2FP/2FY/2FR
1-5-23
Problem Causes Check procedures/corrective measures
(7) Defective face
up/down solenoid
operating.
• Change guide
does not operate
in the fuser unit.
(8) False “Close pa-
per transfer unit”.
(9) False “Close top
cover”.
Improper insertion of the
face up/down solenoid
connector into fuser board
(KP-1069).
Broken face up/down sole-
noid coil or blown-out fuse
(ICP831) on the fuser
board (KP-1069).
Defective engine board
(KP-1081) or power supply
unit.
Reinsert the connector.
Remove and then check for continuity across the face up/down
solenoid connector terminals; pin #1 and pin #2, pin #3 and pin
#2. Remove and check for continuity of fuser board (KP-1069)
connectors terminals; across the pin #2 of connector (YC832)
and pin #2 of connector (YC831). If none, replace the face up/
down solenoid and fuser board (KP-1069) at the same time. Or
replace fuser unit.
See page 1-6-27.
Replace engine board (KP-1081) or power supply unit. See page
1-6-20.
Measure voltage #12
pin of YC701 on sensor
board (KP-1077).
Connect circuit tester to
pin #20 of YC4 on engine
board (KP-1081).
Yes
Yes
No
No
Replace engine board
(KP-1081). See page 1-
6-20.
Replace sensor board
(KP-1077). See page 1-
6-24.
When
paper feed unit
close securely, does pin
#12 voltage change
0 to 24 V
DC?
Replace sensor board
(KP-1077). See page 1-
6-24.
When
paper transfer unit
close securely, does pin
#20 voltage change
0 to 24 V
DC?
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