Image forming apparatus
US5875372A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 14, 1997 |
| Grant date | Feb 23, 1999 |
| Priority date | — |
| Expiry date | Jul 14, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/2083
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus includes a first image carrier on which a toner image forming device forms a toner image; a second image carrier provided opposite to the first image carrier, onto which the toner image on the first image carrier is transferred; first and second transfer devices for transferring the toner image on the first and second image carriers onto one side and the other side of a transfer material, respectively; and a fixing device for fixing the toner images on both sides of the transfer material transferred respectively by the first and second transfer devices. The fixing device includes first and second fixing members provided opposite to one side and the other side of the transfer material, respectively, wherein the transfer material passes between the first and second fixing members, and first and second sensors are provided for detecting temperature of the first and second fixing members respectively. The apparatus further includes a control device for controlling the toner image forming device, the first and second transfer devices, and the fixing device. The control device enables image formation on both sides of the transfer material or on one side of the …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.