Epson AcuLaser C900

• Code: 6027
• Description: Fusing roller / thermistor error
  When the Fusing Roller temperature is 220°C or higher for 0.1 second. When between 40 seconds and 50 seconds after start of warming up of the Fusing Roller, the Fusing Roller temperature does not rise for one second by 5°C from that at start of fuser warming up.
• Causes: • Thermistor (TH1) • Engine Board (PWB-A)
• Remedy: 1 Check to see if TH1 is shorted. (Between CN18-1 and 2 on thermistor side) YES Clean TH1. HEATER Replace the Fuser Unit. NO Replace the PU. Replace the PWB-A.

• Code: 6033
• Description: Transparency detection sensor error
  Transparency is not detected.
• Causes: • OHP Sensor (PC3A) • Engine Board (PWB-A)
• Remedy: 1 Check the operation of PC3A. PC3_REM 2 Replace the PWB-A.

• Code: 6041
• Description: Memory counter error
  EEPROM error detection
• Causes: • EEPROM • Engine Board (PWB-A)
• Remedy: 1 Replace the EEPROM. - - 2 Replace the PWB-A.

• Code: 6042
• Description: Memory data error
  EEPROM error detection
• Causes: • EEPROM • Engine Board (PWB-A)
• Remedy: 1 Replace the EEPROM. - - 2 Replace the PWB-A.

• Code: 6043
• Description: Memory access error
  EEPROM error detection
• Causes: • EEPROM • Engine Board (PWB-A)
• Remedy: 1 Replace the EEPROM. - - 2 Replace the PWB-A.

• Code: 6044
• Description: Memory installation error
  EEPROM error detection
• Causes: • EEPROM • Engine Board (PWB-A)
• Remedy: 1 Replace the EEPROM. - - 2 Replace the PWB-A.