11
8.1.2 THERMAL PRINT HEAD
The print head should be cleaned periodically to prevent debris from building up on the print element.
The required cleaning interval varies greatly depending on the quality of the ticket stock and the
amount of dust entering the print area. Excessive dirt build up on the print head will result in reduced
quality. Continuing to run the print head in a dirty condition will reduce its life expectancy, as it is
unable to diffuse its heat properly.
The thermal print head can be removed for cleaning or replacement, as follows:
1. Make sure power is off and the AC cord is disconnected from the printer.
2. DO NOT UNPLUG CABLE FROM PRINT HEAD.
3. Lift up on the cam lock assembly (located above the head mounting block) to
remove pressure from the thermal head.
4. Lift up on the head mounting block/thermal head to remove.
5. Clean the thermal print head surface (the side that makes contact with the paper)
with isopropyl alcohol.
6. Install the head by reversing the above procedures.
7. Restore pressure to the head by pushing down on the cam lock assembly.
8. The printer in now ready for operation. If the print quality is still poor then the
thermal head needs to be replaced.
9. To replace print head remove ribbon connector from print head and then remove
print head from mounting block by removing two unmarked screws.
CAM LOCK ASSEMBLY
HEAD MOUNTING BLOCK
THERMAL HEAD
CLEAN THIS SURFACE
Click here to return to >
Table of Contents
