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4.14 Troubleshooting for Other Problems
4.14.1 Cannot print
4.14.2Cannot update firmware
4.14.3USB direct interface errors
<User Check>
• Turn the power switch OFF and then ON again.
• Check that the USB cable is connected to the host correctly.
• Check that the LAN cable is connected to the host correctly.
• Replace the USB cable.
• Replace the LAN cable.
• Check that the maximum printable page number has not been exceeded.
• Check that the PC Print is not forbidden.
• Check the print limit ID.
• Check the network connection.
• Check the relevant section in the Network Setting Guide.
• Check that the print data is not damaged.
• Install the latest main firmware.
• Match the document size with the one specified in the driver.
Step Cause Remedy
1
Connection failure of the wireless
LAN connector
Reconnect the wireless LAN connector.
2 Wireless LAN PCB failure Replace the wireless LAN PCB.
3 Main PCB failure Replace the main PCB ASSY.
<User Check>
• Make sure that there is no other function running.
• Turn the power switch OFF and then ON again.
Step Cause Remedy
1
Firmware version does not match Reinstall the latest sub firmware and main
firmware in this order.
2 Main PCB failure Replace the main PCB ASSY.
<User Check>
• Replace the USB flash memory.
• Check that the extension of data in the USB flash memory is correct.
• Check that an USB device not within the specifications is not connected.
• Check that multiple USB devices are not connected.
Step Cause Remedy
1 USB host harness failure Replace the USB host harness.
2 USB host PCB failure Replace the USB host PCB ASSY.
3 Main PCB failure Replace the main PCB ASSY.
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