Electrostatic latent image developing apparatus
US4755847A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 22, 1986 |
| Grant date | Jul 5, 1988 |
| Priority date | — |
| Expiry date | Aug 22, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0636
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electrostatic latent image developing apparatus supplies toner to a latent image carrier such as a drum-shaped photosensitive body to visualize a latent image formed thereon. The toner is supplied by a rotating drum-shaped toner carrier having a portion confronting the photosensitive body adjacent thereto and another portion held in contact with toner contained in a toner container. The toner is electrostatically attracted to the toner carrier and transferred therefrom to the photosensitive body. The toner on the toner carrier is regulated into a thin toner layer by a toner layer regulating member that is resiliently held in sliding contact with the toner carrier. To prevent toner deposits from being attached to the toner layer regulating member, the toner layer regulating member is made of a material adapted to wear with the attached toner. In order to provide the toner layer regulating member with an ability to triboelectrically charge toner, whether chargeable to a polarity (-) or (+), or to control the amount of electricity on toner chargeable to a polarity (-) or (+) and prevent toner deposits from being attached to the toner layer regulating member, another material to con…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.