Sam4s ER-650 Series Service Manual page 61

8-5 Thermal Printer Problem
Thermal Printer
Problem
Control Signal
Ok?
Y
Power Vcc
V Ok?
H
Y
Sensor
OK?
Y
Feed Motor
OK?
Y
Printer Work
OK?
Y
End
SAM4S ER-650 SERIES
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N
1. Check the Control Signal on CPU
(Data/CLK/Latch/Strobe1,Strobe4)
2. Check the Harness.
3. Check the related Circuit and Pattern.
N
1. Refer to the Power Problem.
2. Check the Harness.
N
1. Check the related Circuit and Pattern(IC LM393).
2. Check the Harness.
3. Check the Sensor PBA.
N
1. Check the related Circuit and Pattern(IC LB1838).
2. Check the Harness.
3. Check the Feed Step Motor .
N
1. Replace the Thermal Printer .
8 Trouble Shooting
8-5