Toner cartridge having a spring for mechanically biasing a developer unit relative to a photoconductor unit and forming an electrical path to an imaging component
US10691062B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2019 |
| Grant date | Jun 23, 2020 |
| Priority date | — |
| Expiry date | Mar 7, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G21/1867
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A replaceable unit for use in an electrophotographic image forming device according to one example embodiment includes a photoconductor unit having a rotatable photoconductive drum and a developer unit having a rotatable developer roll that is positioned to supply toner to the photoconductive drum. An electrical contact is positioned to contact a corresponding electrical contact in the image forming device when the replaceable unit is installed in the image forming device. A spring mechanically biases the developer unit relative to the photoconductor unit applying a bias force on the developer roll toward the photoconductive drum. The spring is electrically conductive and forms a portion of an electrical path from the electrical contact of the replaceable unit to an imaging component of the replaceable unit for carrying voltage from the electrical contact of the replaceable unit to the imaging component of the replaceable unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.