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Is the power on?
Confirm that the cable is securely plugged into both the power outlet and the printer.
Turn on the power.
Does the Alert indicator stay red?
If so, check the error message on the display and take the required action.
For details, see When Messages Are Displayed.
Is paper loaded?
Load paper into the paper tray or onto the bypass tray.
For details, see Loading Paper.
Can you print a configuration page?
If you cannot print a configuration page, it probably indicates a printer malfunction. Turn the power off, and then back on. If the problem persists, contact your sales or service representative.
For details, see Test Printing.
Is the interface cable connected securely to the printer and the computer?
Connect the interface cable securely. If it has a fastener, fasten it securely as well.
Are you using the correct interface cable?
The type of interface cable you should use depends on the computer you use. Be sure to use the correct one.
If the cable is damaged or worn, replace it with a new one.
Is the Data In indicator flashing or lit after starting a print job?
If not flashing or lit, the data is not being sent to the printer.
If the printer is connected to the computer using the interface cable
Check that the port connection setting is correct.
Network Connection
Contact your network administrator.
How is the signal strength when using the Wireless LAN?
802.11 Ad hoc Mode
Either move to a location where the signal is good, or remove obstructions.
Infrastructure Mode
Check the signal status in the [Wireless LAN] menu on the control panel. If the signal is poor, either move to a location where it is good, or remove obstructions.
Is the printer installed in a location where radio waves might interfere?
If the printer is using wireless LAN (IEEE802.11g/b/n), when there is a microwave oven, mobile phone, industrial machine, scientific instrument, or medical instrument which uses the same frequency range near the device, radio waves may be interfering with the wireless LAN's communication.
Turn off the microwave oven, mobile phone, industrial machine, scientific instrument, or medical instrument which uses the same frequency range and then try printing again. If printing is successful, move the device to a location where it does not interfere.
