For many who want to install a large format scanner, a used one will do as satisfactorily as a brand new one and at a much lower cost. Consider an engineering firm that does all its design in CAD. It might still want to convert some of the older drawings, or those obtained from other sources, to digital form. A used scanner obtained from an authorized dealer with a warranty and maintenance contract would fulfill this need much more economically than a new scanner, since the application does not require the latest models. But an art museum, library or a reprographic center may opt for a new machine with the best resolution and image quality.

When going for a pre-owned scanner, care must be taken to ensure that the machine is compatible with computers and operating systems that are used today. For example, some of the old Contex DOS-based scanners use a proprietary interface card that is no longer available. Some of the old models will need frequent repairs, and the parts for it will no longer be available. So it is always good to opt for scanners with a maintenance contract also included in the buying price. If the scanner is for temporary use, then the re-sale value should also be considered when making a choice.

The major attraction in buying a used scanner is the lower cost involved; but this should not be at the expense of quality. Buying from reliable vendors who are authorized by the manufacturers themselves ensures quality. Contex, Vidar, Graphtec and ACTion Imaging are some manufacturers who facilitate the re-sale of their used scanners. Re-sale involves repairing the old scanner and making required modifications to suit the present need. Standard accessories are also made available. When buying used scanners, it is always advisable to buy it from a dealer near you, since that will make the repair and maintenance easy, whenever necessary.