Paper refeeding device for an image forming apparatus
US5088713A · kind A · utility
23Cited by
13References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 6, 1990 |
| Grant date | Feb 18, 1992 |
| Priority date | — |
| Expiry date | Apr 6, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/00434
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A paper refeeding device incorporated in an image forming apparatus for temporarily stacking paper sheets each coming out of an image forming section and carrying an image on one side on a refeed tray and, then, refeeding the paper sheets to the image forming section. An air velocity switching mechanism causes an air knife to blow air at a breeze velocity or a zero velocity which does not lift the paper sheets stacked on the refeed tray, until more than a predetermined number of paper sheets have been discharged by discharge rollers and stacked on the refeed tray.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.