Xerox 5018

• Code: U4-1
• Description: Fuser problem. Long warm up

• Code: U4-2
• Description: Low fuser temperature after warm up

• Code: U4-3
• Description: High fuser temperature

• Code: U4-4
• Description: Open fuser thermistor

• Code: U4-6
• Description: Replace fuser web

• Code: U4-7
• Description: Thermistor signal problem