d-Color MF4003/MF3303
L TROUBLESHOOTING > 17. IC PROTECTOR
L-154
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
Target part name
When ICP trips
Symptom in each load
Trouble code and
others
F1E
FSDB
FS drive board
No operation
-
F2E
FM1
Machine cooling fan
Power line A19 error
C7613
FM2
Toner suction fan
F3E
M7
Polygon motor
Power line A20 error
C7615
F4E
CL1
1st transfer pressure clutch
Power line A7 error
C7607
CL2
Bypass tray paper feed clutch
CL3
Tray 1 paper feed clutch
CL4
Registration clutch
CL5
ADU transport clutch
CL6
ADU forward rotation clutch
CL7
ADU reverse rotation clutch
SD1
Exit path switch solenoid
F5E
M4
Toner supply motor/YM
Power supply malfunction
C5701
M5
Toner supply motor/CK
F6E
HVPS
High voltage unit
Power line A5 error
C7605
F8E
PCCB
PC control board
Power line A10 error
C760A
F10E
PS1
Front door sensor
Front door open display
-
-
Scanner unit
Drive system home sensor malfunction
C6102
-
DF
F11E
M6
Tray 1 lift-up motor
Tray 1 feeder up/down abnormality
C0202
CUDB
Clean unit drive board
Power line A15 error
C760F
F15E
-
3.3 V DC/DC converter in mechanical
controller of base board
Mechanical controller ASIC communication
error
C40A6
F16E
-
Scanner unit
Drive system home sensor malfunction
C6102
-
DF
F18E
M1
Main motor
Main motor failure to turn
C5102
F19E
M3
Fusing motor
Fusing motor failure to turn
C3201
F20E
M2
Color motor
Color motor failure to turn
C2253
PTC1E
TBSB/Y
Toner cartridge set board/Y
Toner Cartridge Installation Error
-
TBSB/M
Toner cartridge set board/M
-
TBSB/C
Toner cartridge set board/C
-
TBSB/K
Toner cartridge set board/K
-
TCRS/Y
TCR sensor/Y
Imaging Unit Installation Error
-
TCRS/M
TCR sensor/M
-
TCRS/C
TCR sensor/C
-
TCRS/K
TCR sensor/K
-
PTC2E
-
3.3 V DC/DC converter in mechanical
controller of base board
Mechanical controller ASIC communication
error
C40A6
ICP1
FM3
CPU cooling fan
MFP control board CPU temperature failure
C5372
Service Manual
Y119930-3
Summary of Contents for d-Color MF 4003
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