Kyocera FS-1028MFP Service Manual

2H9
1-4-15
1-4-4 Electric problems
Problem Causes Check procedures/corrective measures
(1)The machine does
not operate when the
main power switch is
turned on.
No electricity at the power
outlet.
Measure the input voltage.
The power cord is not
plugged in properly.
Check the contact between the power plug and the outlet.
The top cover is not closed
completely.
Check the top cover.
Broken power cord. Check for continuity. If none, replace the cord.
Defective main power
switch.
Check for continuity across the contacts. If none, replace the
power source PWB (See page 1-5-42).
Blown fuse in the power
source PWB.
Check for continuity. If none, remove the cause of blowing and
replace the power source PWB (See page 1-5-42).
Defective interlock switch. Check for continuity across the contacts of interlock switch. If
none, replace the power source PWB (See page 1-5-42).
Defective power source
PWB.
Replace the power source PWB (See page 1-5-42).
Defective control PWB. Replace the control PWB (See page 1-5-39).
(2)Right cooling fan
motor does not oper-
ate.
Broken right cooling fan
motor coil.
Check for continuity across the coil. If none, replace the right cool-
ing fan motor.
Defective harness between
right cooling fan motor and
control PWB (YC27), or
improper connector inser-
tion.
Reinsert the connector. Also check for continuity within the con-
nector harness. If none, remedy or replace the harness.
Defective control PWB. Replace the control PWB (See page 1-5-39).
(3)Left cooling fan
motor does not oper-
ate.
Broken left cooling fan
motor coil.
Check for continuity across the coil. If none, replace the left cool-
ing fan motor.
Defective harness between
left cooling fan motor and
control PWB (YC104), or
improper connector inser-
tion.
Reinsert the connector. Also check for continuity within the con-
nector harness. If none, remedy or replace the harness.
Defective control PWB. Replace the control PWB (See page 1-5-39).
(4)Power source fan
motor does not oper-
ate.
Broken power source fan
motor coil.
Check for continuity across the coil. If none, replace the power
source fan motor.
Defective harness between
power source fan motor and
control PWB (YC107), or
improper connector inser-
tion.
Reinsert the connector. Also check for continuity within the con-
nector harness. If none, remedy or replace the harness.
Defective control PWB. Replace the control PWB (See page 1-5-39).
(5)Registration clutch
does not operate.
Broken registration clutch
coil.
Check for continuity across the coil. If none, replace the registra-
tion clutch.
Defective harness between
registration clutch and con-
trol PWB (YC20), or
improper connector inser-
tion.
Reinsert the connector. Also check for continuity within the con-
nector harness. If none, remedy or replace the harness.
Defective control PWB. Replace the control PWB (See page 1-5-39).

Kyocera FS-1028MFP Specifications

General

Duplex printing	Yes
Print technology	Laser
Maximum resolution	1200 x 1200 DPI
Time to first page (black, normal)	6 s
Print speed (black, normal quality, A4/US Letter)	28 ppm
Grayscale levels	256
Maximum copy resolution	600 x 600 DPI
Time to first copy (black, normal)	6.9 s
Internal memory	256 MB
Dimensions (WxDxH)	494 x 410 x 366 mm
Power requirements	220 - 240
All-in-one functions	Copy, Scan
Maximum internal memory	0.768 GB
Compatible operating systems	Windows 2000/XP/Server2003/Vista/7/Server2008
Duty cycle letter size (maximum)	2800 pages per month
Standard interfaces	USB 2.0
Power consumption (standby)	88 W
Power consumption (average operating)	494 W
Non-ISO print media sizes	Folio
Maximum duty cycle	20000 pages per month
Market positioning	Business