Image forming apparatus comprising a frame, an intermediate transfer section, and a plurality of built-in-bodies

An image forming apparatus comprising:

• a frame that includes a pair of standing walls spaced apart from each other, and a linking section linking the pair of standing walls with each other;
• an intermediate transfer section that includes a plurality of support rolls extending between the pair of standing walls and being supported by the pair of standing walls, and an intermediate transfer belt held by the plurality of support rolls and circulating;
• and
• a plurality of built-in bodies, at least, into each of which a photoreceptor roll having a shaft with protruding both ends and rotatable around the shaft is incorporated, and which are arranged along the intermediate transfer belt while being supported in a state that the both ends of the shaft penetrate the pair of standing walls, and each of which is fixed to a first standing wall of the pair of standing walls,
• wherein each of the plurality of built-in bodies incorporates a developer device which has a development roll extending between the pair of standing walls along the photoreceptor roll and developing a latent image formed on the photoreceptor roll with a toner,
• wherein the image forming apparatus further includes an urging spring which is arranged between the developer device and the pair of standing walls and urges the developing roll toward a side of the photoreceptor roll.