Scanner is a device that can convert paper documents into digital format, and the scanning quality mainly depends on its scan resolution. So, what is the scan resolution of the scanner?
DPI refers to dots per inch, which is one of the standards to measure image resolution. A higher DPI means a clearer and finer image, but it also means a larger file size. For scanners, scan resolution is the number of pixels scanned per inch.
At present, the common scanners in scan resolution are 600DPI, 1200DPI or 2400DPI. Generally speaking, 600DPI is enough for ordinary documents, words, pictures and other contents, but for photos that need high-definition scanning or detailed graphics, you need to choose a higher scan resolution.
However, it should be noted that high resolution does not necessarily mean better quality. If the resolution of the document itself is not high, then no matter how high the scan resolution is, better quality cannot be obtained. Therefore, when choosing a scanner, it is necessary to choose the appropriate scan resolution according to the actual needs.
There are also some high-end scanners, which can reach 4800DPI or even higher in scan resolution. These scanners can be used in demanding design, publishing, art and other fields, and need to process a large number of high-resolution images.
In a word, the scan resolution of the scanner is an important index, which directly affects the scanning quality. When choosing a scanner, we should fully understand its scan resolution and whether it can meet the actual needs.