Kyocera KM-3035 Service Manual page 206

2FD/2FF/2FG
Code
C7410 Drum unit connector insertion prob-
lem
• Absence of the drum unit is detected.
C7450 Image formation unit fuse cut
problem
• The input voltage is above 4.5 V.
C7800 Broken external temperature ther-
mistor wire
• The input voltage is above 4.5 V.
C7810 Short-circuited external temperature
thermistor
• The input voltage is below 1.0 V.
C8010 Finisher paper conveying motor
problem (3000-sheet finisher*)
• The paper conveying motor lockup
signal is detected for 0.5 s or longer.
1-5-32
Contents
Causes Check procedures/corrective measures
Drum unit connec- Reinsert the drum unit connector if neces-
tor inserted incor- sary.
rectly.
Defective drum Replace the drum unit.
unit connector.
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.
Poor contact in Reinsert the connector. Also check for con-
the humidity sen- tinuity within the connector cable. If none,
sor PCB connec- remedy or replace the cable.
tor terminals.
Defective external Replace the humidity sensor PCB.
temperature ther-
mistor.
Poor contact in Reinsert the connector. Also check for con-
the humidity sen- tinuity within the connector cable. If none,
sor PCB connec- remedy or replace the cable.
tor terminals.
Defective external Replace the humidity sensor PCB.
temperature ther-
mistor.
Poor contact in Reinsert the connector. Also check for con-
the paper convey- tinuity within the connector cable. If none,
ing motor connec- remedy or replace the cable.
tor terminals.
The paper con- Replace the paper conveying motor and
veying motor mal- check for correct operation.
functions.
Defective finisher Replace the finisher main PCB and check
main PCB. for correct operation.
Remarks
*: Optional