CAB Apollo 4, Operator'S Manual, Page: 108 / 118

D-2 cab - Produkttechnik GmbH / Tharo Systems, Inc.
Cleaning the Printhead
While operating, dirt such as paper dust or particles of ink or back coating from
the ribbon may accumulate on the thermal printhead.
This can cause a deterioriation of the print quality. (e.g. different contrasts on
the label, appearance of light horizontal lines, etc.)
In that case, the printhead needs cleaning.
Recommended cleaning intervalls :
Direct Thermal Printing : at every 1,300 yd or 1,200 m
Thermal Transfer Printing : each time you change the ribbon
Do not use any sharp objects for cleaning the printhead !
Do not touch the protective glass layer of the printhead !
Clean the printhead as follows :
1. Lift the printhead.
2. Remove label material and transfer ribbon from the printer.
3. Clean the printhead surface with a special cleaning pen, or use a cotton
swab soaked with isopropyl alcohol.
4. Allow it to dry for about 2 to 3 minutes before restarting the printer.
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