Edge effect compensation in high frequency vibratory energy producing devices for electrophotographic imaging
US5025291A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 2, 1990 |
| Grant date | Jun 18, 1991 |
| Priority date | — |
| Expiry date | Jul 2, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2221/0021
- 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 roll-off in response that occurs at the outer segments of the array of horn segments, the vibration producing elements coupled to the outer horn segments are driven with a higher voltage than those coupled to horn segments in the central portion of the array.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.