Tech Mode - Samsung ML-651x 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
To enter the Tech Mode, press " Menu + # + 1 + 9 + 3 + 4 " in sequence
Service Manual
ML-551x / 651x series
4. Alignment and Troubleshooting
1
4-21
5
3
6
4
2
Samsung Electronics