OKI MB460, MB470, MB480 Schematic

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MB460/470/480

Maintenance Manual

011409B

Oki Data CONFIDENTIAL

Document Revision History

Oki Data CONFIDENTIAL

Corrected items

Rev.No. Date

No. Page Description of change

1 2009-08-14 Issue PED14 M. Yamazaki 2 2009-10-13 P70

P125 P177

Change of P70 /P125 /P177

Person in

charge

PED25 H. Ishizuka

44306601TH Rev. 2

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Oki Data CONFIDENTIAL

Preface

This manual explains the maintenance methods of MB460/MB470/MB480. This manual is prepared for the maintenance person. In regard to the handling methods of MB460/

MB470/MB480, please refer to the User’s Manual.

Note! • Contents of

• While all reasonable efforts have been made to make this document as accurate and helpful as possible, we make no warranty of any kind, expressed or implied, as to the accuracy of the information contained herein. Oki Data assumes no responsibility to the damages caused or claimed to have been caused by the user as a result of repair, adjustment and/or change using this manual.

• Parts of this product are delicate and can be damaged unless properly handled. We strongly recommend the user to maintain the product at the hand of the registered maintenance person of our company

• Before

this manual is subject to change without notice.

starting the maintenance work, please neutralize the static electricity.

44306601TH Rev. 2

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Oki Data CONFIDENTIAL

Table of contents

1. ConfiguRaTion ................................................................................................7

1.1 System Conﬁguration ...........................................................................................................7

1.2 Structure of MFP ...................................................................................................................9

Offer of Options ...................................................................................................................10

1.3

Speciﬁcations ......................................................................................................................11

1.4

Interface Speciﬁcation .........................................................................................................13

1.5

.1 USB Interface Speciﬁcation ...................................................................................13

1.5

.1.1 Outline of USB Interface .........................................................................13

1.5

.1.2 USB Interface Connector and Cable ......................................................13

1.5

.1.3 UBS Interface Signal ..............................................................................13

1.5

.2 Network Interface Speciﬁcation .............................................................................14

1.5

.2.1 Outline of Network Interface ...................................................................14

1.5

.2.2 Network Interface Connector and Cable ................................................14

1.5

.2.3 Network Interface Signal ........................................................................14

1.5

.3 Telephone Line Interface Speciﬁcation (Only MB470/MB480) ............................15

1.5

.3.1 Outline of telephone Line Interface ........................................................15

1.5

.3.2 Telephone Line Interface Connector and Cable .....................................15

1.5

.3.3 Telephone Line Interface signal .............................................................15

1.5

.4 Parallel Interface Speciﬁcations ...........................................................................16

1.5

.4.1 Parallel Interface Overview ....................................................................16

1.5

.4.2 Parallel Interface Connector and Cable .................................................16

1.5

.4.3 Parallel Interface Level ..........................................................................16

1.5

2. oPeRaTional exPlanaTion ........................................................................17

2.1 Electrophotographic process mechanism ..........................................................................17

2.2 Printing process ..................................................................................................................24

Toner entrance detection ....................................................................................................28

2.3

3. MfP insTallaTion ..........................................................................................30

3.1 Precautions and Prohibition ................................................................................................30

3.2 MFP Unpacking Procedure .................................................................................................32

MFP Installation Instructions ...............................................................................................33

3.3

Packed Units and Attachments ...........................................................................................34

3.4

Assembly Procedure ...........................................................................................................35

3.5

.1 MFP Main Body .....................................................................................................35

3.5

.2 Power Cable Connection .......................................................................................44

3.5

.3 Installation of Optional Components .....................................................................46

3.5

.4 Conﬁrm the Recognition of Option ........................................................................50

3.5

Conﬁguration Page Print .....................................................................................................51

3.6

Network Information Print ....................................................................................................54

3.7

Connection Procedures.......................................................................................................55

3.8

Checking of User Paper ......................................................................................................59

3.9

4. RePlaCeMenT of PaRTs ..............................................................................60

4.1 Precautions on the replacement of parts ............................................................................60

4.2 Parts layout .........................................................................................................................62

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Oki Data CONFIDENTIAL

4.3 Parts replacement method ..................................................................................................67

4.3.1 Detachment methods of the scanner and printer ..................................................68

.1.1 Cover-Side-R ..........................................................................................68

4.3

.1.2 Cover-Side-L ..........................................................................................69

4.3

.1.3 FAX Board (In case of MB470/480 ) ....................................................70

4.3

.1.4 Detachment methods of the scanner and printer ...................................71

4.3

.2 Scanner .................................................................................................................73

4.3

.2.1 Detachment of the paper tray .................................................................73

4.3

.2.2 Detachment of Pad .................................................................................74

4.3

.2.3 Removing ADF PCBA ............................................................................75

4.3

.2.4 Removing operation panel .....................................................................76

4.3

.2.5 Removing the MPCBA ............................................................................77

4.3

.2.6 Removing ADF Assembly ......................................................................79

4.3

.2.7 Removing the Window-ADF ...................................................................81

4.3

.3 Printer ....................................................................................................................82

4.3

.3.1 LED Head ...............................................................................................82

4.3

.3.2 Roller-Transfer ........................................................................................83

4.3

.3.3 CU Board ................................................................................................84

4.3

.3.4 OP Cover Assy .......................................................................................85

4.3

.3.5 MPT-Assy (In case of MB460, it is Manual-Assy) ..................................86

4.3

.3.6 Front-Guide-Assy ...................................................................................87

4.3

.3.7 Roller-Assy-Feed ....................................................................................88

4.3

.3.8 Guide-Paper-Duplex ...............................................................................89

4.3

.3.9 Stacker-Cover-Assy ................................................................................90

4.3

.3.10 Motor-DC-Main .......................................................................................91

4.3

.3.11 Fuser-Assy ..............................................................................................92

4.3

.3.12 Rear-Cover-Assy ....................................................................................94

4.3

.3.13 Frame-Assy-Lower .................................................................................95

4.3

.3.14 High voltage / Low voltage power board ................................................97

4.3

.3.15 Plate-Bracket-Motor................................................................................99

4.3

.3.16 Roller-Back up ......................................................................................100

4.3

.3.17 Roller-Resist .........................................................................................101

4.3

.3.18 Lever-In-Sensor ....................................................................................102

4.3

.3.19 Lever-Eject-Sensor/Photo-Interrupter ..................................................103

4.3

.3.20 Lever-End/Lever-Duplex/Lever-Cassette/Gear-Assy-Clatch ...............104

4.3 .3.21 Paper feeding roller

4.3

(Roller-Pick-Up, Roller-Feed-NOW, Roller-Assy-MPT) ........................106

5. MainTenanCe Menu ....................................................................................108

5.1 Maintenance Menu ............................................................................................................108

5.1.1 Boot Menu ...........................................................................................................108

.2 System Maintenance Menu ................................................................................. 111

5.1

.3 Fax Maintenance Menu .......................................................................................115

5.1

.4 Print Statistics Menu ............................................................................................ 117

5.1

Maintenance Utility ............................................................................................................119

5.2

Variou s printing of the MFP unit with controller ................................................................121

5.3

Switch pressing function when power supply is turned on ...............................................121

5.4

Settings after Parts Replacement .....................................................................................122

5.5

.1 Notes when exchanging the main circuit board and EEPROM setting after the

5.5

exchange of 86M circuit board .................................................................................122

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Oki Data CONFIDENTIAL

6. PeRioDiC MainTenanCe..............................................................................126

6.1 Periodic Replacement Parts ..............................................................................................126

6.2 Cleaning ............................................................................................................................126

Cleaning of LED lens array ...............................................................................................126

6.3

Cleaning the pick-up roller ...............................................................................................128

6.4

Cleaning the inside of the MFP .........................................................................................129

6.5

Cleaning the papaer path in the ADF ...............................................................................130

6.6

Cleaning the underside of the ADF ...................................................................................132

6.7

Cleaning the Flatbed glass................................................................................................132

6.8

7. TRouBlesHooTing PRoCeDuRes ............................................................133

7.1 Precautions prior to repair .................................................................................................133

7.2 Items to be checked prior to taking action on abnormal images .......................................133

Precautions when taking action on abnormal images ......................................................133

7.3

Preparations for troubleshooting .......................................................................................133

7.4

Troubleshooting method ....................................................................................................133

7.5

.1 LCD Message List ...............................................................................................134

7.5

.2 LCD Message Troubleshooting ...........................................................................183

7.5

.3 Print Troubleshooting ...........................................................................................199

7.5

.4 Response after Flash compulsive initialization ....................................................207

7.5

.5 Network Troubleshooting .....................................................................................208

7.5

.5.1 Connection error occurs with the Web browser ...................................209

7.5

.5.2 Print operation is not possible ..............................................................215

7.5

.5.3 Cannot create Certiﬁcate ......................................................................216

7.5

.5.4 Installation of Certiﬁcate is not possible ...............................................216

7.5

.5.5 Other questionnaires ............................................................................219

7.5

.5.6 Restrictions when using Internet Explore 7 ..........................................222

7.5

.6 Fax Error Code List ..............................................................................................223

7.5

Fuse Checking ..................................................................................................................225

7.6

8. ConneCTion DiagRaMs ..............................................................................226

8.1 Resistance value ...............................................................................................................226

8.2 Component layout .............................................................................................................228

aPPenDix C MainTenanCe Manual foR seConD TRay uniT ..................234

1 Overview ...........................................................................................................................234

1.1 Function ......................................................................................................................234

Exterior and Parts Name ............................................................................................234

1.2

2. D

3. P

4. C

escription for Operation of Second Tray unit ..................................................................235

art Replacement .............................................................................................................236

Precautions on replacing parts ...................................................................................236

3.1

Arrangement of Parts ..................................................................................................237

3.2

How to Replace Parts .................................................................................................238

3.3

.1 Roller-Pick-Up, Roller-Feed-Now .........................................................239

3.3

.2 Guard-Connector, Connector (9715S-08Z02-G4C) .............................240

3.3

.3 Roller-Feed ...........................................................................................241

3.3

.4 Board-OT7 ............................................................................................242

3.3

.5 CONN Cord-AMP8P-AMP8P ...............................................................243

3.3

.6 Gear-Assy-Clatch .................................................................................244

3.3

.7 Frame-Assy-Retard, Spring-Retard ......................................................246

3.3

leaning of Paper Feed Roller and Separation Roller ......................................................247

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1. ConfiguRaTion

RCLT

THERM

HCLT

MCLT

SON

HVIF

EXRCO

Fax IF

HEAD

PNLUSB

LAN

USB

CENT

DC Motor

Assy.

JST2

clutch

AMP8

USB IF

Centronics IF

JST24

Panel PCB

LCD

Moter

CCD UNIT

JST20

Scanner Unit

JST9

28 JST28

FAN

2nd

Tray

JST7

Board-TT1

cover open switch

JST10

Cover open sensor

EXIT sensor

JST2

Temperature sensor

IP100

ALF

UPD7

202

AMP6

JST28

CN1

CN2

CN3

High Volt PCB

FUSER UNIT

AC Inlet

AC SW

86M

SPILYTAS 2

8051

I2C

16C550

UART

LC98500B

PU LSI

DDR

I/F

JST10

Nor

Nand

DIMM

I2C

ROM

Kbit

74LVC

161284

Paper end

duplex

JST9

SCANNER

PCB

L629

SOLENOID

؁ພ

ROM IF

PCI

ROM IF

PCI

2NDTRAY

LED HEAD UNIT

TXD/

RXD

DP/

DP/DM

HEAD IF

HEAD Clock

RS232C

DP/

RS232C

PUIF

DDR-

SDRAM

I2C

DDR IF

IEEE1284

Cable

FFC

Sensor

BUS

24V

JST2

clutch

AFD

Moter

AFD PCB

LAN IF

Power Supply PCB

1.1 System Conﬁguration

MB460 The system conﬁguration of this product is shown in Figure 1-1-1.

Oki Data CONFIDENTIAL

44306601TH Rev. 2

Fig 1.1.1

7 /

MB470/MB480

RCLT

THERM

HCLT

MCLT

SON

HVIF

EXRCO

Fax IF

HEAD

PNLUSB

LAN

USB

CENT

DC Motor

Assy.

JST2

clutch

AMP8

USB IF

Centronics IF

JST24

FAX PCB

Panel PCB

LCD

Moter

CCD UNIT

JST20

Scanner Unit

JST9

28 JST28

FAN

2nd

Tray

JST7

Board-TT1

cover open switch

JST12

JST10

Cover open sensor

EXIT sensor

JST2

Temperature sensor

IP100

ALF

UPD7

202

AMP6

JST28

CN1

CN2

CN3

High Volt PCB

FUSER UNIT

AC Inlet

AC SW

86M

SPILYTAS 2

8051

I2C

16C550

UART

LC98500B

PU LSI

DDR

I/F

JST10

Nor

Nand

JST12

DIMM

Line

Tel

I2C

ROM

Kbit

74LVC

161284

Paper end

duplex

JST9

SCANNER

PCB

L629

SOLENOID

؁ພ

ROM IF

PCI

ROM IF

PCI

2NDTRAY

LED HEAD UNIT

TXD/

RXD

DP/

DP/DM

HEAD IF

HEAD Clock

RS232C

DP/

RS232C

PUIF

DDR-

SDRAM

I2C

DDR IF

IEEE1284

Cable

FFC

Sensor

BUS

24V

JST2

clutch

AFD

Moter

AFD PCB

LAN IF

Power Supply PCB

Line

Tel

The system conﬁguration of this product is shown in Figure 1-1-2.

Oki Data CONFIDENTIAL

44306601TH Rev. 2

Fig 1.1.2

8 /

1.2 Structure of MFP

A’

The insides of MB460/MB470/MB480 printers are composed of the following parts.

• Scanner part

• Electronic photography process part

• Paper path

• Control part (CU part/PU part)

• Power supply parts (high voltage part/low voltage part)

Figure 1-2 shows the composition of the MFP.

Oki Data CONFIDENTIAL

Fig 1.2.1

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1.3 Offer of Options

This product can be installed with the following option.

(1) Additional memory board 64MB/256MB

Fig 1.3.1

Oki Data CONFIDENTIAL

(2) Option Tray

Fig 1.3.2

44306601TH Rev. 2

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Oki Data CONFIDENTIAL

1.4 Speciﬁcations

Table 1.4.1

Category Item MB460 MB470 MB480

Exterior Dimensions

Weight 17Kg 18.5Kg 19Kg printer Engine Engine speed (A4/Letter) 28/30 PPM

Fast print time (A4)

Resolution LED Head 600dpi 1200dpi

CPU Core PowerPC405

RAM Standard 64MB

ROM Program NOR-Flash 2MB + NAND-Flash 64MB Power Consumption

Operation Environment (temperature)

Operation Environment (humidity)

Duty Cycle Maximum 50,000 pages per month 70,000 pages per

Life Printer 180,000 pages or 5 years

Width 447mm 447mm Depth 432mm 432mm Height 500mm 529mm

Auto Duplex Standard First Print Out Time Less than 5.5 seconds Warm-up Time from Power On 60 seconds

from Power Save 25 seconds

Low noise mode Unavailable

Maximum input resolution F/B:1200 x 600dpi / ADF:1200 x 300dpi Output resolution 600x600dpi

1200x600dpi

2400x600dpi(half

speed) step 4 step 600 x 600dpi Economic mode toner saving by lowering light

I-Cache 16KB D-Cache 16KB Clock 297MHz Bus width 32bit

Option 64MB/256MB available (SO-DIMMx1)

Max. 800W Normal Operation 500W Stand-by 100W Power Saver Mode 10W or less Energy Star Application Yes In operation 10 At stand-by 0 - 43 , power off In storage (1 year max.) -10 At transport (1 month max.) -29 At transport (1 month max.) -29 In operation 20%-80%, 50%-70%

At stand-by 10%-90%, Max. wet bulb temperature : 26.8 with

In storage 10%-90%, Max. wet bulb temperature : 35 At transport 10%-90%, Max. wet bulb temperature : 40

Scanner Flatbed:50,000pages or 5years / ADF:240,000 pages

Duty cycle (M=L/12, A=L/12/5) 35,000 pages per month max.

MTBF (2.3% duty) 6,000 hours MPBF 24,000 pages MTTR 30 minutes Toner life@ISO19752

consumption 3,500

Starter 1500

- 50 , with drum and without toner

Max. wet bulb temperature : 25

5,000 pages per month average

- 32 , 17 - 27

- 43 , with drum and toner

- 50 , with drum and toner

7,000

1200x1200dpi

600x600dpi

power off

month

or 5years

3,500 7,000

12,000

44306601TH Rev. 2

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Oki Data CONFIDENTIAL

Category Item MB460 MB470 MB480

Life Image drum life

(w/o power save)

Operation noise Operating 56dB

Standby 32dB Power save mode Back ground level

Paper handling Paper Input

Capacity

Paper Output Capacity

Paper Size Legal/universal or A4 cassette/

Universal cassette

MP Tray 13,13.5,14Legal,Letter,Executive,A4,A5,B5,A6,C5,C6,DL

Duplex Letter,A4,up to Legal14"

Minimum paper size

Paper Weight 1st Tray 16~32 lb. (60.16~120.32gsm)

Status switch/ Sensor

Communication Interface

Emulation Standard PCL6/5e , SIDM PCL6/5e , SIDM , PS3

Option RAM RAM DIMM 1slot (64MB or 256MB)

Others USB-IF logo Available

1st Tray 3.94"x8.3" (210mm) 2nd Tray 5.8"x8.3"(210mm,A5) MP Tray 3.4"x5.5"(140mm) Duplex Auto Duplex Letter,A4;Manual Duplex 3.4"x5.5"

2nd Tray 16~32 lb. (60.16~120.32gsm) MP Tray 16~43 lb. (60~160gsm) (Enve. : N/A) Duplex Print 16~28 lb. (60.16~105.28gsm) Paper tray empty Available Paper low N/A Toner Empty Available Cover open Available Fuser temp Available Paper size N/A Stacker full N/A USB Host IF N/A USB Device IF USB connector Type B (2.0 Hi-Speed) Ethernet I/F RJ-45 (10/100 Base TX) Tel/Line I/F N/A RJ-11x2 (PSTN/PBX , Ext-TEL) Parallel I/F CEN36 (IEEE1284) Wireless LAN N/A Card Slots N/A

Option N/A

2nd tray 530 sheet tray Emulation N/A

Windows logo Available Operation by UPS Operation by UPS (outage free power supply) is not

Continuous 25,000 pages (at simplex) 3 pages per job 20,000 pages (at simplex) 1 page per job 12,000 pages (at simplex)

1st Tray Legal/universal cassette

250 sheets

2nd Tray (optional) Legal/universal cassette 530 sheets MP Tray Single sheet

manual feed slot Face up N/A Face down 150 sheets

13,13.5,14Legal,Letter,Executive,A4,A5,B5

statement(ﬁrst cassette only)

,Com-9,Com-10,Monarch,statement,Free

guaranteed. (Do not use UPS)

50 sheets Multi Purpose Tray

Free

Legal/universal

cassette

530 sheets

44306601TH Rev. 2

12 /

3 4

1.5 Interface Speciﬁcation

1.5.1 USB Interface Speciﬁcation

1.5.1.1 Outline of USB Interface

(1) Basic Speciﬁcation USB (2) Transmission Mode Hi speed (480Mbps±0.05% max.) (3) Power Control Self power device

1.5.1.2 USB Interface Connector and Cable

(1) Connector

• Printer side: B receptacle Upstream port Equivalent of UBR24-4K5C00 (made by ACON)

Oki Data CONFIDENTIAL

Connector pin arrangement

Fig 1.5.1

• Cab

le side: B plug (off)

(2) Cable Cable length: Specification Cable of USB2.0 spec. of less than 5m.(less than 2m is

recommended)

(

Shielded cable is used here.)

1.5.1.3 UBS Interface Signal

Table 1.5.1

Name of Single Function 1 Vbus Power Supply (+5V)(red) 2 D - Data transmission (white) 3 D + Data transmission (green) 4 GND Single ground (black)

Shell Shield

44306601TH Rev. 2

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1 8

1.5.2 Network Interface Speciﬁcation

1.5.2.1 Outline of Network Interface

Table 1.5.2 Basic Speciﬁcation of Network Interface

Protocol Family Network Protocol Application

TCP/IP ARP,IP,ICMP,IPv6,TCP,UDP LPR,Port9100,FTP,HTTP,HTTPS,IPP,

SNMPv1/v3,TELNET,DHCP/BOOTP,DNS,

DDNS,WINS,UPnP,Bonjour,SNTP,SMTP,

POP3,Windows Rally(WSD Print,LLTD),

ODNSP,SSL/TLS,LDAP,Kerberos

NBT/NetBEUI SMB,NetBIOS,NetBIOS over TCP

EtherTalk ELAP,AARP,DDP,AEP,NBP,ZIP,R

TMP,ATP,PAP

IEEE802.1X EAP-TLS,PEAP

Oki Data CONFIDENTIAL

1.5.2.2 Network Interface Connector and Cable

(1) Connector 100 BASE-TX/10 BASE-T (automatic switch, no simultaneous use)

Connector pin arrangement

Fig 1.5.2

(2)

Cable

Unshielded twist pair cable with RJ-45 connector (Category 5 is recommended.)

1.5.2.3 Network Interface Signal

Table 1.5.3

Pin No. Singles Single Direction Functions

1 TXD+ FROM PRINTER Send Data + 2 TXD- FROM PRINTER Send Data 3 RXD+ TO PRINTER Received Data + 4 - - Unassigned 5 - - Unassigned 6 RXD- TO PRINTER Received Data 7 - - Unassigned 8 - - Unassigned

44306601TH Rev. 2

14 /

1.5.3 Telephone Line Interface Speciﬁcation (Only MB470/MB480)

A1 A6

B1 B6

TEL

LINE

1.5.3.1 Outline of telephone Line Interface

The machine will reliably communicate with distant stations over voice-level telephone line.

1.5.3.2 Telephone Line Interface Connector and Cable

Printer side : RJ-11 Cable side : TEL Cable (Cable with plug)

Connector contact arrengement

Oki Data CONFIDENTIAL

1.5.3.3 Telephone Line Interface signal

Contact No. Functions

TEL A1 Unspeciﬁed

A2 Unspeciﬁed A3 TCP A4 TCP A5 Unspeciﬁed A6 Unspeciﬁed

LINE B1 Unspeciﬁed

B2 Unspeciﬁed B3 TCP B4 TCP B5 Unspeciﬁed

Fig 1.5.3

Tabel 1.5.4

TCP : Terminal Connection Point

44306601TH Rev. 2

B6 Unspeciﬁed

15 /

1.5.4 Parallel Interface Speciﬁcations

118

1936

1.5.4.1 Parallel Interface Overview

Table 1.5.5

Item Details Corresponding mode Comatible mode, nibble mode, ECP mode Data bit length Compatible: 8, Nibble: 4, ECP: 9 bit

1.5.4.2 Parallel Interface Connector and Cable

(1) Connector Printer: 36pConnector (Female) 57LE-40360-12 (D56) (DDK Ltd.) equivalent product Cable: 36pConnector (Male) 57FE-30360-20N (D8) (DDK Ltd.) equivalent product

Oki Data CONFIDENTIAL

Pin arrangement from interface cable side

Fig 1.5.4

Cable

(2)

Use a cable shorter than 1.8m. (Use a cable with a shielded twisted-pair wire for to prevent noise interference.)

1.5.4.3 Parallel Interface Level

Low Level : 0.0V to +0.8V High Level : +2.4V to +5.0V

44306601TH Rev. 2

16 /

2. oPeRaTional exPlanaTion

2.1 Electrophotographic process mechanism

(1) Electrophotographic process

The following describes the overview of electrophotographic process.

1. Charging Equally charge the surface of image drum by implying negative voltage to the charged roller due to negative charge.

2. Exposure The light from LED Head is exposed on the negative-charged surface of image drum. The surface electrical potential of the exposed part of image drum surface becomes lower. Then forms electrostatic latent image.

3. Development Negative-charged toner is attracted to the electrostatic latent image due to electrostatic while touching the image drum. Then forms viewable image.

4. Transfer Overlap paper on the surface of OPC drum, from the backside of paper transfer toner image to the paper by applying electrical charge by transfer roller.

5. Drum cleaning The remaining toner on the image drum that is not transferred is made to be equable by cleaning roller. And is temporarily attracted to the cleaning roller due to electrostatic.

6. Fusing The toner image that is transferred to paper is fused on paper by heat and pressure.

Oki Data CONFIDENTIAL

44306601TH Rev. 2

17 /

Oki Data CONFIDENTIAL

Image drum

Charged roller

Power

Charged roller

LED head

Image drum

Paper

Power

1. Charging Charge the image drum surface by implying voltage to the charged roller that contacts the image

drum surface.

Fig 2.1.1

2. Exposure The light emitting from the LED Head will be exposed to the negative charged image drum. When

the surface electric potential of exposed part of the image drum goes to decrease, the electrostatic latent image complying with image signal is formed.

Image drum is coated by basic layer (UL), charge generating layer (CGL), charge transferring layer (CTL) on the basic material aluminum. The thickness of the organic light sensor (OPC) that is consisted by CTL and CGL is approximate 20µm.

44306601TH Rev. 2

Fig 2.1.2

18 /

Oki Data CONFIDENTIAL

Image drum

Charged roller

Image developing plate

Toner supply roller

Image developing roller

3. Image development

Toner is attracted to the electrostatic latent image on the image drum surface, then the electrostatic latent image changes to toner image.

1 As

the roller on the supply spot of toner rotates while scrubbing the image-developing roller, ﬁction electricity occurs between the image developing roller and toner; toner is attracted to the image-developing roller.

e toner that has been attracted to the image-developing roller is dropped down to

2. Th the developing plate to make a thin toner ﬁlm on the image developing roller side.

Fig 2.1.3

3 The toner is attracted by the exposed part (Low electrical potential part) of the image

drum when the image drum contact the image developing roller, so as to see the electrostatic latent image.

44306601TH Rev. 2

19 /

Oki Data CONFIDENTIAL

Image drum

Basic material

Toner feeding roller

While the cover is closed it will be connected and bias will be applied.

Image developing roller

Note! The necessary bypass voltage in image processing is impressed on the toner feeding

roller and image developing roller as show below.

Fig 2.1.4

44306601TH Rev. 2

20 /

Oki Data CONFIDENTIAL

Image drum

Transfer roller

Paper

Power

4. Transfer The transfer roller, which is from conductive sponge material, is created to meet intimate

attachment of image drum roller surface and feeding paper. The feeding paper is set up on the surface of image drum. Plus charge, which is the converse polarity with toner polarity, is applied from the backside of the paper.

As high plus voltage is applied to transfer roller from the power supply, the plus charge on the transfer roller surface is induced and transferred to the paper while the paper contact the transfer roller. The negative charged toner, which has been attracted to the image drum surface, is transferred to the surface of feeding paper by the plus charge of the backside of the paper.

Fig 2.1.5

44306601TH Rev. 2

21 /

Oki Data CONFIDENTIAL

Power supply

Cleaning roller

Image drum

Transferring roller

5. Drum cleaning

1 Cleaning

After the completion of transferring, the remaining toner on the image drum is temporarily

attracted by the electrostatic and the image drum surface is cleaned.

Fig 2.1.6

2 Roller cleaning

In the following case, there is a need of cleaning the charged roller, transfer roller, and cleaning roller.

•

Warming up as switching on the power supply

•

Warming up after open-close of the cover

•

In case of termination of printing operation

•

By periodically change the bias voltage that is implied to each roller during continuous

printing, transfer the attached toner from roller to image drum and then return it to developing device.

44306601TH Rev. 2

22 /

Oki Data CONFIDENTIAL

Separating clutch

Feeding paper

Heater

Heat roller

Thermistor

Backup roller

Pressuring spring

Thermostat

6. Fusing

After the termination of transfer the unsettled toner image is settled to paper by heat and pressure while passing between Heat roller and Back up roller. Heat roller is Teﬂon coated and is mounted by heater that can generate heat (Halogen lamp).

The thermistor that contacts the Heat roller adjusts the Heat roller temperature to the temperature specified by the menu complying with the paper width. For safety the thermostat shuts off the voltage supply to the Heater by opening the thermostat in the case of abnormally temperature increasing.

The back up roller is held by the pressure springs on each terminal due to the pressure applied.

Fig 2.1.7

44306601TH Rev. 2

23 /

Oki Data CONFIDENTIAL

：

：：：

：

Face down stacker

Face up stacker

The 2nd ejecting roller

The 1st ejecting roller

Backup roller

Duplex unit

Ejecting sensor lever

Resist roller

MPT feeding roller

Multipurpose tray

Conveying roller

Transferring roller

Pulse motor

Paper conveying route

Driving roller (Continuous rotation) Driving roller (Control rotation) Driving roller

Paper level indicator lever Indicating lever

Photo sensor Micro switch

Magnetic clutch

Solenoid

DC motor

Heat roller

Conveying roller

Pick up roller

Feeding roller

Tray 1

Tray 2

2nd tray unit (option)

Entrance sensor lever

Image drum

Writing out sensor lever

2.2 Printing process

The paper fed from Tray 1 and Tray 2 is conveyed by feeding roller, conveying roller, and resist roller. When feeding paper is from MPT, it is conveyed by MPT, feeding roller, and resist roller. After that the feeding paper that is conveyed by image drum and the nip part of transfer roller forms toner image on the paper through electrophotographic process. And then, the toner on the paper is fused by the heat and pressure as the fuser unit passing through. The paper that fused the toner image is ejected from the face down stacker of the ejecting roller. In the case of face up ejecting, it needs to open the backside cover and install face up stacker. (It is unavailable for duplex printing while it is face up ejecting.)

The above is about the operations at simplex printing, yet the below explains the operations at duplex printing. While duplex printing, the paper, which ﬁrstly passed through the fuser unit after the backside printing, is conveyed to the inward of Duplex Unit, by the reverse operation of the second ejecting roller that is a certain time after removing the ﬁrst ejecting roller of the paper rear side. Paper, is conveyed by conveying roller of Duplex Unit, and then merges to the same route with the feeding paper that is from the tray. Onwards, it is the same with the simplex printing operation by the feeding paper from tray.

44306601TH Rev. 2

Fig 2.2.1

24 /

Oki Data CONFIDENTIAL

Resist roller

Resist clutch

Entrance sensor lever

Conveying roller

Paper feeding roller

Pick up roller

DC motor (Counterclockwise rotation)

Paper feeding clutch

Paper

Writing out sensor lever

Resist clutch

Writing out sensor lever

Resist roller

Entrance sensor lever

Paper feeding clutch

MPT paper feeding roller

Paper

DV motor (Counterclockwise rotation)

(1) Paper feeding from Tray 1

1. As DC motor rotating (Counterclockwise rotation), if set the paper feeding clutch as ON, as the paper feeding roller and pick up roller rotating, the paper that is inside the tray is conveyed.

2. T

he paper is conveyed by the conveying roller. After the entrance sensor level set to be ON, it bumps into the stopping resist roller, a certain more amount of paper is conveyed. (This corrects the paper skew.)

f set the resist clutch as ON, the paper is conveyed by resist roller.

3. I

Fig 2.2.2

(2) Paper feeding from Multipurpose tray (MPT)(MB470,MB480)

1. As DC motor rotating (Counterclockwise rotation), if set paper feeding clutch as ON the MPT paper feeding roller starts to rotate, the paper in the tray is conveyed.

fter setting the entrance sensor lever as ON, the paper bumps into the stopping resist roller, a

2. A certain more amount of paper is conveyed. (This corrects the skew of paper.)

f set the resist clutch as ON, the paper is conveyed by resist roller.

3. I

44306601TH Rev. 2

Fig 2.2.3

25 /

(3) Fuser unit and paper ejecting

Eject roller

Planet gear

Paper route

Solenoid

Fuser unit

Heat roller

DC motor (Counterclockwise rotation)

1. The fuser unit and eject roller is

2. Si

multaneously the eject roller rotates, and then the paper is ejected.

Oki Data CONFIDENTIAL

Fig 2.2.4

44306601TH Rev. 2

26 /

Oki Data CONFIDENTIAL

Fuser unit

Heat roller

DC motor (Counterclockwise rotation)

Resist roller

Resist clutch

Resist Entrance sensor lever

Duplex conveying roller

Writing out sensor lever

Duplex conveying roller

The 1st ejecting roller

The 2nd ejecting roller

Planet gear

Solenoid (OFF)

Solenoid (ON)

[ Normal rotation ]

[ Inverse rotation ]

Belt

Duplex conveying rollerDuplex conveying roller

Belt

(4) Paper reversing and paper multi-feeding

1. TRemoving the first eject roller at the rear part of paper and set the solenoid as ON for a while, then the planet gear starts to move, the second eject roller starts inverse rotating (Counterclockwise rotation).

2. B

y the inverse rotation of the second eject roller the paper is inversely rotated and conveyed to

Duplex.

aper is conveyed by Duplex conveying roller.

3. P

fter setting the entrance sensor lever as ON, paper bumps into the stopped resist roller, still a

4. A certain more amount of paper is conveyed. (This corrects the skew of paper.).

f set the Resist clutch as ON, paper is conveyed by Resist roller.

5. I

Fig 2.2.5

44306601TH Rev. 2

Fig 2.2.6

27 /

Oki Data CONFIDENTIAL

Magnet

Agitating bar Agitating gear

Crack part

Agitating bar

Agitating gear

Sensor plate

Toner sensor

2.3 Toner entrance detection

• Equipment Toner entrance detecting equipment consists the agitating gear that agitating the agitating bar at

a certain speed and magnet that is on the agitating bar.

Fig 2.3.1

•

Operation Detecting the toner low by monitoring the congruous time intervals between the magnet that is

set on the sensor plate and the magnet attached on the agitating bar,

Operation in toner full status

•

The crack part of agitating gear meshing with

the projection portion of agitating bar, the agitating bar rotates in accordance with the rotating of gear.

•

Even after the magnet part of the agitating

Bar reaches the highest position, it still rotates at the same speed by the pressure of the agitating gear due to the toner resistance.

Fig 2.3.2

Operation in toner low status

•

When the magnet part of the agitating bar

reaches the highest position, because there is no resistance from toner, the agitating bar drops earlier than the gear by the gravity itself, and stops by that status.

For this reason, the time that the magnet

of agitating Bar magnetic attracts the magnet of sensor plate becomes longer. The toner low status can be inspected by

Fig 2.3.3

monitoring this time.

44306601TH Rev. 2

28 /

Toner full status

Oki Data CONFIDENTIAL

Fig 2.3.4

Toner low status t1

ner sensor alarm actuates if there is not any change on toner sensor.

• To

• Toner sensor is not monitored while main (drum) motor is stopping.

t2 t1,t2: Magnet attracting time

Fig 2.3.5

44306601TH Rev. 2

29 /

Oki Data CONFIDENTIAL

3. MfP insTallaTion

3.1 Precautions and Prohibition

Table 3.1.1

• Do not install the MFP in the vicinity of high temperature or ﬁre.

• Do not install the MFP at the place where a chemical reaction may take place (laboratory, etc.).

• Do not install the MFP near ﬂammable solution like alcohol, thinner, etc.

• Do not install the MFP at the place where a small child can reach.

• Do not install the MFP at an unstable place (unsteady frame, tilted place, etc.).

• Do not install the MFP at a highly humid or dusty place or under the direct sunshine.

• Do not install the MFP under the environment of sea breeze or caustic gas.

• Do not install the MFP at a highly vibrating place.

• When you drop the MFP or damage the cover, remove the power plug from the outlet and contact the Customers’ Service Center.

Electric shock, ﬁre or injury may occur.

• Do not connect the power cord, printer cable and earth wire as otherwise directed by the Manual. A ﬁre may break out.

• Do not insert a thing in the vent hole.

Electric shock, ﬁre or injury may occur.

• Do not place a cup with water on the MFP.

Electric shock or ﬁre may occur.

• Do not touch the fuser unit when you open the printer cover.

Burn may occur.

• Do not throw the toner cartridge or image drum cartridge into ﬁre.

Burn may occur by the dust explosion.

• Do not use a highly ﬂammable spray near the MFP.

Fire may break out as there are high temperature parts inside the printer.

• When the cover becomes abnormally hot, a smoke arises or a strange odor comes out, remove the power plug from the outlet and contact the Customers’ Service Center.

Fire may break out.

• When liquid like water drops inside the MFP, remove the power plug from the outlet and contact the Customers’ Service Center.

Fire may break out.

• When a thing like a clip drops inside the MFP, remove the power plug from the outlet and take out that thing.

• Do not operate or disassemble the MFP as otherwise directed in the Manual.

Electric shock, ﬁre or injury may occur.

44306601TH Rev. 2

30 /

Oki Data CONFIDENTIAL

Table 3.1.2

• Do not install the MFP at the place where the vent hole is blocked.

• Do not install the MFP on the shaggy carpet.

• Do not install the MFP at the place with little draught or without ventilation like a room with no window.

• Install the MFP away from the monitor TV.

• When the MFP is to be moved, hold both ends of the printer.

• This MFP weighs about 19kg (MB480).

• When to switch the power on or while printing, do not come near the paper exit of the MFP.

Injury may occur.

As regards the items of caution, explain to the customer showing the items of caution of the User’s Manual. Particularly, explain fully about the power supply cord and earth cable.

44306601TH Rev. 2

31 /

3.2 MFP Unpacking Procedure

This MFP weighs about 19kg (MB480).

•

Open the upper lid.

•

Take out the accessor

•

Remove the upper buffer material.

•

Take out the equipment

Oki Data CONFIDENTIAL

Personal injuries may occur.

y box.

44306601TH Rev. 2

Fig 3.2.1

32 /

30cm

20cm

100cm

50cm

3.3 MFP Installation Instructions

•

Install the MFP at a place under the following temperature and humidity: Amb Ambient Humidity : 20 to 80% relative humidity Maximum Wet-Bulb Temperature : 25°C

•

Be careful not to be bedewed.

•

When the MFP is to be installed at a place where the humidity is less than 30%, use a

humidiﬁer or a static electricity prevention mat.

ient Temperature : 10 to 32°C

Installation Space

•

Place the MFP on a ﬂat desk with enough space for the legs of the MFP.

•

Secure enough space around the MFP.

Top View

Oki Data CONFIDENTIAL

Side View

Fig 3.3.1

Fig 3.3.2

44306601TH Rev. 2

33 /

3.4 Packed Units and Attachments

•

Conﬁrm whether there are scratches, stains, etc. on the exterior of the machine.

•

Conﬁrm whether there are lacking items, damages, etc. among the accessories.

•

If anything unusual is found, contact the user’s section in charge and follow its

instruction.

Personal injuries may occur.

This MFP weighs about 19kg (MB480).

MFP (main body)

Oki Data CONFIDENTIAL

Fig 3.4.1

Starter Toner Cartridges

Fig 3.4.2

Explain to customers that the toner cartridge and the image drum cartridge are separable.

MFP Software CD-ROM Power Cord Warranty and Registration Card Users Manuals

Note! The printer cable is not included in the accessories.

44306601TH Rev. 2

34 /

Pad-Middle

Film

Silica-Gel pac

protection pad

3.5 Assembly Procedure

3.5.1 MFP Main Body Remove Protective Equipment

(1) Lift the scanner. (2) Remove the Pad-Middle. (3) Remove the Film with two Silica-Gel packs.

Oki Data CONFIDENTIAL

Fig 3.5.1

(4) Remove the eight adhesive tapes on the outside of MFP.

Fig 3.5.2

(5) Open the document cover. Then remove the four adhesive tapes and two protection pads.

44306601TH Rev. 2

Fig 3.5.3

35 /

Paper Cassette

Open Button

A6 size paper

Retainer

MB480

(6) Pull out the paper cassete.

A6 paper

(7) Remove the Retainer and the A6 size paper. (In case of MB480 )

Oki Data CONFIDENTIAL

Fig 3.5.4

(8) Open Multi-purpose Tray. Remove the A6 size paper. (In case of MB470/MB480 )

44306601TH Rev. 2

Fig 3.5.5

36 /

Install Image Drum Cartridges

Image Drum Cartridge

Protection sheet

(1) Pull out the image drum cartridge gently.

Note! • Handle the image drum very carefully as it is quite easily

injured.

• Do not expose the image drum cartridge to direct sunshine or bright light (approximately 1,500 lux or more) . Do not leave it more than 5 minutes under the room light.

Oki Data CONFIDENTIAL

Fig 3.5.6

(2) Place the image drum cartridge on a ﬂat desk, remove the tape which fastens the protection

sheet and pull it out in the direction of the arrow.

Note! Do not work on the image drum off the desk top.

Fig 3.5.7

(3) Holding the image drum by its top center , lower it into place in the printer locating the pegs (A

& B) at each end into their slots in the sides of the printer cavity (C) .

44306601TH Rev. 2

Fig 3.5.8

37 /

Oki Data CONFIDENTIAL

(4) Release the lock by pushing the knob of the toner cover in the direction of the arrow and

remove the toner cover.

Fig 3.5.9

(5) Gently shake the cartridge from end to end several times to loosen and distribute the toner

evenly inside the cartridge.

(6) Remove the wrapping material and peel off the adhesive tape from the underside of the

cartridge.

Fig 3.5.10

44306601TH Rev. 2

38 /

Oki Data CONFIDENTIAL

(7) Holding the cartridge by its top center with the coloured lever to the right , lower it into the

printer over the image drum unit from which the toner cover was removed. Insert the left end of the cartridge into the top of the image drum unit ﬁrst , push it against the pins on the drum unit then lower the right end of the cartridge down onto the image drum unit.

Fig 3.5.11

(8) Pressing gentry down on the cartridge to ensure that it is ﬁrmly seated , push the coloured

lever towards the rear of the printer. This will lock the cartridge into place and release toner into the image drum unit.

Fig 3.5.12

Note! • The starter toner (the toner cartridge attached to the product at the time of(purchase)

• Conﬁrm whether the lever of the toner cartridge is turned fully in the direction of the

44306601TH Rev. 2

an print approximately 1,000 sheets of A4 paper in case of 5% coverage.

(1,500 sheets of A4 paper in case of ISO-pattern.)

arrow when Toner Empty Messages are displayed in the LCD.

39 /

Oki Data CONFIDENTIAL

Lock

Unlock

Scanning head

Lamp

Scanning head

Unlocking Scanning head The scan unit is locked during transport to protect the scanning mechanism from

being damaged. Be sure to unlock the scan unit before using the machine.

(1) Open the ADF Doc Lid. (2) Move the lock switch to the “Unlocked position”.

(The lock switch is located on the left corner on the ﬂat bed.) (3) Close the ADF Doc Lid.

Fig 3.5.13

Note: If you need to move your MFP or Scanner unit for repair or any other reason, be sure

ock your Scanner before moving. To lock your Scanner, please do the following,

to l

1. Turn off your MFP.

2. If the scanning head is not located at the left end, turn the MFP on to return the scanning head to the left end. After the scanning head is returned to the left end, turn the power supply off.

3. Move the lock switch to the “Locked Position”.

44306601TH Rev. 2

Fig 3.5.14

40 /

Plate

Cork

Paper Guide

Load Paper in Paper Cassette

Printing face down

Paper Stopper

Paper life display

(1) Pull out the paper cassette.

Note! Do not remove the cork on the plate.

) Conform the paper guide to the paper size and ﬁx it ﬁrmly.

Oki Data CONFIDENTIAL

Fig 3.5.15

(3) Shufﬂe the sheets of paper and arrange up, down, left and right properly.

Fig 3.5.16

(4) Make the printable side down and set the paper.

•

Plac

Note!

Fix the paper by the paper stopper.

(5)

e the paper in front of the paper cartridge.

•

et the paper not to exceed “

”mark of the paper guide. (250 sheets weighing 70kg)

▼

(6) Return the paper cassette to the MFP.

44306601TH Rev. 2

Fig 3.5.17

41 /

Load Paper in the Manual Feed Opening

Manual Feed Opening

Manual Feeding Guide

Manual feeding opening

Manual Feeding Guide

Manual feeding opening

Manual Feeding Guide

(1) Put a ﬁnger in the dent at the center of the manual feed opening and pull forward.

Fig 3.5.18

(2) Conform the manual feeding guide to the size of the paper.

Oki Data CONFIDENTIAL

(3) Arrange the left and right of the paper. (MB460) (MB470/MB480)

Fig 3.5.19

(4) Make the printing side up and insert the paper straight to the rear end along the manual

feed guide.

(MB460) (MB470/MB480)

44306601TH Rev. 2

Fig 3.5.20

42 /

Oki Data CONFIDENTIAL

Paper Guide

Setup orientation of papers

Face Up

ABC

Setup orientation of papers

Face Down

Align in the upper-left corner

Placing the Original In the Auto Document Feeder

(1) Make sure your document is free of staples, paper clips and is not tore out.

(2) If you have multiple pages, fan your document(s) to avoid occasional paper jam. The ADF

holds up to 50 pages at one time.

Fig 3.5.21

Place your document(s) with the text FACE UP in the ADF.

(3)

(4) Adjust the Paper Guides to center the document(s) in the ADF.

On the Document Glass

(1) Place your original with the text face down on the document glass.

Fig 3.5.22

44306601TH Rev. 2

Fig 3.5.23

43 /

Oki Data CONFIDENTIAL

3.5.2 Power Cable Connection Conditions for Power Supplies

•

Observe the following conditions:

ernate Current (AC) : 110 ~127VAC(Range 99~140VAC)/220 ~240VAC(Range

Alt

198~264VAC)

Power Supply Frequency : 50Hz or 60Hz±2%

•

Use a voltage regulator when the power supply is not stable.

•

The maximum power consumption of this MFP is 800W. Conﬁrm that the power supply has

sufﬁcient extra capacity.

Table 3.5.1

It may expose you to electric shocks or cause a ﬁre.

• Never fail to switch off the power supply at the time of connection or removal of the electric cord and earth cable.

• Always connect the earth cable to the earth terminal equipped only for that purpose. Never connect the earth cable with water pipe, gas pipe, telephone cable earth terminal, lightening rod, etc.

ways grasp the power plug at the time of connection and removal of the electric cord.

• Al

• Always make sure that the electric plug is inserted fully into the outlet.

• Do not connect or disconnect the electric plug with the wet hand.

• Do not install the electric cord at the place liable to be stepped on and do not put things on the electric cord.

• Do not bundle up or tie up the electric cord

• Do not use the damaged electric cord.

• Do not put many loads on one electric outlet.

• Do not connect this MFP to the same outlet with other electric machines. Particularly, erroneous operation may occur by electric noise when the same outlet is shared by the air conditioner, duplicator, shredder, etc. at the same time. When the same outlet had to be used, use a noise ﬁlter or noise cut transformer on the market.

• Use the attached electric cord only.

• Do not use an extension cord. Use the cord of over rating 15A if you had to use one.

• When you use the extension cord, the MFP may not operate normally due to the drop of AC voltage.

• Do not shut down the power supply or remove the power plug while printing.

• Disconnect the power cord when the MFP would not be used for some long while due to consecutive holidays or journey.

As to the connection of the electric cord and earth cable, explain fully to the customer showing the User’s Manual.

44306601TH Rev. 2

44 /

Connect Power Supply Cord

Earth Terminal Earth Cable

Note! Be certain the power switch is placed in the OFF (O) position.

(1) Insert the electric cord in the MFP. (2) Connect the earth wire to the earth terminal of the AC power source outlet.

(3) Connect the AC power cord insertion plug to the AC power source outlet.

Oki Data CONFIDENTIAL

Press ON (I) of Power Switch

Fig 3.5.24

Fig 3.5.25

44306601TH Rev. 2

45 /

Memory Cover

Knob

3.5.3 Installation of Optional Components

(1) Extension Memory Installation

Fig 3.5.26

Table 3.5.2

Type On-board Memory slot Total

N/A (Standard) 64MB - 64MB

64MB option

DIMM

MEM64D

256MB option

DIMM

MEM256D

64MB 64MB 128MB

64MB 256MB 320MB

Oki Data CONFIDENTIAL

Note! • You m

•

A 64MB memory is installed as standard in the memory slot. If you use a 256MB

ust use genuine Oki Original. Otherwise, the memory will not work.

memory, remove the 64MB memory before use.

Switch the power supply of the MFP off and pull out the electric cord.

Note! If installed with the switch on, an electric shock or a trouble to the MFP may occur.

Fig 3.5.27

Open the memory cover.

1) Release the lock by pushing the knob of the memory cover in the direction of the arrow and open the memory cover.

44306601TH Rev. 2

Fig 3.5.28

46 /

Oki Data CONFIDENTIAL

Memory Cover

Install the memory.

Note! Do not touch electronic parts and connector terminal.

1) Neutralize static electricity by letting the bag touch the metal part before taking out the memory from the bag.

ay attention to the direction of the memory. There is a cut on the terminal part of the

2) P memory to ﬁt it into the connector of the slot.

3) Insert the memory in the empty slot and bring it down to the circuit board side.

Fig 3.5.29

Close the memory cover.

1) Close the memory cover. Conﬁrm that it is ﬁrmly locked.

44306601TH Rev. 2

Fig 3.5.30

47 /

(2) Installation of second tray unit

O I

Holes in the printer bottom

Protrusions

This tray is intended to increase the amount of paper that can be loaded in the MFP. It holds 530 sheets of 70kg ream weight paper, allowing to print 1110(MB480) sheets continuously when combined with the standard paper cassette and multi-purpose tray.

Turning OFF the MFP power and disconnecting the power cord Note! If an expansion memory is installed with the power switched ON, the MFP may be

oken.

Oki Data CONFIDENTIAL

Fig 3.5.31

Fig 3.5.32

Placing the MFP on the second tray unit. Note! The MFP weighs Approx. 19kg (MB480).

1) Align the holes in the bottom of the MFP to the protr

2) Place the MFP gently on the second tray unit.

usions of the second tray unit.

44306601TH Rev. 2

Fig 3.5.33

48 /

Oki Data CONFIDENTIAL

Cover-piece

B460/B470 B480

2nd-piece

3) Remove the four Cover-pieces in the direction of the arrow. Do not put or drop the Cover-pieces inside the MFP.

Fig 3.5.34

4) Attach the two 2nd-pieces as shown in Fig. 3.5.35.

To detach the second tray unit, follow the same procedure inversely.

Fig 3.5.35

44306601TH Rev. 2

49 /

Oki Data CONFIDENTIAL

3.5.4 Conﬁrm the Recognition of Option

In order to conﬁrm that the items of option are correctly installed, conduct the menu map printing referring to “3.6 Conﬁguration Page Print”.

(1) Conﬁrm Recognition of Additional Memory Conﬁrm the contents of the conﬁguration pages. Conﬁrm the total memory size displayed as “TOTAL MEMORY SIZE” in the header portion.

Fig 3.5.36

(2) Conﬁrm Recognition of second tray Conﬁrm the contents of the conﬁguration pages. Conﬁrm the displayed as "Tray 2" in the header portion.

Fig 3.5.37

44306601TH Rev. 2

50 /

3.6 Conﬁguration Page Print

Make sure that the MFP operates normally.

(1) Set sheets of A4 paper in the tray. (2) From the panel menu, select "Menu". (Press the down button to go to "Menu" and then press the enter button.) (3) Select "Print Information". (Press the down button to go to "Print Information" and then press the enter button.) (4) Select "Conﬁguration". (5) Select "Execute".

(Sample) MB460

Oki Data CONFIDENTIAL

44306601TH Rev. 2

Fig 3.6.1

51 /

(Sample) MB470

Oki Data CONFIDENTIAL

44306601TH Rev. 2

Fig 3.6.2

52 /

(Sample) MB480

Oki Data CONFIDENTIAL

44306601TH Rev. 2

Fig 3.6.3

53 /

Oki Data CONFIDENTIAL

3.7 Network Information Print Conﬁrm the network information print.

(1) Push the TEST switch beside the network connector on the back of the MFP for 5 seconds

and release. Then the network information will be printed.

(Sample) In case of MB460

44306601TH Rev. 2

Fig 3.7.1

54 /

UBS Interface Connector

3.8 Connection Procedures <USB Connection> Prepare a USB Cable.

Note! • The cable of the MFP is not attached. Users should buy seperately.

•

Obtain the cable of USB speciﬁcation by yourself. Use the USB cable of Hi-Speed speciﬁcation in case the connection is to be made

sing “HI-Speed” mode of USB2.0.

Oki Data CONFIDENTIAL

Fig 3.8.1

Switch off the power of the

Memo Although the USB cable can be connected or removed with the switch of the

computer and printer on, switch off the power of the MFP at this step in order to ensure installation of the MFP driver and USB driver later.

Connect the

(1) Plug the USB cable into the USB interface connector of the MFP. (2) Plug the USB cable into the USB interface connector of the computer.

Note! Be careful not to insert the USB cable into the network interface connector. Or e

MFP

with the computer.

lse it may cause troubles.

MFP

and computer.

44306601TH Rev. 2

Fig 3.8.2

55 /

Network Interface Connector

Prepare the LAN cable.

Switch off the power of the MFP and computer. Connect the computer and MFP.

(1) Plug the Ethernet cable into the network interface connector of the MFP. (2) Plug the Ethernet cable into the hub.

Oki Data CONFIDENTIAL

Fig 3.8.3

44306601TH Rev. 2

56 /

TEL Connector

LINE Connector

TEL

LINE

<TEL cable. Line Cable Connection>Note! only MB470/MB480 Prepare the TEL cable and Line cable. Preparing cores

Memo Use two longer ones of two kinds cores packed with MFP.

How to attach a cores

Memo Wind the TEL cable and Line cable on each core 1 time and then close the core

cases to ﬁx them. The cores must be about 80~100mm away from the each connector.

Oki Data CONFIDENTIAL

The places for connecting each cables

Fig 3.8.4

Fig 3.8.5

44306601TH Rev. 2

57 /

The state after connecting

Use for Fax. (Only MB470/MB480)

for TEL

for LINE

for USB

for LAN

Oki Data CONFIDENTIAL

Fig 3.8.6

Table 3.8.1

Cable Core Name Part No. Core shape Winding count

for TEL SFT-59SN 1051007C0001 Long Type 1

for LINE SFT-59SN 1051007C0001 Long Type 1

Do not also connect to switchboard directly or exclusive use line without any conversion

※

MB460 MB470 MB480

equipment.

44306601TH Rev. 2

58 /

3.9 Checking of User Paper

Set the medium the user uses, set up media type/weight, conduct menu map/demo print and conﬁrm that the toner does not peel off.

Oki Data CONFIDENTIAL

Table 3.9.1

Types Weight

55kg(64g/m2) Light

Regular paper*3

Postcard*4 - - - -

Envelope*4 - - - -

Label paper - Heavy Labels Labels

*1 *2

55-64kg(64-74g/m2) Medium Light Medium Light 65-75kg(75-87g/m2) Medium Medium

76-89kg(88-104g/m2) Medium Heavy Medium Heavy

90-105kg(105-120g/m2) Heavy Heavy

: The set-up of the media type at the time of shipment from the factory is “Plain”. : Thickness and type of paper can be set up by the printer driver. When they are set up

Setting values of the MFP Setting*2 for [Media weight]

Media weight Media type*1

Plain

of the printer driver

Light

by the printer driver, the printer driver set-up has priority. When “Automatic Selection” is selected by “Paper Feed Method” of the printer driver or when “Printer Set-up” is selected by “Paper Thickness”, printing is made by the set-up of the MFP.

: Thickness of paper for both side printing is 55~90kg in weight (64~105g/m2).

: Set-up of media weight and media type is not necessary for postcards and envelopes.

44306601TH Rev. 2

59 /

4. RePlaCeMenT of PaRTs

OFF

Shutting off

Reconnecting

Earth cable

Earth terminal

Warning

This section explains the ﬁeld replacement procedures for parts, assemblies and component units. While those replacement procedures refer to the disassembling of parts, follow the same procedures inversely for reassembling them. The part numbers (1, 2, etc.) employed in this manual are different from those assigned in the corresponding conﬁguration diagrams of Disassembly for Maintenance (44306601TL) and RSPL (44306601TR/44306621TR/44306641TR).

4.1 Precautions on the replacement of parts

(1) Prior to replacing a part, be sure to disconnect the AC cord and interface cable. (a) To disconnect the AC cord, always follow the procedure described below:

Switch the power switch of printer off “O”. Disconnect the AC insertion plug of the AC power cord from the AC power source. Disconnect the earth wire from the earth terminal of the AC power source outlet. Disconnect the AC cord and the interface cable with the printer.

Risk of Electric Shock

Oki Data CONFIDENTIAL

There is a risk of electric shock during replacement of the low voltage power supply. Use insulating gloves or avoid direct contact with any conducting part of the power supply,

and caution should be exercised during replacement. The capacitor may take one minute to complete discharge after the AC cord is unplugged.

Also, there is a possibility that the capacitor doesn’t discharge because of a breakage of the PCB, etc., so remember the possibility of electric shock to avoid electric shock.

(b) To reconnect the printer, always follow the procedure described below:

Connect the AC cord and the interface cable with the printer. Connect the earth wire to the earth terminal of the AC power source outlet. Connect the AC power cord insertion plug to the AC power source outlet. Switch the power switch of printer on “I”.

Fig 4.1.1

(2) Do not disassemble the MFP as long as it is operating normally. (3) Limit disassembly to a necessary minimum. Do not remove other parts than those speciﬁed in

the part replacement procedure.

(4)

Use the designated maintenance tools.

(5) Conduct disassembly by following the speciﬁed sequential order. Failure to observe this order

could damage the parts.

Screws, collars and other small parts should be attached provisionally to their original

(6)

positions, since they are liable to be lost.

(7)

When handling a microprocessor, ROM, RAM and other ICs and circuit boards, do not wear

gloves that tend to generate static electricity.

(8)

Printed-circuit boards should not be placed directly on an equipment or ﬂoor.

44306601TH Rev. 2

60 /

Oki Data CONFIDENTIAL

No. Q' ty Place of use RemarksService Tools

2 USB cable 1

Laptop computer

Must have maintenance

utilities installed

No. Q' ty Place of use

Remarks

Service Tools

No. 2-200 Philips

screwdriver, Magnetized

No. 3-100 screwdriver

No. 5-200 screwdriver

Digital multimeter

Pliers

E-ring pliers

Handy cleaner

Tweezers

Curved-tip type

Refer to the following note.

3~5 mm screws

[Maintenance Tools]

Table 4.1.1 indicates the tools necessary to replace printed-circuit boards and component units.

Table 4.1.1

Note:

Use a vacuum cleaner dealing with toner. Using a common vacuum cleaner may cause ﬁre.

Table 4.1.2 indicates the tools necessary for using maintenance utilities.

Table 4.1.2

44306601TH Rev. 2

61 /

4.2 Parts layout

A’

Stacker-Cover-Assy

Cover-Side-R

Cover-Side-L

Plate-Base-PCB

Plate-Assy-Base

Motor-Fan

Duplex

Rear-Cover-Assy

Fuser-Assy

OPE Cover-Assy

Guide-Paper-Duplex

GuidePaper-R

Manual-Assy

Front-Guide-Assy

CU board

Toner cartridge

Low voltage power board

High voltage power board

Paper cassette

Image drum cartridge

This section explains the main parts layout of the equipment.

MB460

Oki Data CONFIDENTIAL

44306601TH Rev. 2

Fig 4.2.1

62 /

MB470

A’

Stacker-Cover-Assy

Cover-Side-R

Cover-Side-L

Plate-Base-PCB

Plate-Assy-Base

Motor-Fan

Rear-Cover-Assy

Fuser-Assy

OPE Cover-Assy

Guide-Paper-Duplex

GuidePaper-R

Manual-Assy

Front-Guide-Assy

CU board

Toner cartridge

Low voltage power board

High voltage power board

Paper cassette

Image drum cartridge

Oki Data CONFIDENTIAL

44306601TH Rev. 2

Fig 4.2.2

63 /

MB480

A’

Stacker-Cover-Assy

Cover-Side-R

Cover-Side-L

Plate-Base-PCB

Plate-Assy-Base

Motor-Fan

Duplex

Rear-Cover-Assy

Fuser-Assy

OPE Cover-Assy

Guide-Paper-Duplex

GuidePaper-R

Manual-Assy

Front-Guide-Assy

CU board

Toner cartridge

Low voltage power board

High voltage power board

Paper cassette

Image drum cartridge

Oki Data CONFIDENTIAL

44306601TH Rev. 2

Fig 4.2.3

64 /

[Base unit]

Photo Interrupter

Roller-Pick-Up

Roller-Feed-Now

Guide-Cassette-L

Guide-Cassette-R

Plate-Base

Gear-Assy-Clutch

MB460/MB470

Oki Data CONFIDENTIAL

44306601TH Rev. 2

Fig 4.2.4

65 /

Photo Interrupter

Roller-Pick-Up

Roller-Feed-Now

Guide-Cassette-L (530sht)

Guide-Cassette-R (530sht)

Plate-Base

Gear-Assy-Clutch

[Base unit]

MB480

Oki Data CONFIDENTIAL

44306601TH Rev. 2

Fig 4.2.5

66 /

Oki Data CONFIDENTIAL

4.3 Parts replacement method

This section explains the replacement method of the parts and assemblies that are shown in the following disassembling diagram. The explaining diagram of parts replacement procedure is MB470.

Replace part after performing the following operation.

(1) Unplug the AC power cord from the main unit inlet by the disconnected status of power

switch.

(2) U

nplug the interface cable from the main unit.

44306601TH Rev. 2

67 /

4.3.1 Detachment methods of the scanner and printer

4.3.1.1 Cover-Side-R

(1) Lift the scanner. (2) Open the Rear-Cover-Assy. (3) Open the Stacker-Cover-Assy. (4) Take out the image drum cartridge. (5) Remove the screw (Black) (6) Installing is performed by the inverse procedure with removing.

(Note on removing / installing)

1. Beware of not to touch the DC motor inattentively (Do not rotate motor).

and the screw (Silver) . Remove the Cover-Side-R .

Oki Data CONFIDENTIAL

44306601TH Rev. 2

Fig 4.3.1

68 /

4.3.1.2 Cover-Side-L

Note! Attach the Label Motor-Fan on the outside that is obviously to be seen.

. Remove the Cover-Side-L .

Oki Data CONFIDENTIAL

44306601TH Rev. 2

Fig 4.3.2

69 /

4.3.1.3 FAX Board (In case of MB470/480 )

(1) Remove the Cover-Side-R . (Refer to 4.3.1.1 ) (2) Remove the two screws(silver) (3) Remove the cable connector (4) Remove the three screws(silver) (5) Remove the Board-FAX

(Note on removing / installing)

1. Beware of not to touch the DC motor inattentively (Do not rotate motor).

. Remove the Plate-Shield-Cover-FAX .

from the Board-FAX .

Oki Data CONFIDENTIAL

Note : When replacing the Board-FAX, make sure

that there is a marking on the connector.

44306601TH Rev. 2

Fig 4.3.3

70 /

Oki Data CONFIDENTIAL

MB460

MB470/MB480

4.3.1.4 Detachment methods of the scanner and printer

(1) Remove the Cover-Side-R and the Cover-Side-L. (Refer to 4.3.1.1/ 4.3.1.2) (2) Remove the Plate-Shield-Cover-Fax and cable. (Refer to 4.3.1.3 ) (In case of MB470/MB480 ) (3) Remove the screw(silver)

case of MB470/MB480 ) (4) Remove the screw(silver) (5) Remove the six screws(silver)

. Remove the Plate-Shield-Base-FAX(with Board-FAX) . (In

. Remove the Cable-clamp . (In case of MB460 )

. Remove the Plate-Shield-Cover-CU .

44306601TH Rev. 2

Fig 4.3.4

71 /

(6) Remove the Scanner-cable connector from the Board-CU. (7) Remove the four screws(silver)

so as not to allow the scanner to tilt back).

.(hold the front side of the stay on each side of the printer

Oki Data CONFIDENTIAL

Fig 4.3.5

(8) Put the scanner back in its original horizontal position. (9) By holding the scanner by the right and left stays and vertically lifting it up, separate the

scanner from the printer.

44306601TH Rev. 2

Fig 4.3.6

72 /

Oki Data CONFIDENTIAL

Lever

ADF top cover

Frame Assy

4.3.2 Scanner

4.3.2.1 Detachment of the paper tray

(1) Gently open the ADF top cover. (2) Turn the lever in the direction of the arrow to put the frame assembly and the paper tray

upright. (3)

Remove the two screws(black)

, and then the paper tray .

44306601TH Rev. 2

Fig 4.3.7

73 /

Oki Data CONFIDENTIAL

Driver

4.3.2.2 Detachment of Pad

(1) Open the ADF top cover. (Refer to 4.3.2.1 ) (2) As in the ﬁgure under, insert the tip of the small minus driver softly to the dent of the pad

case. By this operation, the inner hooks of pad is removed in direction of the arrow (A).

Note: I

(3) Push another side of pad forward in direction of the arrow (B) with the tool inserted.

n order to cause damage to the surface of roller, please take attention to use the

ol when this operation.

Fig 4.3.8

(4) Exchange to the new pad in the direction of the arrow.

44306601TH Rev. 2

Fig 4.3.9

Fig 4.3.10

74 /

4.3.2.3 Removing ADF PCBA

ADF top Cover

Lever

(1) Gently open the ADF top cover. (2) Remove the two screws(black) (3) Remove the two screws(black) (4) Turn the lever in the direction of the arrow to put the frame Assembly

upright. (5) Remove the two screws(black) (6) Restore the frame Assembly (7) Release the frame Assembly

scanner to remove the Assembly and the paper tray . (8) Remove the three screws(black) (9) Unplug all the connectors and remove the ADF PCBA

to remove the cover-gear . .

and the paper tray in their original positions.

from the hook near its supporting point on each side of the

to remove the ground plate , and .

Oki Data CONFIDENTIAL

and the paper tray

44306601TH Rev. 2

Fig 4.3.11

75 /

Oki Data CONFIDENTIAL

Finger nail placed

FFC cable of the LCD

FFC cable

Finger nail placed

Seven hooks

(A)

4.3.2.4 Removing operation panel

(1) By putting nails of each hand in the space at the portion of the ﬁt between the operation

panel Assembly and the ﬂatbed on the side of the hand, disengage from the scanner the

four upper hooks on the operation panel Assembly in direction of the arrow (A). (2) Pull the FFC cable straight out of the connector on the back of the operation panel.

Note: Be careful not to remove or insert the FFC cable at an angle from the connector on

the back of the operation panel Assembly their terminals are damaged.

Removing operation panel PCBA

(1) Pull the FFC cable out of the LCD straight in the direction of the arrow. (2) Remove the two screws(black) (3) Remove the three screws (black)

Note: Removing or inserting the FFC cable at an angle from the connector on the back of

the operation panel Assembly damages their terminals.

. Remove the Panel-Cover-Frame .

.Remove the operation panel PCBA .

44306601TH Rev. 2

Fig 4.3.12

76 /

4.3.2.5 Removing the MPCBA

Stay_L

Contacting

Relationship between Projection and Side

Projection (on each shield metal plate)

(1) Turn the scanner unit upside down. (2) Pull up the stays L and R at the same time until they stop. (3) Remove the six screws (black) (4) Remove the shield-USB (5) Remove the four screws (black, with washers) (6) Disconnect all the connectors and remove the MPCBA board

Note: Be sure to slowly move the both stays L and R at the same time. If moved separately,

they may be broken.

To re

Pay

Hoo

assemble shield metal plates, position the shield metal plates in a manner so that every projection of each of the shield metal plates contacts the outside surface of the mating part. (See the illustration below.)

ing attention to the ﬁxing position of the core. (See the photo at the bottom of the

next page.)

k the bent end of the shield-USB the direction of the arrow to reassemble it. (See the photo at the top left of the next page.)

and remove the MPCBA-cover .

by turning it in the direction of the arrow.

and remove the top shield Assembly .

into the top shield Assembly and turn it in

Oki Data CONFIDENTIAL

44306601TH Rev. 2

Fig 4.3.13

77 /

Insert the bent end into the square

Oki Data CONFIDENTIAL

FG cable (ﬁxed together)

Shield-USB &FG cable

FG cable (ﬁxed together)

Two FG cables

Fig 4.3.14 Fig 4.3.15

To the scanning sensor

To the operation panel

To the printer (USB)

44306601TH Rev. 2

Core

Fig 4.3.16

To the FB motor

There is no fan

To ADF

78 /

4.3.2.6 Removing ADF Assembly

(Long type)

Lower

ADF connector

(1) Remove the two screws(black) to remove the base stopper upward at an angle.

Oki Data CONFIDENTIAL

Note: Unlike the other screws used in the printer, the screws

Fig 4.3.17

(2) Reverse the scanner and put the stays L and R upright. (3) Remove the six screws(black) (4) Remove the ADF connector.

and then the MPCBA cover .

are long.

44306601TH Rev. 2

Fig 4.3.18

79 /

Oki Data CONFIDENTIAL

Tweezers

Cross-Secton

(5) Unthread the cable through its guide groove. (6) Turn over the scanner again and open the document cover (the ADF assembly 5). (7) Slightly lift the ADF assembly

by inserting closed curved-tip tweezers and, in the direction of the arrow, lightly pressing the tweezers. Lift and remove the ADF assembly .

. As illustrated, unlock each hinge of the ADF assembly

Note: For the structure of each hinge joint of the ADF assembly

view shown below.

Fig 4.3.19

(8) Turn the ADF Assembly upside down. (9) Remove the six screws(black)

and then the hinge Assembly .

, see the cross-section

44306601TH Rev. 2

Fig 4.3.20

80 /

4.3.2.7 Removing the Window-ADF

Document cover

Sheet

(1) Gently open the document cover. (2) Flip the sheet and remove ﬁve screws (black) (3) Remove the Window-ADF

Note: Be careful not to crease the sheet.

Oki Data CONFIDENTIAL

Be c When replacing the Window-ADF

areful not to damage the glass surface with tools.

protective ﬁlm from the new Window-ADF to attach.

with a new Window-ADF , remove the white

44306601TH Rev. 2

Fig 4.3.21

81 /

Oki Data CONFIDENTIAL

Stacker-Cover-Assy

Cable

Hook B

Hook A

SLA (Selfoc Lens Array)

4.3.3 Printer

4.3.3.1 LED Head

(1) Lift the scanner. (2) Open the Stacker-Cover-Assy. (3) Remove the Holder-Head (4) Firstly open Hook A by narrow direction and then remove it. Secondly remove Hook B then

remove LED Assy (5) Remove cable from the connector of LED Assy (6) Installing is performed by the reverse procedure with removing.

Note! Beware of not to touch or press the SLA parts of LED Head directly.

. (At this moment, the two springs can be also removed jointly.)

44306601TH Rev. 2

Fig 4.3.22

82 /

Stacker-Cover-Assy

Latch

②

4.3.3.2 Roller-Transfer

(1) Lift the scanner. (2) Open the Stack-Cover –Assy (3) Remove latches in the 2 places of Gear-TR

not add any unnecessary pressure while removing the latch.) (4) Slightly slide the Roller-transfer

from the contact of Frame-Assy-Lower. Remove the latches on the 2 places of Gearing-TR

of Gear. (5) Hold the Bearing-TR

moment, Gear-TR is also removed.) (6) Installing is performed by the inverse procedure with removing.

(Note on removing / installing)

eware of not to touch the DC motor inattentively (Do not rotate motor).

1. B

2. While installing, pay attention to the up-and-down direction of Bearing-TR

3. Operating carefully, not to touch Roller-Transfer

on the both side, and then lift up the Roller-Transfer . (At this

to the right side and remove the post on the top of gear

and Bearing-TR on the conversing side. (Do

surface.

Oki Data CONFIDENTIAL

44306601TH Rev. 2

Fig 4.3.23

83 /

Oki Data CONFIDENTIAL

PNLUSB

HEAD

LAN

USB

CENT

19 36

NICSW

20 19

110

FAXIF

86M-

1 10

2 12 1

2NDTRAY

HVIF

RAMDIMM

SON

EXRCO

THERM

RCLT HCLT MCLT

IC6

13941

199

24042

200

Connector for Clutch(MPT)

Connector for Scanner

Connector for LED HEAD

Connector for High voltage power board

Connector for Low voltage power board

Connector for FAX

Connector for DC Motor

Connector for 2nd Tray

Connector for Clutch(Regist) Connector for Clutch(Hopping)

4.3.3.3 CU Board

(1) Remove the Cover-Side-R. (Refer to 4.3.1.1) (2) Remove the Plate-shield-Cover-FAX(Refer to 4.3.1.3 ) (In case of MB470/480 ) (3) Remove the Plate-Shield-Base-FAX(with Board-FAX).(Refer to 4.3.1.4 (3)) (In case of

MB470/480 )

Remove the Cable-clamp . (Refer to 4.3.1.4(4)) (In case of MB460 )

(4) (5) Remove the Plate-Shield-Cover-CU.(Refer to 4.3.1.4(5)) (6) Remove the all cable connector. (7) Remove the two screws (Silver) (8) Installing is performed by the inverse procedure with removing.

(Note on removing / installing)

1. Beware of not to touch the DC motor inattentively (Do not rotate motor).

2. Beware of not to tuck down the cable while installing the Plate-Cover-Shield-CU .

,two screws (Silver) . Remove the CU board .

44306601TH Rev. 2

Fig 4.3.24

Fig 4.3.25

84 /

Oki Data CONFIDENTIAL

Claw B

Claw A

4.3.3.4 OP Cover Assy

(1) Lift the scanner. (2) Open the Rear-Cover-Assy. (3) Open the Stacker-Cover-Assy. (4) Remove the Cover-Side-R and the Cover-Side-L. (Refer to 4.3.1.1 / 4.3.1.2) (5) Open the Cover-Assy-MPT. (6) Pull Claw A by the arrow direction. Remove the clamp by pushing Claw B as the arrow direction.

Remove the OPE Cover Assy (7) Installing is performed by the reverse procedure with removing.

(Note on removing / installing)

1. Beware of not to touch the DC motor inattentively (Do not rotate motor).

44306601TH Rev. 2

Fig 4.3.26

85 /

Oki Data CONFIDENTIAL

Driver

Pay attention not to let Separating- Pad- Assy pop out to your front side while installing MPT-Assy.

Frame-Assy-Lower

4.3.3.5 MPT-Assy (In case of MB460, it is Manual-Assy)

Lock (7) Remove the 2 screws (Black) (8) Open the Frame-Assy-Lower by arrow B direction, and then remove Lever-Lock-Top (9) Holding up MPT-Assy (10) Installing is performed by the inverse procedure with removing.

(Manual-Assy ) and remove it.

Note! While removing the Lever-Lock-Top

between the Frame-Assy-Lower and Lever-Lock-Top and press the driver by Arrow C direction.

(Note on removing / installing)

1. Beware of not to touch the DC motor inattentively (Do not rotate motor).

, it is easy to remove it by inserting the driver

Fig 4.3.27

44306601TH Rev. 2

86 /

Oki Data CONFIDENTIAL

4.3.3.6 Front-Guide-Assy

(1) Lift the scanner. (2) Open Rear-Cover-Assy. (3) Open Stacker-Cover-Assy. (4) Remove Cover-Side-R and Cover-Side-L. (Refer to 3.3.3/3.3.4) (5) Remove OPE Cover-Assy. (Refer to 3.3.7) (6) Remove MPT-Assy. (Refer to 3.3.9) (7) Remove the clamp of claw by pushing by arrow direction, and then remove Cover-Paper-R (8) Remove the 2 screws (Black) (9) Installing is performed by the inverse procedure with removing.

(Note on removing / installing)

eware of not to touch the DC motor inattentively (Do not rotate motor).

1. B

. Remove Front-Guide-Assy .

44306601TH Rev. 2

Fig 4.3.28

87 /

4.3.3.7 Roller-Assy-Feed

(1) Lift the scanner. (2) Open Rear-Cover-Assy. (3) Open Stacker-Cover-Assy. (4) Remove Cover-Side-R and Cover-Side-L. (Refer to 3.3.3/3.3.4) (5) Remove OPE Cover-Assy. (Refer to 3.3.7) (6) Remove MPT-Assy. (Refer to 3.3.9) (7) Remove Guide-Assy-Front. (Refer to 3.3.10) (8) Remove Roller-Assy-Feed (9) Installing is performed by the inverse procedure with removing.

(Note on removing / installing)

eware of not to touch the DC motor inattentively (Do not rotate motor).

1. B

by arrow direction.

Oki Data CONFIDENTIAL

44306601TH Rev. 2

Fig 4.3.29

88 /

4.3.3.8 Guide-Paper-Duplex

(1) Lift the scanner. (2) Open the Rear-Cover-Assy. (3) Open the Stacker-Cover-Assy. (4) Remove Cover-Side-R and Cover-Side-L. (Refer to 3.3.3/3.3.4) (5) Remove OPE Cover-Assy. (Refer to 3.3.7) (6) Remove MPT-Assy. (Refer to 3.3.9) (7) Remove Front-Guide-Assy. (Refer to 3.3.10) (8) Remove Roller-Assy-Feed. (Refer to 3.3.11) (9) Remove Duplex-Assy. (10) Remove the 2 screws (Black) (11) Installing is performed by the reverse procedure with removing.

(Note on removing / installing)

eware of not to touch the DC motor inattentively (Do not rotate motor).

1. B

. Remove Guide-Paper-Duplex .

Oki Data CONFIDENTIAL

44306601TH Rev. 2

Fig 4.3.30

89 /

4.3.3.9 Stacker-Cover-Assy

Claw A

Claw B

(1) Detachment methods of the scanner and printer ( Refer to 4.3.1.4 ) (2) Remove the clamp by pushing claw A as the arrow direction . Pull the Cover-Blank-L

upward remove it. (3) Remove the clamp by pushing claw B as the arrow direction . Pull the Cover-Blank-R

upward remove it. (4) Remove the LED cable from the CU board. (5) Remove the screw(Silver) (6) Open the Stacker-Cover-Assy

from the supporting point of Frame-Assy-Lower. (7) Installing is performed by the reverse procedure with removing.

(Note on removing / installing)

1. Beware of not to touch the DC motor inattentively (Do not rotate motor).

by the arrow direction and remove Stacker-Cover-Assy

Oki Data CONFIDENTIAL

44306601TH Rev. 2

Fig 4.3.31

90 /

4.3.3.10 Motor-DC-Main

Piece-Guide

(1) Detachment methods of the scanner and printer ( Refer to 4.3.1.4 ) (2) Remove Stacker-Cover-Assy. (Refer to 4.3.3.9) (3) Remove the three screws(black) (4) Remove the connector (5) Remove the three screws (Silver) (6) Remove the Motor-DC-Main (7) Installing procedure is performed by the opposite order with removing.

(Note on removing / installing)

1. Beware of not to touch the DC motor inattentively (Do not rotate motor).

of Motor-DC-Main from the CU board.

and the two screws(silver) . Remove the Plate-Stay-R .

and the screw (Black) .

. Unthread the cable from the Piece-Guide .

Oki Data CONFIDENTIAL

44306601TH Rev. 2

Fig 4.3.32

91 /

4.3.3.11 Fuser-Assy

Note! Replace the Fuser-Assy by Assy unit. It is forbidden for disassembling the Fuser-Assy, also, reusing the disassembled Fuser-Assy.

(1) Detachment methods of the scanner and printer.( Refer to 4.3.1.4 ) (2) Remove Stacker-Cover-Assy. (Refer to 4.3.3.9) (3) Unplug connector (Motor-Fan) (4) Remove the three screws(black) (5) Remove Motor-Fan (6) Unplug the connector

. Remove Piece-Guide .

of Fuser-Assy, which is at the back side of Piece-Guide .

(7) Remove the four screws (Silver)

left side. (8) Installing is performed by the inverse procedure with removing.

and connector (thermistor) from high voltage power board .

. Remove the Plate-Stay-L .

. Remove the Fuser-Assy by bowing down the lock at the

Oki Data CONFIDENTIAL

Note! Fuser-Assy

may be really hot, beware of handling.

(Note on removing / installing)

nstall the screw (Silver)

1. I

2. Do not add excessive pressure while tightening the screw (Silver)

in its original groove. (Do not make new screw tap.)

3. Beware of not to touch the DC motor inattentively (Do not rotate the motor).

4. Install the Motor-Fan

by combining the arrow indicating Fan ﬂowing direction and

the arrow direction that is incused on the Fan-Lower.

5. Beware of not to deform the thermistor while replacing the Fuser-Assy.

6. While removing or installing FAN, do not press impeller of the FAN as shown by the following photo. In case of the impeller unfastened by mistake, do not reuse it and install a new FAN.

Impera

44306601TH Rev. 2

Fig 4.3.33

92 /

Connector for Thermistor

Connector for FAN

Thermistor

Oki Data CONFIDENTIAL

Fig 4.3.34

Fig 4.3.35

44306601TH Rev. 2

93 /

4.3.3.12 Rear-Cover-Assy

(1) Lift the scanner. (2) Open the Rear-Cover-Assy. (3) Open the Stacker-Cover-Assy. (4) Remove the Cover-Side-R and the Cover-Side-L. (Refer to 4.3.1.1/ 4.3.1.2) (5) Remove Cover-Face Up-A

point part of Rear-Cover-Assy. (6) Remove the two screws (Black) (7) Remove Solenoid

Because the plunger is not ﬁxed, beware of not to drop or lose it. (8) Remove Rear-Cover-Assy

to the inner side. (9) Installing is performed by the inverse procedure with removing.

(Note on removing / installing)

1. B

eware of not to touch the DC motor inattentively (Do not rotate motor).

2. About the installing of Rear-Cover-Assy supporting point part to a bowed situation and then perform installing.

from Rear-Cover-Assy .

from the supporting point with opening the right side supporting

. Remove Plate-Solenoid .

by bowing down the supporting point part of Rear-Cover-Assy

, remove Cover-Face Up-A , make the

Oki Data CONFIDENTIAL

44306601TH Rev. 2

Fig 4.3.36

94 /

Oki Data CONFIDENTIAL

Plate-Bracket-Motor

Supporting point

4.3.3.13 Frame-Assy-Lower

(1) Detachment methods of the scanner and printer. ( Refer to 4.3.1.4 ) (2) Remove CU Board. (Refer to 4.3.3.3) (3) Remove OP Cover-Assy. (Refer 4.3.3.4) (4) Remove MPT-Assy. (Refer to 4.3.3.5) (5) Remove Front-Guide-Assy. (Refer to 4.3.3.6) (6) Remove Roller-Assy-Feed. (Refer to 4.3.3.7) (7) Remove Guide-Paper-Duplex. (Refer to 4.3.3.8) (8) Remove Stacker-Cover-Assy. (Refer to 4.3.3.9) (9) Remove Motor-DC-Main. (Refer to 4.3.3.10) (10) Remove the two screws (Silver) (11) Pass the connector of Low Voltage Power Board through the Portion A of Plate-Bracket-Motor

from above to the downward.

(12

) Remove Fuser-Assy. (Refer to 4.3.3.11) (13) Remove Rear-Cover-Assy. (Refer to 4.3.3.12) (14) Remove all the cable from Hook A of Holder-SNS, extend them and put on the right front side

of the printer.

(15

) Remove connector B from high voltage power board. (16) Remove the four long screws (17) Remove Hook C and Hook D of Plate-Base-PCB using minus driver. (18) Remove Frame-Assy-Lower (19) Installing is performed by the inverse procedure with removing.

and the screw (Black) . Remove Plate-Shield-CU .

(Silver) , the four screws (Black) , the short screw (Silver) .

(Note on removing / installing)

1. B

eware of not to touch the DC motor inattentively (Do not rotate motor).

2. While installing Frame-Assy-Lower Cable- between Frame-Assy-Lower and Plate-Base-PCB.

, beware of not to tuck Cable- , Cable- and

44306601TH Rev. 2

Fig 4.3.37

95 /

Oki Data CONFIDENTIAL

Hook Ⓐ

Hook Ⓓ

Cable Ⓔ

Cable Ⓕ

Connector Ⓑ

Attention to wire interwining

High voltage power board

Plate-Base-PCB

Hook Ⓒ

Cable G

Hook C

Fig 4.3.38

Hook D

Fig 4.3.39 Fig 4.3.40

44306601TH Rev. 2

96 /

Oki Data CONFIDENTIAL

Warning

Short plug connector

100/120V Printer : Installation 230V Printer : De-installation rejection

Guide-Cassette-L

Plate-Base-PCB

PCB-Assy

Earth wire

4.3.3.14 High voltage / Low voltage power board

Risk of Electric Shock

There is a risk of electric shock during replacement of the low voltage power supply. Use insulating gloves or avoid direct contact with any conducting part of the power supply, and caution should be

exercised during replacement. The capacitor may take one minute to complete discharge after the AC cord is unplugged. Also, there is a

possibility that the capacitor doesn’t discharge because of a breakage of the PCB, etc., so remember the possibility of electric shock to avoid electric shock.

(1) Detachment methods of the scanner and printer ( Refer to 4.3.1.4 ) (2) Remove the Frame-Assy-Lower ( Refer to 4.3.3.13 ) (3) Remove the big screw (Silver) (4) Remove the AC socket

and power switch . Remove Guide-Cassette-L. (5) Remove the three small screws (Silver) (6) Remove the four small screws (Silver) (7) Installing is performed by the inverse procedure with removing.

(Note on removing / installing)

eware of not to touch the DC motor inattentively (Do not rotate motor).

1. B

2. Do not apply excessive pressure to the power switch

3. While installing High voltage / Low voltage power board to the Plate-Base-PCB, do not deform the Plate-Base-PCB.

See Fig 4.3.42-47 for the routing of the FFC for the high-voltage board, and Fig 4.3.42-47

or folding the FFC.

. Remove the earth wire.

. Remove Low voltage power board .

. Remove High voltage power board .

Fig 4.3.41

44306601TH Rev. 2

97 /

High-voltage Board FFC Folding

Oki Data CONFIDENTIAL

(1) FFC folded inward (text side in) 73 mm

from end of high-voltage board.

73mm

25mm

(2) Folded back 25 mm from ﬁrst fold

described in (1).

Fig 4.3.42 Fig 4.3.43

(3) Inner (upper right) end point folded

inward, diagonally at 45° angle outward to outer edge, to form corner 30 mm from second fold

13mm

(4) Diagonal (45°) edge folded inw

mm of way to form new corner 13 mm from corner described in (3) (to form about 10-mm wide shape)

30mm

25mm

ard 20

10mm

30mm

13mm

75mm

Fig 4.3.44 Fig 4.3.45

Fig 4.3.46 Fig 4.3.47

44306601TH Rev. 2

98 /

4.3.3.15 Plate-Bracket-Motor

Frame-Assy-Lower

Gear-Idle-Drum-Z27-82

Gear-Idle-Drum-Z24-48

(1) Detachment methods of the scanner and printer ( Refer to 4.3.1.4 ) (2) Remove the Frame-Assy-Lower ( Refer to 4.3.3.13 ) (3) Assemble Frame-Assy-Lower as the diagram. (4) Remove the four screws (Black) (5) Installing is performed by the inverse procedure with removing.

(Note on removing / installing)

1. B

eware of not to touch the DC motor inattentively (Do not rotate motor).

2. While installing beware of not to tuck Cable between Frame-Assy-Lower and PlateBracket-Motor.

eware of not to drop the gear or scratch the surface of gear.

3. B

4. Because Gear-Idle-Drum-Z24-48 and Gear-Idle-Drum-Z27-82 are high precision gear, beware of handling them with particular care.

. Remove Plate-Bracket-Motor .

Oki Data CONFIDENTIAL

44306601TH Rev. 2

Fig 4.3.48

99 /

4.3.3.16 Roller-Back up

View A

Contact

(1) Detachment methods of the scanner and printer. ( Refer to 4.3.1.4 ) (2) Remove the Frame-Assy-Lower. ( Refer to 4.3.3.13 ) (3) Remove the Plate-Bracket-Motor. (Refer to 4.3.3.15) (4) Remove the screw (Black) (5) Remove Lever-Reset-R (6) Lift up Roller-Back up

up) , Bearing-Ball , and Washer-C are also removed.)

(7) Remove the collar

(Note on removing / installing)

eware of not to touch the DC motor inattentively (Do not rotate motor).

1. B

2. While installing Washer-C (Refer to View A)

that are attached on both tops of the shaft of Roller-Back up .

. Remove the collar and Lever-Reset-L .

and remove it. (At this moment, two of Holder-BU , Spring-Bias (Back

, conﬁrm it existing between contact and Holder-BU .

Oki Data CONFIDENTIAL

Fig 4.3.49

44306601TH Rev. 2

100 /

OKI MB460, MB470, MB480 Schematic

Specifications and Main Features

Frequently Asked Questions

User Manual