Star Micronics LC-4511 Technical Manual page 63

2
Printing operation
is normal?
YES
Paper feed
operation is
normal?
YES
Ribbon feed
operation is
normal?
YES
Terminates self printing.
Check host computer
connection.
Turn power off and check
I/F cable.
Turn power on.
Send print program from host
computer.
3
NO
drive signal waveform is
Replace printer mechanism.
NO
NO
1) Replace ink ribbon.
2) Replace printer mechanism.
A
*3 See (4),(5) and (6),(7) wave-
Print head
NO
normal? *3
YES
A
*2 See (10),(11) and (12),(13) wave-
Paper feed
NO
motor drive waveform is
normal? *2
Replace printer mechanism.
A
C
– 59 –
TROUBLESHOOTING
form in item 7 of Chapter 7.
1) Replace main logic board.
2) Replace printer mechanism.
form in item 7 of Chapter 7.
NO
1) Replace main logic board.
YES
2) Replace printer mechanism.