Low mass heat and pressure fuser
US4565439A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 31, 1984 |
| Grant date | Jan 21, 1986 |
| Priority date | — |
| Expiry date | Oct 31, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/2038
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Heat and pressure fusing apparatus for fixing toner images. The fusing apparatus is characterized by the separation of the heat and pressure functions such that the heat and pressure are effected at different locations on a thin flexible belt forming the toner contacting surface. A pressure roll cooperates with a non-rotating mandrel to form a nip through which the belt and copy substrate pass simultaneously. The belt is heated such that by the time it passes through the nip its temperature together with the applied pressure is sufficient for fusing the toner images passing therethrough. The non-rotating mandrel is adapted to having its axis skewed relative to the axis of the pressure roll. A pair of edge sensors are provided for activating as mandrel skewing mechanism. Skewing of the mandrel by such mechanism effects proper belt tracking.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.