WorkCentre Pro 423/428 2-120 CHAPTER 2 TROUBLESHOOTING
03/02 Level 2 Troubleshooting
HD-03 Hard Disk Failure (BSD 3.1C)
Check between the HDC PWB and HDD for an open wire or
poor contact. If no problem is found, replace the HDD. (PL7.2)
HD-10 Hard Disk Failure (BSD 3.1C)
Check between the HDC PWB and HDD for an open wire or
poor contact. If no problem is found, replace the HDD. (PL7.2)
HD-71 Hard Disk Interface Abnormal (BSD 3.1C)
Check between the HDC PWB and HDD and between the HDC
PWB and MCU/SW PWB for an open wire or poor contact. If no
problem is found, replace the HDD (PL7.2), HDC PWB(PL7.2),
and MCU/SW PWB(PL7.2) in this order.
HD-72 Hard Disk Interface Abnormal (BSD 3.1C)
Check between the HDC PWB and HDD and between the HDC
PWB and MCU/SW PWB for an open wire or poor contact. If no
problem is found, replace the HDD (PL7.2), HDC PWB (PL7.2),
and MCU/SW PWB(PL7.2) in this order.
HD-73 Hard Disk Interface Abnormal (BSD 3.1C)
Check between the HDC PWB and HDD and between the HDC
PWB and MCU/SW PWB for an open wire or poor contact. If no
problem is found, replace the HDD (PL7.2), HDC PWB (PL7.2),
and MCU/SW PWB (PL7.2) in this order.
HD-74 Hard Disk Interface Abnormal (BSD 3.1C)
Check between the HDC PWB and HDD and between the HDC
PWB and MCU/SW PWB for an open wire or poor contact. If no
problem is found, replace the HDD (PL7.2), HDC PWB (PL7.2),
and MCU/SW PWB(PL7.2) in this order.
HD-75 Hard Disk Interface Abnormal (BSD 3.1C)
Check between the HDC PWB and HDD and between the HDC
PWB and MCU/SW PWB for an open wire or poor contact. If no
problem is found, replace the HDD (PL7.2), HDC PWB(PL7.2),
and MCU/SW PWB(PL7.2) in this order.
E1-1 REGI SENSOR Jam (BSD 8.5)
Chain Link Codes for Check
l [Chain 8 Func 5] REGI SENSOR
l [Chain 8 Func 10] REGI CLUTCH
Check Items
l REGI SENSOR operation error
l REGI SENSOR actuator broken or missing
l REGI CLUTCH operation error
l REGI ROLL dirt, worn, or operation error
l Transport error due to foreign matter on paper path
l MAIN MOTOR rotation error
E1-2 REGI SENSOR Jam (BSD 8.5 10.3)
Chain Link Codes for Check
l [Chain4 Func1] MAIN MOTOR
l [Chain10 Func23] FUSER EXIT SENSOR
Check Items
l FUSER EXIT SENSOR operation error
l FUSER EXIT SENSOR actuator broken or missing
l DRUM rotation error
l FUSER ROLL rotation error
l ROLL dirt, worn, or operation error
l Transport error due to foreign matter on paper path
l MAIN MOTOR rotation error
E1-6 REGI SENSOR Jam (BSD 8.5)
Chain Link Codes for Check
l [Chain 8 Func 5] REGI SENSOR
Check Items
l Supply voltage drop at customer
l Check the circuit between the REGI SENSOR and MCU/SW
PWB. If no problem is found, replace the REGI
SENSOR.(PLXX.X)
E3-1 FUSER Jam (BSD 10.3 10.5)
Chain Link Codes for Check
l [Chain 10 Func 23] FUSER EXIT SENSOR
l [Chain 10 Func 61] EXIT MOTOR
Check Items
l FUSER EXIT SENSOR defect
l FUSER EXIT SENSOR actuator broken or missing
l DECURLER ROLL rotation error
l EXIT MOTOR defect
l Transport error due to foreign matter on paper path
E3-6 FUSER Jam (BSD 10.3)
Chain Link Codes for Check
l [Chain 10 Func 23] FUSER EXIT SENSOR
Check Items
l Supply voltage drop at customer
l Check the circuit between the FUSER EXIT SENSOR and
MCU/SW PWB. If no problem is found, replace the FUSER
EXIT SENSOR. (PL6.1)
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