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Kyocera FS-C5016N Service Manual - Page 143

(2) Drum unit, developer unit and fuser unit, Drum PWB 1

UPC - 632983002629

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(2) Drum unit, developer unit and fuser unit FS-C5016N 2 1 @ 4 5 39 67 ! 0# $ % 8 ^ DRUM UNIT DEVELOPER UNIT FUSER UNIT Figure 2-2-2 Drum unit, developer unit and fuser unit 1. Drum PWB 1, 2, 3, 4 Drum PWB 1 (magenta), drum PWB 2 (cyan), drum PWB 3 (yellow), drum PWB 4 (black) wiring relay circuit inside each color drum unit. Drum individual information in EEPROM storage. 2. Zener PWB 1, 2, 3, 4 Adjusts the main charger grid electrostatic potential. 3. Fuser PWB Relays wirings from electrical components on the fuser unit. 4. LED print head memory PWB 1, 2, 3, 4....... LED print head memory PWB 1 (magenta), LED print head memory PWB 2 (cyan), LED print head memory PWB 3 (yellow), LED print head memory PWB 4 (black) storage of compensation data of each color LED print head of each drum unit. 5. Eraser lamp 1, 2, 3, 4 Eliminates the residual electrostatic charge on the drum. 6. Toner sensor 1, 2, 3, 4 Measures the toner concentration in the toner hopper. 7. Fuser thermistor 1 Detects the temperature of the heat roller. 8. Fuser thermistor 2 Detects the temperature of the press roller. 9. Exit sensor Detects paper misfeed in the ﬁxing unit. 10. Rear cover open/close sensor Detects the rear cover open. 11. Face up/down solenoid Switches the output stack between face up and face down. 12. LED print head 1, 2, 3, 4 LED print head 1 (magenta), LED print head 2 (cyan), LED print head 3 (yellow), LED print head 4 (black) lighting of dot light to drum of each color drum unit. 13. Fuser heater lamp 1 Heats the heat roller. 14. Fuser heater lamp 2 Heats the press roller. 15. Fuser thermostat 1 Disable power for the fuser heater lamp 1 in emergency. 16. Fuser thermostat 2 Disable power for the fuser heater lamp 2 in emergency. 2-2-3

Section	Page
Cover	1
Revision history	2
Safety precautions	3
Safety warnings and precautions	4
1. Installation Precautions	5
2. Precautions for Maintenance	6
3. Miscellaneous	7
CONTENTS	9
1-1 Specifications	13
1-1-1 Specifications	13
1-1-2 Parts names	15
(1) Overall	15
(2) Operation panel	16
1-1-3 Cross section view	17
1-2 Handling Precautions	19
1-2-1 Drum unit	19
1-2-2 Installation environment	19
1-3 Installation environment	21
1-3-1 Unpacking and installation	21
(1) Installation procedure	21
1-3-2 Installing expansion memory (optional)	27
1-3-3 Installing a memory card (optional)	28
1-3-4 Installing the network interface card (optional)	29
1-3-5 Installing the hard disk unit (optional)	30
1-4 Service mode	31
1-4-1 Service mode	31
(1) Executing service mode	31
1-4-2 Maintenance	44
(1) Method of removing the toner soiling which comes in contact with heat roller and Press roller	44
1-5 Troubleshooting	45
1-5-1 Paper misfeed detection	45
(1) Paper misfeed indication	45
(2) Paper misfeed message display	45
1-5-2 Self-diagnosis	46
(1) Self-diagnostic function	46
(2) Self-diagnostic code	47
1-5-3 Electrical problems	62
1-5-4 Image formation problems	65
1-6 Assembly and Disassembly	73
1-6-1 Precautions for assembly and disassembly	73
(1) Precautions	73
1-6-2 Outer covers	74
(1) Detaching and refitting the top cover	74
(2) Detaching and refitting the rear cover	74
(3) Detaching and refitting the right cover	75
(4) Detaching and refitting the left cover	76
1-6-3 Paper feed unit	77
(1) Detaching and refitting the paper feed unit	77
(2) Detaching and refitting the paper feed roller	78
(3) Detaching and refitting the retard roller	79
(4) Detaching and refitting the secondary transfer roller	80
1-6-4 MP tray feed unit	81
(1) Detaching and refitting the MP tray feed unit	81
(2) Detaching and refitting the MP tray feed roller	82
1-6-5 Developing section	83
(1) Detaching and refitting the developer unit	83
1-6-6 Drum section	84
(1) Detaching and refitting the drum unit	84
(2) Detaching and refitting the LED print heads	85
1-6-7 Primary transfer section	86
(1) Detaching and refitting the primary transfer unit	86
(2) Detaching and refitting the primary transfer belt	87
(3) Detaching and refitting the primary transfer cleaning unit	88
1-6-8 Fuser unit	89
(1) Detaching and refitting the fuser unit	89
(2) Detaching and refitting the fuser thermistor 1 and 2, fuser thermostat 1 and 2, fuser heater lamp 1 and 2, heat roller, and press roller	90
1-6-9 PWBs	96
(1) Detaching and refitting the main controller PWB	96
(2) Detaching and refitting the engine controller PWB and power supply PWB	97
(3) Detaching and refitting the LED print heads relay PWB	100
(4) Detaching and refitting the main high voltage PWB	101
(5) Detaching and refitting the bias high voltage PWB	102
1-6-10 Others	103
(1) Detaching and refitting the main drive unit	103
(2) Detaching and refitting the paper feed drive unit	104
(3) Detaching and refitting the fuser drive unit	105
(4) Detaching and refitting the toner motor 1, 2, 3 and 4	106
(5) Detaching and refitting the ozone filters	107
(6) Detaching and refitting the waste toner duct	108
1-7 Firmware	109
1-7-1 Downloading firmware	109
(1) Format of the firmware files	109
(2) Downloading firmware via the parallel interface	110
(3) Downloading firmware using the memory card	111
(4) Downloading the message data	113
2-1 Mechanical construction	115
2-1-1 Paper feed section	115
(1) Paper feeding from paper cassette	115
(2) Paper feeding from MP tray	119
2-1-2 Developing section	121
(1) Developer	121
(2) Touch down developing method	123
2-1-3 Drum section	124
(1) Drum unit	124
(2) Waste toner ejecting mechanism	127
(3) LED print head	128
(4) Main charger unit	130
2-1-4 Primary transfer section	132
(1) Primary transfer unit	132
(2) Primary transfer cleaning unit	134
2-1-5 Secondary transfer and separation section	137
2-1-6 Fuser section	139
(1) Fuser unit	139
2-2 Electrical Parts Layout	141
2-2-1 Electrical parts layout	141
(1) Main frame and controller box	141
(2) Drum unit, developer unit and fuser unit	143
2-3 Operation of the PWBs	145
2-3-1 Power supply PWB	145
2-3-2 Engine controller PWB	147
(1) Fuser heater lamps control circuit	148
(2) Interlock and 24 V DC power supply circuit	149
2-3-3 Main controller circuit	155
2-4 Appendixes	157
2-4-1 Appendixes	157
(1) Timing chart No. 1 Paper cassette, A4 size	157
(2) Timing chart No. 2 Paper cassette,Legal size	158
(3) Timing chart No. 3 Paper cassette, Letter size papers	159
(4) Timing chart No. 4 MP tray, A4 size	160
(5) Timing chart No. 5 MP tray, Legal size	161
(6) Timing chart No. 6 MP tray, Letter size	162
(7) Timing chart No. 7 Optional paper feeder Two A4 size papers	163
(8) Timing chart No. 8 Paper cassette , A4 size, Slow mode 1 [75 %]	164
(9) Timing chart No. 9 Paper cassette, A4 size, Slow mode 2 [55 %]	165
(10) Timing chart No. 10 MP tray, A4 size, Transparency	166
(11) Wiring diagram	167
(12) Repetitive defects gauge	169

Match case Limit results 1 per page

FS-C5016N

2-2-3

(2) Drum unit, developer unit and fuser unit

Figure 2-2-2

Drum unit, developer unit and fuser unit

Drum PWB 1, 2, 3, 4

....................................

Drum PWB 1 (magenta), drum PWB 2 (cyan), drum PWB 3 (yellow),

drum PWB 4 (black) wiring relay circuit inside each color drum unit. Drum

individual information in EEPROM storage.

Zener PWB

1, 2, 3, 4

..................................

Adjusts the main charger grid electrostatic potential.

Fuser PWB

...................................................

Relays wirings from electrical components on the fuser unit.

LED print head memory PWB 1, 2, 3, 4

.......

LED print head memory PWB 1 (magenta), LED print head memory

PWB 2 (cyan), LED print head memory PWB 3 (yellow), LED print head

memory PWB 4 (black) storage of compensation data of each color LED

print head of each drum unit.

Eraser lamp 1, 2, 3, 4

...................................

Eliminates the residual electrostatic charge on the drum.

Toner sensor 1, 2, 3, 4

.................................

Measures the toner concentration in the toner hopper.

Fuser thermistor 1

........................................

Detects the temperature of the heat roller.

Fuser thermistor 2

........................................

Detects the temperature of the press roller.

Exit sensor

...................................................

Detects paper misfeed in the

ﬁ

xing unit.

10.

Rear cover open/close sensor

.....................

Detects the rear cover open.

11.

Face up/down solenoid

................................

Switches the output stack between face up and face down.

12.

LED print head 1, 2, 3, 4

..............................

LED print head 1 (magenta), LED print head 2 (cyan), LED print head 3

(yellow), LED print head 4 (black) lighting of dot light to drum of each

color drum unit.

13.

Fuser heater lamp 1

.....................................

Heats the heat roller.

14.

Fuser heater lamp 2

.....................................

Heats the press roller.

15.

Fuser thermostat 1

.......................................

Disable power for the fuser heater lamp 1 in emergency.

16.

Fuser thermostat 2

.......................................

Disable power for the fuser heater lamp 2 in emergency.

DRUM UNIT

DEVELOPER UNIT

FUSER UNIT