Motionless scanner
US5132627A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 1990 |
| Grant date | Jul 21, 1992 |
| Priority date | — |
| Expiry date | Dec 28, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/75
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A process is disclosed for ascertaining electrical discharge properties of an electrophotographic imaging member including the steps of (a) providing at least one electrophotographic imaging member comprising an electrically conductive layer and at least one photoconductive layer, (b) contacting the surface of the electrophotographic imaging member with a substantially transparent electrode and applying an electric potential or an electric current to form an electric field across the photoconductive layer, (c) terminating the applying of the electric potential or the electric current, (d) exposing the photoconductive layer to activating radiation to discharge the electrophotographic imaging member, (e) repeating steps (b), (c) and (d), and (f) measuring the potential across the photoconductive layer during steps (b), (c) and (d) as a function of time by means of an electrostatic meter coupled to the electrode. Also, disclosed is apparatus for ascertaining electrical discharge properties of an electrophotographic imaging member including (a) means to support an electrophotographic imaging member comprising an electrically conductive layer and at least one photoconductive layer, (b) …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.