2NM/2NX/2NY/2NZ/2P0/2P6
1-4-101
(20)
A message indicat-
ing cover open is
displayed when the
rear cover is
closed.
(50/60 ppm model
only)
1. Defective connector
cable or poor con-
tact in the connector.
Reinsert the connector. Also check for continuity within the
connector cable. If none, replace the cable.
Rear cover switch and connect left PWB (YC10)
Connect left PWB and control PWB (YC2)
2. Defective rear cover
switch.
Check and replace if necessary.
3. Defective connect
left PWB.
Replace the connect left PWB (see page 2-2-36).
4. Defective PWB. Replace the control PWB and check for correct operation
(see page 2-2-12).
(21)
DP paper feed
motor does not
operate.
1. Defective connector
cable or poor con-
tact in the connector.
Reinsert the connector. Also check for continuity within the
connector cable. If none, remedy or replace the cable.
DP paper feed motor and control PWB (YC1001)
2. Defective drive trans-
mission system.
Check if the rollers and gears rotate smoothly. If not,
grease the bushes and gears. Check for broken gears and
replace if any.
3. Defective motor. Replace the DP paper feed motor.
4. Defective PWB. Replace the control PWB and check for correct operation
(see page 2-2-12).
(22)
DP paper convey-
ing motor does not
operate.
1. Defective connector
cable or poor con-
tact in the connector.
Reinsert the connector. Also check for continuity within the
connector cable. If none, remedy or replace the cable.
DP conveying motor and control PWB (YC1001)
2. Defective drive trans-
mission system.
Check if the rollers and gears rotate smoothly. If not,
grease the bushes and gears. Check for broken gears and
replace if any.
3. Defective motor. Replace the DP conveying motor.
4. Defective PWB. Replace the control PWB and check for correct operation
(see page 2-2-12).
(23)
DP switchback
motor does not
operate.
1. Defective connector
cable or poor con-
tact in the connector.
Reinsert the connector. Also check for continuity within the
connector cable. If none, remedy or replace the cable.
DP switchback motor and control PWB (YC1001)
2. Defective motor. Replace the DP switchback motor.
3. Defective PWB. Replace the control PWB and check for correct operation
(see page 2-2-12).
(24)
An original jams
when the main
power switch is
turned on.
1. A piece of paper torn
from an original is
caught around the
DP timing sensor,
DP ragistration sen-
sor or DP switchback
sensor.
Check visually and remove it, if any.
2. Defective DP timing
sensor.
Replace the DP timing sensor, DP ragistration sensor or
DP switchback sensor.
3. Defective PWB. Replace the control PWB and check for correct operation
(see page 2-2-12).
Problem Causes Check procedures/corrective measures
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