Cause/Detective section
Procedures
Result
CountermeasureItems to be checked
I/F PCB Unit
1
Is the cause cleared by replacing the
I/F set PCB Unit ?
YES Finish.
Online code
2
Is the cause cleared by replacing the
online code ?
YES Finish.
IPC I/F PCB Unit
3
Is the cause cleared by replacing the
IPC I/F PCB Unit ?
YES
Finish.
P-memory PCB Unit
4
Is the cause cleared by replacing the P-
memory PCB Unit ?
YES Finish.
Main PCB Unit
NO
Check the bundled wire between the I/F
PCB unit CN4 and the P-memory PCB
CN3. If OK, replace the main PCB unit.
In platemaking, measure the voltage
between the regulated
power supply, +S
(+24) and -S(GND) with the tester. Is it
+24V?
Cause/Detective section
Procedures
Result
CountermeasureItems to be checked
Thermal head
1
Disconnect all the thermal head
connectors, and cheked using
HELP03*
( Thermal head power source).
Is the voltage 16-18V approx.?
Is the voltage 24V approx.?
DP-430/330 :
DP-440/340 :
YES
Chech the bundled wire and connector.
If OK, replace the thermal head.
DC-DC PCB Unit
2
YES
Chech the bundled wire and connector.
If OK, replace the DC-DC PCB Unit.
Regulated power supply
NO
Replace the regulated power supply.