IP Library › Granted Patent US 8,774,695
Granted Patent B2
US 8,774,695 · App. 13/104,116 · Granted Jul 8, 2014

Cleaning device and image-forming device

Inventors: Kazuteru Ishizuka (Saitama, JP); Takashi Akazawa (Hachioji, JP); Daiki Yamanaka (Sagamihara, JP)
Assignee: Konica Minolta Business Technologies, Inc.
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Quick Facts
Patent No.
US 8,774,695
App. No.
13/104,116
Granted
Jul 8, 2014
Kind
B2
Abstract

A cleaning device comprises: a rotational brush disposed to touch an image holder and a lubricant, the brush which scrapes the lubricant and applies the scraped lubricant to the image holder, the brush including: a rotational axis; and a plurality of looped bristles disposed around the rotational axis, wherein a contact length of the bristles to the lubricant is longer than a contact length of the bristles to the image holder.

Claims (34)

1. A cleaning device comprising:

a rotational brush disposed to touch an image holder and a lubricant, the brush which scrapes the lubricant and applies the scraped lubricant to the image holder, the brush including:

a rotational axis; and

a plurality of looped bristles disposed around the rotational axis, wherein

a contact length of the bristles to the lubricant is longer than a contact length of the bristles to the image holder, and

wherein a pressing force at which the lubricant presses the bristles is larger than a pressing force at which the bristles press the image holder and is more than 0.7[N] and less than 2.5 [N].

2. The cleaning device of claim 1 , further comprising a pressing member which presses the lubricant on the brush.

3. The cleaning device of claim 1 , wherein the lubricant is a solid lubricant.

4. The cleaning device of claim 1 , further comprising a remover behind the brush in a rotational direction of the image holder, the remover which removes a residue from the image holder.

5. An image-forming device comprising:

an image holder;

a lubricant; and

a rotational brush disposed to touch the image holder and the lubricant, the brush including:

a rotational axis; and

a plurality of looped bristles disposed around the rotational axis, wherein

a contact length of the bristles to the lubricant is longer than a contact length of the bristles to the image holder, and

wherein a pressing force at which the lubricant presses the bristles is larger than a pressing force at which the bristles press the image holder and is more than 0.7[N] and less than 2.5 [N].

6. A cleaning device comprising:

a rotational brush disposed to touch an image holder and a lubricant, the brush which scrapes the lubricant and applies the scraped lubricant to the image holder, the brush including:

a rotational axis; and

a plurality of looped bristles disposed around the rotational axis, wherein

a contact length of the bristles to the lubricant is longer than a contact length of the bristles to the image holder, and

wherein the bristles are larger than 2 denier and smaller than 4 denier, fiber density of the bristles is more than 100 [kF/inch^2] and equal to or less than 180 [kF/inch^2], and a diameter of the brush is larger than 11 [mm] and smaller than 12[mm].

7. The cleaning device of claim 6 , further comprising a pressing member which presses the lubricant on the brush.

8. The cleaning device of claim 6 , wherein the lubricant is a solid lubricant.

9. The cleaning device of claim 6 , further comprising a remover behind the brush in a rotational direction of the image holder, the remover which removes a residue from the image holder.

10. An image-forming device comprising:

an image holder;

a lubricant; and

a rotational brush disposed to touch the image holder and the lubricant, the brush including:

a rotational axis; and

a plurality of looped bristles disposed around the rotational axis, wherein

a contact length of the bristles to the lubricant is longer than a contact length of the bristles to the image holder, and

wherein the bristles are larger than 2 denier and smaller than 4 denier, fiber density of the bristles is more than 100 [kF/inch^2] and equal to or less than 180 [kF/inch^2], and a diameter of the brush is larger than 11 [mm] and smaller than 12[mm].

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 10, 2011
From: ISHIZUKA, KAZUTERU; AKAZAWA, TAKASHI; YAMANAKA, DAIKI
To: KONICA MINOLTA BUSINESS TECHONOLOGIES, INC.
Reel/Frame 026250/0647 →
Priority Claims (1)
JP 2010-109142 · May 11, 2010 · national
Continuity (1)
Related Publication 20110280637A1 · Nov 17, 2011