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II. MALFUNCTION TROUBLESHOOTING
A. Initial Check
1) Check the rated voltage is present.
2) Confirm that the power plug is firmly inserted into the printer, optional I/O device and wall
socket.
3) Check that the interface connector is firmly connected.
B. Malfunction Troubleshooting
The malfunction troubleshooting when the paper handling controller PCB is installed in the
printer are as follows. Be sure to check that the printer operates normally before installing the
paper handling controller PCB.
1) Turn OFF the printer and reinstall the paper handling controller PCB. If the problem is still
not rectified, conduct the troubleshooting procedures for the various optional I/O devices
specified in their respective service manuals.
Notes: 1. Refer to the service manual of the printer for printer troubleshooting.
2. When removing or installing the paper handling controller PCB, be sure to always
turn the printer power OFF.
CHAPTER 2
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