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REPAIR
NATURE OF | CONDITION OF! = pBoccigte cause
| CLASSI-
CHECK POINT
REMEDY
TROUBLE
TROUBLE
eee
. Improper
3) Wear or damage of
@ Check the wear or damage (at
@ Repiace the printcam
AtT2
column
print cam
A12 and
each engaging portion}.
and positioning plate Al.
advanc-
positioning plate
5
ing.
Al.
4) Hesting elements are
@ Check the circuit side to be sure | © Modify the circuit side.
not energized (input
that the input puise is applied
pulse is not applied
properly.
properly for the
trigger coil assy 813).
5) Faulty operation of
@ Check the operation of posi-
®@ Modify the positioning
positioning piate.
tioning piate by hand after
plate for the bending of
releasing it.
its spring.
1 Positioning plate is too
© Remove the foreign matters,
weak.
:
Foreign matters are sticking
to the clearance of position-
ing shaft and positioning
plate.
10. Improper | Carriage
A4.
1) Wear of return lever
© Replace the return lever B3.
return,
does not return
B83.
to its original
position.
2) Retum lever spring
e Replace the return lever spring
816 is too weak.
B16.
3) Carriage spring A13
® Visually check from the top of | © Reptace the carriage spring
and print wheel
the printer.
A13.
spring A10 are too
@ Replace the print wheel spring
weak.
A10,
4) Wear of contact
© Repiace the positioning pite
point between the
Al.
cam of positioning
»
plate
Al and
frame.
5) Heating elements are
« Check the circuit side to be sure | @ Modify the circuit side.
not energized. (im-
that the input pulse is applied
put pulse is not
properly.
applied properly for
the trigger coil assy
B13).
6) Fauity operation of
@ Check if the sliding portion
© Clean it with O-3 (Lubricant ).
carriage
Ad.
between carriage A4 and the
print wheel assy A7 is clogged
with foreign matters.
—~24-
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