Positioning means for a pivotally mounted electrostatic image forming means
US5089846A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 11, 1991 |
| Grant date | Feb 18, 1992 |
| Priority date | — |
| Expiry date | Feb 11, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2221/183
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Electrostatic image forming device according to the present invention is contacted with a surface of a photosensitive drum by way of a positioning member so that it may follow the photosensitive drum in any eccentric condition, and consequently, the position thereof relative to the photosensitive drum is maintained constant, and accordingly, a recorded picture of a high quality is obtained. Further, since the relative positions of the electrostatic image forming device and the photosensitive drum are varied by adjustment of the positioning measure in response to opening and closing operation of an electrophotographic apparatus body, electrostatic image forming device having a short focal length can be used, and the overall size of the electrophotographic apparatus body can be reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.