Image forming apparatus which forms image by electrophotography
US5089855A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 13, 1991 |
| Grant date | Feb 18, 1992 |
| Priority date | — |
| Expiry date | Jun 13, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/167
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus includes support rollers, a photosensitive belt which is fit around the support rollers to form an endless loop, a unit for forming an electrostatic image on an outer surface of the photosensitive belt, a unit for developing the electrostatic image into a toner image, a transfer roller which is located outside the endless loop of the photosensitive belt and by itself makes contact with the outer surface of the photosensitive belt for a first angular range and bends the photosensitive belt towards the inner side of the endless loop, a mechanism for supplying a recording medium between the photosensitive belt and the transfer roller so that the transfer roller transfers the toner image onto the recording medium, and a receiving roller which is located inside the endless loop of the photosensitive belt. The receiving roller makes contact with the inner surface of the photosensitive belt so that the transfer roller makes contact with the outer surface of the photosensitive belt for a second angular range which is greater than the first angular range through cooperation of the transfer roller and the receiving roller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.