Kyocera 300ci Service Manual page 258

2JZ/2JX/2JV/2H7-1
Code
C2550 Paper conveying motor error
After the motor drive ON signal is output
and 2 s elapses, the rated speed reach
signal is not input continuously for 1 s.
C2600 PF paper conveying motor error
(optional paper feeder)
The lock signal of the motor is detected
above 450 ms.
C2700 Color release motor error
After driving of the color release motor
starts, the error signal is not at the H
level for 4 s continuously.
After driving of the color release motor
starts, the release signal does not turn to
the L level within 5 s.
C2810 Waste toner motor error
After driving of the waste toner motor
starts, the error signal is not at the H
level for 2 s continuously.
1-4-40
Contents
Causes Check procedures/corrective measures
Poor contact in the Check the connection of connector YC2 on
connector termi- the feed PWB and the connector on the
nals. paper conveying motor, and the continuity
across the connector terminals. Repair or
replace if necessary.
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 paper Run maintenance item U030 and check if
conveying motor. the motor operates. If not, replace the paper
conveying motor.
Defective PWB. Replace the feed PWB or engine PWB and
check for correct operation.
Poor contact in the Check the connection of connector YC27 on
connector termi- the engine PWB and the connector on the
nals. PF main PWB, and the continuity across the
connector terminals. Repair or replace if
necessary.
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 paper PF Replace the PF paper conveying motor.
paper conveying
motor.
Defective PWB. Replace the PF main PWB or engine PWB
and check for correct operation.
Poor contact in the Check the connection of connector YC28 on
connector termi- the engine PWB and the connector of the
nals. color release motor, and the continuity
across the connector terminals. Repair or
replace if necessary.
Defective color Replace the color release motor.
release motor.
Defective engine Replace the engine PWB and check for cor-
PWB. rect operation
Poor contact in the Check the connection of connector YC12 on
connector termi- the engine PWB and the connector of the
nals. waste toner motor, and the continuity across
the connector terminals. Repair or replace if
necessary.
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 waste Replace the waste toner motor.
toner motor.
Defective engine Replace the engine PWB and check for cor-
PWB. rect operation.
Remarks