Kyocera TASKalfa 6501i Service Manual page 451

Code Contents
6030 Broken fuser thermistor 1
wire
Input from fuser center therm-
istor 1 is 1010 or more (A/D
value) continuously for 1 s.
Verify if A/D read in the differ-
ential output won't change by
4 or more when it was turned
on for 10 seconds in a low-
temperature environment.
6040 Fuser heater error
Input from fuser center therm-
istor 1 is abnormal value con-
tinuously for 1 s.
Related parts
Fuser unit
Engine PWB
Fuser thermistor 1
Fuser thermostat
(triggered)
Fuser unit
Engine PWB
Center thermistor 1
Fuser thermostat
(triggered)
1-4-91
Check procedures/
corrective measures
1. Check that no paper jam is present.
2. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
Fuser unit and Engine PWB (YC26)
3. If the wiring is disconnected, shorted or
grounded, replace the wiring.
4. eplace the Fuser unit (see page 1-5-67).
(Deteriorated sensitivity due to the toner
adhered to the center thermistor.)
1. Check the engine software and upgrade
to the latest, if necessary.
2. Replace the engine PWB (see page 1-5-
83).
1. eplace the Fuser unit (see page 1-5-67).
1. Confirm that the wiring connector is
firmly connected and, if necessary, con-
nect the connector all the way in.
Fuser unit and fuser heater PWB (YC1)
2. If the wiring is disconnected, shorted or
grounded, replace the wiring.
3. eplace the Fuser unit (see page 1-5-67).
1. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
Fuser unit and Engine PWB (YC26)
2. If the wiring is disconnected, shorted or
grounded, replace the wiring.
1. Check the engine software and upgrade
to the latest, if necessary.
2. Replace the engine PWB (see page 1-5-
83).
1. eplace the Fuser unit (see page 1-5-67).
1. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
Fuser unit and fuser heater PWB (YC1)
2. If the wiring is disconnected, shorted or
grounded, replace the wiring.
3. eplace the Fuser unit (see page 1-5-67).
2N8/2N7