# US 8,770,384 B2 · Transportation unit and image forming apparatus

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- Number: US 8,770,384 B2
- Document ID: US8770384B2
- Status: Granted
- Kind: B2
- Application number: 13/049,949
- Filed: 2011-03-17
- Published: 2011-09-22
- Granted: 2014-07-08
- Earliest claimed: 2010-03-17
- Assignees: Oki Data Corporation
- Applicants: Takayuki Takazawa
- Inventors: Takayuki Takazawa
- Web page: https://patentgrep.com/patent/US8770384B2

## CPC

- G03G 15/1685: {Structure, details of the transfer member, e.g. chemical composition}
- G03G 2215/1623: Transfer belt
- G03G: ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY

## Abstract

A transportation unit includes a transportation member and a cleaning member for cleaning foreign matters attached to a surface of the transportation member. The transportation member has the surface with a contact angle θ relative to n-dodecane between 10° and 45° (10°≦θ≦45°) and a mirror index M between 60 and 200 (60≦M≦200).

## Claims

### Claim 1

A belt to be disposed in an image forming apparatus having a cleaning member arranged to abut against the belt for removing foreign matters attached to the belt, comprising:
a surface having a contact angle θ relative to n-dodecane between 10° and 45° (10°≦θ≦45°) and a mirror index M between 60 and 95 (60≦M≦95).

### Claim 2 (depends on 1)

The belt according to claim 1, wherein said belt is formed of a polyamide-imide.

### Claim 3 (depends on 1)

The belt according to claim 1, wherein said belt contains an oil repellent component in an amount between 0.05 weight % and 0.30 weight % relative to a solid component of the belt.

### Claim 4 (depends on 3)

The belt according to claim 3, wherein said belt contains the oil repellent component having a fluoroalkyl group as a main chain.

### Claim 5 (depends on 1)

The belt according to claim 1, wherein said belt is formed of an endless belt.

### Claim 6 (depends on 1)

The image forming apparatus comprising the belt according to claim 1 and the cleaning member arranged to abut against the belt for removing the foreign matters attached to the belt.

### Claim 7 (depends on 6)

The image forming apparatus according to claim 6, wherein said cleaning member includes an elastic member.

### Claim 8 (depends on 7)

The image forming apparatus according to claim 7, wherein said elastic member includes a urethane rubber.

### Claim 9 (depends on 6)

The image forming apparatus according to claim 6, wherein said foreign matters are toner.