A little preparation

Before you start

  • Have at least three A4 or Letter plain sheets and enough ink to print the report. Keep the finished report private: it includes network details and may include the Wireless Direct password.
  1. Turn on the printer and router. Load at least three plain A4 or Letter sheets in the front tray, print-side down and portrait orientation. Fit the guides, register the actual size and Plain paper, and open the output tray, support and extension.
  2. Press Setup. Select Device settings and press OK, then LAN settings and OK.
  3. Select Print LAN details and press OK. Wait for all report pages.
  4. Find section 2-2, Result Codes. Read every code listed there, including an additional code beside C-0.

This is the printer’s current network report, not a universal reset recommendation. Keep its passwords and identifiers out of public screenshots.

Step 2:Use the code’s actual meaning

  • C-0: connected; check the selected network, software/driver and device communication if printing still fails. It does not prove every part of the job is working.
  • C-1: printer Wi-Fi disabled. Enable it under Setup → Device settings → LAN settings → Wi-Fi → Wi-Fi enab./disable.
  • C-3: no printer IP address. C-4: no default gateway. Check DHCP or the valid manual address configuration; these are different missing values.
  • C-5: cannot join the specified network. Check the intended 2.4 GHz network, case-sensitive password and signal, rather than assuming only the password can cause it.
  • C-7: possible signal problem. Compare report signal strength after improving placement.
  • C-8: too many Wireless Direct clients; its limit is five. Disconnect an unused direct client.
  • C-9: interference/noise; improve separation from interference sources and compare link quality.
  • C-10: router has not assigned an IP address; check credentials, setup and DHCP. C-11: the network name is still unset/default; enter the intended network details.

Use Canon’s linked full code reference for the relevant condition. A router restart is not a replacement for distinguishing a missing gateway, interference and an unset network name.

Step 3:Make one relevant change, then check again

  • Confirm the phone/computer can use the intended network and that the report’s Infrastructure SSID matches it. A guest or isolated network can prevent device communication even when internet access works.
  • For C-0 on Windows, confirm the correct MP Drivers are installed and that security software allows the Canon application on the intended local network. Use that software’s documented permission controls; do not leave security protection disabled.
  • For a signal or interference code, improve printer/router placement, print the report again and compare strength or quality.
  • For missing address/gateway information, use your router’s documentation or network administrator. Do not invent a static IP or gateway from the video.
  • If the router must be restarted, it temporarily interrupts everyone using it. After it is ready, recheck the printer and report before making another change.

Step 4:Reconnect without making reset the default

When the intended router or password changed, use one method in the related Wi-Fi guide. Manual connect requires your own router name/password; Router overlap requires identifying the actual router, not choosing the first MAC address.

After the relevant correction, print a fresh report, then send a short known document to the intended printer and inspect the completed page. A changed report or a Connected message alone does not confirm the print job.

A little extra help

Questions & troubleshooting

Does C-4 mean the same thing as C-3?

No. C-3 means no IP address; C-4 means no default gateway. Check the appropriate DHCP/manual addressing information.

Does C-5 prove my password is wrong?

No. A wrong password is one check, alongside the intended 2.4 GHz network, signal and other network conditions.

Are C-9, C-10 and C-11 all IP failures?

No. They concern interference, no router-assigned IP, and an unset/default network name respectively.

Should I reset after every failed print?

No. Read the actual error and report first. A LAN reset clears all network information and requires setup again.

References