Lexmark C752 Service Manual page 269

3.
Turn the thumbwheel (see Figure 1) until the end of the thumbwheel just touches the printhead mounting
beam for both the front and rear alignment assemblies.
4.
Remove the old printhead and install a new printhead assembly. Do not tighten the printhead screws yet.
Note: Make sure the right rear screw goes through the printhead spacer located at the right rear of the
printer frame.
5.
Bias the new printhead assembly against the front and rear stops.
6.
Tighten the right rear printhead mounting screw. Then, tighten the front screw followed by the left rear
screw. Make sure the printhead is biased against the thumbwheels when tightening the screws.
7.
Securely close the front cover or reattach if previously removed.
8.
Turn the printer on and enter the Diagnostics mode.
9.
If replacing the black printhead go to step 10. Otherwise, select Alignment, select color of the printhead
that was replaced, and set the Z value to zero. Exit Alignment menu.
10.
Select Miscellaneous Test and Printhead Inst Alignment.
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Repair information