GEK-99044
Chapter 7 Operator Care and Maintenance
7-11
Mechanical Problems
Use Table 7-5 when problems are experienced with paper feeding and
print quality.
TABLE 7-5
Mechanical Problems
PROBLEM
POSSIBLE CAUSE/CORRECTIVE ACTION
Paper does not feed properly.
!
Paper supply in lower enclosure not aligned
properly.
!
Paper snagging on box. Cut top of box off.
!
Paper not loaded properly. Reload paper and
check tractors for proper adjustment.
Paper tearing, paper “walking” out of
tractors, elongation of paper pin holes.
!
Excessive tension on paper.
!
Readjust paper tension lever, readjust print gap
wheel, check right side upper and lower tractors
for correct lateral paper tension.
Paper jammed.
!
Paper jams are most often caused by incorrect
paper tension (see above) or misaligned tractors
or paper.
1.
Turn the print gap wheel to the
LOAD
position
and physically clear paper jam.
2.
Reload paper, readjust right side tractors, paper
tension, and gap.
3.
Press
CLEAR
pushbutton to print buffered data
and to clear display.
Light printing.
!
Ribbon worn. Install a new ribbon.
!
Paper gap too large. Turn print gap wheel for a
smaller gap.
Ribbon droops on one side during
printing or outer columns of print
missing.
!
Ribbon cartridge improperly installed. Check
installation by repeating installation procedure.
!
Print heads too close to paper. Adjust paper gap
setting for thicker paper.
Weak or absent printing in some
columns, light or missing dots in
adjacent columns, poor print quality in
a narrow zone of the print area.
Bad
Actuator
or
Driver Circuit
may be
displayed.
!
Check for loose cable connection on print head
actuators.
!
Bad Actuator
indicates that an actuator or the
driver circuit controlling that actuator has failed
the printer’s test of the circuit. Try replacing the
actuator.
!
Driver Circuit
is displayed when the printer’s self
test determines that
ALL
of the actuators or wire
drivers are defective.
!
When either of these occur, call for service.
Continue to use printer if light or missing dots
can be tolerated temporarily.