Image-Forming Apparatus Having Structure for Stably Supporting Belt Unit

摘要

An image-forming apparatus includes a main body, a belt unit detachably attachable to the main body, a coupling and a first restricting part. The belt unit includes: a first roller defining an axis extending in an axial direction, a second roller opposing the first roller other in a first direction perpendicular to the axial direction, and a belt looped over the first roller and the second roller. The coupling is configured to move in the axial direction to come into engagement with the first roller for inputting a drive force into the first roller. The first restricting part is provided on the main body and is configured to restrict the first roller from moving in a second direction perpendicular to the axial direction and the first direction when the belt unit is attached to the main body.

主权项

1. An image-forming apparatus comprising:
a main body; a belt unit attachable to the main body, the belt unit comprising:
a belt;a first roller defining an axis extending in an axial direction and configured to rotate about the axis; anda second roller opposing the first roller in a first direction perpendicular to the axial direction, the belt being looped over the first roller and the second roller and extending in the first direction; a coupling configured to move in the axial direction to come into engagement with the first roller for inputting a drive force into the first roller; and a first restricting part provided on the main body and configured to restrict the first roller from moving in a second direction perpendicular to the axial direction and the first direction when the belt unit is attached to the main body.