Color image output apparatus for recording a color image having independently movable color image forming units

摘要

A color image output apparatus having a plurality of single color image forming units for different colors arrayed in-line. Each single color image forming unit includes a toner box, a photosensitive drum and a transfer roller, and provides a position adjusting unit for moving its image transfer portion in a direction toward and away from or normal to a running direction of an intermediate image transfer belt. Each position adjusting unit includes a motor fixed to the toner box, a thread fixed to an output shaft of the motor, an arm fixed to a main frame and engageable with the thread. Each rotation of each motor provides independent movement of each toner box of each single color image forming unit. This movement provides inclination of the intermediate image transfer belt between neighboring image transfer portions.