When replacing the EEPROM on the Engine Board, please check the following points:

  • If a near end alert for the fusing unit, paper transfer roller unit, or PCDU is displayed, replace them with new units before carrying out EEPROM replacement. Not doing so may cause image quality problems or SC490.
  • If the Waste Toner Bottle is near full, replace it with a new one. Not doing so may cause toner overflow.
  • After replacing the EEPROM, check that there is no image quality problem. If an image quality problem occurs, do not try to fix it by putting the old EEPROM back, but make adjustments so that they are stored in the new EEPROM.

If the EEPROM download/upload feature cannot be used, do the following steps;

  1. Login to the machine using the factory SP mode (Cover open).
    • Set these SPs in the factory SP mode.
      1. 5-807-001 “Machine Type Area Selection”<- NA:”2”, EU:”3”, ASIA:”4”, CHN: “5” , TWN:”6” , KOR:”7”
      2. 5-807-002 “Machine Type Model Selection”: “4”
      3. 5-930-001 “Meter Click Charge” <-Set the value on the latest SMC sheet
      4. 5-988-001 “Maintenance ID” <-Set the value on the latest SMC sheet
      5. 5-988-002 “Brand ID” <-Set the value on the latest SMC sheet
      6. 5- 811-001 “Machine Info Set: Serial No.”<-Input the 5-811-002 value from the SMC sheet
      7. 5-801-002 Execute “Engine Memory Clear”
  2. Power OFF, then power ON. Login to the normal SP mode.
    • Input values from the latest SMC sheet
      1. 3-333-001 to 3-333-006 “TM (ID) sensor (right) adjustment value”
      2. 3-334-001 to 3-334-006 “TM (ID) sensor (left) adjustment vale”
      3. 1-001-013 to 1-001-024 “Sub scan direction registration”
      4. 1-002-001 to 1-002-006 “Main scan direction registration”
      5. 1-003-001 to 1-003-012 “Paper buckle adjustment”
  3. Close Cover, then do the following steps in this order.
    1. 2-111-002 Execute “Line position adjustment factory mode”
    2. 3-011-001 Execute ”Normal Process Control”
    3. 2-185-002 Input “1” in “Margin Position: Base Calculation Flag”
    4. 2-111-001 Execute “Line position adjustment normal mode”
    5. 2-185-002 Input “1” in “Margin Position: Base Calculation Flag”
    6. 2-111-003 Execute “Line position adjustment Black mode”
    Ready to use the machine