IP Library › Granted Patent US 8,798,501
Granted Patent B2
US 8,798,501 · App. 13/558,205 · Granted Aug 5, 2014

Cover member and cartridge

Inventors: Naoki Hayashi (Kawasaki, JP); Shigeo Miyabe (Yokohama, JP)
Assignee: Canon Kabushiki Kaisha
G03G15/0896G03G2221/163G03G2221/1654G03G21/16G03G2215/0177
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Quick Facts
Patent No.
US 8,798,501
App. No.
13/558,205
Granted
Aug 5, 2014
Kind
B2
Abstract

A cover member is mounted on a cartridge including a developer bearing member for providing a developer for developing an electrostatic latent image, and a grip portion to be gripped, and cover an exposed part of the developer bearing member exposed outside a frame member of the cartridge includes a portion configured to partition a space between the grip portion and the exposed part when the cover member is mounted on the cartridge.

Claims (25)

1. A cover member mounted on a cartridge including a developer bearing member for providing a developer for developing an electrostatic latent image, and a grip portion to be gripped and cover an exposed part of the developer bearing member exposed outside a frame member of the cartridge, the cover member comprising:

a partitioning portion configured to partition a space between the grip portion and the exposed part when the cover member is mounted on the cartridge, and

an opening portion configured to be located between the partitioning portion and the exposed part when the cover member is mounted on the cartridge, and configured to pass through the cover member.

2. The cover member according to claim 1 , further comprising a plurality of openings as the opening portion, arranged in a longitudinal direction of the developer bearing member.

3. The cover member according to claim 1 , further comprising a plurality of openings as the opening portion, arranged in a longitudinal direction of the developer bearing member.

4. The cover member according to claim 1 , wherein the partitioning portion extends in a longitudinal direction of the developer bearing member.

5. The cover member according to claim 1 , wherein the cover member covers the grip portion when the cover member is mounted on the cartridge.

6. The cover member according to claim 1 , further comprising an engaging portion configured to engage with the grip portion.

7. The cover member according to claim 1 , wherein the partitioning portion protrudes from the cover member in a direction toward the cartridge.

8. A cartridge comprising a developer bearing member for providing a developer for developing an electrostatic latent image, and a grip portion to be gripped,

wherein a cover member is mounted on the cartridge, covering an exposed part of the developer bearing member exposed outside a frame member of the cartridge, and includes a portion partitioning a space between the grip portion and the exposed part, and

wherein the cover member includes an opening portion located between the partitioning portion and the exposed part, and configured to pass through the cover member.

9. The cartridge according to claim 8 , wherein a height of the partitioning portion is greater than a distance from the opening portion to the cartridge.

10. The cartridge according to claim 8 , wherein the cover member includes a plurality of openings as the opening portion, arranged in a longitudinal direction of the developer bearing member.

11. The cartridge according to claim 8 , wherein the developer is applied to the developer bearing member when the cartridge is unused.

12. The cartridge according to claim 8 , further comprising a developer supply member configured to contact the developer bearing member and supply the developer to the developer bearing member,

wherein the developer is applied to at least either the developer bearing member or the developer supply member when the cartridge is unused.

13. The cartridge according to claim 8 , wherein the partitioning portion extends in a longitudinal direction of the developer bearing member.

14. The cartridge according to claim 8 , wherein the cover member covers the grip portion.

15. The cartridge according to claim 8 , wherein the cover member includes an engaging portion configured to engage with the grip portion.

16. The cartridge according to claim 8 , wherein the partitioning portion protrudes from the cover member in a direction toward the cartridge.

17. A cartridge comprising a developer bearing member for providing a developer for developing an electrostatic latent image, and a grip portion to be gripped,

wherein a cover member is mounted on the cartridge, covering an exposed part of the developer bearing member exposed outside a frame member of the cartridge, and includes a portion partitioning a space between the grip portion and the exposed part;

a developer regulating member configured to regulate a layer thickness of the developer carried by the developer bearing member,

wherein the partitioning portion protrudes in a direction toward the developer regulating member.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 23, 2012
From: HAYASHI, NAOKI; MIYABE, SHIGEO
To: CANON KABUSHIKI KAISHA
Reel/Frame 029170/0427 →
Priority Claims (1)
JP 2011-166759 · Jul 29, 2011 · national
Continuity (1)
Related Publication 20130028635A1 · Jan 31, 2013