SATO CT400 Operator And Technical Reference Manual page 42

Section 3: Cleaning and Maintenance
5. View the Print Head Assembly from the front of
the printer. Locate the mounting screw on the top
of the assembly. It is accessible through a hole in
the top of the assembly . Unscrew these Head
Retaining screw and set it aside.
6. The Print Head should now be loosened from the
top of the assembly by grasping either side and
carefully pulling it forward.
7. Disconnect the connecting cable from the print
head connectors and set the Print Head aside.
8. Carefully attach the new Print Head to the
connectors, using caution to make sure the
connector keys are correctly positioned. The
connector is keyed so that it can only be inserteed
easily in the correct orientation.
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!
9. Locate the mounting screw in the top plate
assembly and alignit with the tapped holes in the
new Print Head.
10. Re-secure the print head by tightening the screw.
Page 3-4 9001069A SATO CT Series Printers