3NY
1-3-4
1050 PF lift motor 4 error
(paper feeder)
After cassette 5 is inserted, PF lift
sensor 4 does not turn on within 10
s. This error is detected four times
successively.
Defective bot-
tom plate eleva-
tion mechanism
in the cassette.
Check to see if the bottom plate can
move smoothly and repair it if any prob-
lem is found.
Defective con-
nector cable or
poor contact in
the connector.
Reinsert the connector. Also check for
continuity within the connector cable.
If none, replace the cable.
PF lift motor 4 and PF main PWB (YC7)
Defective drive
transmission sys-
tem of the PF lift
motor.
Check if the gears rotate smoothly.
If not, grease the bushes and gears.
Check for broken gears and replace if
any.
Defective PF lift
motor.
Replace the PF lift motor 4.
Defective PF
main PWB.
Replace the PF main PWB.
(See page 1-4-4)
1800 Paper feeder 1 communication
error
A communication error is detected
10 times in succession.
Improper installa-
tion paper
feeder.
Follow installation instruction carefully
again.
Defective con-
nector cable or
poor contact in
the connector.
Reinsert the connector. Also check for
continuity within the connector cable.
If none, replace the cable.
PF main PWB (YC3) and engine PWB
(YC22)
Defective engine
PWB.
Replace the engine PWB and check for
correct operation (Refer to the service
manual for the printer).
Defective PF
main PWB.
Replace the PF main PWB.
(See page 1-4-4)
1810 Paper feeder 2 communication
error
A communication error is detected
10 times in succession.
Improper installa-
tion paper
feeder.
Follow installation instruction carefully
again.
Defective con-
nector cable or
poor contact in
the connector.
Reinsert the connector. Also check for
continuity within the connector cable.
If none, replace the cable.
PF main PWB (YC3) and PF main PWB
(YC4)
Defective PF
main PWB.
Replace the PF main PWB.
(See page 1-4-4)
Code Contents Causes
Check procedures/
corrective measures