Fusing Heaters Do Not Operate; Power Is Not Supplied To Options; Adf; Optional Paper Feed Cabinet - Konica Minolta Bizhub C350 Service Manual

Power supply trouble
3.3

Fusing Heaters do not Operate

Upper Right Door Switch (SW5)
Fusing Unit
Step Check Item
Is the power source voltage applied across
PJ2PU1-1 and 3 on PU1?
1
During this time, the Right Door should be
closed.
Is the power source voltage applied across
2
CN44-1 and 3, or across 2 and 3?
3.4

Power is not Supplied to Options

3.4.1

ADF

Step Check Item
Is DC24 V being output from CN51-1 on DF-
1
601?
Is DC24 V being output from PJ5PU1-4 on
2
PU1?
Is the fuse (F201) on PU1 conducting?
3
3.4.2

Optional Paper Feed Cabinet

Step Check Item
Is DC24 V being applied to hookup connector
1
CN28-1?
Is DC24 V being output from PJ6PU1-2 on
2 PU1?
Is the fuse (F204) on PU1 conducting?
3
bizhub C350 Field Service Ver. 2.0 April 2004
Relevant Electrical Parts
DC Power Supply (PU1)
WIRING
DIAGRAM
(Location)
26-G
3-G
WIRING
DIAGRAM
(Location)
23-E
23-E
WIRING
DIAGRAM
(Location)
26-J
22-F
4-50
Result Action
NO Check wiring from
power outlet to SW5 to
PJ2PU1.
YES Fusing Unit
NO Change PU1.
Result Action
YES Malfunction in DF-601
NO Check wiring from PU1
to CN53 to ADF.
YES Change PU1.
NO Change F201.
Malfunction in DF-601
Result Action
Malfunction in Paper
NO
Feed Cabinet
Check wiring from PU1
NO to CN49 to Paper Feed
Cabinet.
YES Change PU1.
Change F204.
NO Malfunction in Paper
Feed Cabinet