Pressing force adjustable roller unit, transport system of sheet member in image processing apparatus therewith and supply system of sheet member in image processing apparatus
US6672579B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 6, 2001 |
| Grant date | Jan 6, 2004 |
| Priority date | — |
| Expiry date | Mar 27, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2511/224
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
There are disclosed a pressing force adjustable roller unit, a sheet member or transport system in an image processing apparatus provided with the roller unit, and a sheet member supply system in which multi-transport can securely be prevented. In a holder to which a roller is attached via a holding shaft to move the roller in a load direction from a peripheral surface, a torsion spring is connected in a direction in which the holding shaft is pressed downward, a windup degree of a winding portion of the torsion spring is adjusted by engagement of an engaging arm projecting from the winding portion with a first or second stopper disposed on a holder side, and a roller pressing force can therefore be adjusted. There are also provided a hopper for piling sheets, a supply roller for picking up and feeding out the sheet, and a multi-transport preventing roller pair of a separation roller and a retard roller so that the hopper can vertically move with respect to the supply roller. When the sheet multi-transport is detected by a multi-transport detection sensor, disposed on an immediate downstream side of the separation roller and retard roller, for detecting the sheet multi-transport, t…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.