Is there a fix for error 6A80 for a Canon mx700

You can try a few things:
RESET the printer:

1. On the operator panel, press and hold the <ON/OFF> button for one second. (The display will go blank.)
   
   Note: It may be necessary to unplug the power cord if pressing the ON/OFF button does not shut off the printer.
   
2. Wait approximately ten seconds and then press the <ON/OFF> button again.
   
3. Wait until the device has completed its cycling process before submitting another job request.

Check for paper jammed in the paper output slot, the Rear Tray, or the Front Tray.
Remove the paper following the procedure below.
(1) Slowly pull the paper out, either from the paper source or from the paper output slot, whichever is easier.


(A) When printing from the Rear Tray
(B) When printing from the Front Tray
If the paper tears and a piece remains inside the machine, open the Scanning Unit (Printer Cover) and remove it.
After removing all paper, close the Scanning Unit (Printer Cover), turn the machine off, and turn it back on.
* Be careful not to touch the components inside the machine.
If you cannot pull the paper out, turn the machine off and turn it back on. The paper will be ejected automatically.
(2) Reload the paper in the machine, and press the OK button on the machine.
If you turned off the machine in step 1, all print jobs in queue are canceled. Reprint if necessary.
Note

When reloading the paper in the machine, confirm that you are using the correct paper and are loading it into the machine correctly.
A5-sized paper are suited to print documents consisting mainly of text. We do not recommend using such paper to print documents with photos or graphics, since the printout may curl and cause paper exit jams.
If you cannot remove the paper or the paper tears inside the machine, or if the paper jam error continues after removing the paper, you should take the printer to a service shop since the printer will have to be disassembled to remove the torn paper.