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PRN608-S
28-03-2003 Page 2-15 of 53
Electrolytic corrosion may significantly shorten the life of the thermal
head. Thermal paper ordinarily contains electrolytic material to prevent
sheets from sticking to each other due to static electricity. If there is too
much of this electrolytic material, high temperatures and humidity cause
the material to ionise, resulting in electrolytic corrosion of the thermal
head.
The PRN608-S turns the FET off and breaks the Vhead applied to the
thermal head during waiting status to prevent electrolysis corrosion of
the thermal head.