Kyocera FS-C8520MFP Service Manual page 212

Code Contents
6120 Abnormally high fuser
thermistor 3 (press roller)
temperature
The fuser temperature
exceeds 200 °C/392 °F for 1
s.
6130 Fuser thermistor 3 (press
roller) break error
Fuser thermistor 3 does not
reach 30° C/86 °F even
after60 s during warming up.
The detected temperature of
fuser thermistor3 does not
reach the specified tempera-
ture (ready indication temper-
ature) for 200 s in warming up
after reached to 30° C/86 °F.
6150 Abnormally low fuser
thermistor 3 (press roller)
temperature
The fuser temperature lower
than 30 °C/86 °F is detected
continuously for 1 s.
Causes
Deformed connec- If the I/F connector pins of the fuser unit and
tor pin. the main unit are deformed owing to foreign
matters, such as paper dusts, replace the
connectors or the units including the con-
nectors.
Defective IH PWB. Replace the IH PWB and check for correct
operation (see page 1-5-36).
Defective fuser Replace the fuser unit (see page 1-5-18).
thermistor.
Defective engine Replace the engine PWB and check for cor-
PWB. rect operation (see page 1-5-32).
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 thermistor 3 and fuser PWB (YC4)
Fuser unit and engine PWB (YC22)
Deformed connec- If the I/F connector pins of the fuser unit and
tor pin. the main unit are deformed owing to foreign
matters, such as paper dusts, replace the
connectors or the units including the con-
nectors.
Defective IH PWB. Replace the IH PWB and check for correct
operation (see page 1-5-36).
Defective fuser Replace the fuser unit (see page 1-5-18).
thermistor.
Defective engine Replace the engine PWB and check for cor-
PWB. rect operation (see page 1-5-32).
Deformed connec- If the I/F connector pins of the fuser unit and
tor pin. the main unit are deformed owing to foreign
matters, such as paper dusts, replace the
connectors or the units including the con-
nectors.
Defective fuser Replace the fuser unit (see page 1-5-18).
thermistor.
Defective fuser
heater.
Defective engine Replace the engine PWB and check for cor-
PWB. rect operation (see page 1-5-32).
1-4-24
Check procedures/
corrective measures
2MY/2MZ