Belt and drawer configuration for an image forming apparatus

An image forming apparatus comprising:

• a plurality of photoconductive drums arranged along an arranging direction, rotation axes of the plurality of photoconductive drums being arranged in parallel;
• a drawer configured to be movable between a coupled position and an uncoupled position while holding the plurality of photoconductive drums;
• a pair of frames arranged on both sides in an axial direction of the plurality of photoconductive drums, the pair of frames having drawer supporting parts configured to movably support the drawer;
• a belt unit having an endless belt configured to proceed in the arranging direction, the endless belt having an extending surface which is configured to contact the plurality of photoconductive drums and a plurality of transfer members;
• belt unit supporting parts respectively provided to the pair of frames, the belt unit supporting parts supporting the belt unit when the drawer is in the coupled position and when the drawer is in the uncoupled position;
• first contacting parts respectively provided to the pair of frames, the first contacting parts contacting first contacted parts provided to the drawer to position the drawer with respect to the pair of frames;
• and
• second contacting parts provided to the drawer, the second contacting parts contacting second contacted parts provided to the belt unit to position the belt unit with respect to the drawer,
• wherein, only when the drawer is located at the coupled position with the belt unit being supported by the belt unit supporting parts:
• the drawer is positioned with respect to the pair of frames as the first contacting parts contact the first contacted parts, respectively;
• and
• the belt unit is positioned with respect to the drawer as the second contacting parts contact the second contacted parts, respectively.