Minolta EP5420

• Code: C400
• Description: Exposure lamp won't turn on

• Code: C401
• Description: Exposure lamp won't turn off

• Code: C500
• Description: Low fuser temperature at warm up

• Code: C510
• Description: Low fuser temperature after warm up

• Code: C520
• Description: High fuser temperature

• Code: C522
• Description: Fuser thermistor