POSIFLEX Business Machines PP7700 Series - Manual (Page 10)

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Do not use thermal paper containing Sodium (Na+),
Potassium (K+) and Chlorine (Cl-) ions that can harm
the print head thermal elements.
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Use only water paste, starch paste, polyvinyl paste or
CMC paste when gluing thermal paper.
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Use of volatile organic solvents such as alcohol, ester
and ketone on thermal paper can cause discoloration.
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Some adhesive tapes on thermal paper may cause
discoloration or faded printing.
•
Use only products made from polyethylene,
polypropylene or polyester for storage of thermal paper.
If thermal paper touches anything includes phthalic acid
ester plasticizer for a long time, the image formation
ability may be reduced or the printed image may fade.
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If thermal paper touches diazzo copy paper immediately
after copying, the printed surface may be discolored.
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Thermal paper must not be stored with the printed
surfaces against each other as the printing may be
transferred between the surfaces.
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If the surface of thermal paper is scratched with a hard
object such as a nail, the paper may become discolored.
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Store thermal paper away from high temperature and
humidity. Avoid extended exposure to direct light.
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Do not set any liquid or drinks such as coffee on the
printer case