The Scanning Lamp Fails To Switch On; The Fixing Heater Fails To Switch On - Oce 3121 Technical & Service Manual

53 The scanning lamp fails to switch ON.

Cause Step
1
Scanning
lamp
2
Position of
the scanning
lamp
Connector
3
(poor con-
tact)
DC control 4
PBA
Composite
Power sup-
ply PBA

54 The fixing heater fails to switch ON.

Cause Step
1
Fixing heater 2
driver
Fixing unit 3
DC control
PBA
ed.2
Checks
Are both ends of the scanning
lamp black?
Is the scanning lamp posi-
tioned correctly?
Is the connection of the relay
connectors J20 and J95 nor-
mal? Further, is the connec-
tion of the connector J802 on
the composite power supply
PBA normal?
Replace the DC control PBA.
Is the problem corrected?
Checks
Is 'E000' indicated?
Replace the fixing heater
driver. Is the problem cor-
rected?
Replace the fuser unit. Is the
problem corrected?
Yes/No Action
Yes
Replace the scanning
lamp.
No
Refit it.
Reconnect.
No
Yes End
No Replace the composite
Power supply PBA
Yes/No Action
Yes See the descriptions for
'E000'.
Yes End
Yes End
No Replace the DC control
PBA
Trouble shooting 45