Mono-component developing method
US6063535A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 13, 1999 |
| Grant date | May 16, 2000 |
| Priority date | — |
| Expiry date | Apr 13, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/104
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A mono-component developing method, comprising the steps of: PA1 supplying a mono-component developing agent containing a toner onto a developer-supporting member that is aligned face to face with an image-supporting member; PA1 regulating the developing agent on the developer-supporting member by a regulating member installed in contact with the developer-supporting member; and PA1 developing an electrostatic latent image formed on the image-supporting member by the toner, PA1 wherein the toner has a weight-average particle size (d.sub.50) in the range of 4 to 10 .mu.m, an average degree of roundness of not less than 0.950 and a standard deviation of degree of roundness of not more than 0.040, and more preferably the toner has a specific value of a surface shape characteristic D/d.sub.50, and a specific ratio d.sub.50 /Ra of the toner weight-average particle size (d.sub.50) to the surface roughness (Ra) of the developer-supporting member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.