Kyocera TASKalfa 3050ci Service Manual page 281

Code Contents
2790 Transfer skew motor error
When the transfer skew motor
is driven, timeouts were
detected twice in a row.
2820 Transfer motor steady-state
error
After transfer motor is stabi-
lized, the ready signal is at the
H level for 5 s continuously.
2840 Transfer cleaning motor
error
After transfer cleaning motor
is driven, the ready signal
does not turn to L within 2 s.
After transfer cleaning motor
is stabilized, the ready signal
is at the H level for 1 s contin-
uously.
2850 Transfer belt sensor error
The signal is not received for
100 ms in succession.
Causes
Defective connec- Reinsert the connector. Also check for conti-
tor cable or poor nuity within the connector cable. If none,
contact in the con- replace the cable.
nector. Transfer skew motor and engine PWB (YC3)
Defective drive Check if the gears rotate smoothly. If not,
transmission sys- grease the bushes and gears. Check for
tem of motor. broken gears and replace if any.
Defective transfer Replace the transfer skew motor.
skew motor.
Defective engine Replace the engine PWB and check for cor-
PWB. rect operation (see page 1-5-54).
Defective connec- Reinsert the connector. Also check for conti-
tor cable or poor nuity within the connector cable. If none,
replace the cable.
contact in the con-
nector. Transfer motor and feed PWB 1 (YC13)
Feed PWB 1 (YC2) and engine PWB (YC5)
Defective drive Check if the gears rotate smoothly. If not,
transmission sys- grease the bushes and gears. Check for
tem of motor. broken gears and replace if any.
Defective transfer Replace the transfer motor.
motor.
Defective engine Replace the engine PWB and check for cor-
PWB. rect operation (see page 1-5-54).
Defective connec- Reinsert the connector. Also check for conti-
tor cable or poor nuity within the connector cable. If none,
contact in the con- replace the cable.
nector. Transfer cleaning motor and engine PWB
(YC3)
Defective drive Check if the gears rotate smoothly. If not,
transmission sys- grease the bushes and gears. Check for
tem of motor. broken gears and replace if any.
Defective transfer Replace the transfer cleaning motor.
cleaning motor.
Defective engine Replace the engine PWB and check for cor-
PWB. rect operation (see page 1-5-54).
Defective connec- Reinsert the connector. Also check for conti-
tor cable or poor nuity within the connector cable. If none,
contact in the con- replace the cable.
nector. Transfer belt sensor and engine PWB (YC3)
Defective transfer Replace the transfer belt sensor.
belt sensor.
Defective engine Replace the engine PWB and check for cor-
PWB. rect operation (see page 1-5-54).
1-4-41
2LK/2LN/2LM/2LC
Check procedures/
corrective measures