Paper feed apparatus capable of feeding of common use papers and specifically processed papers
US4801134A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 4, 1987 |
| Grant date | Jan 31, 1989 |
| Priority date | — |
| Expiry date | Mar 4, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2401/10
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The paper feeding device of the present invention comprises a paper holder for holding a stack of large number of paper sheets; a first roller for sheetwise feeding out paper sheets from the stack in or on the holder; a regular rotation roller for further feeding each of paper sheets and rotatably mounted at a position downstream from the first roller when looking in the paper feeding direction; and a paging roller mounted in opposition to the regular rotation roller. The paging roller is driven always in such a rotational direction for drawback of sheet or sheets in the reverse direction relative to the regular and forward paper feed direction when one or more common class paper sheet or sheets or a plurality of special class paper sheet of a different quality then common class paper sheet is/are fed between the regular rotation roller and the paging roller. In addition the paging roller is rotated as a follower roller following the fed sheet under the action of the regular rotation roller when only one special class paper is introduced between the both rollers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.