Development apparatus
US4679928A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 13, 1985 |
| Grant date | Jul 14, 1987 |
| Priority date | — |
| Expiry date | Jun 13, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/09
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An apparatus in which an electrostatic latent image recorded on a moving photoconductive member is developed. The apparatus includes a developer roller having the exterior surface thereof substantially smooth for transporting developer material into contact with the photoconductive member in the development zone. The developer roller moves at a greater velocity than the photoconductive member. In this way, a portion of the developer material moves at substantially the same velocity as the photoconductive member and another portion of the developer material moves at substantially the same velocity as the developer roller. This induces shearing of the developer material. The developer material moving at a velocity less than the velocity of the developer roller is collected in the region of the entrance to the development zone resulting in an extension of the development zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.