Sheet transfer apparatus and sheet supply apparatus
US6969065B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2002 |
| Grant date | Nov 29, 2005 |
| Priority date | — |
| Expiry date | Aug 24, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2511/22
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A sheet transport apparatus includes the first transport rollers, the second transport rollers arranged at downstream of the first transport rollers to receive a sheet transported from the first transport rollers, a spacing device for setting the first transport rollers to a sheet nipping state or a sheet released state, a sheet detection device for detecting a sheet length in a transport direction, and a comparing device for comparing the sheet length detected by the sheet detection device with a predetermined length. It is controlled such that the spacing device is activated to switch the first transport rollers from a sheet nipping state to a sheet released state after the sheet is transported by a predetermined distance when the sheet length is longer than the predetermined length, and to maintain the first transport rollers in the sheet nipping state when the sheet length is shorter than the predetermined length.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.