Paper sheet feeder
US5383654A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 1, 1993 |
| Grant date | Jan 24, 1995 |
| Priority date | — |
| Expiry date | Mar 1, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/00556
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus is provided with a paper sheet feeder for selective feeding from a group of paper sheets in either a first or second cassette. In the paper sheet feeder, first and second registration rollers are provided in front of the first and second cassettes respectively, and a common registration roller is provided in front of a photosensitive drum. When the first group of paper sheets is selected, a first paper sheet is supplied to the first registration roller from the first cassette so that the paper sheet is registered by the first registration roller. The registered paper sheet is supplied to the common registration roller so that the paper sheet is also registered by the common registration roller. When the second group of paper sheets is selected, the second paper sheet is supplied to the second registration roller from the second cassette so that the paper sheet is registered by the second registration roller. The registered paper sheet is supplied to the common registration roller through the first registration roller so that the paper sheet is also registered by the common registration roller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.