Countermeasures for Each Message3JX3-0AHIf you cannot send a fax or the memory is full, or you encounter operation problems, a message appears on thedisplay. Find out more information about messages in the following list.A counterfeit or non-Canon cartridge may be in use. The amount in thecartridge cannot be displayed correctly.The toner cartridge used may not be a genuine Canon product.● Only genuine Canon toner cartridges should be used as replacement toner cartridges.Consumables(P. 583)An error occurred during certificate verification.The certificate has expired, or contains incorrect information.● Install the correct CA certificate.Registering the Key and Certificate for Network Communication(P. 385)● Check the certificate for validity period and domain name in the DNS settings.Cannot analyze the authentication server certificate.The authentication server certificate may be invalid, or the certificate may be in a format that theprinter does not support.● Check the authentication server certificate.Configuring IEEE 802.1X Authentication Settings(P. 394)Cannot change the destination type of destinations registered to a group.A selected destination could not be edited because it was registered to Group Dial.● To change the type of destination that is registered to Group Dial, first delete the registered destinationfrom Group Dial. Next, change the destination type, and then register the destination to Group Dial again.Cannot find the access point.When automatic setting with WPS was attempted, a wireless router could not be detected within aspecific period of time.● Connect again paying attention to the time limit.Setting Up Connection Using WPS Push Button Mode(P. 19)Setting Up Connection Using WPS PIN Code Mode(P. 21)Troubleshooting615