Elastic body roller

An elastic body roller for feeding a belt-shaped member, the elastic body roller comprising:

• a roller shaft;
• and
• an elastic material member surrounding the roller shaft, the elastic material member configured to feed the belt-shaped member by making contact with the belt-shaped member, the elastic material member including:
• an inner layer elastic material member disposed on an outer periphery of the roller shaft, the inner layer elastic material member having a rubber hardness of 30 to 80 degrees according to a Durometer Hardness Testing Method Type A defined in JIS K6253, the inner layer elastic material member being configured with a plurality of inner layer grooves along a circumferential direction thereof, the inner layer grooves having a width of 25 to 1300 μm, the inner layer grooves having a height of 25 to 500 μm, the inner layer grooves having a V-shaped cross-section and a groove angle of 50 to 120 degrees;
• and
• an outer layer elastic material member disposed on an outer periphery of the inner layer elastic material member, the outer layer elastic material member configured to make contact with the belt-shaped member, the outer layer elastic material member being formed from a silicone resin having a hardness of 20 degrees or less based on a spring type hardness tester Asker C in accordance with SRIS 0101, the outer layer elastic material member having a thickness of 10 to 100 μm, and the outer layer elastic material member is configured with a plurality of outer layer grooves along a circumferential direction thereof.