IV - 2
4.3 TROUBLESHOOTING FLOWS
[ 1 ] Printing is performed with specific dots omitted.
N
N
Y
Y
Printing is performed with
specific dots omitted.
Y
Y
NN
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
1.2kgf 5% at the
roller center?
The thermal head is defective.
Replace the thermal head ASSY.
Replace the platen ASSY.
Y
N
Is the head plate spring
attached correctly?
Attach the head plate spring
in correct way.
Is the head spring
attached correctly?
Attach the head spring
in correct way.
Replace the head spring.