Device for thermally fusing an unfused image on an image holding member
US5151719A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 19, 1991 |
| Grant date | Sep 29, 1992 |
| Priority date | — |
| Expiry date | Aug 19, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/325
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An image formed of a colored image forming material mainly composed of thermoplastic resin and carried by a paper sheet is heated and fused by a heating member which is typically belt-like and includes an adhesion preventive layer for preventing adhesion of the image forming material, a conductive layer formed on the adhesion preventive layer, and an electric heating layer for generating heat upon reception of electric energy. A power supply member typically has divisional electrodes arranged in the width direction of the heating member, and supplies the electric energy to the heating member. A pressurizing member is disposed opposite the heating member with the image-carrying sheet interposed therebetween, and provides a pressure acting between the divisional electrodes and the image-carrying sheet. A control circuit controls pulse currents to be supplied to the divisional electrodes through the power supply member in accordance with an image signal having been used for forming the image on the image carrying sheet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.