# US 5,708,924 A · Customer replaceable photoreceptor belt module

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- Number: US 5,708,924 A
- Document ID: US5708924A
- Status: Granted
- Kind: A
- Application number: 08/724,587
- Filed: 1996-09-30
- Granted: 1998-01-13
- Earliest claimed: 1996-09-30
- Assignees: Xerox Corporation
- Inventors: David K. Shogren; Larry L. Jenkins
- Web page: https://patentgrep.com/patent/US5708924A

## CPC

- G03G 15/754: {relating to band, e.g. tensioning (G03G15/757 takes precedence)}
- G03G 21/1671: {for the photosensitive element}
- G03G 2221/1615: being a belt
- G03G 2221/1807: Transport of supply parts, e.g. process cartridges
- G03G: ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY

## Abstract

A customer replaceable unit includes a cover and support structure for supporting a photoreceptor belt while it is packaged, shipped and inserted over drive and idler rolls in a machine. It prevents a machine operator from having to handle the belt itself and provides protection from extrinsic damage.

## Claims

### Claim 1

An arrangement for ease in installing a belt into and removing the belt from a printing machine, comprising;
a belt support module stationarily positioned within the printing machine and adapted to support a belt thereon, said belt support module including a belt support structure, a drive roll, a retractable belt tensioning roll, a stripping roll and an idler roll, track members, backer bars movable between retracted and non-retracted positions, and hold down springs movable between retracted and non-retracted positions; and
a customer replaceable unit adapted to be mounted onto said belt support module within the printer, said customer replaceable unit including a belt, and a frame configured in the approximate shape of said belt once said belt is in position within the printing machine, and wherein said frame includes guide members that mate with said track members of said belt support module during insertion of said customer replaceable unit into the printer.

### Claim 2 (depends on 1)

The arrangement of claim 1, wherein said belt is photosensitive.

### Claim 3 (depends on 2)

The arrangement of claim 2, wherein said tensioning roll is in a retracted position when said customer replaceable unit is inserted into the printer.

### Claim 4 (depends on 3)

The arrangement of claim 3, wherein backer bars are in a retracted position when said customer replaceable unit is inserted into the printer.

### Claim 5 (depends on 4)

The arrangement of claim 4, wherein during insertion of said customer replaceable unit onto said belt module said frame holds said photosensitive belt in position until it is located over said drive, tensioning, stripping and idler rolls of said belt module.

### Claim 6 (depends on 5)

The arrangement of claim 5, wherein said tensioning roll is moved into a non-retracted position once said customer replaceable unit is installed within the printer.

### Claim 7 (depends on 6)

The arrangement of claim 6, wherein said backer bars and said hold down springs are in said non-retracted position while said customer replaceable unit is being removed from said belt module.

### Claim 8 (depends on 7)

The arrangement of claim 7, including a cover member adapted to cover said photosensitive belt during packaging, shipping, and insertion onto said belt module of the printer, said cover member comprising two articulatable sides and a removable end portion, said end portion being adapted for removal in order for said customer replaceable unit to be positioned onto said photoreceptor belt support module.