Lexmark T652 Service Manual - Page 324

4062-XXX Adjustments Polygon and Oscillating printhead mechanical registration adjustment Do the printhead mechanically registration adjustment whenever you remove or replace the printhead or loosen the mounting screws. Install the new printhead with the mounting screws centered in the slots in the printhead frame assembly. Leave the screws loose enough to allow the printhead to move from side to side within the slots. It is necessary to perform a mechanical registration adjustment before locking down the three printhead mounting screws. Paper feed skew Printhead misalignment Note: In the case of paper feed skew, go to "Alignment assembly adjustment" on page 4-4. To perform the mechanical registration adjustment: 1. Turn the printer off. 2. Press and hold and to enter the diagnostic mode. 3. Turn the printer on, and release the buttons when Performing Self Test displays. 4. Select Registration from the menu. 4-2 Service Manual