HP Laserjet Pro m521dn Scanner Error
You can overcome scanning issues with the laserjet pro m521dn printer by updating the printer firmware. If this doesn’t work, carry forward the instructions given below. The scanner lid needs to be opened. Now check if the printer scanner setup platen is damaged. Open the ADF assembly and take out any jammed paper if present. Get the latest version of the HP Print and Scan Doctor tool installed on your computer. Run the Diagnostics option and check if the scanning issue persists. Remove the USB cable from the printer and reattach it. Go to the Control panel option of your computer and choose Programs -> Programs and Features. Select Uninstall the HP Print software opens. Re-install the software to check if the HP Laserjet Pro m521dn troubleshooting issue persists. If so, call our techies.