HyperX Gear-Auger Mix SCX-8120ND POM 0,6 22 NAT (JC66-03950A)

When the toner or developer stops feeding correctly in a Samsung MultiXpress SCX-8120 series printer, the cause is often a worn or broken auger gear. This replacement auger gear restores the precise rotation needed to move toner and developer through the transport system, preventing print quality issues like streaks, fading, or error messages related to toner supply.

Who is it for

This part is for technicians and advanced users who maintain Samsung MultiXpress SCX-8120ND, SCX-8123ND, or SCX-8128ND printers. It is an internal component of the developer unit or toner supply system and requires disassembly of the printer to install.

Main features

• Direct replacement for Samsung part number JC66-03950A
• Made from polyoxymethylene (POM), also known as acetal, for high wear resistance and low friction
• Module 0.6 mm with 22 teeth for exact fit and smooth operation
• Natural (translucent white) colour matches original component
• Drives the toner/developer auger for consistent material delivery

Specifications

• Part type: Auger gear
• Material: Polyoxymethylene (POM) / Acetal
• Gear module: 0.6 mm
• Number of teeth: 22
• Colour: Natural (translucent white)
• Compatible printer models: Samsung MultiXpress SCX-8120ND, SCX-8123ND, SCX-8128ND
• Application area: Toner/developer transport system
• Function: Drives toner/developer auger for precise material delivery
• Product condition: New

Tips

Before replacing the gear, power off the printer and disconnect it from the mains. Refer to the printer service manual for the correct procedure to access the developer unit. Handle the gear by its edges to avoid contaminating the teeth with skin oils, which can affect performance.