Oki C5500 User manual

Oki Data CONFIDENTIAL
C5500/C5800/C6100
MAINTENANCE MANUAL
0 6 0 5 0 1A
PRINTING SOLUTIONS

43085101TH Rev.1 2 /
Oki Data CONFIDENTIAL
1 2006-03-29 Issue MD12 Ishikuro
Rev.No. Date No.
Corrected items
Page Description of change
Person in
charge
Document Revision History

43085101TH Rev.1 3 /
Oki Data CONFIDENTIAL
PREFACE
This manual explains the maintenance methods for the C6100/C5800/C5500.
The manual has been prepared for use by the maintenance personnel. For operating methods of the
C6100/C5800/C5500, refer to the corresponding user's manual.
Note! • The contents of this manual are subject to changes without prior notice.
• Despite that exhaustive efforts were made in preparing the manual to make it accurate, it still may
contain errors. Oki Data will not hold itself liable for any damage that results or is claimed to have
resulted from repair, adjustment, or modification of the printer conducted by the user using this
manual.
• The parts employed in the printer are so delicate that they may be damaged if not treated
properly. Oki Data strongly recommends that the maintenance of the printer be undertaken by
Oki Data's registered maintenance personnel.
• Work after eliminating static electricity.

43085101TH Rev.1 4 /
Oki Data CONFIDENTIAL
CONTENTS
1. CONFIGURATION ............................................................................................... 8
1.1 System configuration ........................................................................................................... 8
1.2 Printer configuration ........................................................................................................... 10
1.3 Composition of optional items ............................................................................................ 12
1.4 Specifications ..................................................................................................................... 13
1.5 Interface specifications ...................................................................................................... 17
1.5.1 Parallel interface specifications (N/A) ................................................................... 17
1.5.2 USB interface specifications
(C6100/C5800/C5500).......................................................................................... 17
1.5.2.1 Outline of USB interface .......................................................................... 17
1.5.2.2 USB interface connectors and cables ..................................................... 17
1.5.2.3 USB interface signals .............................................................................. 17
1.5.3 Network interface specifications
(C6100/C5800/C5500) ......................................................................................... 18
1.5.3.1 Outline of network interface ..................................................................... 18
1.5.3.2 Network interface connectors and cables................................................ 19
1.5.3.3 Network interface signals ........................................................................ 19
2. EXPLANATION OF OPERATION ..................................................................... 20
2.1 Electrophotographic processing mechanism ..................................................................... 20
2.2 Printing process ................................................................................................................. 25
3. INSTALLATION ................................................................................................. 35
3.1 Cautions, and do's and don'ts ............................................................................................ 35
3.2 Unpacking method .............................................................................................................37
3.3 Printer Installation Instructions ........................................................................................... 38
3.4 Listing of component units and accessories ...................................................................... 39
3.5 Assembling method ........................................................................................................... 40
3.5.1 Assembly of printer main body ............................................................................. 40
3.5.2 Connection of power cable ................................................................................... 46
3.5.3 Installation of optional items ................................................................................. 49
3.5.4 Confirmation of recognition of optional items ....................................................... 58
3.6 Menu Map print .................................................................................................................. 59
3.7 Connection methods .......................................................................................................... 61
3.8 Confirmation of paper used by the user ............................................................................. 63
4. REPLACEMENT OF PARTS ............................................................................. 64
4.1 Precautions on the replacement of parts ........................................................................... 64
4.2 Part replacement methods ................................................................................................. 66
4.2.1 Left side cover ...................................................................................................... 66
4.2.2 Right side cover .................................................................................................... 67

43085101TH Rev.1 5 /
Oki Data CONFIDENTIAL
4.2.3 Face-Up Tray........................................................................................................ 68
4.2.4 Rear cover ............................................................................................................ 69
4.2.5 LED Assy/LED Assy springs ................................................................................ 70
4.2.6 Control PCB.......................................................................................................... 71
4.2.7 Print engine controller PCB .................................................................................. 73
4.2.8 Top cover assembly ............................................................................................. 75
4.2.9 Top cover.............................................................................................................. 76
4.2.10 Controller Panel Assy ........................................................................................... 77
4.2.11 Board PRP/ Top Cover Handle ............................................................................ 78
4.2.12 Low-Voltage Power Supply / Low-Voltage Fan / Hopping Motor /
Fuser Motor .......................................................................................................... 79
4.2.13 Guide Eject Assy / Color Register Assy / Board-PRY .......................................... 80
4.2.14 Fan (Fuser)/ Belt Motor / High-Voltage Power Supply Board /
Cover-Open Switch .............................................................................................. 82
4.2.15 MPT Assy ............................................................................................................. 83
4.2.16 Feeder Unit / Board-RSF/ MPT Hopping Roller /
Frame Assy Separator / Cover Front.................................................................... 84
4.2.17 Board-PRZ Lift-Up Motor/Solenoid/Paper-End Sensor ........................................ 85
4.2.18 Feed Roller ........................................................................................................... 87
4.2.19 Shaft Eject Assy(FU) / Shaft Eject Assy(FD) / Eject Sensor ................................ 88
4.2.20 Fuser Unit ............................................................................................................. 89
4.2.21 Belt Unit ................................................................................................................ 90
4.3 Lubricating points ............................................................................................................... 91
5. MAINTENANCE MENUS ................................................................................. 108
5.1 System maintenance menu (For maintenance personnel) .............................................. 108
5.2 Maintenance utility ........................................................................................................... 111
5.3 Functions of user's maintenance menu ........................................................................... 115
5.3.1 Maintenance menu (For end users) ................................................................... 115
5.3.2 Self-diagnostic mode .......................................................................................... 116
5.3.2.1 Operator panel .................................................................................... 116
5.3.2.2 Normal self-diagnostic mode (Level 1)................................................ 116
5.3.2.2.1 Activation method for self-diagnostic mode (Level 1) ......... 120
5.3.2.2.2 Deactivation of self-diagnostic mode .................................. 120
5.3.2.3 Switch scan test .................................................................................. 120
5.3.2.4 Motor clutch test .................................................................................. 123
5.3.2.5 Test print ............................................................................................. 125
5.3.2.6 Color registration adjustment test ....................................................... 130
5.3.2.7 Print density adjustment test ............................................................... 131
5.3.2.8 Indication of consumable part counters .............................................. 133
5.3.2.9 Indication of printed page counters ..................................................... 134
5.3.2.10 Factory/Shipping switching .................................................................. 134
5.3.2.11 Setup of self-diagnostic function.......................................................... 135
5.3.2.12 Indication of LED head serial number ................................................. 136
5.3.2.13 Details of panel indications .................................................................. 137

43085101TH Rev.1 6 /
Oki Data CONFIDENTIAL
5.3.3 Various types of print on the individual printer equipped with controller ............ 148
5.3.4 Functions of keys when depressed at power-on ................................................ 148
5.4 Setup after replacement of parts...................................................................................... 149
5.4.1 Precautions on the replacement of engine control PCB ..................................... 149
5.4.2 Setup of EEPROM after replacement of SP1/TBH PCB .................................... 152
5.4.2.1 Replacement of EEPROM after replacement of TBH PCB ................... 152
5.4.2.2 Setup of CU Serial Number ................................................................... 152
5.4.3 Setup of destination ............................................................................................ 153
5.5 About the manual setup of Print density adjustment........................................................ 154
6. PERIODICAL MAINTENANCE ....................................................................... 155
6.1 Recommended replacement parts ................................................................................... 155
6.2 Cleaning ........................................................................................................................... 155
6.3 Cleaning of LED lens array .............................................................................................. 155
6.4 Cleaning of pickup rollers................................................................................................. 157
6.5 Internal cleaning of printer ............................................................................................... 158
7. TROUBLESHOOTING PROCEDURES .......................................................... 160
7.1 Precautions prior to repair................................................................................................ 160
7.2 Items to be checked prior to taking action on abnormal images ...................................... 160
7.3 Precautions when taking action on abnormal images...................................................... 160
7.4 Preparations for troubleshooting ...................................................................................... 160
7.5 Troubleshooting method .................................................................................................. 160
7.5.1 LCD Message List .............................................................................................. 161
7.5.2 Preparing for troubleshooting ............................................................................. 177
7.5.2.(1)LCD Display Malfunction ................................................................................. 179
7.5.2.(2)Irregular Operation of the device after turning on the power ........................... 182
7.5.2.(3)Paper Feed Jam(Error 391:1st Tray)............................................................... 192
7.5.2.(4)Paper Feed Jam (Error 390:Multi-purpose Tray)............................................. 194
7.5.2.(5)Paper Path Jam(Error 381) ............................................................................. 196
7.5.2.(6)Paper Exit Jam(Error 382)............................................................................... 201
7.5.2.(7)Duplex Print Jam(Error 370,371,372,373,383) ............................................... 204
7.5.2.(8)Paper Size Error (Error 400) ........................................................................... 206
7.5.2.(9)ID Unit Up-Down Error(Service Call 140-143)................................................. 207
7.5.2.(10)Fuser Unit Error(Error 170-177) .................................................................... 209
7.5.2.(11)Motor Fan Error(Error 120,127,051) .............................................................. 210
7.5.2.(12)Print Speed is Slow (Low Performance)......................................................... 211
7.5.2.(13)Option unit is not recognized ..........................................................................211
7.5.2.(14)LED head is not recognized(Error 131,132,133,134) .................................... 212
7.5.2.(15)Toner cartridge is not recognized(Error 540,541,542,543)............................ 213
7.5.2.(16)Fuse Cutout Error (Error 150-155) ................................................................ 214

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Oki Data CONFIDENTIAL
7.5.2.(17)Dew Condensation Errors (Error 123) ........................................................... 215
7.5.3 Image Problem Troubleshooting ........................................................................ 216
7.5.3.(1)Color is totally pale (Fig.7.2 A )........................................................................ 217
7.5.3.(2)Background is dirty (Fig.7.2 B ) ....................................................................... 218
7.5.3.(3)Blank Print (Fig.7.2 C ) .................................................................................... 219
7.5.3.(4)Vertical lines are printed .................................................................................. 220
7.5.3.(5)Cyclic Print Trouble (Refer to Fig.7.2 E ) ......................................................... 221
7.5.3.(6)Color registration is wide. ................................................................................ 222
7.5.3.(7)Solid Black Print .............................................................................................. 223
7.5.4 Actions after forced initialization of HDD/Flash .................................................. 224
7.5.5 Network Troubleshooting.................................................................................... 225
7.6 Check of fuses ................................................................................................................. 226
8. CONNECTION DIAGRAMS ............................................................................ 227
8.1 Check of resistance values .............................................................................................. 227
8.2 Component layout ............................................................................................................ 231

43085101TH Rev.1 8 /
Oki Data CONFIDENTIAL
1. CONFIGURATION
1.1 System configuration
C6100
Figure 1-1-1 represents the system configuration of the printer.
Figure 1-1-1
RFID
EEP
ROM
K LED HEAD
Y LED HEAD
M LED HEAD
C LED HEAD
Operator panel PCB
Toner sensor PCB
High-voltage PCB Low-voltage PCB
ARMORED CPU
Paper feed
solenoid
Front sensor PCB
DUPLEX PCB 2nd TRAYPCB
IN1 IN2 WR
M
ID
M
HOP M
IDUP
M
FUSER
M
BELT
1st
P. E
sensor
Belt unit
PUPCB
Junction PCB
Fuser
Unit
Inlet
EXIT
sensor
Density
sensor
Color
registration
PCB right
Belt unit
fuse-cut
Fuser fuse-cut,
UP&LOW thermistor/frame
thermistor
Belt unit
fuse-cut,
EXIT
Color drift, density,
thermistor signal 20MHz
FLASH
8Mbit
High-voltage I/F,
fan control, cover-open
FAN heater control,
others
5V,24V, 0VL,0VP
EEPROM
K-ID Y-ID M-ID C-ID
Low-
voltage
FAN
AC-SW
Fuser
fan
Belt
thermi-
stor
ID UP/
DOWN
Cover-
open
sensor
K toner
sensor Y toner
sensor M toner
sensor C toner
sensor ID fuse-cut
CC1
ASIC
CIF2
ASIC
HDDLAN USB
CUPCB
Flash
ROM
Option
RAM
LEISUS
command I/F
Environment
sensor
DCON I/F LSYNC
CU
FAN CPU
Color
registration
PCB left

43085101TH Rev.1 9 /
Oki Data CONFIDENTIAL
C5800/C5500
Figure 1-1-2 represents the system configuration of the printer.
Figure 1-1-2
Color
registration
PCB right
Color
registration
PCB left
K LED HEAD
Y LED HEAD
M LED HEAD
C LED HEAD
Front sensor PCB
DUPLEX PCB 2nd TRAY PCB
IN1 IN2 WR
M
ID
M
HOP M
IDUP
M
FUSER
M
BELT
BOURBON
LEDHEADI/F
SPILYTAS
LAN USB
CU PCB
Option
RAM
FLASH
16Mbit
CU area
50MHz
Operator panel PCB
Toner sensor PCB
High-voltage PCB Low-voltage PCB
ARMORED CPU
Belt unit
PU PCB
Junction PCB
Fuser Unit Inlet
EXIT
sensor
Density
sensor
Belt unit
fuse-cut
Fuser fuse-cut,
UP&LOW thermistor/frame
thermistor
Belt unit
fuse-cut,
EXIT
Color drift, density,
thermistor signal
20MHz
FLASH
8Mbit
High-voltage I/F,
fan control, cover-open FAN heater control,
others 5V,24V, 0VL,0VP
EEPROM
K-ID Y-ID M-ID C-ID
Low-
voltage
FAN
AC-SW
Fuser
fan
Belt
thermi-
stor
ID UP/
DOWN
Cover-
open
sensor
K toner
sensor Y toner
sensor M toner
sensor C toner
sensor ID
fuse-cut
Environment
sensor
Paper feed
solenoid
1st
P.E
sensor
LEISUS
command I/F
5V
RFID
EEPROM

43085101TH Rev.1 10 /
Oki Data CONFIDENTIAL
1.2 Printer configuration
The internal part of the C6100 printer is composed of the following sections:
• Electrophotographic processing section
• Paper paths
• Control sections (CU sect./PU sect.)
• Operator panel
• Power supply sections (High-voltage sect./low-voltage sect.)
Figure 1-2-1 represents the configuration of the printer.
Figure 1-2-1
Air flow

43085101TH Rev.1 11 /
Oki Data CONFIDENTIAL
The internal part of the C5800/C5500 printer is composed of the following
sections:
•Electrophotographic processing section
•Paper paths
•Control sections (CU sect./PU sect.)
•Operator panel
•Power supply sections (High-volatge sect./low-voltage sect.)
Figure 1-2-2 represents the configuration of the printer.
Figure 1-2-2
Air flow

43085101TH Rev.1 12 /
Oki Data CONFIDENTIAL
1.3 Composition of optional items
The following optional items are available for the printer:
(1) Second tray
TRY-C4D1
(2) Duplex Unit
DXU-C4D
(3) Expansion Memory (C6100) 256 MB / 512 MB
MEM256E
MEM512C
For long printing, it is recommended to
add an expansion memory.
* Not compatible with the expansion
memories for C5800/C5800L/C5600/C5500.
(4) Expansion Memory (C5800/C5500) 64 MB / 256 MB
MEM64D (MLMEM64B)
MEM256D (MLMEM256B)
Expansion Memory 64MB
* Not compatible with the expansion
memories for C6100.
(5) Hard disk (C6100)
HDD-C1B

43085101TH Rev.1 13 /
Oki Data CONFIDENTIAL
C5800
32/26ppm
C5500
24/20ppm
C5800
28/24ppm
C6100
32/26ppm
C5600
32/20ppm
C5700
32/20ppm
C5900dn
32/26ppm
C5800
32/26ppm
(CHN)
(CHN)
C5900
32/26ppm
1200W
10°C~32°C, 17°C~27°C(Full-color print quality guarantee temperature)
0°C~43°C, Power off
-10°C~43°C, With drum and toner
-29°C~50°C, With drum, but no toner
-29°C~50°C, With drum and toner
20%~80%, 50%~70%(Full-color print quality guarantee humidity)
Max. wet-bulb temp. : 25°C
10%~90%, Max. wet-bulb temp. : 26.8°C, with power off
10%~90%, Max. wet-bulb temp. : 35°C
10%~90%, Max. wet-bulb temp. : 40°C
45sec
Not applicable
600dpi
600x1200dpi
600x600x4 level
Toner-saving by reducing lightness
(120V)110~127VAC , (230V)220~240VAC
490W
True 600x1200dpi
True 600x600dpi
PowerPC405
16KB,
16KB
200MHz
32bit
Total capacity: 2MB
PowerPC750CXR
32KB,
32KB (Internal L2 : 256KB)
500MHz
64bit
256 MB
256/512MB DIMM
Total capacit: 64MB
100W (Average)
True 600x1200dpi
True 600x600dpi
7 ppm in 1DAY environment
17W or less 15W or less
435mm
618mm
561mm
435mm
621mm
563.5mm
32ppm
26ppm
9ppm*1
10ppm
8sec
9sec
28ppm
24ppm
9ppm*1
10ppm
9sec
10sec
24ppm
20ppm
9ppm*1
10ppm
10sec
11sec
32ppm
(Default:24ppm)
20ppm
9ppm*1
10ppm
8sec
(Default:10sec)
11sec
32ppm
26ppm
9ppm*1
10ppm
8sec
9sec
32ppm
(Default:24ppm)
20ppm
9ppm*1
10ppm
8sec
(Default:10sec)
11sec
435mm
621mm
563.5,mm
A4
Division
External
dimensions
Print width
Engine speed
(A4)
First print
time(A4)
Resolution
CPU
RAM
ROM
Power
consumption
Operating
environment
(Temperature)
Operating
environment
(Humidity)
Item
Width
Depth With duplex
Without duplex
Height
Mass With duplex
Without duplex
Print width
Monochrome
Color
OHP Color
OHP color/ monochrome
Monochrome
Color
Warm-up time
Low-noise mode
LED head
Max. input resolution
Output resolution
Gradation
Econo-mode
Core
I-cache
D-cache
Clock
Bus width
Resident
Option
Program + font
Power input
Power-save mode
Idle
Normal operation
Peak
When operating
When not operating
When stored
(For max. 1 yr.)
When transported
(For max. 1 mo.)
When transported
(For max. 1 mo.)
When operating
When not operating
When stored
When transported
340mm
Approx.29kg
Approx.26kg
64 MB
64/256MB DIMM
64 MB
64/256MB DIMM
128MB
256MB DIMM
1.4 Specifications

43085101TH Rev.1 14 /
Oki Data CONFIDENTIAL
Approx. 5,200
pages (Black)
Approx. 1,200
pages (Color)
Approx. 5,200
pages (Black)
Approx. 4,200
pages (Color)
Approx. 4,200
pages (Black)
Approx. 4,200
pages (Color)
Approx. 5,200
pages (Black)
Approx. 2,000
pages (Color)
Approx. 5,200
pages (Black)
Approx. 1,200
pages (Color)
Approx. 4,200 pages (Black)
Approx. 4,200 pages (Color)
Approx. 6,000
pages (Black)
Approx. 2,000
pages (Color)
C5800
32/26ppm
C5500
24/20ppm
C5800
28/24ppm
C6100
32/26ppm
C5600
32/20ppm
C5700
32/20ppm
C5900dn
32/26ppm
C5800
32/26ppm
Item
Printer life
Print duty
(M=L/12, A=L/12/5)
MTBF
(2.3% duty)
MPBF
MTTR
Toner life
Starter toner
(5% duty) (Attached)
Standard
With 1st
S-type
(C5800L, C5500)
With 1st
(C5800L, C5500)
Image drum life
Transfer belt life
Fuser unit life
In operation
On standby (ISO7779Front)
Power-save mode
Paper capacity(1st tray)
Paper capacity(2nd tray)
Paper capacity (Manual/auto)
Delivery
Duplex
Legal/universal or
Automatic front feeder
Two-sided
1st tray
2nd tray
Manual & auto (MPT)
Two-sided
Division
Service life
Operation noise
Paper handling
Paper size
Min. paper size
420,000 pages, 5 years
Max. 50,000 pages / mo.
Average 4,000 pages / mo.
Not applicable
40,000 pages
20 minutes
Approx. 20,000 pages (With 3 pages / job) Approx. 12,000 pages (With 1 page / job)
Approx.27 ,000 pages (When printed continuously) Drum counter automatically reset
60,000 pages (A4 size, with 3 pages / job), counter automatically reset
60,000 pages (A4 size), counter automatically reset
Standerd multi-purpose tray: 50 OHP sheets or 100 sheets of paper (70kg) or 10 envelopes
250 sheets (70kg) face-down/100 sheets (70kg)face-up in tray
37dBA
Background level
Legal/universal cassette: 300 sheets (70kg)
Legal/universal cassette (Optional): 530 sheets (70kg)
Optional OptionalStandard Standard Standard
Standard/
optional
(Depending on
specification)
Standard/
optional
(Depending on
specification)
55.6dBA 54.4dBA
Approx. 2,000
pages (Black)
Approx. 2,000
pages (Color)
Approx. 6,000
pages (Black)
Approx. 5,000
pages (Color)
Approx. 5,000
pages (Black)
Approx. 5,000
pages (Color)
Approx. 6,000
pages (Black)
Approx. 2,000
pages (Color)
Approx. 6,000
pages (Black)
Approx. 5,000
pages (Color)
Approx. 5,000 pages (Black)
Approx. 5,000 pages (Color)
Approx. 2,000
pages (Black)
Approx. 2,000
pages (Color)
Approx. 1,500 pages
(Black)
Approx. 1,500 pages
(Color)
Approx. 1,500 pages
(Black)
Approx. 1,500 pages
(Color)
Approx. 1,500 pages (Black)
Approx. 1,500 pages (Color)
1st cassette: Legal13/13.5/14, letter, executive, A4, A5, B5, A6
2nd cassette : Legal13/13.5/14, letter, executive, A4, A5, B5
Reply-paid postcard (Max. 176gsm) (Multi-purpose tray)
Legal13/13.5/14, letter, executive , A4, A5, B5, A6, C5, DL, Com-9,Com-10, Monarch, custom size, banners up tp
1200mm (When paper length exceeds 356, its width shall be from 210 to 215.9.)
Postcard, reply-paid postcard, Japanese-style envelope
Legal13/13.5/14, letter, executive , A4, A5 Custom size (Within permissible size and weight)
105x148mm:A6/(Models for Japan [100x148: Postcard size])
100x148: Postcard size
148x210mm:A5
148x210mm:A5
(CHN)
(CHN)
C5900
32/26ppm
53.2dBA 55.6dBA
Standard/
optional
(Depending on
specification)
Standard/
optional
(Depending on
specification)
new drum
new drum
A4-size cassette/universal
cassette
or manual feeder
(ISO7779Front)
In one-side print
Approx. 2,000 pages (Black)
Approx. 2,000 pages (Color)
Approx.1,200 pages (Black)
Approx. 1,200 pages (Color)
-
-
-
-
-
-
Approx. 2,000
pages (Black)
Approx. 2,000
pages (Color)
Approx. 1,200
pages (Black)
Approx. 1,200
pages (Color)
-
-

43085101TH Rev.1 15 /
Oki Data CONFIDENTIAL
C5800
32/26ppm
C5500
24/20ppm
C5800
28/24ppm
C6100
32/26ppm
C5600
32/20ppm
C5700
32/20ppm
C5900dn
32/26ppm
C5800
32/26ppm
(CHN)
(CHN)
C5900
32/26ppm
Not available
Automatic
Item
1st tray
2nd tray
Manual & auto (MPT)
Two-sided
LCD
LED (Color)
Switch
Paper out
Paper low
Toner low
Cover open
Fuser unit temp.
Paper size
Stacker full
Standard ( On PCB)
Option for OEM user
Input/output switch
Standard
Emulation switch
Bit-map type face
Scalable 1 type face
Scalable 2 type face
Scalable 3 type face
Rasterizer
Bar code
OCR
Japanse PCL font
Japanese PS font
Division
Paper thickness
Operator panel
Status
switch/sensor
Communication
interface
Emulation
Font
16 characters in 2 line (Roman alphabet/Japanese kana)
No paper size indicated
Two
(Green x1, dark amber x1)
Six
64-203gsm OHP sheets available
64~105gsm
64~120gsm
Provided
Not provided
Provided (Y,M,C,K)
Provided
Provided
Not provided
Not provided
•Hi-Speed USB
•Ethernet
•Hi-Speed USB
•Ethernet
•Bidirectional parallel I/F conforming to IEEE std
1284-1994 (OEM)
PCL (PCL5c, HP-GL)
/ PCL XL2.1
SIDM (IBM-PPR,
EPSON-FX)
PostScript3 (Clone)
Automatic
Hiper-C
Not provided
Agfa
1(Line printer)
Agfa micro-type 86
Not available
Agfa micro-type 136
Agfa UFST 4.0 (PCL)
USPS
OCR-A,B
Not available
Not available
Not available
Not available
Not available
Not available
Not available
Not available
Not available
Not available
Not available
64~176gsm

43085101TH Rev.1 16 /
Oki Data CONFIDENTIAL
Note! Expansion memories for C5800/C5500 and those for C6100
C5700 are not compatible with each other.
C5800L is shiped with 64MB-DIMM (Standard) Therefore, C5800L’s resident memory
size is 128MB(64MB+64MB) and C5800L’s expansion memory is 256MB-DIMM only.
C5800
32/26ppm
C5500
24/20ppm
C5800
28/24ppm
C6100
32/26ppm
C5600
32/20ppm
C5700
32/20ppm
C5900dn
32/26ppm
C5800
32/26ppm
(CHN)
(CHN)
C5900
32/26ppm
Division
Optional Item
(Detacchable)
Factory settings
Others
Item
RAM set
Tray mechanism
Cassette
Two-sided print unit
Othes
Japan
USB-IF logo
Windows logo
Operation with UPS
Available
Available
Operation with UPS (Uninterruptible power supply) is not guaranteed.
Do not use UPS
64, 256 MB 64, 256 MB256 MB
2nd tray mechanism
Legal/universal (530 sheets)
Available
256,512 MB
Not applicable
GDI Model
2.5" IDE HDD
User- installable
PCL+PS model
(Standard64
MB-DIMM)

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Oki Data CONFIDENTIAL
1.5 Interface specifications
1.5.1 Parallel interface specifications (N/A)
1.5.2 USBinterfacespecifications(C6100/C5800/C5500)
1.5.2.1 Outline of USB interface
(1) Basic specifications
USB (Hi-Speed USB supported)
(2) Transmission mode
Full speed (Max. 12Mbps ±0.25%)
High speed (Max.480Mbps ±0.05%)
(3) Power control
Self power device
1.5.2.2 USB interface connectors and cables
(1) Connector
•Printer side: B-receptacle (Female)
Upstream port
Product equivalent to UBR24-4K5C00 (Made by ACON)
Connector pin assignment
•Cable side: B-plug (Male)
(2) Cables
Cable length: Specification: USB2.0 type cables five meters long or shorter. Cables two meters long
or shorter are recommended. (Shielded cable lines shall be used.)
1.5.2.3 USB interface signals
2
34
1
1
2
3
4
Shell
Signal name
Vbus
D-
D+
GND
Shield
Function
Power supply (+5V)
For data transfer
For data transfer
Signal ground

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Oki Data CONFIDENTIAL
Network protocol Application
1.5.3 Network interface specifications (C6100/C5800/C5500
C5500)
1.5.3.1 Outline of network interface
1.5.3.1.1 Basic specifications of network interface (C5800/C5500)
1.5.3.1.2 Basic specifications of network interface (C6100)
Protocol family Network protocol Application
TCP/IP IPv4, TCP, ICMP, ARP,
UDP
LPR, RAW, IPP, FTP, Telenet
SNMPv1
DHCP/BOOTP
DNS
UPnP
Rendezvous
SNTP
Protocol family
TCP/IP
NetBEUI
NetWare
Ether Talk
IPv4, IPv6, TCP, UDP,
ICMP, ICMPv6, ARP
NetBIOS
SPX, IPX, SAP, RIP
ELAP, AARP, DDP, AEP,
ZIP, RTMP, ATP, NBP
LPR, RAW, IPP, FTP
SMTP/POP3
HTTP
HTTPS
Telenet
SNMPv1/v3
DHCP/BOOTP
DNS
UPnP
Rendezvous
SNTP
WINS, SMB
Q-Server over IPX
Q-Server over IP
R-Printer
N-Printer
PAP

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Oki Data CONFIDENTIAL
1.5.3.2 Network interface connectors and cables
(1) Connectors
100 BASE-TX / 10 BASE-T (Automatically switched, not usable simultaneously)
Connector pin assignment
2) Cables
RJ-45 connectorized non-shielded twisted-pair cable (Category 5 recommended)
1.5.3.3 Network interface signals
18
Pin No. Signal name Direction Function
1
2
3
4
5
6
7
8
TXD+
TXD-
RXD+
-
-
RXD-
-
-
FROM PRINTER
FROM PRINTER
TO PRINTER
-
-
TO PRINTER
-
-
Transmitting data +
Transmitting data -
Receiving data +
Not in use
Not in use
Receiving data -
Not in use
Not in use

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Oki Data CONFIDENTIAL
2. EXPLANATION OF OPERATION
2.1 Electrophotographic processing mechanism
(1) Electrophotographic process
The electrophotographic process is explained briefly below:
1. Charging
A voltage is applied to the CH roller to electrically charge the surface of the OPC drum.
2. Exposure
The LED head radiates light onto the charged OPC drum in accordance with the image
signal. The electric charge of the radiated part of the OPC drum surface attenuates
depending on the intensity of the light, thus forming an electrostatic latent image on the
OPC drum surface.
3. Development
Charged toner adheres to the electrostatic latent image of the OPC drum by electrostatic
power, and forms a visible image on the OPC drum surface.
4. Transfer
Paper is placed over the OPC drum surface and an electric charge is applied to it from
the back side by the transfer roller, so that the toner image is transferred to the paper.
5. Drum cleaning
The drum cleaning blade removes toner remaining on the OPC drum after the transfer.
6. Removal of Electricity
7. Belt cleaning
The belt cleaning blade removes toner remaining on the belt.
8. Fuser
Heat and pressure are applied to the toner image on the paper to promote its fusion.
1. Charging
A voltage is applied to the charging roller, which is placed in contact with the OPC drum
surface, to charge the OPC drum surface.
-
-
-
-
-
-
Charging roller
Power
Supply
Unit
OPC drum