
A paper jam can cause this Canon printer error P03 so that your printer stops working. Sometimes the error is not due to a single reason, there are many other reasons for an occurrence like:
- Jammed paper.
- Changes in printing functions.
- Disturbance while you’re performing printing tasks.
Table of Contents
How to resolve the Canon Printer Error P03?
Here we’re discussing the following ways of resolving this error P03:-
Replace the paper tray:

When the setup of the Printer is inappropriate you might face this error. Place the paper tray properly and replace canon cartridge. Now, after re-inserting properly plug the cables and turn on the canon printer.
Restart the Canon Printer :

Unplug the cables and turn off the printer. Replug the cables and turn on the printer. This is what we called restarting the process. To restart canon printer you’ve to follow the steps of restarting.
Clean the Canon Printer :

Turn off the canon printer and open the printer cover. Use cotton or a piece of cloth dipped in warm water. Clean canon printhead, Clean canon ink cartridge and also Clean canon ink absorber properly because dust can make trouble in printing.
Check the faulty parts :
You need to check for the followings:
- Logic board QM2-3078
- Paper feed motor QKI-1502
- Timing sensor unit QM2-2683
- Timing slit disk film QCI-6229
- Platte unit QM2-29223
Related Posts:
Canon Printer Errors 6a80, 6a81, c000, E03, E04, b203, 1403, 6000, 5800, 5b02, 5100, 5200, 306, 853, 7800