| 摘要 |
The disclosed data reading apparatus carries an inserted sheet continuously inward and around a drum where data on the sheet is sensed optically and out of the apparatus reversely, close to the point of insertion. Sheets of different widths are aligned initially, and are held against the drum by tensioned belts. The drum "floats", being movable toward and away from the data reader to accommodate abnormal sheet thickness, wrinkling, etc. and to limit the sensing gap. Jamming of an inserted sheet is virtually eliminated by the floating drum and other special provisions. The entire apparatus is very compact, due in part to making the drum hollow and mounting the drive motor in the hollow.
|
