Patent ID: 8364056

Claim:
An image forming device comprising: a main casing formed with an opening; a photosensitive-member unit disposed at a mounting position within the main casing and including a plurality of photosensitive members aligned in a line along a first direction, the photosensitive-member unit being movable in the first direction with respect to the main casing; and a belt disposed in confrontation with the plurality of photosensitive members, wherein: the photosensitive-member unit is pulled out of the main casing through the opening when pulled in a pull-out direction parallel to the first direction; the photosensitive-member unit is provided with a cleaning member that is disposed on an upstream side of a most-upstream one of the photosensitive members with respect to the pull-out direction; the cleaning member slidingly contacts the belt when the photosensitive-member unit is moved with respect to the main casing; and the cleaning member is located at a predetermined position separate from the belt when the photosensitive-member unit is at the mounting position.