1 – 52
Chapter 1 Troubleshooting
FIP1.31 SENSOR TONER
Step Check
Yes
No
Possible causes:
SENSOR TONER (PL5.1.46)
SENSOR TONER ASSY (PL5.1.45)
HARNESS ASSY TONER1 (PL5.1.50)
HARNESS ASSY TONER2 (PL12.1.28)
EP CARTRIDGE HVPS/MCU (PL12.1.19)
1
Checking EP CARTRIDGE (1)
Does sufficient toner in EP CARTRIDGE remain?
Go to step 3.
Go to step 2.
2
Checking EP CARTRIDGE (2)
Does the problem still occur, after replacing EP CAR-
TRIDGE?
Go to step 3.
End of work
3
Checking SENSOR TONER ASSY installation
Is SENSOR TONER ASSY installed correctly, and does
HOLDER-D operate smoothly?
Go to step 4.
Replace SENSOR
TONER ASSY.
4
Checking HARNESS ASSY TONER1 for continuity
Remove HARNESS ASSY TONER1.
Is there continuity between J220 and J221?
Go to step 5.
Replace HAR-
NESS ASSY
TONER1.
5
Checking HARNESS ASSY TONER2 for continuity
Remove HARNESS ASSY TONER2.
Is there continuity between J22 and J221?
Go to step 6.
Replace HAR-
NESS ASSY
TONER2.
6
Checking SENSOR TONER
Replace SENSOR TONER. (RRP5.9)
Does the problem still occur, after replacement?
Replace HVPS/
MCU.
(RRP12.10)
End of work