Non-contacting hybrid jumping developer dirt emission baffle seal
US5983053A · kind A · utility
8Cited by
1References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 10, 1998 |
| Grant date | Nov 9, 1999 |
| Priority date | — |
| Expiry date | Apr 10, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0817
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A noncontact seal for a donor roll in an electrophotographic printing machine. The seal is fixed in the developer housing and envelopes each end of the donor roll but does not contact the donor roll. The small space does not allow a positive airflow sufficient to cause toner particles to be emited from the developer housing so as to contaminate the other portions of the printing machine. The seal is made of a low friction material such as DELRIN.RTM. so that toner particles do not stick to the seal and cause a buildup that would be detrimental to the photoreceptive member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.