A beam passage position control apparatus for controlling a beam passage position, and an image forming apparatus using the same

摘要

A beam passing position controlling apparatus comprises a light source (9) for emitting a beam, a mechanism (35, 36, 37) for reflecting the beam toward an image carrier surface to scan the image carrier surface, a sensor (38) for detecting a position where the beam passes on the image carrier surface, a circuit (40) for calculating a correction amount from the position detected, a mechanism (33a to 33d) for correcting the passing position of the beam on the basis of the correction amount, and a circuit (51) for controlling respective operations of the apparatus. IMAGE