SATO CL-408 Service Manual page 75

Section 7 Replacement Procedures
7.2 REPLACING THE PRINT HEAD 
FIG. 7-3
CENTER SCREW
FIG. 7-4, 7.5
P. H.POWER
P.H. DATA
CABLE
CABLE
FIG. 7-6
PRINT HEAD
ALIGNMENT PINS
PRINT HEAD
FIG. 7-7
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SATO CL408/412 Service Manual