Just inserted new hp cartridges and on a print trial found horizontal lines, so tried to realign the heads. The printout completed successfully and I continued to the scan. This seemed to be going well but suddenly stopped and brought up a message that the scan has failed and I check that the original had been correctly placed then retry. Checked and found the original perfectly aligned, so tried again with the same result. I tried placing the paper in the opposite sense - same result. SO I GAVE UP. Any suggestions please.