| 摘要 |
PROBLEM TO BE SOLVED: To provide an image forming device which is capable of forming high-accuracy images by eliminating the fluctuation in the relative positions of a writing unit and a photoreceptor drum by their vibrations and holding both in such a manner that the position to be irradiated with a laser beam is always constant. SOLUTION: The writing photoreceptor unit 20 housing and supporting the photoreceptor drum 1 and the writing unit 4 are formed of integral molded goods of resins or membranes of materials, such as aluminum and magnesium, having high rigidity and high heat conductivity. The writing unit 4 is housed and supported in a housing section 20a on an upper part side and the photoreceptor drum 1 is rotatably supported in supporting sections 20b projected and formed in the lower part of the housing section 20a. The fluctuation in the position to be irradiated with the writing beam with respect to the vibrations can be prevented by this integration. The position to be irradiated with the laser beam can be held always constant and therefore the high-accuracy image can be formed. |
