Light-sensitive drum mounting/demounting structure, light-sensitive unit provided with the same structure and image-forming device with the same unit
US6463235B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 4, 2000 |
| Grant date | Oct 8, 2002 |
| Priority date | — |
| Expiry date | Apr 4, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2221/1606
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A light-sensitive unit used in an image-forming device such as an electrostatic copier or printer, which enables one to easily mount and demount a light-sensitive drum without removing an electrically charging device and with no fear of damaging an edge of a cleaning blade. A second process unit (light-sensitive unit) has a resin-made frame having a cleaning device and includes a light-sensitive drum and an electrically charging device, which are removably mounted therein respectively. The light-sensitive drum is mounted in the frame by first axially inserting its rear-end bearing portion into a rear-side drum-holder and by horizontally turning its front-end bearing portion and placing it in a front-side drum-holder along a guide groove provided in the side thereof. Finally, a stopper is fitted in the front-side drum-holder to prevent the drum from slipping out of the holder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.