We have to scan documents very, very often in the process of studying or working. And it's good if you are on a workstation or in a library there is a stationary scanner or a convenient MFP. But if you are on the road or in the classroom and you have an urgent need to scan the document, then a handheld scanner will help you with this.
Portable document scanners - types
Most portable scanners need to be run over the document to scan it. But there are also more expensive and professional models, which are endowed with automatic paper feeding, two-sided scanning and other additional features.
Depending on the model, the scanner can support black and white or color scanning. Those that support scanning in color can also scan in black and white quality. And also the scanners differ in resolution - it can be 300 dots per inch (low), 600 (high) and 900 (highest). In good models, there are all three options, and you can choose the resolution that suits you.
Also portable wireless scanners for A4 can differ in scanning speed:
- high quality, color scanning - 13 seconds;
- low quality, color scanning - 3 seconds;
- high quality, black and white scanning - 6 sec;
- low quality, black and white scan - 2 sec.
Again, in high-quality scanners there is a choice between all these options, which is convenient if you need to save time and quickly scan a document that even in black and white format carries a maximum of useful information.
Well, and quite convenient device is a portable printer-scanner, which can be connected to a laptop and get a mini-office in your room.