ELECTRONIC PRINTER OPERATION
The paper used by the electronic printer is a heat-sensitive (thermal) paper
(Texas Instruments TP-20225 or TP-27225). The only mechanical part of the
printer is a precision stepper motor which advances the paper past the
electronic printhead that is stationary. When printing, small semiconductor
(solid-state) elements are heated very quickly by electronic circuits and
produce color spots on the thermal paper. These spots form the numbers
and symbols you can read on the thermal paper.
Since the printer is basically an electronic device, it
does
not
require special
ink ribbons or special maintenance. Using metal probes, sharp objects
or
lubricants may damage
the
printhead or rubber roller. Please refer to
Service Information section of this manual for paper replacement
instructions and actions to take if a difficulty occurs.
NOTICE
THE PRINTING ON THERMAL PAPER MAY FADE IF
EXPOSED TO LIGHT OR HIGH TEMPERATURES FOR
LONG PERIODS OF TIME. FOR PERMANENT
STORAGE,
Al
'NAYS
FILE PRINTED TAPES AWAY
FROM LIGHT AND
HEAT.
2
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