Kyocera Mita KM-3530 Service Manual page 178

2BH/J
Code Contents
C6050 Abnormally low fixing unit thermis-
tor temperature
• The fixing temperature remains below
120 °C/248 °F for 10 s.
C6410 Fixing unit connector insertion prob-
lem
• Absence of the fixing unit is detected
continuously for 1500 ms while there
is no error on the copier.
C6420 Broken fixing unit thermistor wire
• The fixing temperature remains at 0
°C/32 °F for 30 s continuously when
the fixing heater is on.
C7300 Toner sensor problem
• While the toner container sensor is
on, the toner sensor in the developing
unit does not turn on after the toner
sensor turns off and toner is replen-
ished from the toner container.
C7400 Image formation unit connector in-
sertion problem
• Absence of the image formation unit
is detected continuously for 1500 ms
while there is no error on the copier.
1-5-36
Causes Check procedures/corrective measures
Poor contact in Check the connection of connector CN10
the fixing unit on the main PCB and the continuity across
thermistor con- the connector terminals. Repair or replace
nector terminals. if necessary.
Measure the resistance. If it is ∞ Ω, replace
Broken fixing unit
thermistor wire. the fixing unit thermistor.
Fixing unit ther- Check and reinstall if necessary.
mistor installed
incorrectly.
Fixing unit ther- Check for continuity. If none, replace the
mostat triggered. fixing unit thermostat.
Fixing unit heater Check and reinstall if necessary.
M or S installed
incorrectly.
Broken fixing unit Check for continuity. If none, replace the
heater M or S fixing unit heater M or S.
wire.
Fixing unit con- Reinsert the fixing unit connector if neces-
nector inserted sary.
incorrectly.
Defective fixing Replace the fixing unit.
unit connector.
Poor contact in Check the connection of connector CN10
the fixing unit on the main PCB and the continuity across
thermistor con- the connector terminals. Repair or replace
nector terminals. if necessary.
Measure the resistance. If it is ∞ Ω, replace
Broken fixing unit
thermistor wire. the fixing unit thermistor.
Defective toner Replace the toner sensor.
sensor.
Poor contact in Reinsert the connector. Also check for con-
the toner sensor tinuity within the connector cable. If none,
connector termi- remedy or replace the cable.
nals.
Defective toner Replace the toner container sensor.
container sensor.
Defective toner Replace the toner container.
container.
Image formation Reinsert the image formation unit connec-
unit connector in- tor if necessary.
serted incorrectly.
Defective image Replace the image formation unit.
formation unit
connector.
Remarks
*: Optional