Table of Contents
Advertisement
DP
Problem
(1)
The original feed
motor does not oper-
ate.
(2)
The original convey-
ing motor does not
operate.
(3)
The original registra-
tion motor does not
operate.
(4)
The DP lift motor
does not operate.
(5)
The DP fan motor
does not operate.
Y104350-7
Causes
Poor contact in the original
feed motor connector termi-
nals.
Broken original feed motor
gear.
Defective original feed
motor.
Defective DP main PWB.
Poor contact in the original
conveying motor connector
terminals.
Broken original conveying
motor gear.
Defective original convey-
ing motor.
Defective DP main PWB.
Poor contact in the original
registration motor connec-
tor terminals.
Broken original registration
motor gear.
Defective original registra-
tion motor.
Defective DP main PWB.
Poor contact in the DP lift
motor connector terminals.
Broken DP lift motor gear.
Defective DP lift motor.
Defective DP main PWB.
Broken DP fan motor coil.
Poor contact in DP fan
motor connector terminals.
Check procedures/corrective measures
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Check visually and replace the original feed motor if necessary.
Run maintenance item U243 and check if the original feed motor
operates when YC3-1 and YC3-2 on the DP main PWB go low. If
not, replace the original feed motor.
Run maintenance item U243 and check if YC3-1 and YC3-2 on
the DP main PWB go low. If not, replace the DP main PWB.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Check visually and replace the original conveying motor if neces-
sary.
Run maintenance item U243 and check if the original conveying
motor operates when YC4-7 and YC4-8 on the DP main PWB go
low. If not, replace the original conveying motor.
Run maintenance item U243 and check if YC4-7 and YC4-8 on
the DP main PWB go low. If not, replace the DP main PWB.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Check visually and replace the original registration motor if neces-
sary.
Run maintenance item U243 and check if the original registration
motor operates when YC4-1 and YC4-2 on the DP main PWB go
low. If not, replace the original registration motor.
Run maintenance item U243 and check if YC4-1 and YC4-2 on
the DP main PWB go low. If not, replace the DP main PWB.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Check visually and replace the DP lift motor if necessary.
Run maintenance item U243 and check if the DP lift motor oper-
ates when YC3-7, YC3-8, YC3-9 and YC3-10 on the DP main
PWB go low. If not, replace the DP lift motor.
Run maintenance item U243 and check if YC3-7, YC3-8, YC3-9
and YC3-10 on the DP main PWB go low. If not, replace the DP
main PWB.
Check for continuity across the coil. If none, replace the DP fan
motor.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Sevice Manual
1-5-69
Advertisement
Table of Contents
