Patent ID: 8155559

Claim:
An image-forming device comprising: a body frame having a first contacting part and a second contacting part; and a belt unit detachably mounted in the body frame comprising: a belt unit main frame having a first main end portion and a second main end portion in a first direction and a third main end portion and a fourth main end portion in a second direction orthogonal to the first direction; a first roller disposed at the first main end portion; a second roller disposed at the second main end portion; a belt mounted around the first roller and the second roller; a belt unit side frame attached to at least one of the third main end portion and the fourth main end portion; a handle part disposed at the first main end portion; a first contacted part provided on the handle part to contact the first contacting part; and a second contacted part provided on one of the belt unit main frame and the belt unit side frame to contact the second contacting part, the second contacted part being closer to the second roller than the first roller, wherein the belt unit side frame has a first side end portion and a second side end portion in the second direction, the first side end portion being attached to the at least one of the third main end portion and the fourth main end portion, wherein the first contacted part is disposed between a first plane passing thorough the first side end portion and a second plane passing through the second side end portion, the first plane and the second plane being provided at the same side of the belt unit in the second direction and extending in parallel in a direction orthogonal to the belt surface, wherein the belt unit side frame has a height orthogonal to both the first direction and the second direction, and wherein the handle part has space therein, the first contacted part being disposed within the height in the space.