direction and arranged in parallel to a longitudinal direction of the metal plate,

wherein the elastic member has hardness of more than 55° and hardness relaxation of less than 2.60.

2. The toner layer thickness regulation member according to claim 1 , wherein the elastic member has hardness of more than 70°.

3. The toner layer thickness regulation member according to claim 1 , wherein the elastic member has hardness of more than 65° and hardness relaxation of less than 2.0°.

4. The toner layer thickness regulation member according to claim 1 , wherein the elastic member has hardness of more than 55° and hardness relaxation of less than 1.2°.

5. The toner layer thickness regulation member according to claim 1 , wherein the elastic member has hardness of less than 85.

6. An image forming apparatus, wherein the toner layer thickness regulation member according to claim 1 is used.

Assignments (2)
ABSORPTION-TYPE COMPANY SPLIT Recorded Aug 26, 2022
From: BRIDGESTONE CORPORATION
To: ARCHEM INC.
Reel/Frame 061328/0297 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 14, 2008
From: SAEKI, SATOSHI
To: BRIDGESTONE CORPORATION
Reel/Frame 020361/0507 →
Priority Claims (2)
JP 2006-282459 · Oct 17, 2006 · national
JP 2007-265625 · Oct 11, 2007 · national
Continuity (1)
Related Publication 20080095555A1 · Apr 24, 2008