Method and apparatus for using a conformable member in a frictional drive
US6556798B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Feb 16, 2001 |
| Grant date | Apr 29, 2003 |
| Priority date | — |
| Expiry date | Feb 16, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/2045
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method and apparatus for controlling image defects associated with overdrive or underdrive, and variations thereof, in an electrostatographic machine. A speed modifying force is transmitted to a conformable member that deforms in a nip, thereby inducing strains in the surface of the member at the nip which cancel or controllably reduce the strains caused by engagement in the nip. The speed modifying force may be an externally applied drag force or torque, and may be applied using an open loop or a feedback system including an electromagnetic brake, a motor, etc. The speed modifying force may be applied to a conformable member forming the nip through a redundant linkage of the system that employs gears or other suitable mechanisms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.