Development station engageable with toner monitor
US4949399A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 9, 1989 |
| Grant date | Aug 14, 1990 |
| Priority date | — |
| Expiry date | May 9, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0849
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A replaceable development station usable for developing electrostatic images in apparatus having a toner monitor and a device for slidably receiving the development station includes a chamber containing a supply of a development mixture of toner and carrier particles. A recess is defined in one wall of the chamber for receiving the toner monitor, the recess being defined by a thinned region of the wall such that the toner monitor is separated from the developer mixture by a wall region substantially thinner than the general wall thickness. A device is provided for camming the development station tightly against the toner monitor and clamping it there such that the resilient force needed to maintain contact is minimized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.