Printhead Adjustment Calibrate the Printhead Adjustment Jig To speed up the Printhead Adjustment, you can follow the tip on Page 3-19. If the tip is followed, then it is not necessary to calibrate the Printhead Adjustment Jig. Before installing the Printhead Adjustment Jig 1 in to the Carriage, it needs to be calibrated as follows: 1 Retract the datum pins located in the Printhead Adjustment Jig 1 by turning the Adjustment Screws counterclockwise using a small Flat-Head Screwdriver. Datum Pins 2 Place the Printhead Adjustment Jig 1 on top of the Printhead Adjustment Reference Plate as shown: 3 Insert the two Printhead Positioning Pins in to the Printhead Adjustment Jig 1.
HP Designjet 9000s Series Printer Service Manual 3-3 Adju stment Screws