6C10 eror usually occur in Canon Printer model MP110, MP540, MP630, MP620, MP640, IP3600. To fix this issue all you have to follow the steps below :
The very first ting you have to see that the printer head is at the center or not if it is not at the center then move it to the center. Now disconnect the printer and check on the right: is the purge unit ok ? No peace of paper ?
Do a reset of the printer:
Step 1: Power on your printer
Step 2: Hold down the “Resume” button (triangle in a circle) for 15 to 20 seconds.
Step 1: Power off the printer and open the door
Step 2: Now power on your printer.
Step 3: You have to open the door to check whether the printer head is at the center or not, when the cartridge is in the center, close the door.