Printhead Adjustment Set Printhead Voltage Before the Printhead can be used to print correctly, you must set the Printhead Voltage as follows: Remember to set BOTH the left and right Printhead Voltage values for each Printhead correctly. You can find the Printhead Voltage values on each Printhead as shown: Voltage Values 1 Power On the Printer and enter in to the Maintenance Mode ⇒ Page 4-7 . 2 Press the W key to enter in to the Printhead Adjustment menu. Press the Left Arrow Key to select S P. ADJ PH. MAIN T W PH. ADJ 3 In the Printhead Adjustment submenu, scroll to "PH Voltage" and press the X key.
# PH VOLTAGE # Lm (L) 4 In the PH Voltage submenu, select the color of the Printhead (either left or right) for which you would like to set the Printhead Voltage and press the OK key. If you would like to exit the PH Voltage submenu, press the W key. # PH VOLTAGE > Lm (L) >16.0 V 5 Use the S and T keys to change the digits and use the W and X keys to select the digits. The value can be changed in a range of 12.0 to 20.0 V (in increments of 0.1 V). Press the OK key once you have entered the new value. # PH VOLTAGE > Lm (L) >17.6 V HP Designjet 9000s Series Printer Service Manual 3-9