Process cartridge having a guide member with a flexible portion
US7113734B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2004 |
| Grant date | Sep 26, 2006 |
| Priority date | — |
| Expiry date | Oct 6, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2221/183
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A step portion is formed on a lower casing of a process cartridge, and a film member composed of flexible resin film is fixed to a step portion such that a front portion can bend. The film member guides a sheet to a photosensitive drum. In this manner, a thin sheet which lacks firmness is adhered on an upstream side of a transfer position in a rotational direction of the photosensitive drum, thus preventing electrical discharges, while a thick sheet which has firmness is bent by the front portion of the film member in a direction in which a leading edge of the sheet is headed, thus guiding the sheet such that operating abnormalities are prevented and an appearance of ghosts is prevented.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.