Printer with multiple-sized sheets duplex tray assembly
US5549291A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 1, 1994 |
| Grant date | Aug 27, 1996 |
| Priority date | — |
| Expiry date | Dec 1, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2801/06
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A printing machine having a sheet path for moving sheets, a buffer tray assembly for receiving and holding sheets of various sizes and orientation without skewing such sheets. The buffer tray assembly includes a sheet feeding unit, mounted adjacent to and upstream of a sheet holding unit thereof, relative to sheet movement, for feeding, seriatim and without skewing, sheets of various sizes and orientations from the path into the sheet holding unit. The sheet feeding unit includes a sheet driving roller. The sheet driving roller has a plurality of operative positions that are spaced laterally along the sheet cross-path dimension of the sheet path, and that correspond respectively to the midpoints of cross-path dimensions of the various size sheets being fed into the sheet holding unit for feeding and stacking sheets without sheet skew.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.