Kyocera FS-C8026N User manual

SERVICE
MANUAL
Published in November 2004
842BF115
2BFSM065
Revision 5
FS-C8026N

2BF-5
CONTENTS
1-1 Specifications
1-1-1 Specifications..........................................................................................................................................1-1-1
1-1-2 Parts names............................................................................................................................................1-1-3
(1) Printer................................................................................................................................................1-1-3
(2) Operation panel.................................................................................................................................1-1-4
1-1-3 Cross section view..................................................................................................................................1-1-5
1-2 Handling Precautions
1-2-1 Drum (process unit) ................................................................................................................................1-2-1
1-2-2 Installation environment..........................................................................................................................1-2-1
1-3 Installation
1-3-1 Unpacking and installation.....................................................................................................................1-3-1
(1) Installation procedure........................................................................................................................1-3-1
1-3-2 Installing expansion memory (optional) ................................................................................................1-3-10
1-3-3 Installing a memory card (optional).......................................................................................................1-3-11
1-3-4 Installing the network interface card (optional) .....................................................................................1-3-12
1-3-5 Installing the hard disk unit (optional) ...................................................................................................1-3-13
1-3-6 Installing the dehumidifier heater (optional)..........................................................................................1-3-14
1-4 Maintenance Mode
1-4-1 Service mode..........................................................................................................................................1-4-1
(1) Executing service mode....................................................................................................................1-4-1
1-4-2 Maintenance mode ...............................................................................................................................1-4-12
(1) Maintenance mode..........................................................................................................................1-4-12
1-5 Troubleshooting
1-5-1 Paper misfeed detection.........................................................................................................................1-5-1
(1) Paper misfeed indication...................................................................................................................1-5-1
(2) Paper misfeed detection....................................................................................................................1-5-2
1-5-2 Self-diagnosis .........................................................................................................................................1-5-3
(1) Self-diagnostic function.....................................................................................................................1-5-3
(2) Self diagnostic codes ........................................................................................................................1-5-4
1-5-3 Electric problems ..................................................................................................................................1-5-26
1-5-4 Image formation problems....................................................................................................................1-5-36
1-5-5 Mechanical problems............................................................................................................................1-5-46
1-6 Assembly and Disassembly
1-6-1 Precautions for assembly and disassembly............................................................................................1-6-1
(1) Precautions .......................................................................................................................................1-6-1
1-6-2 Outer covers ...........................................................................................................................................1-6-2
(1) Detaching and refitting the top cover.................................................................................................1-6-2
(2) Detaching and refitting the rear cover...............................................................................................1-6-5
(3) Detaching and refitting the left cover (left cover assembly)...............................................................1-6-6
1-6-3 Primary paper feed unit...........................................................................................................................1-6-7
(1) Detaching and refitting the primary paper feed unit ..........................................................................1-6-7
(2) Detaching and refitting the paper feed roller.....................................................................................1-6-9
(3) Detaching and refitting the lower paper feed pulley........................................................................1-6-10
1-6-4 MP tray feed unit...................................................................................................................................1-6-11
(1) Detaching and refitting the MP tray feed roller and MP tray retard roller........................................1-6-11
1-6-5 Transfer unit..........................................................................................................................................1-6-12
(1) Detaching and refitting the transfer unit..........................................................................................1-6-12
1-6-6 Process section.....................................................................................................................................1-6-13
(1) Detaching and refitting the process unit..........................................................................................1-6-13
(2) Detaching and refitting the drum unit and developer.......................................................................1-6-15
1-6-7 Fuser unit..............................................................................................................................................1-6-17
(1) Detaching and refitting the fuser unit...............................................................................................1-6-17
(2) Detaching and refitting the upper and lower fuser thermistors, upper and lower fuser thermostats,
upper and lower fuser heater lamps and upper and lower fuser rollers..........................................1-6-18

2BF-5
1-6-8 PWBs....................................................................................................................................................1-6-25
(1) Detaching and refitting the main controller PWB.............................................................................1-6-25
(2) Detaching and refitting the engine controller PWB..........................................................................1-6-26
(3) Detaching and refitting the power supply PWB...............................................................................1-6-27
(4) Detaching and refitting the main high voltage PWB........................................................................1-6-29
(5) Detaching and refitting the bias high voltage PWB.........................................................................1-6-30
(6) Detaching and refitting the LPH drive PWB ....................................................................................1-6-31
(7) Detaching and refitting the front relay PWB....................................................................................1-6-32
1-6-9 Others...................................................................................................................................................1-6-33
(1) Detaching and refitting the developing MCY motor.........................................................................1-6-33
(2) Detaching and refitting the drum motors K, M, C and Y..................................................................1-6-34
(3) Detaching and refitting the toner motors K, M, C and Y..................................................................1-6-35
(4) Detaching and refitting the cassette lift motor.................................................................................1-6-36
(5) Detaching and refitting the paper feed motor..................................................................................1-6-37
(6) Detaching and refitting the paper feed drive unit.............................................................................1-6-38
(7) Detaching and refitting the developing K/fuser motor .....................................................................1-6-39
(8) Detaching and refitting the ozone filter............................................................................................1-6-40
(9) Detaching and refitting the LED print head.....................................................................................1-6-41
(10) Adjusting the focus of the LED print head.......................................................................................1-6-44
2-1 Mechanical construction
2-1-1 Paper feed section..................................................................................................................................2-1-1
(1) Paper cassette, primary paper feed unit and paper feeder feed section...........................................2-1-1
(2) MP tray feed unit and paper feed unit...............................................................................................2-1-3
2-1-2 Process section.......................................................................................................................................2-1-5
(1) Developers and drum unit.................................................................................................................2-1-5
(2) Main charger unit...............................................................................................................................2-1-7
(3) LED print head ..................................................................................................................................2-1-8
2-1-3 Transfer section....................................................................................................................................2-1-10
(1) Transfer unit....................................................................................................................................2-1-10
2-1-4 Fuser section ........................................................................................................................................2-1-14
(1) Fuser unit ........................................................................................................................................2-1-14
2-1-5 Exit section............................................................................................................................................2-1-16
(1) Eject unit and face-down exit section..............................................................................................2-1-16
2-2 Electrical Parts Layout
2-2-1 Electrical parts layout..............................................................................................................................2-2-1
(1) Main front, upper, left, inner and paper cassette...............................................................................2-2-1
(2) Main rear...........................................................................................................................................2-2-3
(3) Main right and primary paper feed unit..............................................................................................2-2-5
(4) Paper feed unit, MP tray unit and transfer unit..................................................................................2-2-6
(5) Process unit and fuser unit................................................................................................................2-2-7
2-3 Operation of the PWBs
2-3-1 Power supply PWB.................................................................................................................................2-3-1
2-3-2 Engine controller PWB............................................................................................................................2-3-4
2-4 Appendixes
2-4-1 Appendixes.............................................................................................................................................2-4-1
(1) Timing chart No.1 From the power switch turned on to machine stabilization..................................2-4-1
(2) Timing chart No.2 Cassette paper feeding, Color printing, Paper size A4........................................2-4-2
(3) Timing chart No.3 Cassette paper feeding, Color printing, Paper size A3........................................2-4-3
(4) Timing chart No.4 MP tray paper feeding, Color printing, Paper size A4..........................................2-4-4
(5) Timing chart No.5 MP tray paper feeding, Color printing, Paper size A3..........................................2-4-5
(6) Timing chart No.6 Paper feeder PF-645 lower cassette paper feeding, Color printing,
Paper size A4....................................................................................................................................2-4-6
(7) Timing chart No.7 Paper feeder PF-645 lower cassette paper feeding, Color printing,
Paper size A3....................................................................................................................................2-4-7
(8) Wiring diagram..................................................................................................................................2-4-8
(9) Maintenance kits ...............................................................................................................................2-4-9

2BF-5
1-1-1
1-1-1 Specifications
Type................................................Floor
Printing system...............................Electrophotographic printing (tandem)
Printing paper .................................Weight
Cassette: 60 to 105 g/m2
MP tray: 60 to 220 g/m2 (135 to 200 g/m2 paper should be A4 or Letter size and fed
lateralley.)
Type
Cassette: Plain paper, recycled paper, thick paper, thin paper
MP tray: Plain paper, recycled paper, thick paper, thin paper, special paper (transpar-
encies, labels, envelopes, postcards, tracing paper)
Paper sizes.....................................A4 (210 ×297 mm)
A3 (297 ×420 mm)
B4 (257 ×364 mm)
B5 (182 ×257 mm)
A5 (148 ×210 mm)
Letter (81/2" ×11")
Legal (81/2" ×14")
Ledger (11" ×17")
Non-standard size (148 to 297 mm ×210 to 420 mm: cassette), (70 to 305 mm ×148
to 457 mm: MP tray)
Print speeds....................................Cassette (Values within [ ] are for duplex printing using the optional duplex unit
DU-640*.)
A4: 26 pages/minutes [24.5 pages/minutes]
B4: 13 pages/minutes [13 pages/minutes]
A3: 13 pages/minutes [13 pages/minutes]
Letter: 26 pages/minutes [24.5 pages/minutes]
Legal: 13 pages/minutes [13 pages/minutes]
Ledger: 11 pages/minutes [11 pages/minutes]
MP tray (in cassette mode)
A4: 24 pages/minutes
B4: 13 pages/minutes
A3: 13 pages/minutes
Letter: 24 pages/minutes
Legal: 13 pages/minutes
Ledger: 11 pages/minutes
First print time.................................Standby mode: 9.0 seconds or less (A4)
Warm-up time .................................Sleep mode: 179 seconds or less (room temperature 23 °C, 60% RH)
Paper feed system..........................One universal cassette and one MP tray
Paper loading capacity ...................Cassette: 500 sheets (80 g/m2, 0.11 mm)
MP tray: 150 sheets (80 g/m2, 0.11 mm)
Paper eject system............................Face down: 500 sheets (80 g/m
2
, 0.11 mm), equipped with a face-down paper full sensor
Face up: 150 sheets, Optional face-up tray PT-640 must be installed
Photoconductor...............................a-Si drum (diameter 30 mm)
Charging system.............................Scorotron (positive charging)
Light source....................................LED (Advanced Beam Array)
Developing system .........................Dual component dry developing method
Toner replenishing: Automatic from the toner container
Transfer system..............................Primary transfer: Transfer belt
Secondary transfer: Transfer roller
Separation system..........................Small diameter separation
Fuser system..................................Heat roller system (Oil-less)
Heat roller (diameter 45mm, 600 W halogen heater lamp)
Pressure roller (diameter 45mm, 400 W halogen heater lamp)
Charge erasing system...................Exposure by eraser lamp (LED)
Cleaning system.............................Drum: Counter blade
Primary transfer belt: Collecting to the drum by applying the reverse transfer bias

2BF-5
1-1-2
Controller hardware........................CPU: Power PC750CXe (600 MHz)
System ROM: 4 MB
Font ROM: 4 MB (32 Mbit ×1)
Main RAM: 128 MB standard (on-board); expanding up to 512 MB (256 MB ×2) at the
maximum by adding optional expansion memory
Optional expansion RAM (DIMM): 1 slot
168-pin DIMM (64, 128 or 256 MB)
Interface..........................................Parallel: High-speed (bi-directional), IEEE 1284 Compatible/Nibble/ECP mode
Optional interface (KUIO-LV) ×1: Network interface card IB-20 (10 Base-TX/100
Base-TX/10 Base-2), IB-21E (10 Base-TX/100 Base-TX), wireless LAN card IB-22
must be installed.
Controller software..........................a) Emulation
PCL6 (PCL5, PCL5e and PCL-XL)
KPDL3 (PostScript 3 compatible)
KCGL
b) Fonts:
Bitmap font:
1 Line Printer bitmap font
Outline fonts:
80 PCL fonts
136 KPDL3 fonts:
c) Graphic:
(1) Raster graphic:
75, 100, 150, 200*, 300, 600* dpi
(*200 dpi is supported when the resolution is 600 dpi.)
(2) Vector graphic:
Line, Box, Circle, Arc, Fill pattern etc.
(3) Bar code:
One-dimensional bar code: 45 types
Two o-dimensional bar code: 1 type (PDF-417)
(4) Text:
(5) Others:
d) Connectivity
plug & play, Windows 95/98/ME/NT4.0/2000/XP
SNMP (KM-NET viewer)
Resolution.......................................600 ×600 dpi (multi 4-bit)
Dimensions.....................................Main unit: 699 ×715 ×463 mm/27.52" ×28.15" ×18.23" (W ×D ×H)
Weight.............................................Main unit: 84.3 kg/186.3 lbs (not including toner containers)
Power source..................................220 - 240 V AC, 50/60 Hz (European countries), 120 V AC, 60 Hz (U.S.A./Canada)
Power consumption........................Maximum: 1450 W (220 - 240 V model), 1350 W (120 V model)
Normal operating: 700 W (220 - 240 V model), 700 W (120 V model)
Ready: 165 W (220 - 240 V model), 165 W (120 V model)
EcoPower: 30 W (220 - 240 V model), 30 W (120 V model)
Current............................................6.5 A (220 - 240 V model), 12.5 A (120 V model)
Noise...............................................Printing: 53 dB(A), Ready: 39 dB(A)
Options ...........................................Expansion memory (64/128/256 MB 168-pin DIMM),
memory card (Compact Flash),
hard disk unit HD-10* (20 GB),
network interface card IB-20 (10 BASE-T/100BASE-TX/10BASE-2),network interface
card IB-21E (10BASE-T/100BASE-TX), wireless LAN card IB-22 (compatible to
IEEE802.11b),
serial interface board IB-11, (Maximum: 115 kbps),
paper feeder PF-640 (500 sheets [60 to 105 g/m2] ×1 cassette, A3, B4, A4, A5, B5,
ledger, legal, letter, custom),
paper feeder PF-645 (500 sheets [60 to 105 g/m2] ×3 cassettes, A3, B4, A4, A5, B5,
ledger, legal, letter, custom),
paper feeder PF-647 (500 sheets [60 to 105 g/m2] ×1 cassette, 1000 sheets [60 to
105 g/m2] ×1 deck, 1500 sheets [60 to 105 g/m2] ×1 deck, A3, B4, A4, A5, B5, led-
ger, legal, letter, custom),
duplex unit DU-640*,
face-up output tray PT-640 (150 sheets),
caster kit CA-33, dehumidifier heater
*Standard equipment for 120 V (U.S.A.) specifications

2BF-5
1-1-3
1-1-2 Parts names
(1) Printer
Figure 1-1-1
11
10
8
1
2
9
21
20
13
22
18
23
30
29
4
3
12
19
5
6
7
14
16 15
13
24
25
28
27
26
1. Operation panel
2. Front cover
3. Right cover 1
4. Right cover 2
5. MP tray
6. Paper feed unit
7. Transfer unit
8. Waste toner box
9. Toner container cover
10. Black toner container
11. Yellow toner container
12. Cyan toner container
13. Magenta toner container
14. Black main charger unit
15. Yellow main charger unit
16. Cyan main charger unit
17. Magenta main charger unit
18. Paper cassette
Duplex unit*
19. Left cover
20. Fuser unit
21. Face-down exit tray
22. Power switch
23. Paper stopper
24. Memory card slot
25. Parallel interface connector
26. Network interface connector
27. Optional interface slot (OPT1/HDD)
28. Optional interface slot (OPT2)
29. Filter
30. Ozone filter cover
*120 V (U.S.A.) specifications only.

PARTS LIST
Published in December 2005
2BFPL076 842BF126
Rev.7
Ecosys FS-C8026N
Color Laser Printer

NOTES
1.Indicate parts number and machine model when placing an order.
e.g. Parts Number Parts Name Machine Model Cycle Quantity
2BF04210 COVER FRONT F FS-C8026N 50Hz 1
2BF04210 COVER FRONT F FS-C8026N 60Hz 1
2.Service calls and freight will be charged separately.
3.Symbols in the "Parts Number" column.
• Parts with "'" indicates the spare parts and the parts without "'" can not be supplied.
• Parts with "•" are component parts or sub-assemblies of the assembly appearing immediately above them.
e.g. Parts Number Parts Name Parts Number Parts Name
2BF93112 PARTS,DK-810 •2BG14410 SPRING DS F
•2BG14420 SPRING DS R
• Parts with "••" are component parts or sub-assembly with "•" appearing immediately above them.
e.g. Parts Number Parts Name Parts Number Parts Name
•2BM07400 RETARD ROLL MPF ASSY ••2BM07280 HOLDER RETARD MPF
••2BM07340 RETARD ROLL ASSY
4.Items indicated in Description column as (OPTION) are supply parts and should be ordered through your Regional Office.

- 1 -
CONTENTS
FIG. 1 Exterior Covers........................................................... 2
FIG. 2 Upper Frame Unit 1 ................................................... 4
FIG. 3 Upper Frame Unit 2.................................................... 6
FIG. 4 Paper cassette............................................................ 8
FIG. 5 Primarry Feed Assembly.......................................... 10
FIG. 6 Paper feed unit 1...................................................... 12
FIG. 7 Paper feed unit 2...................................................... 14
FIG. 8 Primarry Transfer Unit .............................................. 16
FIG. 9 Process unit & Packing Assemblies......................... 18
FIG. 10 Fuser Unit................................................................. 20
FIG. 11 Exit Unit 1................................................................. 22
FIG. 12 Exit Unit 2..................................................................24
FIG. 13 Drive Units 1..............................................................26
FIG. 14 Drive Units 2..............................................................28
FIG. 15 Electrical components 1............................................30
FIG. 16 Electrical components 2............................................32
FIG. 17 Operation Unit & Maintenance Kits...........................34
FIG. 18 Option 1 ....................................................................36
FIG. 19 Option 2 (AK-640A)...................................................38
FIG. 20 Option 3 (AK-640B)...................................................40
• INDEX ....................................................................42

2BF-1
- 2 -
FIG. 1 Exterior Covers
ZAG
ZAG
ZAG
ZAU
ZAG
ZAG
ZAG
ZAU
ZAU
ZAU
ZAG
ZAG
ZAL
ZAL
ZAG
ZAG
ZAG
ZAG
ZAG
ZAG
ZAG
ZAG ZAG
1
2
5
6
7
4
8
15
11
10
12
14 13
16
17
18
19
19
20
20
21
22
26
24
25 27
28
29
30
31
32
39 41 40
42
43
43
44
44
45
46
47
48
49
50
51
52
53 54
55 56
60
61
59
62
63
64
65
34
3
9
57
58
33
37
36
38
23
68
66
67
35

Kyocera-Mita FS-C8026N service manual
Kyocera-Mita FS-C8026N service manual
Kyocera-Mita FS-C8026N service manual
Kyocera-Mita FS-C8026N service manual
Kyocera-Mita FS-C8026N service manual
Kyocera-Mita FS-C8026N service manual
Kyocera-Mita FS-C8026N service manual
Kyocera-Mita FS-C8026N service manual
Kyocera-Mita FS-C8026N service manual