Kyocera KM-4230 Service Manual page 429

2A3/4
Code Contents
C244 Lower desk lift motor
problem*
• When the drawer is in-
serted, the lower desk lift
limit switch does not turn
on within 4 to 5 s of the
lower desk lift motor turn-
ing on.
• During copying, the lower
desk lift limit switch does
not turn on within 200 ms
of the lower desk lift motor
turning on.
C310 Scanner carriage problem
• The home position is not
correct when the power is
turned on or at the start of
copying using the bypass
table.
*3: Optional for 42 ppm only.
3-5-10
3
Causes
Broken gears Replace the lower desk lift
or couplings motor.
of the lower
desk lift mo-
tor.
Defective Check for continuity across
lower desk lift the coil. If none, replace the
motor. lower desk lift motor.
Poor contact Reinsert the connector. Also
of the lower check for continuity within the
desk lift motor connector cable. If none, rem-
connector edy or replace the cable.
terminals.
Defective Check if CN3-12 on the desk
lower desk lift main PCB goes low when the
limit switch. lower desk lift limit switch is
turned on. If not, replace the
upper desk lift limit switch.
Poor contact Reinsert the connector. Also
of the lower check for continuity within the
desk lift limit connector cable. If none, rem-
switch con- edy or replace the cable.
nector termi-
nals.
Poor contact of Check the connection of con-
the connector nector CN5 on the main PCB
terminals. and the continuity across the
connector terminals. Repair or
replace if necessary.
Defective scan- Replace the scanner home
ner home posi- position switch.
tion switch.
Defective main Replace the main PCB or
PCB or scan- scanner motor PCB and check
ner motor PCB. for correct operation.
Defective scan- Replace the scanner motor.
ner motor.
Remarks
Check procedures/
corrective measures