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19. TROUBLE CODE
Field Service Ver. 2.0 Jul. 2009
828
TROUBLESHOOTING
19.5.177 CC156: ADF ROM error
19.5.178 CC157: Finisher ROM error (RU)
19.5.179 CC158: Finisher ROM error (ZU)
Relevant parts
DF control board (DFCB)
Step
Action
WIRING DIAGRAM
Control signal
Location (Electri-
cal component)
1
Disconnect and then connect the power
cord. Turn OFF the main power switch, wait
for 10 sec. or more, and turn ON the main
power switch.
—
—
2
Rewrite the firmware.
—
—
3
Change DFCB
—
—
Relevant parts
Transport control board (TRCB)
FS control board (FSCB)
Step
Action
WIRING DIAGRAM
Control signal
Location (Electri-
cal component)
1
Disconnect and then connect the power
cord. Turn OFF the main power switch, wait
for 10 sec. or more, and turn ON the main
power switch.
—
—
2
Rewrite the firmware.
—
—
3
Change TRCB
—
—
4
Change DFCB
—
—
Relevant parts
ZU control board (ZUCB)
Step
Action
WIRING DIAGRAM
Control signal
Location (Electri-
cal component)
1
Disconnect and then connect the power
cord. Turn OFF the main power switch, wait
for 10 sec. or more, and turn ON the main
power switch.
—
—
2
Rewrite the firmware.
—
—
3
Change ZUCB
—
—
Service Manual Y110571-1
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...