IP Library Granted Patent US 8,116,655
Granted Patent B2
US 8,116,655 · App. 12/252,419 · Granted Feb 14, 2012

Charge roller cleaning member for use in media processing device

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Quick Facts
Patent No.
US 8,116,655
App. No.
12/252,419
Granted
Feb 14, 2012
Kind
B2
Abstract

A segmented cleaning member for removing particulate from a charge roller of a media processing device. The cleaning member in one embodiment includes a substrate and an open-cell foam cleaning pad disposed onto the substrate. The cleaning pad is segmented by a plurality of cuts into a plurality of longitudinal sections capable of contacting the charge roller for removing the particulate from the charge roller. Various cut patterns made be used to form the sections. The cleaning member can be used in media processing device and cartridge therefor for removing the particulate from the charge roller.

Claims (31)

1. A cleaning member for removing particulate from a charge roller of a media processing device, the cleaning member comprising:

a cleaning pad, the cleaning pad segmented into a plurality of sections, the plurality of sections being formed by a plurality of cuts extending generally along the longitudinal face of the cleaning pad, the plurality of cuts each having a depth that is less than a thickness of the cleaning pad, the plurality of sections capable of contacting the charge roller for removing the particulate from the charge roller.

2. The cleaning member of claim 1 further comprising a substrate with the cleaning pad disposed on a surface thereof.

3. The cleaning member of claim 2 further comprising at least one of an adhesive and a primer applied between the substrate and the cleaning pad, wherein the at least one of the adhesive and the primer affixes the cleaning pad onto the substrate for disposing the cleaning pad onto the substrate.

4. The cleaning member of claim 2 wherein the substrate comprises a material selected from the group consisting of a polymeric material, a metallic material, a composite material, and a ceramic material.

5. The cleaning member of claim 4 wherein the polymeric material is selected from the group consisting of polyester, polycarbonate, polyetherimide, polyurethane, natural rubber, synthetic rubber, styrene-butadiene copolymer, and combinations thereof.

6. The cleaning member of claim 1 wherein the cleaning pad comprises open-celled foam.

7. The cleaning member of claim 6 wherein the open-celled foam comprises a polymeric material selected from the group consisting of polyurethane, polyolefin, silicone, and combinations thereof.

8. The cleaning member of claim 6 wherein the open-celled foam has a density ranging from about 0.5 to about 14 pounds per cubic foot.

9. The cleaning member of claim 1 wherein the plurality of cuts is in one of a pattern of approximately parallel cuts, diagonal cuts, X-shaped cuts, wavy cuts, C-shaped cuts, and combinations of the foregoing.

10. A cartridge for an image forming device, comprising:

a photoconductor drum;

a charge roller, removably coupled to the photoconductor drum, for charging the photoconductor drum; and

a cleaning member configured adjacent to the charge roller, the cleaning member capable of removing particulate from the charge roller, the cleaning member comprising:

a cleaning pad, the cleaning pad segmented into a plurality of longitudinal sections, the plurality of sections being formed by a plurality of cuts in the cleaning pad, the plurality of cuts each having a depth that is less than a thickness of the cleaning pad, the plurality of sections capable of contacting the charge roller for removing the particulate from the charge roller.

11. The cartridge of claim 10 wherein the cleaning member further comprises a substrate with the cleaning pad disposed on a surface thereof.

12. The cartridge of claim 11 wherein the substrate comprises a material selected from the group consisting of a polymeric material, a metallic material, a composite material, and a ceramic material.

13. The cartridge of claim 12 wherein the polymeric material is selected from the group consisting of polyester, polyurethane, polycarbonate, natural rubber, synthetic rubber, styrene-butadiene copolymer, polyetherimide and combinations thereof.

14. The cartridge of claim 10 further comprising a support bracket, the cleaning member being attached to the support bracket.

15. The cartridge of claim 10 wherein the cleaning pad comprises open-celled foam.

16. The cartridge of claim 15 wherein the open-celled foam comprises a polymeric material selected from the group consisting of polyurethane, polyolefin, silicone, and combinations thereof.

17. The cartridge of claim 15 wherein the open-celled foam has a density ranging from about 0.5 to about 14 pounds per cubic foot.

18. The cartridge of claim 10 wherein the plurality of cuts is in one of a pattern of approximately parallel cuts, diagonal cuts, X-shaped cuts, wavy cuts, C-shaped cuts, and combinations of the foregoing.

19. A media processing device comprising:

a photoconductor drum capable of forming electrostatic latent images thereon;

a charge roller for charging the photoconductor drum removably coupled to the photoconductor drum, the charge roller moveable between a working position and a storage position; and

a cleaning member configured adjacent to the charge roller in the storage position, the cleaning member capable of removing particulate from the charge roller, the cleaning member comprising:

an open-celled foam cleaning pad segmented into a plurality of longitudinal sections formed by a plurality of cuts, the plurality of cuts each having a depth that is less than a thickness of the cleaning pad, the plurality of sections capable of contacting the charge roller for removing the particulate from the charge roller.

20. The media processing device of claim 19 wherein the open-celled foam comprises a polymeric material selected from the group consisting of polyurethane, polyolefin, silicone, and combinations thereof.

21. The media processing device of claim 19 wherein the open-celled foam has a density ranging from about 0.5 to about 14 pounds per cubic foot.

22. The media processing device of claim 19 further comprising a support bracket and the cleaning member further comprising a substrate with the cleaning pad being attached to the substrate and the substrate being attached to the support bracket.

Assignments (4)
RELEASE OF SECURITY INTEREST Recorded Jan 18, 2024
From: CHINA CITIC BANK CORPORATION LIMITED, GUANGZHOU BRANCH, AS COLLATERAL AGENT
To: LEXMARK INTERNATIONAL, INC.
Reel/Frame 066345/0026 →
CORRECTIVE ASSIGNMENT TO CORRECT THE INCORRECT U.S. PATENT NUMBER PREVIOUSLY RECORDED AT REEL: 046989 FRAME: 0396. ASSIGNOR(S) HEREBY CONFIRMS THE PATENT SECURITY AGREEMENT. Recorded Oct 24, 2018
From: LEXMARK INTERNATIONAL, INC.
To: CHINA CITIC BANK CORPORATION LIMITED, GUANGZHOU BRANCH, AS COLLATERAL AGENT
Reel/Frame 047760/0795 →
PATENT SECURITY AGREEMENT Recorded Aug 30, 2018
From: LEXMARK INTERNATIONAL, INC.
To: CHINA CITIC BANK CORPORATION LIMITED, GUANGZHOU BRANCH, AS COLLATERAL AGENT
Reel/Frame 046989/0396 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 16, 2008
From: GOEBEL, BENJAMIN JOHN; MILLER, CHRISTIAN BLAIR
To: LEXMARK INTERNATIONAL, INC.
Reel/Frame 021689/0184 →