At first glance, this scanner is appealing. Rather flat for HP. Powered via USB cable (no need to add a transformer that will heat more in the strip. Easy installation (with CD rom). The first test to 600dpi scan is done quickly and rather quietly. Well ... The problem then comes: on the scan result (PNG file), I notice with horror lines (in the direction of scan) or the picture is distorted (unclear). I zoom: it's ugly. I do a second test (the same document but turn around to make sure that the source is not the source). Result with the same problem. After detailed analysis, I find that these poorly scanned lines are repeated approximately every 345 pixels. HP did not make me used to this lack of professionalism. This was my 3rd scanner of the brand. This will be my last, unfortunately. I'll repack it. Very disappointed.
