Defining member for defining thickness of one-component developer and developing device equipped with it
US5353104A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 17, 1993 |
| Grant date | Oct 4, 1994 |
| Priority date | — |
| Expiry date | Feb 17, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/09
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An elastic blade which is maintained in contact with the developing sleeve for defining the thickness of one-component developer to be transported by the developing sleeve to a developing area, is composed of an elastic base member, and a surface layer coated thereon and giving friction on the one-component developer, and the surface layer contains a substance chargeable frictionally to a polarity opposite to the triboelectric polarity of the one-component developer and another substance chargeable frictionally to a polarity the same as the triboelectric polarity of the one-component developer, and is charged frictionally, in total, to a polarity opposite to the polarity of the one-component developer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.