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Chapter 1 Troubleshooting
FIP3.14 Sensor Full Stack (On PWBA OCT)
Step Check
Yes
No
Possible causes:
Sensor Full Stack (Mounted on PWBA OCT)
ACTUATOR FULL STACK (PL23.1.15)
PWBA OCT (PL23.1.22)
HARNESS ASSY OCT2 (PL23.1.25)
HVPS/MCU (PL12.1.19)
HARNESS ASSY OCT1 (PL12.1.26)
1
Checking ACTUATOR FULL STACK for operation
Remove Option OCT. (RRP23.1)
Move ACTUATOR FULL STACK with a finger.
Does ACTUATOR FULL STACK operate smoothly?
Does the flag go into the sensor detecting point when
there is no paper, and out of the detecting point when
the paper is set?
With tool Go to
step 2. Without
tool Go to step 3.
Replace ACTUA-
TOR FULL STACK.
2
Checking Sensor Full Stack mounted on PWBA OCT
(1)
Remove EP CARTRIDGE.
Install Option OCT. (RRP23.1)
Move ACTUATOR FULL STACK up and down.
Does the number increase one by one, every time
ACTUATOR FULL STACK operates?
Check using Chapter 2 Diagnostic [Sensor/Switch
Check].
Replace HVPS/
MCU.
(RRP12.10)
Go to step 3.
3
Checking HARNESS ASSY OCT2 for continuity
Disconnect P/J70 from PWBA OCT.
Remove HARNESS ASSY OCT2.
Is there continuity between J70 and J3070?
Go to step 4.
Replace HAR-
NESS ASSY
OCT2.
4
Checking HARNESS ASSY OCT1 for continuity
Remove HARNESS ASSY OCT1.
Is there continuity between J30 and J3070?
Go to step 5.
Replace HAR-
NESS ASSY
OCT1.
5
Checking Sensor Full Stack mounted on PWBA OCT
(2)
Replace PWBA OCT. (RRP23.7)
Is the problem cleared?
End of work
Replace HVPS/
MCU. (RRP12.10)