IP Library Granted Patent US 8,463,172
Granted Patent B2
US 8,463,172 · App. 12/893,869 · Granted Jun 11, 2013

Cleaning device and image forming apparatus

Inventor: Satoshi Nishida (Saitama, JP)
Assignee: Konica Minolta Business Technologies, Inc.
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Quick Facts
Patent No.
US 8,463,172
App. No.
12/893,869
Granted
Jun 11, 2013
Kind
B2
Abstract

A cleaning device, including, a first blade to slidably contact with a surface of an image carrier to which a toner including an external additive adheres, a second blade to slidably contact with the surface of the image carrier and to be provided downstream of the first blade in a rotation direction of the image carrier, and a lubricant applying mechanism section to apply a lubricant to the surface of the image carrier, wherein hardness of the first blade is equal to or more than hardness of the second blade.

Claims (54)

1. A cleaning device, comprising:

a first blade to slidably contact with a surface of an image carrier to which a toner including an external additive adheres;

a second blade to slidably contact with the surface of the image carrier and to be provided downstream of the first blade in a rotation direction of the image carrier; and

a lubricant applying mechanism section to apply a lubricant to the surface of the image carrier, wherein

hardness of the first blade is more than hardness of the second blade.

2. The cleaning device according to claim 1 , wherein

the lubricant applying mechanism section is provided downstream of the first blade and upstream of the second blade in the rotation direction of the image carrier.

3. The cleaning device according to claim 1 , wherein

the first blade slidably contacts with the surface of the image carrier from a counter direction of the rotation direction of the image carrier.

4. The cleaning device according to claim 1 , wherein

the second blade slidably contacts with the surface of the image carrier from a trailing direction of the rotation direction of the image carrier.

5. A cleaning device, comprising:

a first blade to slidably contact with a surface of an image carrier to which a toner including an external additive adheres;

a second blade to slidably contact with the surface of the image carrier and to be provided downstream of the first blade in a rotation direction of the image carrier; and

a lubricant applying mechanism section to apply a lubricant to the surface of the image carrier, wherein

a resilient modulus of the first blade is less than a resilient modulus of the second blade.

6. The cleaning device according to claim 5 , wherein

the lubricant applying mechanism section is provided downstream of the first blade and upstream of the second blade in the rotation direction of the image carrier.

7. The cleaning device according to claim 5 , wherein

the first blade slidably contacts with the surface of the image carrier from a counter direction of the rotation direction of the image carrier.

8. The cleaning device according to claim 5 , wherein

the second blade slidably contacts with the surface of the image carrier from a trailing direction of the rotation direction of the image carrier.

9. An image forming apparatus, comprising:

an image forming section to form a toner image on an image carrier with a toner including an external additive;

a paper conveying section to convey paper;

a transfer section to transfer the toner image on the image carrier to the paper conveyed by the paper conveying section;

a fixing section to fix the toner image transferred to the paper; and

a cleaning device to perform cleaning of the image carrier after the transfer, the cleaning device including:

a first blade to slidably contact with a surface of the image carrier to which the toner adheres;

a second blade to slidably contact with the surface of the image carrier and to be provided downstream of the first blade in a rotation direction of the image carrier; and

a lubricant applying mechanism section to apply a lubricant to the surface of the image carrier, wherein

hardness of the first blade is more than hardness of the second blade.

10. The image forming apparatus according to claim 9 , wherein

the lubricant applying mechanism section is provided downstream of the first blade and upstream of the second blade in the rotation direction of the image carrier.

11. The image forming apparatus according to claim 9 , wherein

the first blade slidably contacts with the surface of the image carrier from a counter direction of the rotation direction of the image carrier.

12. The image forming apparatus according to claim 9 , wherein

the second blade slidably contacts with the surface of the image carrier from a trailing direction of the rotation direction of the image carrier.

13. An image forming apparatus, comprising:

an image forming section to form a toner image on an image carrier with a toner including an external additive;

a paper conveying section to convey paper;

a transfer section to transfer the toner image on the image carrier to the paper conveyed by the paper conveying section;

a fixing section to fix the toner image transferred to the paper; and

a cleaning device to perform cleaning of the image carrier after the transfer, the cleaning device including:

a first blade to slidably contact with a surface of the image carrier to which the toner adheres;

a second blade to slidably contact with the surface of the image carrier and to be provided downstream of the first blade in a rotation direction of the image carrier; and

a lubricant applying mechanism section to apply a lubricant to the surface of the image carrier, wherein

a resilient modulus of the first blade is equal to or less than a resilient modulus of the second blade.

14. The image forming apparatus according to claim 13 , wherein

the lubricant applying mechanism section is provided downstream of the first blade and upstream of the second blade in the rotation direction of the image carrier.

15. The image forming apparatus according to claim 13 , wherein

the first blade slidably contacts with the surface of the image carrier from a counter direction of the rotation direction of the image carrier.

16. The image forming apparatus according to claim 13 , wherein

the second blade slidably contacts with the surface of the image carrier from a trailing direction of the rotation direction of the image carrier.

Assignments (2)
MERGER Recorded Mar 5, 2014
From: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.
To: KONICA MINOLTA, INC.
Reel/Frame 032390/0362 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 29, 2010
From: NISHIDA, SATOSHI
To: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.
Reel/Frame 025063/0871 →
Priority Claims (1)
JP 2009-231186 · Oct 5, 2009 · national
Continuity (1)
Related Publication 20110081177A1 · Apr 7, 2011