Oce 3121, Technical & Service Manual

Page: 131 / 908

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ed.2 Trouble shooting 23
17 E220 The scanning lamp operates incorrectly.
18 E240 An error has occurred in the communication between the
DC control PBA and the image processor PBA.
Cause Step Checks Yes/No Action
1 Does the scanning lamp
switch ON? No See “The scanning lamp
fails to turn ON.”
Scanning
lamp (low
intensity) 1 Are both ends of the scanning
lamp black? Yes Replace the scanning
lamp.
■
The scanner may fail to
move forward, due to
low intensity.
DC control
PBA 2 Replace the DC control PBA.
Is the problem corrected? Yes Replace the DC control
PBA
composite
power sup-
ply PBA
No
Check the wiring of the
DC controller PBA and
the composite power
supply PBA; if normal,
replace the composite
power supply PBA.
Cause Step Checks Yes/No Action
1 Switch OFF, then ON. Is the
problem corrected? No End
Connector
(poor con-
tact) 2 Is the connection of the con-
nector J111 on the DC con-
troller PBA and the connector
J509 on the image processor
PBA good? Yes Connect the connector
properly.
DC control
PBA 3 Replace the DC control PBA.
Is the problem corrected? Yes End
Image proc-
essor PBA No Replace the image proc-
essor PBA