IP Library Granted Patent US 7,532,843
Granted Patent B2
US 7,532,843 · App. 11/204,610 · Granted May 12, 2009

Image forming substance engaging device

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Quick Facts
Patent No.
US 7,532,843
App. No.
11/204,610
Granted
May 12, 2009
Kind
B2
Abstract

The present invention relates to engagement or transfer of an image forming substance within a reservoir of an image forming apparatus. This may be achieved by a device such as a paddle that may include an additional component for engagement or transfer of the image forming substance. The component may be, for example, wire material. The component may also include a body section and an axially aligned projection.

Claims (11)

1. A paddle for engaging image forming material in a reservoir having an interior surface of irregular geometry, said paddle comprising an axially elongated section radially extending in a single direction from an axis of rotation of said paddle, capable of rotating in said reservoir and having an end face including a component for reaching said interior surface of irregular geometry, said component having a compliant polymeric body section having no openings therein attached to said end face and defined completely in a single first plane that is perpendicular to said axially elongated section having a front opposite said end face, a side and an axially aligned projection extending from said body section and not adjacent any other portion of said body and a formed edge reaching said surface of irregular geometry during rotation of said paddle for removing said image forming material from said surface not reached by said elongated section of said paddle, said formed edge defined completely in a single second plane directly adjoining said first plane, wherein said axially aligned projection and said formed edge are located along said side of the body section and said second plane defined by said formed edge is angled at an angle α between greater than 0 and less than 180 degrees from said front of said body section, wherein said front of said body section is positioned nearest said reservoir surface, wherein said axially aligned projection extends to reach a corresponding surface in said reservoir, in both axial and radial directions of said reservoir and wherein said compliant body section minimizes torque on said paddle as it rotates though said image forming material in said reservoir while allowing said edge to maintain contact with said surface of irregular geometry of said reservoir.

2. The component of claim 1 wherein said formed edge extends along said axially aligned projection.

3. The component of claim 1 wherein said polymeric material is polyester.

4. A device for containing image forming material comprising:

a enclosed reservoir including an irregular interior surface and a paddle comprising an axially elongated section radially extending in a single direction from an axis of rotation of said paddle capable of rotating in said reservoir and having an end face; and

a component attached to said paddle for engaging said image forming material including a compliant polymeric body section having no openings therethrough attached to said end face and defined completely in a single first plane that is perpendicular to said axially elongated section having a front opposite said end face and a side wherein said body includes an axially aligned projection extending from said body section and not adjacent any other portion of said body and a formed edge reaching said irregular surface during rotation of said paddle for removing said image forming material from said surface not reached by said elongated section of said paddle, said formed edge defined completely in a single second plane directly adjoining said first plane, wherein said axially aligned projection and said formed edge are located along said side of the body section and said second plane defined by said formed edge is at an angle α between greater than 0 and less than 180 degrees from said front of said body, wherein said front of said body section is positioned nearest said reservoir surface, wherein said axially aligned projection extends to reach a corresponding interior surface in said reservoir, in both axial and radial directions of said reservoir and wherein said compliant body section minimizes torque on said paddle as it rotates though said image forming material in said reservoir while allowing said edge to maintain contact with said surface of irregular geometry of said reservoir.

5. The device of claim 4 wherein said formed edge extends along said axially aligned projection.

6. An image forming apparatus containing image forming material comprising:

a reservoir including an irregular interior surface and a paddle comprising an axially elongated section radially extending in a single direction from an axis of rotation of said paddle having an end face capable of rotating in said reservoir; and

a component attached to said paddle for engaging said image forming material including a compliant polymeric body section having no openings therethrough attached to said end face and defined completely in a single first plane that is perpendicular to said axially elongated section having a front opposite said end face, and a side wherein said body includes an axially aligned projection extending from said body section and not adjacent any other portion of said body and a formed edge reaching said irregular surface during rotation of said paddle for removing said image forming material from said surface not reached by said elongated section of said paddle, said formed edge defined completely in a single second plane directly adjoining said first plane, wherein said axially aligned projection and said formed edge are located along said side of the body section and said second plane defined by said formed edge is angled at an angle α between greater than 0 and less than 180 degrees from said front of said body section, wherein said front of said body section is positioned nearest said reservoir surface, wherein said axially aligned projection extends to reach a corresponding interior surface in said reservoir, in both axial and radial directions of said reservoir and wherein said compliant body section minimizes torque on said paddle as it rotates though said image forming material in said reservoir while allowing said edge to maintain contact with said surface of irregular geometry of said reservoir.

7. The image forming apparatus of claim 6 wherein said formed edge extends along said axially aligned projection.

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 Aug 16, 2005
From: KERN, ROYDEN THOMAS; MERRIFIELD, DAVID LEE
To: LEXMARK INTERNATIONAL, INC.
Reel/Frame 016872/0945 →