Sheet feed mechanism and method of controlling the same in light beam scanning apparatus
US4831461A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 1988 |
| Grant date | May 16, 1989 |
| Priority date | — |
| Expiry date | Apr 27, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/121
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A sheet feed mechanism in a light scanning apparatus includes two pairs of rollers for gripping and feeding a sheet-like medium such as a stimulable phosphor sheet or a photographic film in a subscanning direction. The two pairs of rollers are spaced a distance smaller than the length of the sheet-like medium in the subscanning direction. While the sheet-like medium is being fed by the sheet feed mechanism in the subscanning direction, the sheet-like medium is scanned by a light beam deflected in a main scanning direction substantially normal to the subscanning direction, for thereby two-dimensionally scanning the sheet-like medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.