When You Cannot Print

The power is off.

For details about how to turn on the power, see "Turning On/Off the Power", Preparation.

The cause is displayed on the screen of the control panel.

Check the error message or warning status on the control panel, and then take the required action. For details about solutions, see Messages Displayed When You Use the Printer Function.

The interface cable is not connected correctly.

For details about how to connect interface cables correctly, see "Connecting to the Interface", Device Management.

The correct interface cable is not being used.

The type of interface cable you use depends on the computer. Be sure to use the correct one. If the cable is damaged or worn, replace it. For details about the interface cable, see "Connecting to the Interface", Device Management.

The interface cable was connected after the power was turned on.

Connect the interface cable before turning on the power.

If the machine is using wireless LAN, failure to print might result from a weak wireless signal.

• Check the radio signal status of the wireless LAN in [System Settings]. If signal quality is not satisfactory, move the machine to a location where radio waves can pass, or remove objects that might cause interference.

• You can check the radio signal status only when wireless LAN is used in infrastructure mode. For details about the radio signal status of the wireless LAN, see "Interface Settings", Device Management.

When there is a microwave oven or a wireless LAN access point near the device, radio waves may be interfering with the Bluetooth's communication.

Turn off the microwave oven and the wireless LAN access point, and then try printing again. If printing is successful, move the devices to a location where they do not interfere.

If the machine is using a wireless LAN (IEEE 802.11b/g/n), radio waves may be interfering with the wireless communication. This may occur if there is a microwave oven, cordless telephone, industrial machine, scientific instrument, or medical instrument using the same frequency range near the device.

Turn off other machines or instruments which use the same frequency range and then try printing again. If printing is successful, move the devices to a location where they do not interfere.

If the machine is using wireless LAN, SSID settings are incorrect.

Check using the machine's display panel that the SSID is correctly set. For details about SSID setting, see "Interface Settings", Device Management.

If the machine is using wireless LAN, the receiver's MAC address may be preventing communication with the access point.

• Check access point settings when in infrastructure mode. Depending on the access point, client access may be limited by MAC address.

• Check there are no problems in transmission between the access point and wired clients, and between the access point and wireless clients.

The login user name, login password, or driver encryption key is invalid.

Check the login user name, login password, or driver encryption key.

Advanced encryption has been set using the extended security function.

Check the extended security function settings. For details about extended security function settings, see "Specifying the Extended Security Functions", Security Guide.

A mechanical error might have occurred.

Contact your service representative.

The transmission mode is not configured correctly when using a wireless LAN in ad hoc mode.

• Turn off the power, and then back on again. For details about how to turn on and off the power, see "Turning On/Off the Power", Preparation.

• Change [Communication Mode] in [System Settings] to [802.11 Ad-hoc Mode], and then select [Off] for [Security Method]. For details about Communication Mode, see "Interface Settings", Device Management.

When the Data In indicator does not light up or flash after a print job starts, data is not being sent to the machine.

• When a cable is used to connect the computer directly to the machine, check whether the print ports are configured correctly.

• When the computer is connected to the network, ask your administrator about the computer's network connection.