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Field Service Ver. 2.0 Jul. 2009
23. IC protector
909
TROUBLESHOOTING
H. Scanner relay board
23.2.2
DF-618
A. DF control board
ICP No. Symbol
Target part name
When ICP trips
Symptom in each load
Trouble code
and others
PTR1
PS14
Empty sensor
JAM caused by the last original
fed from DF
—
RS201
Original cover sensor
Unable to detect a close of DF
—
REYB/
SCAN
Scanner relay board_WAKE
signal generation section
Opening and closing DF or plac-
ing original on DF cannot cause
MFP to wake from sleep mode.
—
MCMB
Machine condition monitor
board
Unlit InfoLine (blue and orange)
located at the front of scanner
section
—
—
Local interface board (option)
USB device does not work.
—
PTR2
PS204
Original size detection sensor/
1
Wrong original size detection
—
PS205
Original size detection sensor/
2
Wrong original size detection
—
F1
FM201
Optical cooling fan motor
Optical cooling fan motor’s failure
to turn
C-8302
ICP
Symbol
Symbol
Relevant parts
When ICP trips
Symptom in each load
Trouble code
and others
F8
DC to DC converter input sec-
tion 24V line
Unable to produce DC5V in ADF and
MFP unable to detect ADF
F6
SD1
Switch back solenoid
ADF paper exit / image reading sec-
tion JAM
SD2
Exit switch back solenoid
ADF image reading section JAM
F7
SD3
Stamp solenoid
Unable to place a stamp
FM1
Cooling fan
Cooling fan failure
C-8302
F10
PS3
Registration sensor
ADF transport section JAM
PS8
Reverse Registration sensor
ADF turnover section JAM
PS4
After separate sensor
ADF transport section JAM
F9
PS7
Reverse roller sensor
Turn around pressure welding alien-
ation trouble
C-8102
PS9
Before read sensor
ADF transport section JAM
PS10 Length sensor/1
Wrong original size detection
PS11 Length sensor/2
Wrong original size detection
PS12 Length sensor/3
Wrong original size detection
PS15 Lift up lower sensor
Lift up mechanism failure
C-8106
F11
PS20 Original set sensor
Original reset indication
F2
M7
Registration motor
ADF transport section JAM
F3
M1
Reading motor
ADF image reading section JAM
Y110571-1 Service Manual
Summary of Contents for d-color MF651
Page 1: ...d Color MF651 d Color MF551 d Color MF451 Color Printer SERVICE MANUAL Code Y110571 1...
Page 24: ...MEASURES TO TAKE IN CASE OF AN ACCIDENT S 22 Blank Page...
Page 27: ...d Color MF651 d Color MF551 d Color MF451 Color Printer SERVICE MANUAL Code Y110571 1...
Page 1053: ...UPDATING STATUS DATE UPDATED PAGES PAGES CODE 10 2009 1ST EDITION 1053053 Y110571 1...