Image forming apparatus having a covering mechanism for a photosensitive drum in a cartridge

An image forming apparatus, comprising:

• a housing;
• a drawer movable between an inner position, in which the drawer is located inside the housing, and an outer position, in which the drawer is located outside the housing;
• and
• a cartridge attachable to the drawer, the cartridge comprising:
• a photosensitive drum rotatable about an axis, the axis extending in a first direction;
• and
• a drum cover movable with respect to the photosensitive drum between a first position, in which the drum cover covers a part of the photosensitive drum, and a second position, in which the part of the photosensitive drum is exposed,
• wherein the drawer includes:
• a guide configured to guide the cartridge in a second direction, when the cartridge is being attached to the drawer, the second direction intersecting with the first direction;
• and
• a contacting portion configured to contact the drum cover and move the drum cover from the first position to the second position in a state where the cartridge is being guided by the guide,
• wherein the housing includes a stopper, the stopper being configured to, in the state where the cartridge is being guided by the guide, stop the cartridge from separating from the guide in a third direction, the third direction intersecting with the first direction and with the second direction,
• wherein, in the state where the cartridge is being guided by the guide, and further in a state where the drum cover is located at the first position and the drum cover is in contact with the contacting portion, the stopper is located to face the cartridge in the third direction,
• wherein the contacting portion extends in the third direction, and
• wherein, in the state where the cartridge is being guided by the guide, and further in the state where the drum cover is located at the first position and where the drum cover is in contact with the contacting portion, a distance between the cartridge and the stopper in the third direction is shorter than a length of the contacting portion in the third direction.