Toner for developing electrostatic image, apparatus unit and image forming method
US6002903A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 14, 1998 |
| Grant date | Dec 14, 1999 |
| Priority date | — |
| Expiry date | Jan 14, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/0821
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An apparatus unit includes a detachably mounted unit having a developing sleeve, a toner and a toner applicator, all of which are enclosed by an outer casing. The toner has a shape factor SF-1 of 100-150 and is formed of 100 parts binder, 1-20 parts of a non-magnetic color and 5-40 parts wax and has a specific storage modulus ratio (a) at 60.degree. C. and 80.degree. C. and (b) at 155.degree. C. and 190.degree. C., of at least 80 for (a) and of 0.95-5 for (b). Toner images are visualized by forming an electrostatic image, developing the electrostatic image with the toner, transferring the toner image to a transfer material and fixing the toner image by heat and pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.