Kyocera KM-4230 - Page 429

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