Image forming unit with high positioning and rotating accuracy and image forming apparatus using the same
US6366748B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 16, 2000 |
| Grant date | Apr 2, 2002 |
| Priority date | — |
| Expiry date | May 16, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2221/1603
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming unit including a photosensitive member on the surface of which an electrostatic latent image is formed, a charger for charging the photosensitive member, a developing roller for developing the electrostatic latent image into a visible image, a box for supporting the photosensitive member, the charger and the developing means. A first flange that is integrally formed into one unit including a first taper hole portion that is a positioning part with respect to the apparatus main body for positioning the photosensitive member at the image forming position of the apparatus main body and a first coupling portion that is a rotation engaging portion for receiving a rotation driving force from the apparatus main body is attached to one end of the photosensitive member. Thereby, it is possible to realize an image forming unit having a simple structure, capable of being reduced in size and weight, and realizing a high quality image, and an image forming apparatus capable of improving the positioning and the rotating accuracy of the photosensitive member at the image forming position by using the image forming unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.