Patent ID: 8682232

Claim:
An image forming device having a cleaning device that removes an adhered object on an endless belt body by contacting the endless belt body, which rotates while under tension, wherein the endless belt body is formed with the following conditions: an indentation Young's modulus is equal to or more than 5.5 GPa and is equal to or less than 10.0 GPa, and a specularity of a contacting surface that contacts the cleaning device is equal to or more than 50 and less than 100, wherein the specularity of the contacting surface is determined by calculating a clarity of a benchmark reflection image appearing on the surface of an object to be measured with a relative value of a benchmark piece and a target object based on variability of a brightness value distribution, and a measurement of specularity can range from 0 which indicates a low benchmark to 1,000 which indicates a high benchmark.