Canon iR5000 - E742; E743; E804

COPYRIGHT © 2000 CANON INC. 2000 2000 2000 2000 CANON iR5000/iR6000 REV.0 JULY 2000
CHAPTER 4 TROUBLESHOOTING IMAGE FAULTS/MALFUNCTIONS
4-35 T
Riser board, Main controller PCB
3) Try replacing the riser PCB. Is the problem corrected?
YES: End.
NO: Replace the main controller PCB.
4.1.40 E742
Disabling the PCI slot in service mode (BOARD>PCI1-OFF through PCI3-OFF) can
limit the occurrence of errors.
Wrong operation
1) Turn off and then on the main power switch. Is the problem cor-
rected?
YES: Check the operation once gain; if normal, end the work.
RIP1 board
2) Execute the following in service mode: BOARD>RIP1-CHK. Does
the generated test print show 32-dot lines?
NO: Check the connection; if normal, replace the RIP1 PCB.
YES: Replace the main controller PCB.
4.1.41 E743
Wrong operation
1) Turn off and then on the main power switch. Is the problem cor-
rected?
YES: Check the operation once again; if normal, end the work.
Connector, Main controller PCB
2) Is the connection of the connector (J1014) on the main controller
PCB and the connector (J5004) on the reader controller PCB nor-
mal? Further, is the cable between these connectors normal?
NO: Correct the connection/cable.
YES: Replace the main controller PCB.
4.1.42 E804
Foreign object
1) Is there a foreign object that hinders the rotation of the fan in the
rotating mechanism of the DC power supply fan?
YES: Remove the foreign object.
Connector
2) Is the connector (J102) on the DC controller PCB connected se-
curely?
NO: Connect the connector securely.
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