A Message Appears

If a message appears on the control panel, select the message from the list below, and check how to troubleshoot the problem.
If the problem persists even after trying the troubleshooting methods, contact your dealer or service representative. If the Problem Persists

An error occurred during certificate verification.

An error occurred during verification due to an expired certificate or incorrect information.
Install the Correct Key and Certificate or CA Certificate.
Check the expiration date, certification authority, and other information, and then install the key and certificate or CA certificate. Registering a Key and Certificate or CA Certificate Obtained from an Issuing Authority
Are the Current Date and Time on the Machine Correct?
Check the date and time settings on the machine. If the settings are not correct, set the time zone, and then set the current date and time. Setting the Date and Time

Cannot analyze the authentication server certificate.

The certificate of the authentication server may not be correct, or it may be a format unsupported by the machine.
Check the Certificate of the Authentication Server, and Change the Setting, as Needed.
Setting IEEE 802.1X

Cannot find the access point.

An error occurred, preventing the machine from detecting the wireless LAN router (access point).
Is Connection Type Configured Correctly?
Select the connection type (WPS) according to the method supported by the wireless LAN router. Connecting to a Wireless LAN by Using the Router Button (Push Button Mode)
Did You Connect Within the Fixed Time?
When connecting by pressing a button on the wireless LAN router, set the connection type on the control panel of the machine, and then press the button on the wireless LAN router within one or two minutes. Connecting to a Wireless LAN by Using the Router Button (Push Button Mode)
Are the SSID and Network Key Configured Correctly?
When entering the wireless LAN router information manually, check the SSID and network key of the wireless LAN router, and configure the settings correctly on the machine. Connecting to a Wireless LAN by Setting the Details (Manual Setup Method)
Are the Machine and Wireless LAN Router Located Appropriately?
The machine and wireless LAN router should be installed in a location without walls or other obstructions between the devices and within range of 50 m.
Do not install near a microwave oven, digital cordless telephone, or other device that generates radio waves.
Check the Security Settings of the Wireless LAN Router.
For details, see the manual of the wireless LAN router or contact the manufacturer.

Cannot print. A non-Canon or counterfeit cartridge may be inserted.

Printing cannot be performed due to the use of a toner cartridge whose print quality cannot be guaranteed.
Replace with a New Toner Cartridge.
Replacing the Toner Cartridge
For optimum print quality, using Canon genuine toner cartridges is recommended. List of Consumables

Cannot print RX data.

Received data cannot be printed for some reason.
Do the Cause and Solution Appear on the Control Panel?
If so, follow the instructions on the screen.
Is the Front Cover, Rear Cover, or Feeder Cover Open on the Machine?
Close the covers if they are open.
Is Paper Loaded?
Load paper if not loaded. Loading Paper
Is Paper Jammed?
If so, remove any jammed paper. Paper Jams
Have the Toner Cartridge Reached the End of Their Lifetime?
Check the remaining amount of toner in the toner cartridge, and replace any toner cartridge, as needed.
Checking the Remaining Amount of Consumables
Replacing the Toner Cartridge

Cannot recognize the image.

In Memory Media Print, you selected an image for which a preview cannot be displayed.
Does the Machine Have Sufficient Free Memory?
If the machine does not have sufficient free memory, previews of JPEG and TIFF images cannot be displayed.

Cart. Comm. Error Cannot print. A non-Canon or counterfeit cartridge may be in use. Close: Press OK

Printing cannot be performed due to incorrect installation of the toner cartridge, a damaged toner cartridge, or the use of a toner cartridge whose print quality cannot be guaranteed.
Reinstall the Toner Cartridge or Replace with New Toner Cartridge.
Replacing the Toner Cartridge
For optimum print quality, using Canon genuine toner cartridges is recommended. List of Consumables
If the message still appears after repeatedly reinstalling the toner cartridge, contact your dealer or service representative. If the Problem Persists

End of Cartridge Lifetime

The toner cartridge have reached the end of their lifetime.
It Is Recommended to Replace with New Toner Cartridge.
 Replacing the Toner Cartridge

Cartridge Comm. Error Problems caused by non-Canon cart. not covered by warranty. Close: Press OK

Printing cannot be performed due to incorrect installation of the toner cartridge, a damaged toner cartridge, or the use of a non-Canon toner cartridge, resulting in a communication error.
Reinstall the Toner Cartridge.
Replacing the Toner Cartridge
For optimum print quality, using Canon genuine toner cartridges is recommended. List of Consumables
If the message still appears after repeatedly reinstalling the toner cartridge, contact your dealer or service representative. If the Problem Persists

Change the authentication password.

The password has expired.
Set a new password.

Check the authentication settings.

The authentication method set on the machine does not match that set on the RADIUS server.
Check the Authentication Method Set on the RADIUS Server, and Set This Correctly.
Setting IEEE 802.1X

Could not connect.

An error occurred, preventing the machine from establishing a direct connection.
Wait a Moment, and Try Connecting Again.
If you still cannot establish a connection, restart the machine.
Set the IP Address for Connection to Something Other Than "192.168.22.xx".
The machine must be restarted to apply the settings.
Log in to Remote UI in System Manager Mode [Settings/Registration] [Network Settings] [Direct Connection Settings] [Edit] in [IP Address for Direct Connection], enter the IP address [OK] restart the machine
On the control panel, select [Menu] in the [Home] screen, and then select [Preferences] to configure the settings. [Direct Connection Settings]
Is the Subnet Mask Configured Correctly?
Check the IPv4 subnet mask settings. Change the settings if they have not been configured correctly. For details, contact the network administrator.
Viewing the IP address set to the machine
Setting IPv4 Addresses

Could not connect. Check the encryption key.

The network key (encryption key) of the wireless LAN router (access point) is not configured correctly, preventing connection.
Reset the Network Key.
Check the network key of the wireless LAN router, and configure the settings correctly on the machine. Connecting to a Wireless LAN

Could not connect. Device will restart.

An error occurred, preventing the machine from connecting in Access Point Mode. Alternatively, an error occurred when starting cableless setup mode.
Restart the Machine, and Start Cableless Setup Mode Again.
Administrator privileges are required.
[Home] on the control panel  [Menu]    [Preferences]    [Network]    [Easy Connection via PC]    start the settings on the computer

Could not connect. The maximum number of devices that can connect to the access point has been reached.

The maximum number of devices that can be connected to the wireless LAN router (access point) has been reached, preventing connection.
Reduce the Number of Devices (Clients) Connected to the Wireless LAN Router.
For the maximum number of connections, see the manual of the wireless LAN router or contact the manufacturer.

Could not connect using Easy Connection via PC. The device will restart.

An error occurred, preventing the machine from connecting in Access Point Mode. Alternatively, an error occurred when starting cableless setup mode.
Restart the Machine, and Start Cableless Setup Mode Again.
Administrator privileges are required.
[Home] on the control panel [Menu] [Preferences] [Network] [Easy Connection via PC] [Yes] start the settings on the computer

Could not connect using the wireless LAN.

An error occurred, preventing the machine from connecting to the wireless LAN.
Restart the Machine, and Configure the Wireless LAN Connection Again.
Connecting to a Wireless LAN
Are the Machine and Wireless LAN Router (Access Point) Located Appropriately?
The machine and wireless LAN router should be installed in a location without walls or other obstructions between the devices and within range of 50 m.
Do not install near a microwave oven, digital cordless telephone, or other device that generates radio waves.
Check the Security Settings of the Wireless LAN Router.
For details, see the manual of the wireless LAN router or contact the manufacturer.

Could not connect using the wireless LAN. Turn the main power OFF and ON, then configure the settings again.

An error occurred, preventing the machine from connecting to the wireless LAN.
Restart the Machine, and Configure the Wireless LAN Connection Again.
Connecting to a Wireless LAN
Are the Machine and Wireless LAN Router (Access Point) Located Appropriately?
The machine and wireless LAN router should be installed in a location without walls or other obstructions between the devices and within range of 50 m.
Do not install near a microwave oven, digital cordless telephone, or other device that generates radio waves.
Check the Security Settings of the Wireless LAN Router.
For details, see the manual of the wireless LAN router or contact the manufacturer.

Could not connect using WPS. Wait a moment, then configure the settings again.

An error occurred, preventing the machine from establishing a WPS connection.
Wait a Moment, and Configure the Settings Again.
If you still cannot establish a WPS connection, check whether the wireless LAN router (access point) supports WPS.
If It Supports WPS
Check that the machine and wireless LAN router are located appropriately.
The machine and wireless LAN router should be installed in a location without walls or other obstructions between the devices and within range of 50 m.
Do not install near a microwave oven, digital cordless telephone, or other device that generates radio waves.
If It Does Not Support WPS
Connect using a different connection type. Connecting to a Wireless LAN

Could not detect any connections from wireless devices.

An error occurred, preventing the machine from detecting mobile devices.
Did You Connect Within the Fixed Time?
Connect the mobile device to the machine within five minutes of the SSID and network key being displayed.

Could not perform cleaning.

Cleaning could not be performed due to jammed paper or another problem.
Is Paper Loaded?
Load paper in the paper drawer if not loaded. Loading Paper in the Paper Drawer
Is Paper Jammed?
If so, remove any jammed paper. Paper Jams

Could not perform correction.

Correction could not be performed due to jammed paper or another problem.
Is Paper Jammed?
Remove any jammed paper. Paper Jams
Check the Remaining Amount of Toner in the Toner Cartridge.
A sufficient amount of toner in the toner cartridge is required to perform correction. Check the remaining amount of toner in the toner cartridge, and replace any toner cartridge, as needed.
Checking the Remaining Amount of Consumables
Replacing the Toner Cartridge

Could not perform IEEE 802.1X authentication. Cannot analyze the authentication server certificate.

Check the certificate of the authentication server, and change the setting, as needed.
Check the Certificate of the RADIUS Server, and Change the Setting, as Needed.
Setting IEEE 802.1X

Could not perform IEEE 802.1X authentication. Change the authentication password.

The password has expired.
Set a New Password.
Setting IEEE 802.1X

Could not perform IEEE 802.1X authentication. Check the authentication settings.

The authentication method set on the machine does not match that set on the RADIUS server.
Check the Authentication Method Set on the RADIUS Server, and Set This Correctly.
Setting IEEE 802.1X

Could not perform IEEE 802.1X authentication. Configure the correct authentication information.

The authentication method or authentication information of IEEE 802.1X is not set correctly.
Set the Authentication Method and Authentication Information (Keys and Certificates, Password, CA Certificate) Correctly.
Setting IEEE 802.1X
Managing and Verifying a Key and Certificate

Could not perform IEEE 802.1X authentication. Configure the information required for authentication.

The authentication method or authentication information of IEEE 802.1X is not set correctly.
Set the Authentication Method and Authentication Information (Keys and Certificates, Password, CA Certificate) Correctly.
Setting IEEE 802.1X
Managing and Verifying a Key and Certificate

Could not perform IEEE 802.1X authentication. No reply from the destination.

The network connection may have a problem.
Check the Network Status and Settings.
Check the Ethernet cable and switch status.
Check the network key of the wireless LAN router, and configure the settings correctly on the machine.

Could not perform IEEE 802.1X authentication. The authentication server certificate has expired.

The server certificate sent from the RADIUS server has expired.
Check the Expiry Date of the RADIUS Server.
Setting IEEE 802.1X

Could not perform IEEE 802.1X authentication. The authentication server certificate is incorrect.

A CA certificate that supports the certificate of the authentication server is not registered to the machine.
Check the Certificate Information of the Authentication Server, and Register a Supported CA Certificate.
Setting IEEE 802.1X
Registering a Key and Certificate or CA Certificate Obtained from an Issuing Authority

Could not perform Open System authentication. Check the encryption key settings.

The WEP authentication methods of the machine and wireless LAN router (access point) do not match, or MAC address filtering of the wireless LAN router is set to prevent a connection to the machine, thereby preventing Open System Authentication.
Use the Manual Setup Method to Change the WEP Authentication Method to [Shared Key], and Connect Again.
Connecting to a Wireless LAN by Setting the Details (Manual Setup Method)
In the MAC address filtering setting of the wireless LAN router, allow the connection to the machine.
Check the MAC address of the machine, and configure the wireless LAN router to allow a connection from that MAC address. Viewing the MAC Address and Connection Information of the Wireless LAN
For the setup method, see the manual of the wireless LAN router or contact the manufacturer.

Could not perform Shared Key authentication. Check the encryption key settings.

The network key (encryption key) of the wireless LAN router (access point) is not configured correctly, or the WEP authentication methods of the machine and wireless LAN router do not match, preventing Shared Key Authentication.
Reset the Network Key.
Check the network key of the wireless LAN router, and configure the settings correctly on the machine. Connecting to a Wireless LAN
Match the WEP Authentication Method on the Machine and Wireless LAN Router.
The machine may be set to Shared Key Authentication, and the wireless LAN router may be set to Open System Authentication. Change the WEP setting according to the authentication method you are using.
When Using Open System Authentication
Connect to the wireless LAN using either of the following methods:
Connect with the access point setup method. Connecting to a Wireless LAN by Searching for a Router (Access Point Setup Method)
Using the Manual Setup Method, connect with the WEP authentication method set to [Open System]. Connecting to a Wireless LAN by Setting the Details (Manual Setup Method)
When Using Shared Key Authentication
On the wireless LAN router, change the WEP authentication method to "Shared Key", and connect again. For the setup method, see the manual of the wireless LAN router or contact the manufacturer.

Could not perform Shared Key authentication. Check the encryption key settings.

The network key (encryption key) of the wireless LAN router (access point) is not configured correctly, or the WEP authentication methods of the machine and wireless LAN router do not match, preventing Shared Key Authentication.
Reset the Network Key.
Check the network key of the wireless LAN router, and configure the settings correctly on the machine. Connecting to a Wireless LAN
Match the WEP Authentication Method on the Machine and Wireless LAN Router.
The machine may be set to Shared Key Authentication, and the wireless LAN router may be set to Open System Authentication. Change the WEP setting according to the authentication method you are using.
When Using Open System Authentication
Connect to the wireless LAN using either of the following methods:
Connect with the access point setup method. Connecting to a Wireless LAN by Searching for a Router (Access Point Setup Method)
Using the Manual Setup Method, connect with the WEP authentication method set to [Open System]. Connecting to a Wireless LAN by Setting the Details (Manual Setup Method)
When Using Shared Key Authentication
On the wireless LAN router, change the WEP authentication method to "Shared Key", and connect again. For the setup method, see the manual of the wireless LAN router or contact the manufacturer.

Direct Connection terminated.

The connection with a mobile device was terminated.
Directly Connect Again.
Connecting a Mobile Device Directly to the Machine (Direct Connection)

Easy Connection via PC ended due to timeout The device will restart.

30 minutes have elapsed since the start of the cableless setup mode without connecting to the computer.
Restart the Machine, and Start Cableless Setup Mode Again.
Administrator privileges are required.
[Home] on the control panel [Menu] [Preferences] [Network] [Easy Connection via PC] [Yes] start the settings on the computer

Encryption key not set correctly. Check encryption key set.

The network key (encryption key) of the wireless LAN router (access point) may not be configured correctly on the machine.
Reset the Network Key.
Reset the network key. Connecting to a Wireless LANEnd of Cartridge Lifetime
The toner cartridge have reached the end of their lifetime.
It Is Recommended to Replace with New Toner Cartridge.
Press [Display Cartridge Replacement Steps] and replace the toner cartridge while following the instructions on the screen. Replacing the Toner Cartridge

Key Lock is enabled.

Usage of the control panel keys is restricted.
Cancel the Key Lock Function with Remote UI.
Restricting Use of the Control Panel (Black and White LCD Model)

Load paper.

Correct paper is not loaded.
Is Paper Loaded in the Paper Drawer or Multi-purpose Tray?
Load paper if not loaded. Loading Paper
Are You Using Appropriate Paper When Printing Reports, Lists, and Received Data?
Check that the paper is usable, and replace it with paper to suit your purpose.
Usable Paper
Loading Paper
Set the paper size and type correctly according to the loaded paper. Specifying the Paper Size and Type

Low Cartridge Level

It is nearing the time to replace the toner cartridge.
Prepare New Toner Cartridge, and Replace the Old Ones, as Needed.
When printing large printing jobs, it is recommended to press [Display Cartridge Replacement Steps] and replace the toner cartridge while following the instructions on the screen. Replacing the Toner Cartridge
To Continue Printing, Use the Procedure Below.
When I-Faxing
When receiving an I-Fax, the data may be saved to the memory of the machine without being printed to prevent printing text that is difficult to read or images that are difficult to see.
To continue printing, enable [Continue Printing When Amount in Cartridge Is Low].
Log in to Remote UI [Settings/Registration] [RX/Forwarding Settings] or [RX Settings] [Common Settings] [Edit] in [Common Settings] select the [Continue Printing When Amount in Cartridge Is Low] checkbox [OK]
On the control panel, select [Menu] in the [Home] screen, and then select [Function Settings] to configure the settings. [Continue Print. When Cart. Low] or [Continue Print. When Amount in Cart. Low]
* When this setting is enabled, the printing results may be light or faded.
You can manually specify when this message appears (when toner is low). [Display Timing for Cart. Prep.] or [Displ. Timing for Cartridge Prep. Notif.]

Memory Full (Skip Error)

The memory is full with data that has not been printed due to an error.
Cancel Printing of the Data with an Error, or Press [Skip Error] on the [Status Monitor] Screen.
Canceling Printing with the Control Panel
Viewing the Print Job Status and Log

Memory Full (Secure Print)

The memory is full with Secure Print data that has not been printed.
Print the Secure Print Data Saved to the Memory.
For details about how to print, see the procedure for when using the Secure Print function. Step 2: Printing Secure Data by Entering a PIN or Password

Memory Full (Secure Print)

The memory is full with Secure Print data that has not been printed.
Print the Secure Print Data Saved to the Memory.
For details about how to print, see the procedure for when using the Secure Print function. Step 2: Printing Secure Data by Entering a PIN or Password

Memory Full (Skip Error)

The memory is full with data that has not been printed due to an error.
Cancel Printing of the Data with an Error, or Press [Skip Error] on the [Status Monitor] Screen.
Canceling Printing with the Control Panel
Viewing the Print Job Status and Log

Memory media is restricted.

The settings are configured to not print data from a USB memory device.
To Cancel Restriction, Change the [Memory Media Settings] Setting.
The machine must be restarted to apply the settings.
Log in to Remote UI in System Manager Mode  [Settings/Registration]  [Access Files Settings]  [Memory Media Settings]  [Edit]  select the [Memory Media Print] checkbox  [OK]  restart the machine
On the control panel, select [Menu] in the [Home] screen, and then select [Function Settings)] to change the setting. [Memory Media Settings]

Memory Media Print is restricted.

The settings are configured to not print data from a USB memory device.
To Cancel Restriction, Change the [Memory Media Settings] Setting.
The machine must be restarted to apply the settings.
Log in to Remote UI in System Manager Mode [Settings/Registration] [Access Files Settings] [Memory Media Settings] [Edit] select the [Memory Media Print] checkbox [OK] restart the machine.
On the control panel, select [Menu] in the [Home] screen, and then select [Function Settings] to change the setting. [Memory Media Settings]

No Paper

Usage of the control panel keys is restricted.
Load the Paper.
Load the paper for printing reports, lists, or I-Faxes, and set the paper size and type. Loading Paper

No reply from the destination.

The Ethernet cable may not be connected or there may be a problem with the switch.
Check the Ethernet cable and switch status.

No response from the host.

The machine is not connected correctly to the network.
Check the Settings of the Machine and Network, and Connect Again.
When Connected via Wireless LAN
Configure the settings correctly according to your usage environment. Connecting to a Wireless LAN
When Connected via Wired LAN
Check that the Ethernet cable is properly connected. Connecting to a Wired LAN

Paper jammed.

Paper jammed in the machine during printing.
Remove the Jammed Paper, and If Printing Does Not Resume Automatically, Try Printing Again.
Paper Jams

Paper Settings and Loaded Size Mismatch or Size/Settings Mismatch

The size of the paper loaded in the machine does not match that set on the control panel or printer driver.
Match the Size of the Loaded Paper with the Paper Size Setting.
When Using the Loaded Paper
Change the paper size setting on the control panel to match the size of the loaded paper.
Setting the Paper Size and Type for the Paper Drawer
Setting the Paper Size and Type for the Multi-purpose Tray
When printing from a computer, change the paper size setting on the printer driver to match the size of the loaded paper. Printing from a Computer
When Reloading Paper
Load paper of the size set on the control panel or printer driver. Loading Paper
Check That the Paper Guides Are Aligned with the Markings and Are Not Too Loose or Too Tight.
 
Paper Drawer
 
Multi-purpose Tray

Prepare cartridge.

It is nearing the time to replace the toner cartridge.
Prepare New Toner Cartridge, and Replace the Old Ones, as Needed.
When printing large jobs, it is recommended to replace the toner cartridge. Replacing the Toner Cartridge
To Continue Printing, Use the Procedure Below.
When I-Faxing
When receiving an I-Fax, the data may be saved to the memory of the machine without being printed to prevent printing text that is difficult to read or images that are difficult to see.
To continue printing, enable [Continue Printing When Amount in Cartridge Is Low].
Log in to Remote UI [Settings/Registration] [RX/Forwarding Settings] or [RX Settings] [Common Settings] [Edit] in [Common Settings] select the [Continue Printing When Amount in Cartridge Is Low] checkbox [OK]
On the control panel, select [Menu] in the [Home] screen, and then select [Function Settings] to configure the settings. [Continue Print. When Cart. Low] or [Continue Print. When Amount in Cart. Low]
* When this setting is enabled, the printing results may be light or faded.
You can manually specify when this message appears (when toner is low). [Display Timing for Cart. Prep.] or [Displ. Timing for Cartridge Prep. Notif.]

Printing is restricted.

Printing is restricted due to Department ID Management.
Log In with a Department ID That Does Not Restrict Printing.
For the Department ID and PIN, contact the system administrator.
To Cancel Restriction, Change the [Restrict Functions] Setting of Your Department ID.
Log in to Remote UI in System Manager Mode [Settings/Registration] [User Management] [Department ID Management] select the Department ID to edit clear the [Restrict Color Print] and [Restrict Black & White Print] checkboxes [OK]
On the control panel, select [Menu] in the [Home] screen, and then select [Management Settings] to change the setting. [Department ID Management]

Problems resulting from the use of non-Canon cartridges are not covered under the warranty. The amount remaining in the cartridge cannot be displayed correctly.

The remaining amount of toner is not correctly displayed due to the use of a toner cartridge whose print quality cannot be guaranteed.
Replace with a New Toner Cartridge.
Replacing the Toner Cartridge
For optimum print quality, using Canon genuine toner cartridges is recommended. List of Consumables

Set the correct authentication information.

The authentication method or authentication information of IEEE 802.1X is not set correctly.
Set the Authentication Method and Authentication Information (Keys and Certificates, Password, CA Certificate) Correctly.
Setting IEEE 802.1X
Managing and Verifying a Key and Certificate

Set the information necessary for authentication.

The authentication method or authentication information of IEEE 802.1X is not set correctly.
Set the Authentication Method and Authentication Information (Keys and Certificates, Password, CA Certificate) Correctly.
Setting IEEE 802.1X
Managing and Verifying a Key and Certificate

Size/Settings Mismatch

The size of the paper loaded in the machine does not match that set on the control panel or printer driver.
Match the Size of the Loaded Paper with the Paper Size Setting.
When Using the Loaded Paper
Change the paper size setting on the control panel to match the size of the loaded paper.
Setting the Paper Size and Type for the Paper Drawer
Setting the Paper Size and Type for the Multi-purpose Tray
When printing from a computer, change the paper size setting on the printer driver to match the size of the loaded paper. Printing from a Computer
When Reloading Paper
Load paper of the size set on the control panel or printer driver. Loading Paper
Check That the Paper Guides Are Aligned with the Markings and Are Not Too Loose or Too Tight.
 
Paper Drawer
 
Multi-purpose Tray

The authentication server certificate has expired.

The server certificate sent from the RADIUS server has expired.
Check the Expiry Date of the RADIUS Server.
Setting IEEE 802.1X

The authentication server certificate is incorrect.

A CA certificate that supports the certificate of the authentication server is not registered to the machine.
Check the certificate information of the authentication server, and register a supported CA certificate.
Setting IEEE 802.1X
Registering a Key and Certificate or CA Certificate Obtained from an Issuing Authority

The computer is restricted.

Saving of scanned data to a computer is restricted due to Department ID Management.
To Cancel Restriction, Change the [Department ID Management] Setting.
Log in to Remote UI in System Manager Mode [Settings/Registration] [User Management] [Department ID Management] [Edit] select the [Allow Scan Jobs with Unknown IDs] checkbox [OK]
On the control panel, select [Menu] in the [Home] screen, and then select [Management Settings] to change the setting. [Department ID Management]

The encryption key is not set correctly. Check the encryption key settings.

The network key (encryption key) of the wireless LAN router (access point) is not configured correctly on the machine. Alternatively, the WEP authentication method of the machine does not match that of the wireless LAN router.
Reset the Network Key.
Check the network key of the wireless LAN router, and configure the settings correctly on the machine. Connecting to a Wireless LAN
Match the WEP Authentication Method on the Machine and Wireless LAN Router.
The machine may be set to Shared Key Authentication, and the wireless LAN router may be set to Open System Authentication. Change the WEP setting according to the authentication method you are using.
When Using Open System Authentication
Connect to the wireless LAN using either of the following methods:
Connect with the access point setup method. Connecting to a Wireless LAN by Searching for a Router (Access Point Setup Method)
Using the Manual Setup Method, connect with the WEP authentication method set to [Open System]. Connecting to a Wireless LAN by Setting the Details (Manual Setup Method)
When Using Shared Key Authentication
On the wireless LAN router, change the WEP authentication method to "Shared Key", and connect again. For the setup method, see the manual of the wireless LAN router or contact the manufacturer.

The memory is full.

Printing cannot be performed due to insufficient available memory. If there is data waiting to be printed, wait until the processing is completed.
Reduce the File Size or Divide the File.
Optimize the file to make it smaller, or divide the file and then print it.

The number of entered characters is incorrect or invalid characters are used.

The network key of the wireless LAN router (access point) is not configured correctly on the machine.
Reset the Network Key.
Check the network key of the wireless LAN router, and configure the settings correctly on the machine. Connecting to a Wireless LAN

Use Remote UI to set the information necessary for authentication.

The authentication method or authentication information of IEEE 802.1X is not set correctly.
Check the IEEE 802.1X Setting, and Set This Correctly.
Check the following, and change the setting, as needed. Setting IEEE 802.1X
The login name is specified correctly.
At least one of the following checkboxes is selected: [Use TLS], [Use TTLS], and [Use PEAP].
When using TLS, a key and certificate are registered.
When using TTLS or PEAP, the user name and password are set correctly.
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