Specifications
REV.-B
Table 5-5. Repair of the PRINTER MECHANISM (Cont.)
I
Problem
Symptom
Cause
Checkpoint
Solution
The ribbon feed is
The ribbon is not
The ribbon
car-
Dismount the
rib-
Replace the ribbon
abnormal. fed.
tridge is defective.
bon cartridge,
ro-
cartridge.
tate its knob manu-
ally, and check
whether the ribbon
feeds normally.
Foreign substances
Check whether the
-
Remove any
for-
are caught in the
ribbon driving gear eign substance.
gears.
rotates when the
*
Replace the
rib-
carriage is moved
bon-feed
manually.
mechanism.
The ribbon feeds The planetary lever
Move the carriage Replace the ribbon
properly only when is defective. manually, and
cartridge.
the carriage moves
check whether the
in one direction planetary lever
(i.e., it fails to feed
turns in reverse
when the carriage and engages the
moves in the other
gear.
direction).
Paper becomes
stained.
Ink stains appear
on areas where
there is printing.
The RIBBON MASK
Check whether the
Reinstall the
RIB-
is not correctly
RIBBON MASK is in
BON MASK.
positioned.
the correct
position.
The platen gap is Set the gap adjust
Adjust the gap.
not adjusted.
lever to the second
Refer to Section
position, and check
4.1.2, Platen Gap
the gap between
Adjustment.
the tip of the
print-
head and the
PLATEN.
The appropriate
value is 0.46 mm.
Printing continues
Printing continues
The DETECTOR
Check the
DETEC-
Replace the
DE-
after the paper
past the paper ASSY., PE. FRONT
TOR ASSY., PE,
TECTOR ASSY., PE,
ends or when no
end.
WEAR)
FRONT
(,REAR)
FRONT
(,REAR)
paper is loaded.
5-19