Operator`s manual

Table 7–1 (Cont.): Possible Mechanical Problems and Remedies
Observed Problem Probable Cause and Remedies
Light printing. Ribbon worn; install new ribbon cartridge.
Set paper gap adjuster and/or paper
tension adjust lever for smaller gap.
Ribbon droops on one side during
printing or outer columns of
print missing.
Ribbon cartridge improperly installed.
Check installation by repeating ribbon
cartridge installation procedure in Chapter
6.
Print module too close to paper; reset paper
tension adjust lever to 1 (maximum gap
setting) for thicker paper to prevent drag
(6 setting = minimum gap setting).
Paper does not feed properly. Paper supply in lower compartment not
aligned properly. Realign. Paper not
loaded properly. Refer to ‘‘Load Paper’’
procedure in Chapter 6.
Elongation of paper pin feed
holes, tractor disengagement
from holes, paper tearing.
Excessive paper tension. Reduce tension by
readjusting paper tension adjust lever to
lower setting (1=maximum/6=minimum).
Weak or absent printing in some
columns, degraded print quality
in one decimeter (4.3 inch) wide
zone of the print area. Display is
[ A c 1], [ A c 2], or [ A c 3].
Defective print actuator module. Call
a service engineer to replace module.
Ensure that ribbon cable connections to
modules are tight. If problem remains and
is localized in the same print zone, the
cable or SHAD board may be defective.
Call for service. The printer may be used,
if light or missing dots can be tolerated.
[LoP]
Low Paper
[ L P P] Low Paper Printing. Permits printing after
Low Paper is detected (see ‘‘Low Paper
Printing’’ procedure in Chapter 6).
TEST CLR key must be pressed momentarily after fault is cleared to reset from fault
condition. Audio tone sounds with these flashing fault displays.
OPERATOR MAINTENANCE 7–3