Method of non-electrostatically transferring small electrostatographic toner particles from an element to a receiver
US5308733A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 31, 1992 |
| Grant date | May 3, 1994 |
| Priority date | — |
| Expiry date | Dec 31, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G7/0046
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method is provided for non-electrostatically transferring dry toner particles which comprise a toner binder and have a particle size of 8 micrometers or less from the surface of an element to a receiver. The receiver comprises a substrate having a coating of a semi-crystalline polyester on a surface of the substrate. The semi-crystalline polyester has a glass transition temperature in a range of from approximately 5.degree. C. to 80.degree. C.; a melting temperature in a range of from approximately 40.degree. C. to 200.degree. C.; a weight average molecular weight in a range of from approximately 10,000 to 150,000; a number average molecular weight in a range of from approximately 5,000 to 75,000; a crystallinity of from approximately 5 to 25 percent by weight, based on the total weight of the polyester and a surface energy of from approximately 44 to 52 dynes/cm. The method involves preheating the receiver to a temperature ranging from approximately 70.degree. C. to 95.degree. C. and contacting the toner-bearing element with the receiver to effectuate the transfer of virtually 100% of the toner particles from the element to the receiver and thereafter separating the receiver fro…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.