Service manual

PROCESS CONTROL ERROR CONDITIONS
SM 4-1 G130/G131
Trouble-
shooting
4. TROUBLESHOOTING
4.1 PROCESS CONTROL ERROR CONDITIONS
4.1.1 DEVELOPER INITIALIZATION RESULT
SP-3-005-006 (Developer Initialization Result)
No. Result Description Possible Causes Action
0
Not
performed
Developer
initialization is not
performed.
When initializing only
the black developer, the
initialization result
becomes “1000”.
When done in SP mode, do
the developer initialization
again. Reinstall the engine
main firmware if the result is
the same.
Do the following when done at
unit replacement:
• Check if a new unit is
installed
• Check if the unit detection
system works correctly
• Check if SP2-223-001 (auto
initialization at unit
replacement) is enabled.
1
Successfully
completed
Developer
initialization is
successfully
completed.
-
2
Forced
termination
Developer
initialization was
forcibly terminated.
A cover was opened or
the main switch was
turned off during the
initialization.
When done in SP mode, do
the developer initialization
again. Reinstall the engine
main firmware if the result is
the same.
Turn the main switch off and
on when done at unit
replacement.
3
Vt error Vt is less than 0.5V
and “Reset
development unit”
is displayed.
1. Check if the drum stay is correctly set and secured.
2. Check if the development unit is correctly set.
3. Check the following if the problem stays:
• Poor connection of connectors
• TD sensor defective
• Harness damage
• BCU board failure
• Firmware problem (engine main or MUSIC)