Kyocera FS-1050 Service Manual - Page 134

Call service 6110 - Fuser unit error

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(6) Call service 6110 - Fuser unit error Call service 6110 Turn power switch off, and remove power cable. Detach connector CN4 on power supply board. Measure resistance between pins 1 and 2 of the detached thermistor's connector. Yes Open (infinite)? No Detach connector CN1 on power supply board. Replace thermistor. See page 5-26. Measure resistance between pins 1 and 3 of the detached heater lamp's connector. Yes Open (infinite)? No Replace thermal cutout or heater lamp. See page 5-27 or 5-23. Replace engine board (KP-882). See page 5-11. No "6110" shown? Yes Replace harness (S02772) between engine board (KP-882) and bias board (KP-884). No "6110" shown? Yes Replace bias board or high voltage board or power supply board. See page 5-15 or 5-14. End. FS-1050 6-14

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6-14
FS-1050
(6) Call service 6110 - Fuser unit error
Yes
Yes
Yes
No
Turn power switch off,
and remove power
cable.
Detach connector CN4
on power supply board.
Detach connector CN1
on power supply board.
Measure resistance
between pins 1 and 2
of the detached
thermistor's connector.
Replace thermistor.
See page 5-26.
Replace thermal cutout
or heater lamp.
See page 5-27 or 5-23.
Replace bias board or high
voltage board or power
supply board. See page 5-15
or 5-14.
Open (infinite)?
Open (infinite)?
No
No
Measure resistance
between pins 1 and 3
of the detached heater
lamp's connector.
Replace harness
(S02772) between
engine board (KP-882)
and bias board (KP-884).
End.
"6110" shown?
Yes
No
"6110" shown?
Replace engine board
(KP-882). See page 5-11.
Call service
6110