Fip4.9 Sensor Low Paper - Oki B6500 Troubleshooting Manual

FIP4.9 SENSOR LOW PAPER

Step
Possible causes:
SENSOR LOW PAPER (PL20.1.30)
ACTUATOR LOW PAPER (PL20.1.31)
HARNESS LOW PAPER (PL20.1.33)
HARNESS ASSY FDR2 (PL20.1.5)
Option 550 Paper Feeder 550 PAPER CASSETTE
PWBA FEEDER 550 (PL20.1.34)
PLATE ASSY BTM (PL20.3.10)
HVPS/MCU (PL12.1.19)
Checking ACTUATOR LOW PAPER
Remove Option 550 Paper Feeder. (RRP20.1)
Install 550 PAPER CASSETTE.
Move PLATE ASSY BTM up and down.
1 Does ACTUATOR LOW PAPER operate smoothly?
Does the flag go into the detecting area of the sensor
when PLATE ASSY BTM is up state (ACTUATOR LOW
PAPER is pushed up), and out of the detecting area
when PLATE ASSY BTM is pressed down?
Checking SENSOR LOW PAPER (1)
Install Option 550 Paper Feeder. (RRP20.1)
Remove EP CARTRIDGE.
Close COVER OPEN (PL1.1.2).
Remove 550 PAPER CASSETTE.
2 Put the hand in the cassette insertion space, move
ACTUATOR LOW PAPER.
Does the number increase one by one, as ACTUATOR
LOW PAPER operate?
Check using Chapter 2 Diagnostic [Sensor/Switch
Check].
Checking SENSOR LOW PAPER (2)
Install Option 550 Paper Feeder. (RRP20.1)
Remove EP CARTRIDGE.
Close COVER OPEN (PL1.1.2).
Remove 550 PAPER CASSETTE.
3
Put the hand in the cassette insertion space, move
ACTUATOR LOW PAPER.
Is the voltage across P/J81-3(+) and P/J81-2(-), 3.3
VDC when ACTUATOR LOW PAPER is held up, and 0
VDC when released?
Checking HARNESS LOW PAPER for continuity
Install Option 550 Paper Feeder. (RRP7.1)
4 Disconnect the connector of SENSOR LOW PAPER.
Disconnect P/J81 from PWBA FEEDER 550.
Is there continuity between J81 and J810?
Checking HVPS/MCU for continuity
5 Disconnect P/J11 and P/J20 from HVPS/MCU.
Is there continuity between P11-16 and P20-5?
Checking SENSOR LOW PAPER (3)
6 Replace SENSOR LOW PAPER. (RRP20. 7)
Does the problem still occur, after replacement?
Check
1 – 107
Chapter 1 Troubleshooting
Yes
With tool Go to
Replace ACTUA-
step 2. Without
TOR LOW PAPER.
tool Go to step 3.
Replace HVPS/
MCU. Go to step 3.
(RRP12.10)
Go to FIP4.6, 4.7
PWBA FEEDER Go to step 4.
550.
Replace HAR-
Go to step 5. NESS LOW
Replace HVPS/
Go to step 6.
MCU. (RRP12.10)
Replace HVPS/
MCU. End of work
(RRP12.10)
No
PAPER.