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Phenomenon
I.
Does
not draw
lines
2.
Lateral
lines
cannot be drawn
Condition
X·motor
(2-1), Y-motor
(3-1
)
,
and
pen
drive
electro-
magnet
(4-1)
operate
normally, but no
printing
is
done.
(I)
X·motor
(2-1) does not
rotate.
(2)
Abnom1ality
is
noticed
regardless of whether
the
pen
is moving
up
or
down.
~use
Pens
(5 -1
to 4)
have
come
off,
or the
ink
is exhau.sted.
(I)
X-motor
lead
wire
is
cut.
(2)
Idle gear
(2·2)
is defor-
med.
(3) Deformation
of
bobbin
gear unit
(2-3),
mis-
alignment
of
!WO-piece
teeth.
(4) Foreign matter
has
accumulated between
gears.
(5)
Low
battery voltage.
(6)
Slider
unit (4-5)
does
not
slide
properly on
shaft.
(1) Foreign matter
has ac-
cumulated in
the
mov-
ing section of
the slider
unit.
(2)
Contact
between
pen
take-out
lever unit (6-1)
and
pen.
Level
Location
and Method
of Checking
A
Are
the
pens
mounted
pro-
perly?
Do
the pens
have
enough
ink?
B
Check
that a normal current
is
impressed
to
each
phase of
the
motor.
B
Check if
the
X
id.
l
e
gear is
normal.
B
Dismount
wire unit (2-4),
rotate bobbin gear by
hand,
and check rotation
state.
A
Rotate bobbin
and
unit by
hand and
check for
foreign
matter.
A
Check
if
battery voltage is
be.
l ow
4.5V.
B
Dismount
wire and
move
slider
unit to the
right and
left by
hand.
A
Check that
slider
unit moves
smoothly
on
the
effective
printing area 311d
c heck
for
an
abnormal
load by slov.1y
rotating
the bobbin gur by
hand.
B
Check
contact between
pen
take-out
lever and
slider
unit
.
Repair Method
Mount
properly.
Replace the
pens.
Replace
X-motor.
Replae·
e
the X
idle
gear.
Replace
bobbin
gear
unit.
Remove
foreign
matter.
Recharge
to
regular
voltage.
•
Replace
slide
unit.
•
Remove foreign
matt
er
if
it
is
obstruct
ing
movement.
Remove any
foreign matter
Replace
pen
take-out
I.ever.
)>
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