Method of straightening skew in cut sheet and apparatus therefor
US5417415A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 25, 1994 |
| Grant date | May 23, 1995 |
| Priority date | — |
| Expiry date | Feb 25, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S271/902
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A method of straightening a skew in a cut sheet according to the present invention including the steps of feeding the cut sheet toward a sheet forward roller which is rotating forwardly in a sheet forward direction by a sheet feed roller, rotating the sheet forward roller backwardly immediately after a front end of the cut sheet is nipped by the sheet forward roller, adjusting a position of the front end of the cut sheet in a direction orthogonal to the sheet forward direction by a difference between widthwise sheet nipping amounts on right and left ends of the cut sheet, and feeding the cut sheet by rotating the sheet forward roller forwardly again. An apparatus for carrying out the above-mentioned steps is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.