Scanning screen color blurred, first check the scanner's flat glass, if dirty can be used cloth or paper wipe clean, pay attention not to use alcohol to wipe, after the image will be scanned with alcohol rainbow color. Glass is not a problem, you need to check the resolution of the scanner, such as 300dpi scanner scan 1200dpi above the image will be blurred. Because the 300dpi scanner sweeps 1200dpi is equivalent to four times times magnified. Also, check to see if the display settings are more than 16bit in color. If the scan is printed matter, it is normal for the mesh to blur. You can use the scanner itself with the image processing software to process.
Scanner problems are mostly scanning effect, which is also a software failure, different scanners on software failure solutions are different, you can use the relevant software to modify. Fault aspects of the main line problems, set the port, driver problems, as long as the right reasons, the problem can be solved.