E220 The Scanning Lamp Operates Incorrectly; E240 An Error Has Occurred In The Communication Between The Dc Control Pba And The Image Processor Pba - Oce 3121 Technical & Service Manual

17 E220 The scanning lamp operates incorrectly.

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