Chapter 7 Parts Replacement
AC-4000 Service Manual No. 0181A
7-12
Thermal head specifications
Adjusting thermal head print conditions
•
Loosen the two screws (M3 x 6) slightly, and move the thermal head back and forth.
•
Adjust to match the top point of the print roller with the thermal head applied point.
Model
LH3124I (Double-density thermal head) made by TDK
Total dot number
448 dots
Dot pitch
0.135mm
Head resistance
R=528 to 672 (automatic setting)
Power consumption
0.66W/dot
Applied voltage
24V
Adjustment screw (M3 x 6)
Moves back and forth.
Thermal head
Print roller
Summary of Contents for AC-4000B
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