How do I fix Canon error code 7700 on a printer or copier?
Answer
Power the Canon off, unplug it from the wall for a full 10 minutes, then plug it directly into a wall outlet and turn it on. If 7700 returns, note any paper jams or ink/print-head messages and contact Canon support or a technician—7700 can indicate a print head, sensor, or firmware fault.
Before you start: stop right away if…
- Unplug before inspecting inside panels; avoid liquid spills near power connections.
- Skip unofficial paid “error reset” downloads or callers asking for remote access.
Follow these steps
Turn the printer off
Press the power button to shut the Canon down normally. Wait until the display goes dark and motors stop.
You should see: The printer is fully powered off.
Unplug from printer and wall
Unplug the power cord from the printer and from the wall outlet (or power strip). If it was on a strip or UPS, plan to test on a direct wall outlet next.
You should see: No power reaches the printer.
Wait 10 minutes
Leave the printer unplugged for a full 10 minutes so residual power clears. Do not skip this wait if a short reboot already failed.
You should see: You have completed a long power drain.
Plug directly into the wall and power on
Plug the cord into a known-good wall outlet and into the printer, then turn it on. Watch whether 7700 reappears during startup or the first print.
You should see: The printer starts without 7700, or the code returns quickly for further diagnosis.
Check for jams and get model-specific help
If 7700 returns, open access doors per the manual and clear any visible jammed paper without forcing parts. Search Canon’s official support for your exact model plus “7700”, or contact Canon/a qualified technician—persistent 7700 can mean print head, sensor, or firmware service.
You should see: You either clear a physical jam or have the model and error ready for official support.
Not sure this is the right page? Check here
0 of 5 checked
Extra tips
What to look for: Error code 7700 on the Canon display, plus any jam, ink, or print-head messages that appeared just before it
Before you change anything: Write down the exact Canon model and the full error text. Remove loose paper only if the panels open safely as in the manual. Avoid third-party “reset” tools from unknown websites. Do not share account passwords with unexpected callers.