Image fixing apparatus having a heater, a movable film and electrical insulating member disposed at latent end
US5196675A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 31, 1990 |
| Grant date | Mar 23, 1993 |
| Priority date | — |
| Expiry date | Dec 31, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/2064
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image fixing apparatus includes a movable film movable together and in contact with a recording material supporting a visualized image, the film having a base layer of insulating material and a surface low resistance layer contactable to the visualized image, the surface layer containing low resistance material; a heater extending in a direction crossing with a movement direction of the film, the film being in contact with the base layer of the film, the heater including a base plate, an electric resistance layer producing heat by electric power supply and extending along a longitudinal direction of the film adjacent the film and a protection layer for protecting the electric resistance layer; and an insulating material between the film and the protection layer only at lateral end portions of the film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.