Image forming apparatus having an aperture electrode and low friction toner supplying device
US5539438A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 12, 1994 |
| Grant date | Jul 23, 1996 |
| Priority date | — |
| Expiry date | Jul 12, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2217/0025
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An image forming apparatus uses an electrode member with apertures therein through which toner is passed according to an image to a support medium. A toner carrier member has a low friction layer contacting the surface of an electrode member. The low friction layer is made of molybdenum disulfide or a similar solid lubricant. Friction between the surface of the low friction layer directly contacting the electrode member and toner particles is so small that the attachment force of the toner particles is small. Therefore, by using a small potential the electrode can be controlled for selectively passing toner particles through the apertures. As a result, a low cost driving element can be used for the image forming apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.