Kyocera KM-2810, Service Manual

Page: 79 / 180

2H9
1-4-7
3500 Communication error between scan-
ner
An error code is detected.
Defective FFC
between control
PWB (YC8) and
CCD PWB (YC1),
or improper FFC
insertion. Reinsert the FFC. Also check for continuity
within the FFC. If none, remedy or replace
the FFC.
Defective CCD
PWB. Replace the CCD PWB.
Defective control
PWB. Replace the control PWB (See page 1-5-
35).
4000 Polygon motor (laser scanner unit)
error
The polygon motor ready input is not
given for 6 s during the polygon motor is
ON.
Defective harness
between polygon
motor and control
PWB (YC10), or
improper connec-
tor insertion. Reinsert the connector. Also check for conti-
nuity within the connector harness. If none,
remedy or replace the harness.
Defective laser
scanner unit. Replace the laser scanner unit (See page 1-
5-16).
Defective control
PWB. Replace the control PWB (See page 1-5-
35).
4200 BD error (laser scanner unit) error BD sensor does
not detect laser
beam due to con-
densation on the
polygon mirror. Turn printer power off for at least 30 min-
utes, then turn printer on again. If not cured,
replace the laser scanner unit (See page 1-
5-16).
Defective laser
scanner unit. Replace the laser scanner unit (See page 1-
5-16).
Defective control
PWB. Replace the control PWB (See page 1-5-
35).
6000 Broken fuser heater lamp wire
The fuser temperature does not rise
after the fuser heater lamp has been
turned on.
Poor contact in the
fuser thermistor
connector termi-
nals. Reinsert the connector (See page 1-5-30).
Poor contact in the
fuser heater lamp
connector termi-
nals. Reinsert the connector (See page 1-5-30).
Fuser thermistor
installed incor-
rectly. Replace the fuser unit (See page 1-5-30).
Fuser thermal cut-
out triggered. Replace the fuser unit (See page 1-5-30).
Fuser heater lamp
installed incor-
rectly. Replace the fuser unit (See page 1-5-30).
Broken fuser
heater lamp wire. Replace the fuser unit (See page 1-5-30).
6020 Abnormally high fuser thermistor
temperature
Fuser thermistor detects abnormally
temperature.
Shorted fuser ther-
mistor. Replace the fuser unit (See page 1-5-30).
Defective control
PWB. Replace the control PWB (See page 1-5-
35).
Code Contents
Remarks
Causes Check procedures/corrective measures