| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a process cartridge suppressing the fluctuation in the rotating speed of a built-in photoreceptor drum. <P>SOLUTION: The process cartridge is integrally formed with the photoreceptor drum 3, an electrostatic charging module 4 for executing a series of steps of an electrophotographic processes by using the photoreceptor drum 3, a developing module 5, and a cleaning module 6, and is freely attachable and detachable to and from an image forming apparatus main part. A rotor 12 of a motor for driving the photoreceptor drum 3 and a permanent magnet type rotor 10 integrated with a rotor magnet 10 and a rotating speed detecting mark 13 for detecting the speed of the photoreceptor drum 3 are installed at an end surface of the photoreceptor drum 3 to rotationally drive the photoreceptor drum 3. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
