Texas Instruments 880 User Manual page 77

B.1 TEMPERATURE
The operating temperature range of the Model 880
Printer is from 41° to 104° F (5° to 40° C). The
non-operating temperature range is from
_22°
to
158° F (-30°
to
70°
C).
CAUTION
The Model 880 Printer is cooled by
an internal cooling fan which pulls
air from the right side vent of the
printer and pushes air out the vent
on the left side. Make sure that
these vents are not obstructed.
B.2 CLEANING
For best performance, the printhead and ribbon
area of the Model 880 Printer should be cleaned at
least every 3 months. Clean whenever noticeable
dust appears on the printhead tip or carriage rods.
WARNING
Set the printer ON/OFF switch to
the OFF position to avoid electrical
shock hazards.
Appendix B
Maintenance
1 . Remove the power cable from the power
receptacle.
2. Lift the printhead cover.
3.
Carefully vacuum paper chaff from the
printhead and ribbon areas.
4. Manually slide the carriage to the left and
to the right in order to vacuum beneath
the printhead.
5. Clean both carriage rods with a clean dry
cloth.
CAUTION
DO NOT use cleaning agents on the
Model 880 Printer, or oil the car-
riage rods.
6. Connect the power cable.
7. Close the printhead cover and set the
ON/OFF switch to the ON position.
B-1