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Phenomenon
8. Y-direction
movement is
insufficient.
Condition
(
2)
Paper
and
rubber roller
slip.
(I) Character
alignment
o
n
one
line is
bad,
and
the
line
rises at
the
right end.
(2)
Stepping error in
Y-direction.
Cause
Level
(1)
Damage
to
paper
hold-
A
ing
roller (large)
(3-6)
and
paper
holding roller
(small)
(3-7).
(2)
Defonnation of paper
c
guide.
(3) Foreign
matter
in
paper
A
guide.
(
I
) Roll
paper
load
is
too
A
heavy.
(1)
Y
drive mechanism gear
B
is damaged
.
( 2)
Sliding paper
feed
gear,
A
by one tooth,
gear
ing
of rubber roller unit is
not enough.
(3)
Rubber roller unit
B
bearing
is
worn.
(
4) Low
battery voltage.
A
Location
and
Method
of
Checking
Check if paper holding
roller
is
there.
Check for paper
guide
defonnation.
Check
for foreign matter
in
paper
guide
and
for
inscr-
tion
of
paper.
Check
that roll
paper
is
guided
smoothly into
the
printer.
Check
Y
idle gear
(3-2),
rubber
roller unit
(3-3)
gear,
and
Y motor unit
(3·
I
)
gear.
Check that
the
two-piece
tooth
gear
on
rubber
roller
unit is
engaging after being
slid by
one
too
th
.
Move rubber roller
unit
gear
up and down
by
h
and and
check for play
.
Check
if battery
voltage is
below
4.5V.
Repair
Method
Replace damaged rolle1.
Replace paper
guide.
Remove
foreign
matter.
Repair roll
paper
guide.
Replace
gears.
Mount
after
setting
it
properly
.
•
Replace
rubber roller unit
if
wear
is noticed.
•
Fix
by
using a
cyano-
acrylate adhesive
when
there
is
play between
the
bearing and frame.
•
Replace printer.
Recharge
to regular
voltage.
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