Image forming apparatus with auxiliary image forming mechanism
US5260760A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 25, 1991 |
| Grant date | Nov 9, 1993 |
| Priority date | — |
| Expiry date | Nov 25, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2217/0025
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention relates to an image forming apparatus comprising a main image forming mechanism for forming a toner image on a recording sheet based on image information and an auxiliary image forming mechanism for forming an auxiliary image on a recording sheet on which the main image is formed. The auxiliary image forming mechanism supplies charged toner to a substrate provided with a plurality of toner passage holes and selectively forms electric potential which allow or does not allow the charged toner to pass through each toner passage hole by a pair of electrodes. A predetermined image is formed with the toner passed through the toner passage holes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.