Electrostatic latent image developer
US5800959A · kind A · utility
14Cited by
4References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 17, 1996 |
| Grant date | Sep 1, 1998 |
| Priority date | — |
| Expiry date | Jun 17, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/104
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electrostatic latent image developer is produced by adding 1 part by weight or more of an agent improving transfer efficiency, the agent having an average particle size of 0.1 to 3 .mu.m, together with 0.3 to 5 parts by weight of a hydrophobic silica fine powder of a BET specific surface area of 50 to 300 m.sub.2 /g to 100 parts by weight of a toner. The electrostatic latent image developer of the invention improves the transfer efficiency from a photosensitive material onto a recording medium while the flowability of the toner can be retained, whereby any cleaning mechanism in a developer system can be omitted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.