Specifications

REV.-B
Table 5-5. ReDair of the PRINTER MECHANISM (Cont.]
I —r
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
o 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).
‘aper becomes
Ink stains appear
The RIBBON MASK
Check whether the Reinstall the
RIB-
;tained. on areas where is not correctly
RIBBON MASK is in BON MASK.
there is pinting.
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.
kinting continues Printing continues The DETECTOR Check the DETEC- Replace the DE-
fter the paper past the paper ASSY., PE, FRONT TOR ASSY., PE, TECTOR ASSY., PE,
mds or when no end. (, REAR)
FRONT (, REAR)
FRONT (, REAR)
Iaper is loaded.
5-19