PM43 Service Work Instructions
Intermec Proprietary Document
This printer has a customer replaceable printhead for both PM43 and PM43c.
The printer firmware can detect new printhead and retrieve the printhead information including part number and serial
number of the printhead.
Tools Required
Isopropyl alcohol solution
Parts Required
THP, 203 dpi 4”, Assy Spare PM43
THP, 300 dpi 4”, Assy Spare PM43
THP, 406 dpi 4”, Assy Spare PM43
Printhead Assembly Replacement
1. Turn the printhead lift lever counterclockwise to raise the printhead
2. Detach the magnetic pressure arm from the printhead bracket and disconnect the two cables from the printhead as you
remove it from the printer. See Figure 1.
3. Connect the two printhead cables to the new printhead
4. As you insert the new printhead bracket into the printer, make sure the metal arms on the printhead go around the
magnetic pressure arm. Attach the magnetic pressure arm to the printhead.
Figure 1 Thermal Printhead
Cleaning Printhead
Recommended that the installed printhead be cleaned. To clean the printhead, the following are needed:
• Silicone cleaning fluid
• Lint-free cleaning cloth
• Thermal printhead cleaning swab, wipe, or pen