Photosensitive drum body-mounting mechanism including a drive coupling member with a coupling protrusion adapted to bite into the inner surface of the mechanism's photosensitive drum
US5210574A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 28, 1992 |
| Grant date | May 11, 1993 |
| Priority date | — |
| Expiry date | Feb 28, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0131
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image-forming machine includes a photosensitive drum on which a toner image is to be formed on the peripheral surface thereof, a transfer drum onto which is removably fitted an image-forming sheet member onto which said toner image will be transferred, and a cleaning device that removes the toner remaining on the peripheral surface of the photosensitive drum after the transfer of image has been finished. The image-forming area on the peripheral surface of the photosensitive drum is defined inside the portions that correspond to both side edges of the transfer sheet member of the transfer drum. A cleaning blade in the cleaning device is present continuously over the image-forming area but does not extend up to portions that correspond to both side edges of the transfer sheet. The photosensitive drum includes a pair of flange members and a photosensitive drum body mounted to the flange members. A drive coupling member made of a resilient metal is secured to one of the flange members, and has a coupling protrusion that bites into the inner surface of the photosensitive drum body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.