3H3
1-4-15
(5)
The rear upper side
registration guide
motor does not oper-
ate.
Poor contact in the rear
upper side registration
guide motor connector ter-
minals.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Broken rear upper side reg-
istration guide motor gear.
Check visually and replace the rear upper side registration guide
motor gear if necessary.
Defective front upper side
registration guide motor.
Run maintenance item U240 and check if the rear upper side reg-
istration guide motor operates when YC24-A10, YC24-A12,
YC24-B19 and YC-B21 on the finisher main PWB go low. If not,
replace the rear upper side registration guide motor.
Defective finisher main
PWB.
Run maintenance item U240 and check if YC24-A10, YC24-A12,
YC24-B19 and YC-B21 on the finisher main PWB go low. If not,
replace the finisher main PWB.
(6)
The lower side regis-
tration guide motor
does not operate.
Poor contact in the lower
side registration guide
motor connector terminals.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Broken lower side registra-
tion guide motor gear.
Check visually and replace the lower side registration guide motor
gear if necessary.
Defective lower side regis-
tration guide motor.
Run maintenance item U240 and check if the lower side registra-
tion guide motor operates when YC24-A13, YC24-A15, YC24-B16
and YC-B18 on the finisher main PWB go low. If not, replace the
lower side registration guide motor.
Defective finisher main
PWB.
Run maintenance item U240 and check if YC24-A13, YC24-A15,
YC24-B16 and YC-B18 on the finisher main PWB go low. If not,
replace the finisher main PWB.
(7)
The main tray eleva-
tion motor does not
operate.
Poor contact in the main
tray elevation motor con-
nector terminals.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Broken main tray elevation
motor gear.
Check visually and replace the main tray elevation motor gear if
necessary.
Defective main tray eleva-
tion motor.
Run maintenance item U240 and check if the main tray elevation
motor operates when YC9-1 and YC9-2 on the finisher drive PWB
go low. If not, replace the main tray elevation motor.
Defective finisher drive
PWB.
Run maintenance item U240 and check if YC9-1 and YC9-2 on
the finisher drive PWB go low. If not, replace the finisher drive
PWB.
Defective finisher main
PWB.
Run maintenance item U240 and check if YC12-17 on the finisher
main PWB goes low. If not, replace the finisher main PWB.
(8)
The front stapler
motor does not oper-
ate.
Poor contact in the front
stapler motor connector ter-
minals.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Broken front stapler motor
gear.
Check visually and replace the front stapler motor gear if neces-
sary.
Defective front stapler
motor.
If the front stapler motor dose not operate when 5 V DC is output
to YC18-A13 on the finisher main PWB, replace the front stapler
motor.
Defective finisher main
PWB.
If 5 V DC is not output from YC18-A13 on the finisher main PWB,
replace the finisher main PWB.
Problem
Causes
Check procedures/corrective measures
Y1043
71-8
Service Manual
