Gestetner B147, Service Manual

Page: 203 / 1081

PROCESS CONTROL ERROR CONDITIONS
SM 4-1 B147/B149/B190
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. If the result is the
same, reinstall the engine
main firmware.
When done at unit
replacement:
•
Check if a new unit is
installed
•
Check if the unit detection
system is working
•
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. If the result is the
same, reinstall the engine
main firmware.
When done at unit
replacement, turn the main
switch off and on.
3
Vt error Vt is less than 0.5V
and “Reset
development unit”
is displayed. 1. Check if the drum stay is properly set and secured.
2. Check if the development unit is properly set.
3. If the problem is still the same, check the following:
• Poor connection of connectors
•
TD sensor defective
•
Harness damage
•
BCU board failure
•
Firmware problem (engine main or MUSIC)