NBS Technologies Advantage M8 Operation Manual page 60

2. Clean the Card transfer rollers on the Main Transfer Unit.
Clean the two Drive Rollers (lower side) and the two Passive Rollers (upper side) while turning the knob.
Use a waste cloth or a cotton swab absorbed with Ethanol.
3. Clean the Card transfer rollers on the Vertical Rotation Unit.
Clean the Drive Roller and the three Passive Rollers while turning the white gear.
Use a waste cloth or a cotton swab absorbed with Ethanol.
Passive Rollers
Drive Rollers
Passive Roller
Gear
Drive Roller
53
Knob