IV- 3
4.4 TROUBLESHOOTING
FLOWS
[ 1 ] Printing is performed with specific dots omitted.
N
N
Y
Y
Printing
is
performed
with
specific
dots
omitted.
Y
Y
N
N
Are
the
thermal
head
and
the
platen
dirty?
The
thermal
head
and
the
platen
are
dirty.
Clean
the
thermal
head
and
the
platen.
Is
the
platen
rubber
deformed?
Is
the
head
pressure
3.0kg
10%
at
the
roller
center?
The
thermal
head
is
defective.
Replace
the
thermal
head
ASSY.
Replace
the
platen
ASSY.
Is
the
head
spring
attached
correctly?
Attach
the
head
spring
in
correct
way.
Replace
the
head
spring.