Defective Interface Operation - Star Micronics LC-1011C Technical Manual

4-5. Defective Interface Operation

START
Press on line switch to
take on line.
Send print program
from host computer.
Is I/F
signal normal? *8
YES
Incorrect print
generated?
NO
Check operation
END
*8 See (9) waveform in
item 9 of Chapter 7.
NO
YES
– 59 –
TROUBLESHOOTING
Check I/F cable.
Check and replace
1) Gate array
2) CPU