Minolta Magicolor 3100 Series Service Manual page 68

FIP-28 BTR Life Over (Replace Transfer Unit)
Step
Initial check
Check the following for damage.
1
Transfer Unit (BTR) condition
SENSOR TONER FULL condition
Check SENSOR TONER FULL
Does SENSOR TONER FULL function normally?
2
Using SENSOR TONER FULL diagnostic tool, check by
Diagnostic Input Test.
Check HARNESS ASSY TFLSNS for signal
3 Remove the Transfer Unit (BTR)
Is P/J141-2PIN <=> P/J141-1PIN 0VDC?
Check HARNESS ASSY TFLSNS for signal
4
Is P/J141-3PIN <=> P/J141-1PIN +5VDC?
Check HARNESS ASSY TFLSNS for continuity
5
J142 <=> J142 check continuous?
Check Transfer Unit (BTR)
6 Replace new Transfer Unit (BTR), and check if an error
occurs
1-68
Check
Yes
With tool
Replace the parts Go to step [2]
concerned Without tool
Go to step [3]
Go to step [6] Go to step [3]
Go to step [6] Go to step [4]
Replace
Go to step [5] HARNESS ASSY
EEPROM
Replace
Replace SENSOR
HARNESS ASSY
TONER FULL
TFLSNS
Replace PWBA
End of work
HNB MCU
No