Kyocera TASKalfa 620 - Page 180

2KN/2KP
1-4-36
C2720 PTC cleaning motor error
• LOCK signal remains high for 1 s,
200 ms after the PTC cleaning motor
has turned on.
Poor contact in the
drive motor con-
nector terminals.
Check the connection of connector YC5 on
the engine PWB. Reinsert the connector.
Also check for continuity within the connec-
tor cable. If none, remedy or replace the
cable.
Defective PTC
cleaning motor
rotation control cir-
cuit.
Replace the PTC cleaning motor.
Defective drive
transmission sys-
tem.
Check if the rollers and gears rotate
smoothly. If not, grease the bushings and
gears. Check for broken gears and replace if
any.
Defective engine
PWB.
Replace the engine PWB.
C3100 Scanner carriage problem
• The home position is not correct when
the power is turned on or at the start of
copying using the MP tray.
Defective scanner
PWB.
Replace the scanner PWB and check for
correct operation.
Defective scanner
home position
switch.
Replace the scanner home position switch.
Defective scanner
motor.
Replace the scanner motor.
Poor contact in the
connector termi-
nals.
Check the connection of connector YC2,
YC5 and YC10 on the scanner PWB and the
continuity across the connector terminals.
Repair or replace if necessary.
Defective mirror
flame, exposure
lamp or scanner
wire.
Check if the mirror flames and exposure
lamp are on the rail. And check the scanner
wire winds correctly.
C3200 Exposure lamp problem
• Check the CCD input value for the
lighting status of the exposure lamp
500 ms after the exposure lamp is lit
and the carriage is moved to the shad-
ing position. If the exposure lamp does
not light, a further 100 ms later, check
the CCD input. The exposure lamp
does not light after 50 retries.
Defective scanner
PWB.
Replace the scanner PWB and check for
correct operation.
Defective exposure
lamp or inverter
PWB.
Replace the exposure lamp or inverter
PWB.
Incorrect shading
position.
Adjust the position of the contact glass
(shading plate). If the problem still occurs,
replace the scanner home position switch.
Poor contact of the
connector termi-
nals.
Check the connection of connectors YC3,
YC4 and YC5 on the scanner PWB, YC5,
YC6 and YC8 on the SHD PWB and YC1,
YC2 and YC3 on the CCD PWB, and the
continuity across the connector terminals.
Repair or replace if necessary.
Defective CCD
PWB.
Replace the CCD PWB and check for cor-
rect operation.
Code Contents
Remarks
Causes Check procedures/corrective measures