Frequency sweeping excitation of high frequency vibratory energy producing devices for electrophotographic imaging
US5005054A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 2, 1990 |
| Grant date | Apr 2, 1991 |
| Priority date | — |
| Expiry date | Jul 2, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/16
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
For the enhancement of toner release from an imaging surface on a flexible belt member in an electrophotographic device a resonator suitable for generating vibratory energy is arranged in line contact with the back side of the belt member, to uniformly apply vibratory energy to the member. The resonator includes a horn divided into a linear array of segments, and an array of vibration producing elements, each coupled to at least one horn segment, and driven with a voltage to produce a high frequency vibratory response. To avoid the problem of variations in response that occurs due to varying resonant frequencies of each horn element, the vibration producing elements are driven across a range of frequencies that includes each resonant frequency required, over a relatively short period of time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.