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8.1.7 Rubber Drive Roller (Platen)
The rubber drive roller should be cleaned once a year to prevent paper dust from
building up on the roller. Clean drive roller with a paper towel and alcohol.
1. Lift up the cam lock assembly (located above the head mounting block) to remove
pressure from the thermal head. (see figure 9a)
2. Lift up the head mounting block/thermal head to remove it. (see figure 9b)
3. Clean the full legth of the Platen.
4. Install the head by reversing steps 1 and 2. Printer is now ready for normal
operation. (NOTE: The platen may require more frequent cleaning in dusty
environments or when using inferior ticket stock.
8.2 Logic Board
The printed circuit boards used in this product have been manufactured using surface
mount technology. The printed circuit boards cannot be effectively repaired in the field
and should be returned to the manufacturer if repair is required.
This section describes board removal and proper installation.
ALL SERVICES SHOULD BE DONE WITH POWER OFF AND THE AC CORD
UNPLUGGED FROM THE PRINTER.
8.2.1 Main Logic Board (Removal)
1. Unplug connectors going to the main logic board.
2. Remove 2 nuts that secure the heat sink to the cabinet.
3. Use a screwdriver to gently wedge the logic board from the fasteners.
4. Lift board and remove.
8.2.2 Main Logic Board (Installation)
1. Align Main Logic Board so that the four mounting holes are above the four fasteners
and the heat sink bracket aligns with it's studs.
2. Press logic board down onto the stainless steel fasteners.
3. Attach connectors going to the main logic board.
8.3 General Cleaning
The interior of the printer should be cleaned whenever this is a visible accumulation of
dust. Use a small vacuum for cleaning. Be careful not to jar any of the printer’s parts
loose.
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