| 摘要 |
<p>A raster scanner and method for operating a raster scanner in which there is provided a calibration strip (900) for scanning by the scanner arrays (40, 41). The calibrating signals are compared to a reference by a comparator (308) to produce a corrective signal which is stored in memory (706). Multiple processing modes are provided with the corrective signals used in all modes to adjust the video signal output level. A separate processing channel is provided for each array with a switch (350) to switch the channels into a single output. The scan carriage (32) acceleration/deacceleration is controlled through a frequency generator (790) programmed in response to detected movement of the scan carriage.</p> |
