6A80 error is an APP position error caused by the APP motor during the purging operation as the printer starts up. Canon states that one of three components is likely to have failed, the sheet feed unit, purge unit or logic board. All of these will be almost impossible to get as a spare part. The only thing worth trying is an EEPROM reset that can be done using the service manual. Get a copy here: http://www.tradebit.com/filedetail.php/4981053-canon-pixma-mp520-printer-service-manual
Start with printer off
Press and hold resume Button (triangle in the circle)
and click “Power” button. green led should be onWhile holding the Power button, release the Resume
Button.Without releasing the Power Button, click “Resume”
button for two times and release Both Buttons.Click “Resume” for four times then soon click “Power”
button, to confirm the selected action (reset counter absorber).Turn off the printer and turn on again
×
1,451 views
Usually answered in minutes!
×