Removal and Replacement 6-3Locking the PrintheadDuring normal power-down, the printer tilts the printhead back andenergizes the X-axis drive to move the printhead to the far right.This allows the printhead’s tilt arm, which moves as the printheadmoves, to engage a pin protruding from the left-side printer frame.This effectively automatically locks the printhead in place for movingand shipping. The printer will not lock the printhead if any printerdoor is open.CAUTIONAfter servicing the printer with power off, never leave the printheadin the tilted-forward, far-right position. Upon power-up, theprinthead will be tilted backward and the head tilt arm will crashinto the head lock pin. This can damage process gears and beltsdriving the tilt arm.After servicing the printer. When you service the printhead, X-axis drive, cap/wipe/purge assembly or other relevant printercomponents, leave the printhead in its print position, centered infront of the drum. Upon power-up the printer can safely move theprinthead.Manually locking the printhead. If you must manually lock theprinthead:1. Disconnect the head tilt spring.2. With the printer powered off, carefully tilt the printhead backabout two-thirds of the way by rotating the compound gear.CAUTIONDo not allow the spring-loaded printhead to fall forward or it maydamage the drum.3. Manually rotate the X-axis drive gear to move the printhead tothe right extreme of its travel. Ensure the lock pin on the leftside of the printer frame properly engages the slot in the headtilt arm.4. Rotate the X-axis gear in the opposite direction about onerotation. This prevents the X-axis drive from binding so tightlythat the motor cannot free it upon power-up.5. Reinstall the head tilt spring.