Sheet transport device and automatic document feeder
US6209861A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 8, 1999 |
| Grant date | Apr 3, 2001 |
| Priority date | — |
| Expiry date | Mar 8, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S271/902
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A sheet transport device is provided with a sheet inverting mechanism for retracting a sheet transported along a main transport route into a switchback route to invert the sheet transport direction and returning the sheet into the main transport route to turn the side of the sheet. The sheet transport device has a pair of sheet guides adapted in contact with respective opposite ends of the sheet set on a sheet setting portion to prevent a skew transport of the sheet. The sheet temporarily brought onto the sheet setting portion during a switchback operation from the switchback route is guided between of the sheet guides on the sheet setting portion. During the temporal appearance on the sheet setting portion, the opposite ends of the sheet are aligned by the respective sheet guides. Thereby, securely prevented is an occurrence of a skew transport state of the sheet during the switchback operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.