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FIP1.29 SENSOR LOW PAPER (PL7.1.4)
Step Check
Yes
No
Possible Causative Parts:
SENSOR LOW PAPER (PL7.1.4)
ACTUATOR LOW PAPER (PL7.1.5)
PLATE ASSY BTM (PL4.1.10)
HARNESS ASSY LOW1 (PL7.1.2)
LVPS (PL12.1.5)
HVPS/MCU (PL12.1.19)
SENSOR LOW PAPER (PL7.1.4)
ACTUATOR LOW PAPER (PL7.1.5)
PLATE ASSY BTM (PL4.1.10)
HARNESS ASSY LOW1 (PL7.1.2)
LVPS (PL12.1.5)
HVPS/MCU (PL12.1.19)
1
Checking ACTUATOR LOW PAPER for operation
Install Paper Cassette.
Does ACTUATOR LOW PAPER operate smoothly,
when PLATE ASSY BTP is pushed and released by the
hand?
Does the flag go into the detection point of the sensor,
when PLATE ASSY BTM is released (Actuator is
pushed up), and out of the detection point, when
pushed down?
Install Paper Cassette.
Does ACTUATOR LOW PAPER operate smoothly,
when PLATE ASSY BTP is pushed and released by the
hand?
Does the flag go into the detection point of the sensor,
when PLATE ASSY BTM is released (Actuator is
pushed up), and out of the detection point, when
pushed down?
With tool Go to
step 2. Without
tool Go to step 3.
Replace ACTUA-
TOR LOW PAPER.
2
Checking SENSOR LOW PAPER for operation (1)
Remove TONER CARTRIDGE.
Close COVER OPEN (PL1.1.2).
Remove Paper Cassette.
Put the hand in the tray insertion space, move ACTUA-
TOR LOW PAPER.
Does the number increase one by one, as ACTUATOR
LOW PAPER moves?
Execute Diagnostic [Output Test /Sensor Test].
Remove TONER CARTRIDGE.
Close COVER OPEN (PL1.1.2).
Remove Paper Cassette.
Put the hand in the tray insertion space, move ACTUA-
TOR LOW PAPER.
Does the number increase one by one, as ACTUATOR
LOW PAPER moves?
Execute Diagnostic [Output Test /Sensor Test].
Replace HDVS/
MCU. (RRP9.10)
Go to step 3.
3
Checking HARNESS ASSY LOW1 for continuity
Remove HARNESS ASSY LOW1.
Is there continuity between J260 and J26?
Remove HARNESS ASSY LOW1.
Is there continuity between J260 and J26?
Go to step 4.
Replace HAR-
NESS ASSY
LOW1.
4
Checking SENSOR LOW PAPER (2)
Replace SENSOR LOW PAPER. (RRP5.9)
Does the problem still occur, after replacement?
Replace SENSOR LOW PAPER. (RRP5.9)
Does the problem still occur, after replacement?
Replace HDVS/
MCU. (RRP9.10)
End of work