Printers & Scanners

In data processing, it is often necessary to digitize physically present analog data. For this purpose, scanners are used. Light-sensitive sensors scan the surface and convert it into an overall image using an optomechanical process. Printers, on the other hand, take the opposite route. Here, digitally available images, texts, diagrams, or similar content are analogized, that is, transferred to a physical medium.

Printer Technologies and Scanner Variants

Printers are categorized based on different technologies. A very common type in the consumer sector is the inkjet printer, classified as a matrix printer, which applies ink droplets to the medium being printed in both color and black and white. Laser printers are also frequently used, especially in businesses, while dot matrix printers are only used in specific scenarios. The classic flatbed scanner is found in households, while specialized 3D scanners, large-format scanners, or scanners for medical technology are used in their respective fields.

Printing media can have different surfaces. For example, printers work on paper, cardboard, signs, films, labels, fabrics, or textiles. Printers and scanners for personal use are usually connected via Universal Serial Bus (USB); previously, the parallel port was often used for this purpose.

Printers and scanners can also be combined into a single device. These so-called multifunction devices can copy, scan, fax, and print documents quickly and easily. Such models are often integrated into company networks, allowing all users to access them.

From a cost perspective, both laser and inkjet printers are recommended. They are inexpensive to purchase and, with affordable cartridges or toners, can produce many high-quality prints. Scanners with lower resolutions are also budget-friendly.