System for controlling the motion of fused or unfused copy sheets entering a fuser nip
US5600424A · kind A · utility
9Cited by
11References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 17, 1993 |
| Grant date | Feb 4, 1997 |
| Priority date | — |
| Expiry date | Dec 17, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/2083
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A fuser roll nip sheet sensing scheme detects the torque spike of a fuser roll motor when paper is entering the nip region and uses that spike to signal a speed change to the motor to thereby control the motion of the paper. The nip sheet sensing scheme is used for paper position/timing and for single pass duplex fusing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.