Confidential
1-15
Error code 3B
Print Unable 3B
Turn the power off and then back on again.
Main PCB RAM failure
Step Cause
Remedy
1 Main PCB failure Replace the main PCB ASSY.
Error code 3D
Print Unable 3D
Turn the power off and then back on again.
Main PCB failure (Any of the PCBs is judged to be failure by the PCB checker, or it is not tested
with the checker.)
Step Cause
Remedy
1 Main PCB failure Replace the main PCB ASSY.
2 Engine PCB failure Replace the engine PCB ASSY.
Error code 3F
Print Unable 3F
Turn the power off and then back on again.
Writing error into engine firmware
Step Cause
Remedy
1 The machine is turned off
while rewriting the data into
the engine firmware.
Turn the power on. Resend the engine firmware
(DJF format) with the USB memory while the error
code is being indicated.
Error code 56
Cover is Open
Close the Back Cover.
Back cover opened
User Check
- Check if the back cover is closed correcty.
Step Cause
Remedy
1 Back cover switch failure Check the sensor performance following the
procedure described in “Maintenance mode 32”.
2 Harness connection failure of
back cover switch ASSY
Check the harness connection of the back cover
switch ASSY and reconnect it.
3
The boss pressing back cover
switch is broken.
Replace the back cover ASSY.
4 Engine PCB failure Replace the engine PCB ASSY.
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