Fusers, printing apparatuses, and methods of fusing toner on media
US7697860B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 6, 2008 |
| Grant date | Apr 13, 2010 |
| Priority date | — |
| Expiry date | Oct 29, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/2039
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Fusers for fusing toner on media, printing apparatuses, and methods of fusing toner on media in printing apparatuses are disclosed. An exemplary embodiment of the fusers comprises a fuser roll comprising a fusing imaging surface; at least one heating element for heating the fuser roll; a pressure roll including an outer surface, the outer surface and the fusing imaging surface defining a nip; a temperature sensor for sensing a temperature on the fusing imaging surface; a time delay calculator connected to the temperature sensor; a feedback controller connected to the temperature sensor and the heating element, the feedback controller receives a signal from the temperature sensor indicating the temperature on the fusing imaging surface and controls the heating element based on the temperature; and an open-loop controller connected to the heating element and the time delay calculator. The open-loop controller receives a time delay signal from the time delay calculator and bypasses the feedback controller to control the heating element to increase the temperature of the fusing imaging surface starting at about a time, t−Δt (where Δt is a time delay), which is before a medium arrives a…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.