IT and Business Insights for SMB Solution Providers

Wi-Fi vulnerability in Canon inkjet printers may expose user information.


Sensitive information on the Wi-Fi connection settings stored in the memories of inkjet printers (home and office/large format) may not be deleted by the usual initialization process.

Affected Products/Versions

Please check the affected inkjet printer models from here.


When your printer may be in the hand of any third party, such as when repairing, lending or disposing the printer, take the following steps from the printer unit:

  1. Reset all settings (Reset settings ‐> Reset all)
  2. Enable the wireless LAN
  3. Reset all settings one more time

For models that do not have the Reset all settings function, take the following steps:

  1. Reset LAN settings
  2. Enable the wireless LAN
  3. Reset LAN settings one more time

Please refer to the operation manual of relevant model for specific Reset all or Reset LAN settings.

Go here for more details

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