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Scanners are relatively simple devices, these days often incorporated with a printer in an "all-in-one". In this page we examine how thy work and the hardware or software problems that can occur.

Summary

Unlike a camera, a flat bed document scanner records a single row of pixels at a time using an illumination source and a row of sensors mounted on a bar which is drawn across the document by mechanical means. Problems can arise with the mechanics, the electronics or the software.

Safety

(No particular safety issues?)

External links

• External links (if any) as bullet points.
• If non, delete this section.