Canon LBP-2000 Service Manual page 177

CHAPTER 4
6 - 3 . 'E110 CALL FOR SERVICE' (scanner unit fault)
<Possible Causes>
1 . The connector of the BD signal line has poor contact.
Action: Correct the connection of the connector J908 on the BD PCB and the connector J102
on the DC controller PCB.
2 . The laser/scanner unit fault (BD) signal is not generated properly.
Action: Replace the laser/scanner unit.
3 . The connector of the scanner motor (M102) drive signal line has poor contact.
Action: Correct the connection of the connector J907 on the scanner driver PCB and the
connector J102 on the DC controller PCB. If the fault cannot be corrected, replace the
scanner unit.
4 . The DC controller PCB is faulty.
Action: Replace the DC controller PCB.
6 - 4 . 'E676 CALL FOR SERVICE' (communication error)
<Possible Causes>
1 . A communication error occurred between the video controller PCB and the DC controller PCB.
Action: Reconnect the flexible cable between the video controller and the DC controller. If not,
replace it. Then replace the DC controller PCB. If the fault cannot be corrected, re-
place the video controller PCB.
6 - 5 . '677/6F-61 CALL FOR SERVICE' (internal ROM error)
'677/6F-63 CALL FOR SERVICE' (internal RAM error)
'677/6F-7A CALL FOR SERVICE' (SRAM error)
<Possible Causes>
1 . The video controller PCB is faulty.
Action: Turn off the power switch, and then turn it on. If the problem is not corrected, replace
the video controller PCB.
6 - 6 . 'E805 CALL FOR SERVICE' (The heat discharge fan is faulty.)
<Possible Causes>
1 . The connector of the heat discharge (FM101) drive signal line has poor contact.
Action: Connect the connector J109 of the DC controller PCB correctly.
2 . The heat discharge fan (FM101) is faulty.
Action: Replace the heat discharge fan.
3 . The DC controller PCB is faulty.
Action: Replace the DC controller PCB.
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