3 - 101Chapter 3 Removal and Replacement Procedures (RRPs)Version 3 2007.03.15Replacement 17 MACHINE CONTROL UNIT (PL9.1.20)When the MACHINE CONTROL UNIT is replaced with a new one, perform the fol-lowing steps. (After completing all the steps up to Replacement 47.)4) Plug in the power cord to the outlet, and power on the printer.5) Perform the diagnostic operation of NVM Load, and write the data into MCU.6) Turn on the power while pressing the key, the key and the [MENU] key on the controlpanel.7) Enter the password, push the key twice and push the 3 key once. The diagnostic screencomes up.8) Press the key several times until “IOT Diag” is displayed. Press the 3 key once.9) Press the key several times until “NVM Settings” is displayed. Press the 3 key once.10) Press the key several times until “NVM Load” is displayed. Press the 3 key once.11) Press the 3 key twice, and NVM Load is performed.12) After the NVM Load is complete, press the [CANCEL] key several times until “IOT Diag” isdisplayed.13) Press the key several times until “Complete” is displayed.14) Press the 3 key three times, and “Ready to Print” is displayed.Go to the next replacement step:Replacement 19 SHIELD ASSY ESS (REFERENCE ONLY)
