What is a Document Scanner
A rapid development of digital information, electronic documents, digital signatures, and digitized document flow do not free us from the need to scan paper documents. Purchasing a document scanner, you will be able to create your personal digital document library, work with photo materials, edit data. A good office document scanner will be of invaluable help in transferring images and text from paper to a computer media. If it weren't for document imaging scanners, you would need to manually type the text, make a photo of an image, save it to a USB or an HDD drive, combine them, and only then you would get the result. A lot of time spent, a lot of actions and all of them are unnecessary with a document scanner. In our review, we will tell you about sheetfed document scanners. These scanners digitize separate paper sheets using a system that drags the paper through the immovable scanning head. They look similar to your average printers and can process quite a few documents. The main scope of application for the document imaging scanners is in the office, where digitizing papers is an important part of the everyday processes.
And if you wish to digitize books or magazines, we will be happy to introduce flatbed scanners to you.
What Features to Compare
Modern market offers several types of document scanners for home and office. And before you make your final decision, think about where you'll be using the device, evaluate the offered scanner's Type and Performance. We have selected to our list both desktop and portable sheetfed scanners. Desktop document imaging scanners are perfect for home and office as they provide somehow a wider variety of features. At the same time, if you are constantly on the go, meeting your clients outside your office, or if you often have business trips, then a portable document scanner will be a much more valuable purchase. You can shove it into your case and travel everywhere. When we say "Performance", the first thing we mean by it is a tray capacity for auto feed. Most of the office document scanners usually have a tray for 30–75 sheets. The scanning speed under such conditions generally varies from 20 pages per minute for a one-sided scan. And if we are talking about two-sided scanning, it can amount to 50 images per minute, more or less. This way you nearly halve the scanning time. The scanning modes can also affect the time needed for completion of your task: the speed may be lower when scanning color images, although up-to-date document imaging scanners provide roughly the same speed for both black-and-white and color modes. Portable scanners lack auto feed trays, so the scanning speed will directly depend on you and the speed you add the sheets with. An average speed for handheld document scanners to scan an A4 paper sheet is 7–8 seconds. On knowing a document scanner format, you will also know the maximum sheet size to scan in one go. Basically, for home and office use, it is enough to have an A4-sized document imaging scanner, as it will scan smaller images like ID cards and postcards.
The Scanning Quality is essential not only for image digitizing but also for obtaining highly detailed text documents. Look at the optical resolution and once again think of what you are going to scan with this office document scanner. For example, text documents require a resolution of approximately 200–300 dpi and even the resolution of 100 dpi is enough to display the image on the computer screen. But if you are planning to magnify the scanned images and print them afterward, we recommend you to purchase a scanner capable of digitizing images at 600 dpi. A higher resolution is necessary for printing photos on paper of large sizes. The parameter called color depth shows the number of colors that a scanner is able to recognize, it is measured in bits. Most computer applications have the color depth of 24 bits. For document scanning, this parameter may be less important, it is mainly targeted for image digitizing.
Document scanners traditionally use either CCD or CIS sensors. The CCDs provide higher image quality thanks to a larger resolution but for the same reason, they are more expensive and need more time to start scanning. We selected for you the document scanners with CIS sensors. They are quicker at starting, cheaper, and more compact. They may be slightly inferior in terms of image quality, but as we are now looking at document scanners, CIS sensors are more than enough. Nowadays, they can provide good images too.
Any scanner is delivered with a powerful Software and has a range of Functional Features to help you create a perfect solution for document management and to improve the working process. The most popular document scanner drivers are TWAIN, WIA, and ISIS, and any scanner supporting application will be able to use the device that has these drivers. In addition to drivers, the office document scanners also come with the software for enhancing your work experience; for example, ABBYY Fine Reader, Document Capture, and others. Such features as, for example, double feed, color, and size detection, skipping empty sheets, scanning ID and plastic cards, scanning to a Cloud will greatly simplify and optimize your work. With a good document imaging scanner, you will find an absolutely perfect solution to manage your documentation.