Printhead Removal - Lexmark 4227 - Forms Printer B/W Dot-matrix Service Manual

4227-300

Printhead removal

1. Turn the printer off.
2. Disconnect the power cord at the printer.
CAUTION: Allow the printhead to cool for 15 minutes.
3. Remove the ribbon cover and ribbon.
4. Remove the two screws (1) on the cable retainer and
disconnect the two cables. These are ZIF connectors.
5. Remove the two screws (2) holding the printhead to the carrier,
and then lift the printhead out.
To reinstall
1. Fold the printhead cables under the printhead to prevent the
tension pulley plate from interfering with the cables.
2. Hold the printhead down while pressing it toward the platen, and
then tighten the two printhead mounting screws.
3. Perform the
4-32
Service Manual
"Printhead-to-platen gap adjustment" on page 4-2.