Image heating apparatus and heater for heating image
US6336009B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 1999 |
| Grant date | Jan 1, 2002 |
| Priority date | — |
| Expiry date | Nov 30, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/2042
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention relates to an image heating apparatus in which a heater being controlled by an output from a temperature detecting element to obtain a predetermined temperature and an image on a recording material being heated by heat from the heater via a film, the heater having a first heating member disposed along a longitudinal direction of a base material and heated by energizing and a second heating member shorter than the first heating member, the first heating member being disposed on an upstream side of the second heating member with respect to a moving direction of the recording material, and when a first size recording material is heated, the first heating member being energized and the second heating member being not energized, when a second size recording material smaller than the first size recording material is heated, the first heating member and the second heating member being energized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.