| 摘要 |
PROBLEM TO BE SOLVED: To make the amount of adjustment of laser beam scanning position a for each scanning unit uniform regardless of the positions of scanning units, while achieving a reduction in the size of an image forming apparatus.SOLUTION: An exposure device comprises: a plurality of scanning units provided in parallel with the direction of sub-scanning and configured to scan and exposure a photoreceptor drum; a plurality of frame members arranged so as to surround the plurality of scanning units; a mounting part which includes a quadrangular link mechanism formed by rotatably movable connection of the ends of the frame members, and on which the plurality of scanning units are mounted; and a rotation support point which is provided at an end of each scanning unit in the main scanning direction and which is used for mounting the scanning units on the frame members such that the scanning units are rotatable, and is configured to rotate the scanning unit in accordance with a change in the shape of the mounting part by the link mechanism. |
