# US 9,519,244 B2 · Intermediate transfer belt with elastic layer formed on base layer and image forming apparatus including same

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- Number: US 9,519,244 B2
- Document ID: US9519244B2
- Status: Granted
- Kind: B2
- Application number: 14/961,288
- Filed: 2015-12-07
- Published: 2016-06-16
- Granted: 2016-12-13
- Earliest claimed: 2014-12-11
- Assignees: Konica Minolta, Inc.
- Applicants: Konica Minolta, Inc.
- Inventors: Eiichi Yoshida; Sadaaki Sakamoto; Ryo Nakayama
- Web page: https://patentgrep.com/patent/US9519244B2

## CPC

- G03G 15/162: {details of the the intermediate support, e.g. chemical composition}
- G03G: ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY

## Abstract

To provide an intermediate transfer belt having a high ability to transfer images to recording media with irregular surface, and an image forming apparatus including the intermediate transfer belt. The intermediate transfer belt includes a base layer and an elastic layer formed on the base layer, the elastic layer being formed of a rubber composition, wherein the intermediate transfer belt satisfies a specific relational expression.

## Claims

### Claim 1

An intermediate transfer belt comprising:
a base layer; and
an elastic layer formed on the base layer, the elastic layer being formed of a rubber composition,
wherein the intermediate transfer belt satisfies the following Expression (1):
1.30≦[Log(ρv100)/Log(ρv1000)]≦2.50 Expression (1)
where ρv100 represents a volume resistivity [Ω·cm] of the intermediate transfer belt when a voltage of 100V is applied to the intermediate transfer belt in a thickness direction thereof, and ρv1000 represents a volume resistivity [Ω·cm] of the intermediate transfer belt when a voltage of 1000V is applied to the intermediate transfer belt in the thickness direction thereof.

### Claim 2 (depends on 1)

The intermediate transfer belt according to claim 1, wherein the elastic layer has a thickness of 50 to 300 μm.

### Claim 3 (depends on 1)

An image forming apparatus comprising the intermediate transfer belt according to claim 1.

### Claim 4 (depends on 2)

An image forming apparatus comprising the intermediate transfer belt according to claim 2.