Kyocera FS-9120DN Service Manual

FS-9120DN/9520DN
1-5-39
Problem Causes Check procedures/corrective measures
(25)
The fuser heater
does not turn on
(C6000).
(26)
The fuser heater
does not turn off.
(27)
Main charging is not
performed.
(28)
Transfer charging is
not performed.
(29)
No developing bias
is output.
(30)
The message re-
questing paper to be
loaded is shown
when paper is
present in the upper
cassette.
(31)
The message re-
questing paper to be
loaded is shown
when paper is
present in the lower
cassette.
Broken wire in fuser heater
M or S.
Fuser unit thermostat trig-
gered.
Broken fuser unit ther-
mistor wire.
Dirty sensor part of the
fuser unit thermistor.
Broken main charger wire.
Leaking main charger
housing.
Poor contact in the high-
voltage transformer unit
connector terminals.
Defective engine controller
PWB.
Defective high- voltage
transformer unit.
Poor contact in the high-
voltage transformer unit
connector terminals.
Defective engine controller
PWB.
Defective high-voltage
transformer unit.
Defective engine controller
PWB.
Defective high-voltage
transformer unit.
Poor contact in the upper
paper switch connector
terminals.
Defective upper paper
switch.
Poor contact in the lower
paper switch connector
terminals.
Defective lower paper
switch.
Check for continuity across each heater. If none, replace the
heater M or S.
Check for continuity across thermostat. If none, remove the
cause and replace the thermostat.
Measure the resistance. If it is ∞ Ω, replace the fuser unit ther-
mistor.
Check visually and clean the thermistor sensor parts.
Replace the main charger unit.
Clean the main charger wire, grid and shield.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Replace the engine controller PWB (see page 1-6-24).
Replace the high-voltage transformer unit (see page 1-6-26).
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Replace the engine controller PWB (see page 1-6-24).
Replace the high-voltage transformer unit (see page 1-6-26).
Replace the engine controller PWB (see page 1-6-24).
Replace the high-voltage transformer unit (see page 1-6-26).
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Check if YC13-B12 on the engine controller PWB goes low
when the upper paper switch is turned on with 5 V DC present at
YC13-B13 on the engine controller PWB. If not, replace the up-
per paper switch.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Check if YC13-B18 on the engine controller PWB goes low
when the lower paper switch is turned on with 5 V DC present at
YC13-B19 on the engine controller PWB. If not, replace the
lower paper switch.

Kyocera FS-9120DN Specifications

General

I/O ports	1 x Fast Ethernet 10/100 Base TX; 1 x High speed bi-directional parallel (IEEE 1284); 1 x USB 2.0 (High-Speed); 1 x KUIO LV Option-Interface slot.
Custom media sizes	88 x 148 mm - 297 x 450 mm
Power requirements	AC 220/240 V 50/60 Hz
Standard input trays	2 x 500
Recommended media weight	60 - 105 g/m²
Power consumption (active)	920 W
Maximum print size	297 x 420 mm
Maximum ISO A-series paper size	A3
Color	No
Print technology	Laser
Time to first page (black, normal)	7 s
Print speed (black, normal quality, A4/US Letter)	36 ppm
Memory slots	2
Storage media	HDD
Processor model	Power PC 750CX
Built-in processor	Yes
Maximum internal memory	544 MB
Internal storage capacity	20 GB
Sound power level (standby)	39 dB
Sound pressure level (printing)	53 dB
Total input capacity	1200 sheets
Maximum input capacity	4200 sheets
Paper tray 2 input capacity	200 sheets
Maximum duty cycle	55000 pages per month
Sustainability certificates	ENERGY STAR
Power consumption (standby)	160 W
Power consumption (PowerSave)	12 W

Weight and Dimensions

Dimensions (WxDxH)	585 x 639 x 615 mm