Olivetti d-Color MF4003 Service Manual page 552

d-Color MF4003/MF3303
17. IC PROTECTOR
17.1 Outline
• To increase product safety, this MFP has an IC protector installed in each board. ICP is a component that protects IC.
• If the amount of the current supplied to the electrical parts such as motor exceeds the set level, ICP trips to protect IC from over current.
• The IC is provided with an over current protective function which works when the current exceeds the specified value to protect the IC from
over current.
For an IC that is provided with an over current protective function and being protected, if the problem is solved, the MFP will recover after
turning OFF/ON the main power switch without replacing the board.
• The following list contains IC protector installed in each board, related devices, and symptoms when an over current occurs.
17.2 IC protector list
17.2.1 d-Color MF4003/MF3303
(1) Base board
(a) ICP
ICP No. Symbol
F1E FSDB
F2E FM1
FM2
F3E M7
F4E CL1
CL2
CL3
CL4
CL5
CL6
CL7
SD1
F5E M4
M5
F6E HVPS
F8E PCCB
F10E PS1
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-
F11E M6
CUDB
F15E -
F16E -
-
F18E M1
F19E M3
F20E M2
PTC1E TBSB/Y
TBSB/M
TBSB/C
TBSB/K
TCRS/Y
TCRS/M
TCRS/C
TCRS/K
PTC2E -
ICP1 FM3
Service Manual
Target part name
FS drive board
Machine cooling fan
Toner suction fan
Polygon motor
1st transfer pressure clutch
Bypass tray paper feed clutch
Tray 1 paper feed clutch
Registration clutch
ADU transport clutch
ADU forward rotation clutch
ADU reverse rotation clutch
Exit path switch solenoid
Toner supply motor/YM
Toner supply motor/CK
High voltage unit
PC control board
Front door sensor
Scanner unit
DF
Tray 1 lift-up motor
Clean unit drive board
3.3 V DC/DC converter in mechanical
controller of base board
Scanner unit
DF
Main motor
Fusing motor
Color motor
Toner cartridge set board/Y
Toner cartridge set board/M
Toner cartridge set board/C
Toner cartridge set board/K
TCR sensor/Y
TCR sensor/M
TCR sensor/C
TCR sensor/K
3.3 V DC/DC converter in mechanical
controller of base board
CPU cooling fan
L TROUBLESHOOTING > 17. IC PROTECTOR
Symptom in each load
No operation
Power line A19 error
Power line A20 error
Power line A7 error
Power supply malfunction
Power line A5 error
Power line A10 error
Front door open display
Drive system home sensor malfunction
Tray 1 feeder up/down abnormality
Power line A15 error
Mechanical controller ASIC communication
error
Drive system home sensor malfunction
Main motor failure to turn
Fusing motor failure to turn
Color motor failure to turn
Toner Cartridge Installation Error
Imaging Unit Installation Error
Mechanical controller ASIC communication
error
MFP control board CPU temperature failure
L-154
When ICP trips
Trouble code and
others
C7613
C7615
C7607
C5701
C7605
C760A
C6102
C0202
C760F
C40A6
C6102
C5102
C3201
C2253
C40A6
C5372
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