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Part 12
OPERATION GUIDE
MAINTENANCE GUIDE LINES
• Always turn off and disconnect power before opening the cover.
• The areas around the print head and motor become very hot during and just
after printing, DO NOT touch them.
• When handling the interior of the thermal printer, please pay attention not
to be hurt by any sharp edge of the metal parts.
GENERAL CLEANING
Please use soft hairbrush or compressed air to clear away any dust or
paper scraps accumulation inside the printer. Check also the area of the auto-
cutter regularly.
PRINT HEAD CLEANING
The print head is located underneath the roll paper passage at the exit
as in the picture below. You can clean the thermal elements of the print head
and paper sensor gently using a cotton swab moistened with isopropyl alcohol
solvent.
NOTE: Never do this when print head is still hot
Do not touch the print head thermal elements
Do not scratch the print head
Before putting back the paper roll for printing, alcohol solvent must
be dried completely.
TROUBLE SHOOTING
This section gives solutions to some printer problems you may have.
General Problems
No LED lights up on control panel when switched on –Make sure
that the power supply cables are correctly plugged into the printer, the power
adaptor and to the power outlet. Make sure that power is supplied to the power
outlet. If the outlet is controlled by a switch or timer, try use another outlet
Printing Problems
Nothing can be printed with ERROR LED flashing – Most
Thermal Elements
Paper Sensor