Tech Mode; Entering The Tech Mode - Samsung ML-451 Series Service Manual

4.1.8. Tech Mode

4.1.8.1. Entering the Tech Mode

In service (tech) mode, the technician can check the machine and perform various test to isolate the cause of a malfunction.
While in Tech mode, the machine still performs all normal operations.
To enter the Tech Mode
•
ML-451x/5010/5012 series
To enter the Tech Mode, press "Menu + # + 1 + 9 + 3 + 4" in sequence
•
ML-5015/5017 series
While pressing the "Cancel" button, press the triangle button on LCD.
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4. Alignment and Troubleshooting
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