Paper feeder and printer
US5884909A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 25, 1997 |
| Grant date | Mar 23, 1999 |
| Priority date | — |
| Expiry date | Feb 25, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H5/06
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A paper feeder feeds a sheet of paper while interposing the sheet of paper between a pressure roller and a feed roller. The pressure roller is rotatably supported at its both ends by a pair of arms which are independently swingable about a fixed shaft. A plurality sets of such pressure rollers and arms are disposed along an axial direction of the feed roller. The respective arms independently make swinging movement, and the pressure rollers press the sheet of paper while making inclination respectively even when the feed roller and the sheet of paper have irregularities. Thus, the frictional force is generated over the entire sheet of paper, and the sheet of paper is fed without any inclination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.