Patent ID: 8052276

Claim:
An image forming apparatus, comprising: an image forming member configured to form an image on a sheet; and a belt conveying device configured to convey the sheet and including first and second rollers, a conveying belt having an endless belt-like shape and looped over at least the first and second rollers, a platen guide provided between the first and second rollers in a sheet conveyance direction and configured to guide the conveying belt to form a substantially flat plane surface, a support configured to support at least one end of the second roller, said one end being in an axial direction of the second roller, an adjuster configured to adjust a position of the support, and a frame configured to support the belt conveying device, wherein the adjuster adjusts the position of the support in a first direction perpendicular to the sheet conveyance direction, by applying a force vertically in the first direction to adjust the position of the support, the adjuster is attached downward in a second direction to the frame, the belt conveying device is attached to the frame in a third direction, and the first direction, second direction and third direction are respectively vertical and are parallel to each other, wherein the belt conveying device is disposed to be detached from the adjuster and frame vertically in the third direction, wherein the adjuster attached to the frame includes a plate-shaped holder attached to the frame and configured to hold the adjuster, a screw penetrating the holder, and a nut, the adjuster is provided above the support and the frame, and the adjuster presses down the support with the screw, and the screw is screwed down to the support to adjust a height of the support, wherein the adjuster further includes a force applier configured to apply a force to the second roller, and the force applier is provided below the support and contacts a bottom surface of the support to press up the support with a plate bias thereof, and wherein the adjuster and the force applier sandwich the support and press and hold the support vertically.