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Chapter 3 Troubleshooting
009-350 IBT HOME SENSOR FAILURE
Description
The HOME detection signal was output from the
IBT HOME SENSOR before the IBT BELT completes
revolving 1 cycle.
BSD on : CH9.19 CH9.31A
Procedure
Check the following:
• The detection position for paper strips or metal strips
• Between the IBT HOME SENSOR and I/F PWB for an
open circuit and poor contact
• The HVPS for leakage
• Check that the voltage of the IBT HOME SENSOR J121-3
is stabilized at +5 VDC.
• Check conductivity of the following:
Between the IBT HOME SENSOR J121-2 and I/F PWB
A13
If no problems are found, replace the IBT HOME SENSOR.
(PL5.4)
If the problem persists, replace the MCU PWB. (PL13.1)
If the problem persists, replace the I/F PWB. (PL9.1)
009-351 DRIVE LOGIC FAILURE
Description
Operation failure of the IBT BELT
BSD on : CH9.31A
Procedure
Is the Actuator of the IBT EDGE SENSOR touching the BELT?
Y
N
Check the installation status of the Actuator.
Turn the power On. Is +3 VDC to +1 VDC measured between
the I/F PWB J533-A11 (+) and GND (-)?
Y
N
Is +5 VDC measured between the I/F PWB J533-A9 (+)
and J533-A10 (-)?
Y
N
Close the Front Door. If the voltage between the
J533-A9 (+) and the J533-A10 (-) is less than +5
VDC, replace the MCU PWB. (PL13.1)
Is +5 VDC measured between the I/F PWB J533-A11 (+)
and GND (-)?
Y
N
Is 0 VDC measured between the I/F PWB J533-A11
(+) and GND (-)?
Y
N
Check the wire between the I/F PWB J533 and
the IBT EDGE SENSOR J119 for an open
circuit and poor contact. If no problems are
found, replace the IBT EDGE SENSOR
(PL5.4). If the problem persists, replace the
MCU PWB. (PL13.1)
Check the wire between the I/F PWB J533-A11 and
the IBT EDGE SENSOR J119-2 for an open circuit or
poor contact.
Replace the IBT EDGE SENSOR. (PL5.4)
Is +24 VDC measured between the I/F PWB J550-5 (+) and
GND (-)?
Y
N
Check the +24 VDC circuit to the I/F PWB J550-5 by
referring to Chapter 4 Wiring Data.
(WN4.3.13 +24 VDC-1) (WN4.3.14 +24 VDC-2)
(WN4.3.15 +24 VDC-3) (WN4.3.16 +24 VDC-4)
Remove the IBT ASSY and run
DC330
[004-001].
Is the IBT STEERING MOTOR rotating?
Y
N
Check the wire between the I/F PWB J550 and the IBT
STEERING MOTOR J207 for an open circuit and poor
contact.
Is the open circuit or poor contact found?
Y
N
Replace the MCU PWB (PL13.1). If the problem
persists, replace the I/F PWB (PL9.1) and the IBT
STEERING MOTOR. (PL1.3)
Repair the open circuit or poor contact.
Check the installation status of the IBT BELT. If no problems
are found, replace the MCU PWB. (PL13.1)
009-358 FULL TONER SENSOR FAILURE
Description
FULL TONER SENSOR failure
BSD on : CH9.29 CH9.31E
Procedure
Remove the FULL TONER SENSOR from the bottle and run
DC330
[009-150].
Turn the FULL TONER SENSOR On/Off using a sheet of
paper.
Is the display switched between H and L?
Y
N
Repair the FULL TONER SENSOR using Generic
Permeable Sensor Failure FIP. (PL4.1)
Check for paper with toner contamination and foreign
substance. If no problems are found, replace the MCU PWB.
(PL13.1)
009-360 DRUM COMMUNICATION FAILURE (Y)
Description
A communication failure with the DRUM was
detected.
BSD on : CH9.3 CH9.31B
Procedure
Run
DC330
[009-151].
Is H displayed?
Y
N
Check the installation status of the DRUM and the wire
between the DRUM (Y) J151 and the MCU PWB J405 for
an open circuit and poor contact. If no problems are found,
replace the DRUM (Y). (PL4.1)
Summary of Contents for Workio DP-C401
Page 4: ...This page is intentionally left blank ...
Page 5: ...Chapter 1 General ...
Page 22: ...1 16 Chapter 1 General 1 3 Type of Paper ...
Page 23: ...1 17 Chapter 1 General ...
Page 24: ...Chapter 2 Maintenance ...
Page 63: ...Chapter 3 Troubleshooting ...
Page 118: ...3 44 Chapter 3 Troubleshooting I F PWB PL9 1 MCU PWB PL13 1 ...
Page 445: ...Chapter 4 Parts List ...
Page 548: ......