Troubleshooting Both NVRAM and Main PCA are Replaced Together When both the NVRAM and the Main PCA are replaced at the same time, mechanical correction value parameters, counters, calibrations, etc... are lost. Whenever possible, this most be prevented by just replacing either the NVRAM or the Main PCA. If for whatever reason, both the NVRAM and the Main PCA are replaced together, you need to perform the following: 1 Make sure that the NVRAM and the Main PCA have been installed correctly. 2 Press the Cancel key and Power On button in order to skip the system check. 3 Enter into the Maintenance Mode ⇒ Page 4-7 . 4 Press the Shift key once and then the W key to enter in to the Setup menu.
5 In the Setup submenu, scroll to "NVRAM Init" and press th e OK key. # NVRAM INIT > 6 You will need to confirm that you want to initialize the NVRAM by pressing the OK key. # NVRAM INIT * OK? 7 In the Setup submenu, scroll to "Language" and press the OK key. # LANGUAGE > ENGLISH 8 In the Language submenu, select "English" or "Japanese" and press the OK key. # LANGUAGE * ENGLISH 9 Power Off the Printer. 10 Press the Cancel and Shift keys and Power On button in order to skip the error recovery check of the Printer. 11 Perform the Line Sensor Test ( ⇒ Page 4-53 ) to register the platen’s maximum value read by the Line Sensor to the NVRAM automatically.
12 Power Off the Printer, wait a few seconds and power On the Printer again. 13 You will need to check, and if necessary perform the following: „ Wiping Position Calibration ⇒ Page 5-23 . „ Capping Position Calibration ⇒ Page 5-25 . „ Printhead Voltage ⇒ Page 4-22 . „ Printhead Row Value ⇒ Page 4-19 . „ Printhead to Printhead Value ⇒ Page 4-19 . „ Bidirection Definitions ⇒ Page 4-21 . „ Media Advance Print ⇒ Page 4-11 . HP Designjet 9000s Series Printer Service Manual 1-7