4. Alignment and Troubleshooting
4-17
Samsung Electronics
Service Manual
ML-331x/371x series
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.
NOTE - There is no tech mode for LED type model (ML-331xD,371xD)
To enter the Tech Mode
To enter the Tech Mode, press “ Menu + Back + Left + Right + OK + Cancel” in sequence
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