Oki B6500

1 – 67
Chapter 1 Troubleshooting
FIP1.45 SENSOR FULL STACK
Step Check Yes No
Possible causes:
SENSOR FULL STACK (PL10.1.26)
ACTUATOR FULL STACK (PL10.1.10)
HARNESS ASSY EXIT SNR (PL10.1.27)
HVPS/MCU (PL12.1.19)
1
Checking ACTUATOR FULL STACK
Open COVER ASSY REAR 500.
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 low paper, and out of the detecting point when
full?
With tool Go to
step 2. Without
tool Go to step 3.
Replace ACTUA-
TOR FULL STACK.
2
Checking SENSOR FULL STACK (1)
Remove EP CARTRIDGE.
Close COVER ASSY REAR 500.
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 EXIT SNR for continuity
Remove 500 EXIT ASSY (PL10.1.2) (RRP10.2)
Remove HARNESS ASSY EXIT SNR.
Is there continuity between
J29-1 and J290-3?
J29-2 and J290-2?
J29-3 and J290-1?
Go to step 4.
Replace HAR-
NESS ASSY EXIT
SNR.
4
Checking SENSOR FULL STACK (2)
Replace SENSOR FULL STACK. (RRP10.7)
Is the problem cleared?
End of work
Replace HVPS/
MCU. (RRP12.10)