Electrophotographic apparatus including a screen member for decreasing side edge electrostatic charge
US4320956A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 1980 |
| Grant date | Mar 23, 1982 |
| Priority date | — |
| Expiry date | Mar 10, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0275
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electrophotographic apparatus comprising a corona charger, a photosensitive and electrostatic-charge retentive drum including an electrically conductive substrate and a photosensitive layer having a narrower width than that of a record paper, and a screening member inserted between the corona charger and a peripheral part of the photosensitive and electrostatic-charge-retentive member for gradually decreasing a quantity of electrostatic charge charged at side edge portions of the photosensitive layer in a direction toward the side edges of the photosensitive layer, whereby black line and stripe can be prevented from appearing along the side edges of the record paper.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.