Panduit PTR3E - Manual (Page 52)

6. View the Print Head from the front of the printer. Locate the center mounting
screw on the top of the assembly. Unscrew this screw and set it aside.
7. The Print Head should now be loosened from the top of the assembly by
grasping either side and carefully pulling it down.
8. Disconnect the signal and power cables from the print head connectors and
set the Print Head aside.
DO NOT remove the two outside screws (painted red) on either side of the center
mounting screw. The Print Head is pre-aligned and if these screws are loosened, it will
have to be re-aligned for proper print quality.
9. Carefully attach the new print head to the connectors, using caution to make
sure the connector keys are correctly positioned.
NOTE: Be careful not to scratch the printing surface of the print head while installing it.
Scratching the surface will cause permanent and irreparable damage and is not covered
by the warranty!
10. Locate the mounting screw in the top plate assembly and align it with the
tapped hole in the new print head.
11. Re-secure the print head by tightening the screw.
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Section 4: Cleaning and Maintenance
Print Head
Print Head
Connector
Print Head
Mounting Screw
Head Latch