HOME PAGE | < Previous | Contents | Next >
Troubleshooting
Troubleshooting
Troubleshooting
6.1.2 CONTROLLER SELF-DIAGNOSIS OUTLINE
Controller self-diagnosis includes 3 types, i.e., "ordinary self-diagnosis", "detailed self-diagnosis", and "SC detection". "Ordinary self-diagnosis" is diagnosis performed for every power ON, and "detailed self-diagnosis" is diagnosis treated as part of the service tools. "SC detection" detects mechanical faults when power is switched on or when the machine is operating.
Detailed self-diagnosis – Method
1. After attaching the option "IEEE 1284 board" to the controller board, connect the provided conversion connector.
2. Set a loop back connector in the reference Centronics I/F.
3. Press the main power supply switch while simultaneously pressing the "#" and "./* key. The display changes to the following screen, and self-diagnosis starts.
4. After the end of detailed self-diagnosis, a "Self-diagnosis results report" is automatically printed.
If a Centronics loopback connector is not fitted, a Centronics diagnosis error (SC 835) is generated.