Patent ID: 8380107

Claim:
An image forming apparatus comprising: a plurality of photosensitive drums disposed in parallel along an oblique direction inclined with respect to a horizontal plane; a plurality of developer carriers disposed to be opposite to the plurality of photosensitive drums, respectively, each of developer carriers configured to carry developer to be supplied to a respective one of the photosensitive drums, each of the developer carriers being rotatable around a respective rotation axis, each rotation axis extending along a respective axial direction; a transfer unit disposed along the oblique direction and opposing the plurality of the photosensitive drums from an obliquely upper side, the transfer unit having a transfer belt, and having a transfer roller that contacts an outer circumference surface of the transfer belt; a plurality of developer cartridges which corresponds to the plurality of developer carriers, respectively, wherein a longitudinal direction of each of the developer cartridges intersects the oblique direction and is perpendicular to the axial direction of the developer carriers; and a housing including: a sheet discharging tray configured to receive the sheet; and a plurality of attachment portions configured to accommodate each of the plurality of developer cartridges, wherein at least one of the plurality of attachment portions overlaps the sheet discharging tray when viewing the housing from the axial direction.