Magnetic toner applicator
US4461562A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 28, 1982 |
| Grant date | Jul 24, 1984 |
| Priority date | — |
| Expiry date | Oct 28, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0921
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A magnet roll for the toning of electrostatic latent images comprising a central rectangular core mounted to be rotatable about an axis through an angle of about 180.degree. from a first to a second position and carrying face magnetized permanent magnet segments on one rectangular face thereof, and a non-magnetizable cylindrical hollow shell mounted coaxially with the core and adapted to rotate about the axis of the core to allow the face magnetized permanent magnet segments to be moved to a first position to face a member containing an electrostatic latent image on the surface thereof during toning of the electrostatic latent image but rotatable to the second position whereby a magnetic toner carried on the cylindrical hollow shell is removed from the surface of the cylindrical hollow shell in the toning position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.