SECTION 6.

TROUBLESHOOTING

This section has been devised to help you if you are unable to produce output on the M-8400RV. Use this section to make sure the basics have been checked before deciding you are unable to proceed any further. The section is divided into three parts:

Initial Checklist

Centronics Parallel Interface

RS232C Serial Interface

INITIAL CHECKLIST

1.Is the printer powered up and On-Line?

2.Do any of the Front Panel LEDs indicate an error condition? If this light is ON, it may mean the print head assembly is open.

3.Is the Print Head and the Label Hold-Downin the down and latched position.

USING THE CENTRONICS (PARALLEL) INTERFACE

1.Is the IBM parallel printer cable connected securely to your parallel port (DB-25S Female) on the PC and to the Centronics connector on the printer?

WARNING: Never connect or disconnect interface cables (or use a switch box) with power applied to either the printer or the host. This may cause damage to the interface circuitry and is not covered by warranty.

2.Is there more than one parallel interface port on your PC (LPT1, LPT2, etc.)? If so, make sure you are sending data out the correct port.

3.When you send the print job to the printer, and it does not respond, do you get an error message on your PC that says “Device Fault” or something similar?

This may mean that the computer doesn’t know the printer is there. Verify that:

a.Both ends of the cable are securely inserted into their respective connectors.

b.The printer is On-Line.

SATO M-8400RV

9001041 Rev. D

Page 6-1

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SATO M-8400RV manual Initial Checklist, Using the Centronics Parallel Interface