Samsung ProXpress M4530ND
Service Mode. 1. How to Enter
To enter the Service Mode
• M4530ND
Press “Menu + # + 1 + 9 + 3 + 4 + Menu” in sequence
• M4530NX
- While pressing the “Cancel” button, press the triangle button on LCD.
- Select “Service Mode” menu.
- When the passcode window appears, input “1934” and touch OK button.