
Field Service Ver. 2.0 Jul. 2009
17. JAM DISPLAY
681
TROUBLESHOOTING
17.3.5
Misfeed at tray 3 feed section
17.3.6
Misfeed at tray 4 feed section
Relevant parts
Transport motor (M25)
Tray 3 paper feed clutch (CL5)
Tray 3 paper feed sensor (PS21)
Paper feed/transport drive board (PFTDB)
Printer control board (PRCB)
Step
Action
WIRING DIAGRAM
Control signal
Location (Electri-
cal component)
1
Initial check items
—
—
2
PS21 I/O check, sensor check
PFTDB CN16-9 (ON)
X-6
3
CL5 operation check
PFTDB CN15-5 (REM)
X-5
4
M25 operation check
PFTDB CN13-6 (LOCK)
X-11
5
PFTDB ICP4 conduction check
—
—
6
Change PFTDB
—
—
7
Change PRCB
—
—
Relevant parts
Transport motor (M25)
Tray 4 paper feed clutch (CL7)
Tray 4 paper feed sensor (PS26)
Paper feed/transport drive board (PFTDB)
Printer control board (PRCB)
Step
Action
WIRING DIAGRAM
Control signal
Location (Electri-
cal component)
1
Initial check items
—
—
2
PS26 I/O check, sensor check
PFTDB CN18-3 (ON)
X-7~8
3
CL7 operation check
PFTDB CN17-2 (REM)
X-7
4
M25 operation check
PFTDB CN13-6 (LOCK)
X-11
5
PFTDB ICP4 conduction check
—
—
6
Change PFTDB
—
—
7
Change PRCB
—
—
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...