Developer apparatus with removable developer waste sump
US4850303A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 1988 |
| Grant date | Jul 25, 1989 |
| Priority date | — |
| Expiry date | Mar 10, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S222/01
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A developer apparatus for electrostatographic printing machine includes a developer assembly having a developer housing containing a developer sump, a developer exit port at the top portion of the sump to purge developer material and a removable developer waste sump for cooperative association with the developer exit port which includes a developer storage chamber, an opening through which developer may enter the chamber which is in developer receiving engagement with the developer exit port on the housing. The developer waste sump has at least one exhaust port above and in communication with the storage chamber to permit air which has any entrained toner removed therefrom to escape from the waste sump and including a pin on the bottom of the waste sump which is releasably secured to a fastening device on the housing. In a preferred embodiment, the developer apparatus also includes a removable developer supply container which is tethered to the developer waste sump by a flexible tether member to enable removal and replacement of the supply container and the developer waste sump at the same time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.