Boca Systems Mag 42, Руководство пользователя

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8.1.6 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:
(Please refer to figures 9a - c)
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 the print head, remove the ribbon connector from the print head and then
remove the print head from the mounting block by removing the two unmarked screws.
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