2KZ/2K0
1-4-52
(27)
The LED lamp
does not turn on
when original is
present on the DP.
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.
DP original sensor and DP main PWB (YC3)
DP main PWB (YC1) and engine PWB (YC18)
2. Defective DP origi-
nal sensor.
Replace the DP original sensor.
3. Defective PWB. Replace the DPLED PWB and check for correct operation.
Replace the engine PWB and check for correct operation
(see page 1-5-31).
(28)
The size of original
on the DP is not
displayed correctly.
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.
DP original size width sensor and DP main PWB (YC4)
DP original size length sensor and DP main PWB (YC2)
DP main PWB (YC1) and engine PWB (YC18)
2. Defective original
size sensor.
Replace the DP original size width sensor or DP original
size length sensor.
3. Defective PWB. Replace the DP main PWB or engine PWB and check for
correct operation (see page 1-5-28,1-5-31).
(29)
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, replace the cable.
DP paper feed motor and DP main PWB (YC9)
DP main PWB (YC1) and engine PWB (YC18)
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 DP main PWB or engine PWB and check for
correct operation (see page 1-5-28,1-5-31).
(30)
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, replace the cable.
DP switchback motor and DP main PWB (YC9)
DP main PWB (YC1) and engine PWB (YC18)
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 switchback motor.
4. Defective PWB. Replace the DP main PWB or engine PWB and check for
correct operation (see page 1-5-28,1-5-31).
Problem Causes Check procedures/corrective measures
Service Manual Y113010-4
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