Kyocera FS 1100 Service Manual - Page 50

2H5/2HS

1-4-14

1-4-4

Electric problems

Problem

Causes

Check procedures/corrective measures

(1)The machine does

not operate when the

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 power switch.

Check for continuity across the contacts. If none, replace the

power source PWB (See page 1-5-22).

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 1-5-22).

Defective interlock switch.

Check for continuity across the contacts of interlock switch. If

none, replace the power source PWB (See page 1-5-22).

Defective power source

PWB.

Replace the power source PWB (See page 1-5-22).

Defective control PWB.

Replace the control PWB (See page 1-5-19).

(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 (YC315), or

improper connector inser-

tion.

Reinsert the connector. Also check for continuity within the con-

nector harness. If none, remedy or replace the harness.



(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.


left cooling fan motor and

control PWB (YC104), or


tion.





(4)Registration clutch

does not operate.

Broken registration clutch

coil.

Check for continuity across the coil. If none, replace the registra-

tion clutch.


registration clutch and con-

trol PWB (YC308), or


tion.





(5)Paper feed clutch

does not operate.

Broken paper feed clutch

coil.

Check for continuity across the coil. If none, replace the paper

feed clutch.


paper feed clutch and con-

trol PWB (YC308), or


tion.





Section	Page
Cover	1
Revision history	3
Safety precautions	5
CONTENTS	11
Specifications	13
1-1-1 Specifications	13
1-1-2 Parts names	15
(1) Overall	15
(2) Operation panel	16
1-1-3 Machine cross section	17
Installation	19
1-2-1 Installation environment	19
1-2-2 Unpacking	20
(1) Removing the tapes	21
1-2-3 Installing the expanded memory (option)	22
1-2-4 Installing the memory card (optional)	23
1-2-5 Installing the network interface card (optional)	24
Maintenance Mode	25
1-3-1 Maintenance mode	25
(1) Executing a service mode	25
Troubleshooting	37
1-4-1 Paper misfeed detection	37
(1) Paper misfeed indication	37
(2) Paper misfeed detection condition	38
1-4-2 Self-diagnostic function	39
(1) Self-diagnostic function	39
(2) Self diagnostic codes indication	40
(3) Self diagnostic codes	41
1-4-3 Image formation problems	45
(1) Completely blank printout.	46
(2) All-black printout.	46
(3) Dropouts.	47
(4) Black dots.	47
(5) Black horizontal streaks.	47
(6) Black vertical streaks.	48
(7) Unsharpness.	48
(8) Gray background.	48
(9) Dirt on the top edge or back of the paper.	49
(10) Undulated printing at the right edge (scanning start position).	49
1-4-4 Electric problems	50
1-4-5 Mechanical problems	52
Assembly and Disassembly	53
1-5-1 Precautions for assembly and disassembly	53
(1) Precautions	53
(2) Drum	53
(3) Toner container	53
(4) How to tell a genuine Kyocera Mita toner container	54
1-5-2 Outer covers	55
(1) Detaching and refitting the top cover	55
(2) Detaching and refitting the right and left covers	56
1-5-3 Paper feed section	58
(1) Detaching and refitting the paper feed assembly (paper feed roller and pickup roller)	58
(2) Detaching and refitting the retard roller assembly	60
(3) Detaching and refitting the MP paper feed roller (Duplex model only)	62
1-5-4 Developing section	63
(1) Detaching and refitting the developing unit	63
1-5-5 Drum section	64
(1) Detaching and refitting the drum unit	64
(2) Detaching and refitting the main charger unit	65
1-5-6 Transfer/separation section	66
(1) Detaching and refitting the transfer roller	66
1-5-7 Fuser section	68
(1) Detaching and refitting the fuser unit	68
(2) Switching the fuser pressure	70
1-5-8 PWBs	71
(1) Detaching and refitting the control PWB	71
(2) Detaching and refitting the power source PWB	74
(3) Detaching and refitting the operation panel PWB	76
(4) Detaching and refitting the high voltage PWB	77
1-5-9 Others	81
(1) Detaching and refitting the main motor	81
(2) Detaching and refitting the laser scanner unit	82
(3) Detaching and refitting the eraser lamp	84
(4) Direction of installing the left and right cooling fan motors	85
Firmware	87
1-6-1 Downloading firmware	87
(1) Downloading the firmware from the memory card	88
Mechanical Construction	91
2-1-1 Paper feed/conveying section	91
(1) Cassette paper feed section	91
(2) MP tray paper feed section	92
(3) Paper conveying section	94
2-1-2 Drum section	95
(1) Drum section	95
(2) Main charger unit	96
2-1-3 Expose section	97
(1) Laser scanner unit	97
2-1-4 Developing section	99
2-1-5 Transfer/separation section	100
2-1-6 Cleaning section	101
2-1-7 Fuser section	102
2-1-8 Paper exit section	104
2-1-9 Duplex/conveying section (duplex model only)	106
Electrical Parts Layout	107
2-2-1 Electrical parts layout	107
(1) PWBs	107
(2) Switches and sensors	109
(3) Other electrical components	110
Operation of the PWBs	111
2-3-1 Power source PWB	111
2-3-2 Control PWB	113
Appendixes	117
2-4-1 Appendixes	117
(1) Wiring diagram	117
(2) Repetitive defects gauge	119
(3) Self diagnostic codes indication (Animation)	120

Kyocera FS 1100 Service Manual - Page 50

Electric problems, Problem, Causes, Check procedures/corrective measures

Page 50 highlights