Printhead Adjustment 5 Use the S and T keys to change the digits and use the W and X keys to select the digits. Enter the value that you noted down in step 2. # PH ROW VAL > Lm >+01 6 Press the OK key once you have entered the new value. 7 Locate the Printhead to Printhead pattern in the Printhead Adjustment pattern. Printhead to Printhead Pattern 8 Select the pattern that looks the best aligned and note down the value (either a - value or a + value). Lines not well aligned Lines well aligned 9 In the Printhead Adjustment submenu, scroll to "PH to PH Val" and press the X key. # PH TO PH VAL # Lm 3-12 HP Designjet 9000s Series Printer Service Manual