Troubleshooting Flows; 1 ] Printing Is Performed With Specific Dots Omitted - Brother TD-2020 Service Manual

4.3 TROUBLESHOOTING FLOWS

[ 1 ] Printing is performed with specific dots omitted.

Printing is performed with
specific dots omitted.
Are the thermal head
and the platen dirty?
Is the platen rubber
deformed?
Is the head plate spring
attached correctly?
Is the head pressure
1.2kgf 5% at the
roller center?
The thermal head is defective.
Replace the thermal head ASSY.
Y
N
Y
N
N
Y
N
Y
The thermal head and the platen
are dirty.
Clean the thermal head and
the platen.
Replace the platen ASSY.
Attach the head plate spring
in correct way.
Is the head spring
attached correctly?
Y
Replace the head spring.
IV - 2
N
Attach the head spring
in correct way.