IP Library Granted Patent US 10,928,753
Granted Patent B2
US 10,928,753 · App. 16/487,754 · Granted Feb 23, 2021

Spring in a printing fluid developer

Inventors: David Sabo (San Diego, CA); John W. Godden (San Diego, CA); Alex DeRegules (San Diego, CA)
Assignee: HP Indigo B.V.
G03G15/11
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Quick Facts
Patent No.
US 10,928,753
App. No.
16/487,754
Granted
Feb 23, 2021
Kind
B2
Abstract

A printing fluid developer that includes a developer roller; a cleaner roller forming a nip with the developer roller and held by a number of bearings at each end that are free to move within a slot towards and away from the developer roller; and at least one spring biased to force the bearings towards one side of the slot.

Claims (32)

1. A printing fluid developer, comprising:

a developer roller;

a cleaner roller forming a nip with the developer roller and held by a number of bearings at each end that are free to move within a slot towards and away from the developer roller; and

at least one spring biased to force the bearings towards one side of the slot.

2. The printing fluid developer of claim 1 , wherein the cleaner roller comprises at least one bearing coupled to a first end of the cleaner roller and wherein the at least one spring interfaces with the bearing.

3. The printing fluid developer of claim 2 , wherein the number of bearings is two with a bearing being coupled to each of the first end and a second end of the cleaner roller.

4. The printing fluid developer of claim 3 , wherein the at least one spring comprises two springs, with a spring interfacing with the bearing on each end of the cleaner roller.

5. The printing fluid developer of claim 1 , wherein a doctor blade removes an amount of printing fluid from a surface of the cleaner roller.

6. The printing fluid developer of claim 5 , wherein the at least one spring counteracts a force applied by the doctor blade.

7. The printing fluid developer of claim 1 , wherein the slot is formed in an endcap of the printing fluid developer.

8. The printing fluid developer of claim 1 , wherein the at least one spring is made of stainless steel.

9. The printing fluid developer of claim 1 , wherein the at least one spring is coupled to an endcap of the printing fluid developer.

10. The printing fluid developer of claim 1 , wherein the at least one spring comprises a spring with end portions fastened to a support structure, a center portion of the spring in contact with one of the number of bearings at an end of the cleaning roller.

11. A system for preventing vibration of a cleaner roller, comprising:

a printing fluid developer comprising:

a developer roller;

the cleaner roller abutting the developer roller and comprising a bearing coupled to each side of the cleaner roller;

a doctor blade to remove an amount of printing fluid from the cleaner roller; and

at least one spring biased to force the bearings towards a side of a slot that the bearings are free to slide within.

12. The system of claim 11 , wherein the at least one spring applies the force to the cleaner roller via at least one bearing coupled to a terminal end of the cleaner roller.

13. The system of claim 11 , wherein the slot is formed in an endcap of the printing fluid developer.

14. The system of claim 11 , wherein the at least one spring is made of steel.

15. The system of claim 11 , wherein the at least one spring counteracts a force applied by the doctor blade.

16. A printing system, comprising:

a number of printing fluid developers to develop an image onto a surface of a photoconductive member, each of the number of printing fluid developers comprising:

a cleaner roller forming a nip with a developer roller;

a number of bearings, a bearing coupled to each side of the cleaner roller; and

a number of springs biased to force the bearings towards a side of a slot that the bearings are free to slide in.

17. The printing system of claim 16 , wherein each of the number of printing fluid developers further comprises a doctor blade to remove an amount of printing fluid from the surface of the cleaner roller.

18. The printing system of claim 17 , wherein the slot is formed in an endcap of each printing fluid developer.

19. The printing system of claim 17 , wherein a spring of the number of springs counteracts a force applied by the doctor blade.

20. The printing system of claim 16 , wherein each of the number of printing fluid developers further comprises at least one bearing coupled to a terminal end of the cleaner roller, each bearing abutting a spring of the number of springs.

Assignments (2)
CHANGE OF NAME Recorded Nov 5, 2019
From: HEWLETT-PACKARD INDIGO B.V.
To: HP INDIGO B.V.
Reel/Frame 050927/0895 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 29, 2019
From: SABO, DAVID; GODDEN, JOHN W.; DEREGULES, ALEX
To: HEWLETT-PACKARD INDIGO B.V.
Reel/Frame 050872/0146 →
Continuity (1)
Related Publication 20200233340A1 · Jul 23, 2020