# US 10,310,417 B2 · Mounting surfaces for wiper blades

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- Number: US 10,310,417 B2
- Document ID: US10310417B2
- Status: Granted
- Kind: B2
- Application number: 15/748,637
- Filed: 2016-01-29
- Published: 2019-01-03
- Granted: 2019-06-04
- Earliest claimed: 2016-01-29
- Assignees: HP Indigo B.V.
- Applicants: HP Indigo B.V.
- Inventors: Eric G. Nelson; Lavi Cohen
- Web page: https://patentgrep.com/patent/US10310417B2

## CPC

- G03G 15/095: Removing excess solid developer {, e.g. fog preventing}
- G03G 15/11: Removing excess liquid developer, e.g. by heat
- G03G 15/0812: {characterised by the developer regulating means, e.g. structure of doctor blade}
- G03G 15/104: {Preparing, mixing, transporting or dispensing developer}
- G03G: ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY

## Abstract

In example implementations, an apparatus includes a planar surface, a curved mounting surface and a wiper blade. The curved mounting surface may be coupled adjacent to the planar surface. The wiper blade may be clamped to the planar surface. A bottom of the wiper blade can rest on the curved mounting surface such that a free length of the wiper blade is different at a plurality of points along a width of the wiper blade.

## Claims

### Claim 1

An apparatus, comprising:
a planar surface;
a curved mounting surface coupled adjacent to the planar surface; and
a wiper blade clamped to the planar surface, wherein a bottom of the wiper blade rests on the curved mounting surface such that a free length of the wiper blade is different at a plurality of points along a width of the wiper blade.

### Claim 2 (depends on 1)

The apparatus of claim 1, wherein the curved mounting surface comprises a parabolic curve.

### Claim 3 (depends on 1)

The apparatus of claim 1, wherein an amount of curvature in the curved mounting surface is a function of an amount of pre-load force applied to the wiper blade.

### Claim 4 (depends on 3)

The apparatus of claim 3, wherein the amount of curvature is a function of a width of a binary ink developer (BID), a stiffness of the wiper blade, a stiffness of a wiper blade holder and an amount of pre-load force that is applied.

### Claim 5 (depends on 1)

The apparatus of claim 1, wherein the wiper blade applies a uniform angle of attack along a width of a cleaner roller.

### Claim 6

An apparatus, comprising:
a non-planar surface;
a curved mounting surface coupled adjacent to the non-planar surface; and
a wiper blade clamped to the non-planar surface, wherein the non-planar surface adjusts an amount of deflection and a free length along a width of the wiper blade, wherein a bottom of the wiper blade rests on the curved mounting surface such that the free length of the wiper blade is different at a plurality of points along the width of the wiper blade.

### Claim 7 (depends on 6)

The apparatus of claim 6, wherein the curved mounting surface comprises a parabolic curve.

### Claim 8 (depends on 6)

The apparatus of claim 6, wherein an amount of curvature of the curved mounting surface is a function of a width of a binary ink developer (BID), a stiffness of the wiper blade, a stiffness of a wiper blade holder and an amount of pre-load force that is applied.

### Claim 9 (depends on 6)

The apparatus of claim 6, wherein the non-planar surface comprises a curve.

### Claim 10 (depends on 6)

The apparatus of claim 6, wherein the non-planar surface comprises a plurality of different curves along a width of the non-planar surface.

### Claim 11 (depends on 10)

The apparatus of claim 10, wherein each one of the plurality of different curves has a different curvature.

### Claim 12 (depends on 6)

The apparatus of claim 6, wherein the wiper blade applies a uniform amount of tip force and a uniform angle of attack along a width of a cleaner roller.

### Claim 13

A binary ink developer (BID) section, comprising:
a developer roller;
a cleaner roller to clean excess printing fluid off of the developer roller;
a wiper blade to clean the cleaner roller;
a wiper blade holder comprising a curved mounting surface, wherein the wiper blade is clamped on the curved mounting surface of the wiper blade holder, wherein the curved mounting surface adjusts the wiper blade to provide a uniform angle of attack along a width of the cleaner roller.

### Claim 14 (depends on 13)

The BID section of claim 13, wherein a top portion of the wiper blade holder comprises a curvature.

### Claim 15 (depends on 14)

The BID section of claim 14, wherein the wiper blade holder comprises a non-planar surface that adjusts an amount of deflection along a width of the wiper blade such that the wiper blade applies a uniform amount of tip force along a width of the cleaner roller.