Document reading apparatus
US5956152A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 1997 |
| Grant date | Sep 21, 1999 |
| Priority date | — |
| Expiry date | Apr 28, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/121
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A document reading apparatus is provided with a feed roller that feeds a document in its feeding direction while making contact therewith, a rotation driving power source that rotationally drives the feed roller, and a power transmitting mechanism enabled to transmit rotational driving power from the rotation driving power source to the feed roller. Two driving paths, each having a reduction ratio different from the other corresponding to two resolutions, are provided at at least one part of the power transmitting mechanism and a planetary gear for selecting one of the driving paths as a transmitting path of the aforesaid rotational driving power is provided at a branch point of the power transmitting mechanism. Which resolution to select is determined and selection of the driving path is controlled by a selector based on the result of the determination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.