Electrical Problems; The Drive Motor Does Not Operate (C200); The Scanner Motor Does Not Operate; The Toner Feed Motor Does Not Operate - Kyocera Mita KM-1530 Service Manual

1-5-4 Electrical problems

Problem
(1) No electricity at the power
The machine does outlet.
not operate when
The power cord is not
the main switch is
plugged in properly.
turned on.
The front cover, paper
conveying unit and/or
lower drawer left cover*
are/is not closed
completely.
Broken power cord.
Defective main switch.
Blown fuse in the power
source PCB.
Defective safety switch 1,
2 or 3*
Defective power source
PCB.
(2) Poor contact in the drive
The drive motor motor connector terminals.
does not operate
Broken drive motor gear.
(C200).
Defective drive motor.
(3) Broken scanner motor coil.
The scanner motor
does not operate.
Poor contact in the
scanner motor connector
terminals.
(4) Broken toner feed motor
The toner feed coil.
motor does not
Poor contact in the toner
operate.
feed motor connector
terminals.
(5) Broken cooling fan motor 1
Cooling fan motor 1 coil.
does not operate.
Poor contact in the cooling
fan motor 1 connector
terminals.
(6) Broken cooling fan motor 2
Cooling fan motor 2 coil.
does not operate.
Poor contact in the cooling
fan motor 2 connector
terminals.
*1: Optional for 15 cpm copier.
*4: Optional for both 20 cpm and 15 cpm copiers.
Causes
Measure the input voltage.
Check the contact between the power plug and the outlet.
Check the front cover, paper conveying unit and lower drawer
left cover*
1
Check for continuity. If none, replace the cord.
Check for continuity across the contacts. If none, replace the
main switch.
Check for continuity. If none, remove the cause of blowing and
replace the fuse.
Check for continuity across the contacts of each switch. If none,
1
.
replace the switch.
With AC present, check for 3.3 V DC at CN3-9 on the power
source PCB, 5 V DC at CN3-5 and CN3-6, 12 V DC at CN4-3
and 24 V DC at CN3-1 and CN3-2. If none, replace the power
source PCB.
Reinsert the connector. Also check for continuity within the
connector cable. If none, remedy or replace the cable.
Check visually and replace the drive motor if necessary.
Run maintenance item U030 and check if the drive motor
operates when CN12-16 on the main PCB goes low. If not,
replace the drive motor.
Check for continuity across the coil. If none, replace the scanner
motor.
Reinsert the connector. Also check for continuity within the
connector cable. If none, remedy or replace the cable.
Check for continuity across the coil. If none, replace the toner
feed motor.
Reinsert the connector. Also check for continuity within the
connector cable. If none, repair or replace the cable.
Check for continuity across the coil. If none, replace cooling fan
motor 1.
Reinsert the connector. Also check for continuity within the
connector cable. If none, repair or replace the cable.
Check for continuity across the coil. If none, replace cooling fan
motor 2.
Reinsert the connector. Also check for continuity within the
connector cable. If none, repair or replace the cable.
*2: For 20 cpm copier only. *3: Optional for 220-240 V specifications of 15 cpm copier.
Check procedures/corrective measures
1
.
2AV/X
1-5
1-5-25