# US 2021/0276818 A1 · Pick-up rollers with a flat section

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- Number: US 2021/0276818 A1
- Document ID: US20210276818A1
- Status: Published application
- Kind: A1
- Application number: 17/257,334
- Filed: 2018-11-20
- Published: 2021-09-09
- Earliest claimed: 2018-11-20
- Assignees: Hewlett-Packard Development Company, L.P.
- Applicants: Hewlett-Packard Development Company, L.P.
- Inventors: Shuang-Kun Zhu; Dean J. Richtsmeier; Hao-Hua Zhu
- Web page: https://patentgrep.com/patent/US20210276818A1

## CPC

- B65H 3/0638: {Construction of the rollers or like rotary separators (B65H3/0615 takes precedence; construction of feed or guide rollers B65H27/00)}
- B65H 2301/42324: from top of the pile
- B65H 2404/1112: D-shape
- B65H 2801/03: Image reproduction devices
- B65H 2801/06: Office-type machines, e.g. photocopiers
- B65H: HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES

## Abstract

A pick-up roller (100) comprises a circular body (116) to transition print media towards a print path, the circular body (116) includes a first flat surface (118), a first rim (114) connected to a first distal end (126) of the circular body (116), and a second rim (122) connected to a second distal end (128) of the circular body (116); and a cylindrical connector (124) coupled to the second rim (122), wherein a flat portion of the cylindrical connector (124) is coupled to the second rim (122).

## Claims

### Claim 1

1. A pick-up roller comprising:
a circular body to transition print media towards a print path, the circular body including:
a first flat surface;
a first rim connected to a first distal end of the circular body; and
a second rim connected to a second distal end of the circular body; and
a cylindrical connector coupled to the second rim, wherein a flat portion of the cylindrical connector is coupled to the second rim.

### Claim 2 (depends on 1)

The pick-up roller of claim 1, wherein the circular body includes a second flat surface.

### Claim 3 (depends on 2)

The pick-up roller of claim 2, wherein the second flat surface is parallel to the first flat surface.

### Claim 4 (depends on 1)

The pick-up roller of claim 1, wherein a diameter of the circular body ranges of from about 10.0 millimeters (mm) to about 20.0 mm.

### Claim 5

A system comprising:
a printing device including a print media basket to house print media; and
a pick-up roller to transition the print media, when present, from the print media basket towards a print path, wherein the pick-up roller is positioned above the print media, when present, the pick-up roller including:
a circular body comprising a flat surface; and
a body cover to positioned around the circular body.

### Claim 6 (depends on 5)

The system of claim 5, wherein the body cover is comprised of an elastomeric material.

### Claim 7 (depends on 6)

The system of claim 6, wherein the body cover is removably coupled to the circular body.

### Claim 8 (depends on 6)

The system of claim 6, wherein the body cover is to conform to the structure of the circular body.

### Claim 9 (depends on 5)

The system of claim 5, wherein the pick-up roller is to transition the print media through an upwards slope of the printing device to transition the print media towards the print path.

### Claim 10 (depends on 9)

The system of claim 9, wherein the pick-up roller is to transition the print media through the slope with a height of 15 millimeters (mm).

### Claim 11

A pick-up roller comprising:
a first circular body to exert a force on print media to transition the print media up a slope, the first circular body including:
a flat surface; and
a rim connected to a distal end of the first circular body;
a cylindrical connector connected to the first circular body, wherein the cylindrical connector is coupled to the distal end of the first circular body; and
a body cover coupled to the first circular body.

### Claim 12 (depends on 11)

The pick-up roller of claim 11, wherein an area of the flat surface ranges of from about 40 square millimeters (mm2) to about 200 mm2.

### Claim 13 (depends on 11)

The pick-up roller of claim 11, wherein the pick-up roller has a second circular body attached to the cylindrical connector.

### Claim 14 (depends on 11)

The pick-up roller of claim 11, wherein the first circular body is made of plastic, wherein the plastic is further comprised of Acrylonitrile Butadiene Styrene (ABS), Polycarbonate (PC), High Impact Polystyrene (HIPS), or a combination thereof.

### Claim 15 (depends on 11)

The pick-up roller of claim 11, wherein the first circular body is made of metal, wherein the metal is further comprised of steel, stainless steel, brass, aluminum, or a combination thereof.