Kyocera TASKalfa 620 Service Manual page 178

2KN/2KP
Code
C1150 Side feeder lift motor going down
error (optional side feeder)
• Lower limit detection switch does not
turn off within 15 s of the side feeder
lift motor starting (within 200 ms during
paper feeding). This error is detected
four times successively.
C1200 Duplex side registration motor error
• The duplex side registration home
position sensor does not detect the
home position of the side registration
guide.
C2100 Developing motor error
• LOCK signal remains high for 1 s, 1 s
after the developing motor has turned
on.
C2200 Drive motor error
• LOCK signal remains high for 1 s, 1 s
after the drive motor has turned on.
1-4-34
Contents
Causes Check procedures/corrective measures
Poor contact of Reinsert the connector. Also check for conti-
lower limit detec- nuity within the connector cable. If none,
tion switch connec- repair or replace the cable.
tor terminals.
Defective side Replace the side feeder main PWB.
feeder main PWB.
Defective side Run maintenance mode U247 and measure
feeder lift motor. the voltage between terminals YC5-A12
(side-feeder main circuit board) and YC6-
B11. (Make sure all of LUSSW, UCSSW,
LLSSW and RCSSW are off.)
Despite either DC24V or DC-24V is
observed but if the side-feeder lift motor
does not operate, replace the side-feeder lift
motor.
Defective duplex Check the connection of connector YC29 on
side registration the engine PWB and the connector YC1 on
home position sen- the duplex PWB. Repair or replace if neces-
sor. sary.
Defective duplex Replace the duplex side registration motor.
side registration
motor.
Defective duplex Replace the duplex PWB.
PWB.
Poor contact in the Reinsert the connector. Also check for conti-
developing motor nuity within the connector cable. If none,
connector termi- remedy or replace the cable.
nals.
Defective develop- Replace the developing motor.
ing motor rotation
control circuit.
Defective drive Check if the rollers and gears rotate
transmission sys- smoothly. If not, grease the bushings and
tem. gears. Check for broken gears and replace if
any.
Defective duplex Replace the duplex PWB.
PWB.
Poor contact in the Check the connection of connector YC2 and
drive motor con- YC11 on the deck PWB. Reinsert the con-
nector terminals. nector. Also check for continuity within the
connector cable. If none, remedy or replace
the cable.
Defective drive Replace the drive motor.
motor rotation con-
trol circuit.
Defective drive Check if the rollers and gears rotate
transmission sys- smoothly. If not, grease the bushings and
tem. gears. Check for broken gears and replace if
any.
Defective deck Replace the deck PWB or the engine PWB.
PWB or engine
PWB.
Remarks