Kyocera TASKalfa 3050ci Service Manual page 294

Code Contents
6250 Abnormally low fuser
thermistor 2 temperature
Fuser thermistor 2 detects a
temperature lower than 50°C/
122°F for 1 s after warming
up.
6320 Abnormally high fuser
thermistor 3 temperature
Fuser thermistor 3 detects a
temperature higher than
240°C/464°F for 1 s.
6330 Broken fuser thermistor 3
wire
Input from fuser thermistor 3
is 992 or more (A/D value)
continuously for 1 s.
Causes
Deformed connec- See page 1-4-55.
tor pin.
Defective triac. See page 1-4-55.
Defective fuser Replace the fuser unit (see page 1-5-45).
thermistor 2.
Defective fuser IH. Replace the fuser unit (see page 1-5-45).
Defective engine Replace the engine PWB and check for cor-
PWB. rect operation (see page 1-5-54).
Deformed connec- See page 1-4-55.
tor pin.
Defective triac. See page 1-4-55.
Shorted fuser Replace the fuser unit (see page 1-5-45).
thermistor 3.
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. Fuser unit and engine PWB (YC26)
Deformed connec- See page 1-4-55.
tor pin.
Defective triac. See page 1-4-55.
Broken fuser Replace the fuser unit (see page 1-5-45).
thermistor 3 wire.
Fuser thermostat Replace the fuser unit (see page 1-5-45).
triggered.
Defective fuser IH. Replace the fuser unit (see page 1-5-45).
Defective engine Replace the engine PWB and check for cor-
PWB. rect operation (see page 1-5-54).
1-4-54
2LK/2LN/2LM/2LC
Check procedures/
corrective measures