Lexmark OptraImage 443 User manual

Brand: Lexmark

Model: OptraImage 443

Type: User manual

OptraImage 443

Service Manual

Doc. No. 253-0017-01 Rev. 1.01

Lexmark International, Inc.

Lexmark Internal Use Only

Table of Contents

Table of ContentsTable of Contents

Table of Contents

1.1.

1. OVERVIEW

OVERVIEW OVERVIEW

OVERVIEW

.......................................................................................................................................................... 1-1

1.1 G

ENERAL NOTES FOR SERVICING

.......................................................................................................................... 1-1

1.2 G

ENERAL

RODUCT

ESCRIPTION

......................................................................................................................... 1-2

1.3 P

RODUCT

EATURES

........................................................................................................................................ 1-2

1.4 P

RODUCT

PECIFICATIONS

.................................................................................................................................. 1-3

1.5 D

EVICE

ONFIGURATION

..................................................................................................................................... 1-4

1.5.1 Outer View.................................................................................................................................... 1-5

1.5.2 Mechanical Configuration............................................................................................................ 1-6

1.5.3 Wiring Configuration.................................................................................................................... 1-8

1.6 T

HEORY OF

PERATION

............................................................................................................................. 1-9

1.6.1 Introduction ................................................................................................................................... 1-9

1.6.2 Mechanical Section Operation....................................................................................................... 1-9

1.6.2.1 Scanning module drive..................................................................................................................... 1-9

1.6.2.2 ADF mechanism operation............................................................................................................... 1-9

1.6.3 System Description....................................................................................................................... 1-10

1.6.3.1 System Diagram

......................................................................................................................... 1-10

1.6.3.2 SCSI interface:

........................................................................................................................... 1-12

1.6.3.3 Video circuit:

.............................................................................................................................. 1-12

1.6.3.4 Sensor input

................................................................................................................................1-15

2.2.

2. INSTALLATION

INSTALLATIONINSTALLATION

INSTALLATION

..................................................................................................................................................... 2-1

2.1 P

RECAUTIONS OF

NSTALLATION

.......................................................................................................................... 2-1

2.2 U

NPACKING

ROCEDURE

.................................................................................................................................... 2-1

2.3 U

NLOCKING

OUR

CANNER

............................................................................................................................... 2-3

2.4 C

ABLE

ONNECTION

.......................................................................................................................................... 2-4

2.4.1 Power Cable Connection............................................................................................................... 2-4

2.4.2 SCSI Signal Connection................................................................................................................ 2-5

2.4.2.1 SCSI Cable Connection

.............................................................................................................. 2-5

2.5 SCSI ID S

ETTING

........................................................................................................................................... 2-7

2.6 SCSI T

ERMINATOR

.................................................................................................................................... 2-8

3.3.

3. PROBLEM SOLVING

PROBLEM SOLVINGPROBLEM SOLVING

PROBLEM SOLVING

............................................................................................................................................... 3-1

3.1 D

IAGNOSTICS

............................................................................................................................................. 3-1

3.1.1 Diagnostic Flowcharts................................................................................................................... 3-1

3.1.1.1 Group 1 Error Flowchart (Lamp Assembly)..................................................................................... 3-2

3.1.1.2 Group 2 Error Flowchart (Flatbed) .................................................................................................. 3-2

3.1.1.3 Troubleshooting flowchart: power on to scanner ready.

........................................................ 3-3

3.1.1.4 Troubleshooting flowchart: online flatbed operation

............................................................. 3-4

3.1.1.5 Troubleshooting flowchart: online ADF operation

................................................................. 3-5

3.1.1.6 Troubleshooting flowchart: Offline flatbed operation

............................................................ 3-6

3.1.1.7 The Power LED does not go on

................................................................................................. 3-7

3.1.1.8 Scan module does not move to lock position

........................................................................... 3-8

3.1.1.9 Scan module does not move to the home position

.................................................................. 3-9

3.1.1.10 Ready and Power LED does not light on

............................................................................. 3-10

3.1.1.11 Scan module does not move to the flatbed position

........................................................... 3-11

3.1.1.12 Reading is not performed

....................................................................................................... 3-12

3.1.1.13 Image does not appear

............................................................................................................ 3-12

3.1.1.14 Large jitter

................................................................................................................................3-13

3.1.1.15 Reading position deviation

..................................................................................................... 3-14

3.1.1.16 Image unclear

........................................................................................................................... 3-14

3.1.1.17 Strange Sound Generated (flatbed)

....................................................................................... 3-15

3.1.1.18 Frequent paper jam

.................................................................................................................. 3-15

3.1.1.19 Frequent double feed and skew

............................................................................................. 3-16

iii

3.1.1.20 Strange sound generated (ADF)

............................................................................................ 3-16

4. MAINTENANCE............................................................................................................................................. 4-1

4.1 C

LEANING

.................................................................................................................................................. 4-1

4.1.1 Cover and Glass............................................................................................................................. 4-1

4.1.2 ADF unit ........................................................................................................................................ 4-2

4.2 M

AINTENANCE

OOLS

............................................................................................................................... 4-3

4.3 R

EPLACEMENT

OMPONENTS

UTER

IEW

............................................................................................... 4-3

4.3.1 Main Control PCBA....................................................................................................................... 4-3

4.3.2 Optical chassis unit........................................................................................................................ 4-4

4.3.3 Lamp Inverter circuit..................................................................................................................... 4-5

4.3.4 Lamp (Flatbed) .............................................................................................................................. 4-6

4.3.5 Motor unit (Flatbed) ...................................................................................................................... 4-7

4.3.6 Belt (Flatbed)................................................................................................................................. 4-8

4.3.7 ADF unit ........................................................................................................................................ 4-9

4.3.8 Control Panel PCBA...................................................................................................................... 4-9

4.3.9 Parts That Must Not Be Disassembled......................................................................................... 4-10

4.3.9.1 CCD Board Screws........................................................................................................................ 4-10

4.4 S

PARE

ARTS

EPLACEMENT

................................................................................................................... 4-11

4.4.1 Notes on Replacement.................................................................................................................. 4-11

4.4.2 ADF Snap-in Pad Module Removal and Mounting..................................................................... 4-11

4.4.3 Document Cover Removal ........................................................................................................... 4-12

4.4.4 ADF Cover Removal & Mounting................................................................................................ 4-13

4.4.5 ADF Optical Chassis Removal..................................................................................................... 4-14

4.4.6 ADF Unit Removal....................................................................................................................... 4-15

4.4.7 ADF Inverter Removal................................................................................................................. 4-16

4.4.8 ADF Lamp Removal..................................................................................................................... 4-17

4.4.9 Upper Housing Removal.............................................................................................................. 4-18

4.4.10 Flatbed Optical Chassis Removal.............................................................................................. 4-19

4.4.11 Flatbed Lamp Removal.............................................................................................................. 4-20

4.4.12 Flatbed CCFL Inverter PCBA Replacement.............................................................................. 4-21

4.4.13 Motor (Flatbed) Removal........................................................................................................... 4-22

4.4.14 The Control Panel PCBA Removal............................................................................................ 4-23

4.4.15 Main Control PCBA Replacement............................................................................................. 4-24

4.4.16 LED & Sensor PCBA Replacement............................................................................................ 4-25

4.5 PCBA V

OLTAGE

EST

............................................................................................................................. 4-26

4.5.1 Check power supply output voltage............................................................................................. 4-26

4.5.2 Main control PCBA input power (+5V) failure check................................................................. 4-26

4.5.3 LED display PCBA check ............................................................................................................ 4-26

4.6 L

UBRICATION

................................................................................................................................................ 4-28

4.6.1 Mechanical unit lubrication......................................................................................................... 4-28

5. PARTS .............................................................................................................................................................. 5-1

5.1 S

PARE

ARTS AND

AFR............................................................................. E

RROR

! B

OOKMARK NOT DEFINED

6. LABEL AND SCREWS................................................................................................................................... 6-1

6.1 O

PTRA

MAGE

443

ABEL

LACEMENT

.................................................................................................................. 6-1

6.2 S

CREW

LASSIFICATION

.................................................................................................................................... 6-2

1-1

1.1.

1. Overview

Overview Overview

Overview

1.1

1.11.1

1.1 General Notes for Servicing

General Notes for ServicingGeneral Notes for Servicing

General Notes for Servicing

1.2

1.21.2

1.2 Product Description

Product DescriptionProduct Description

Product Description

1.3

1.31.3

1.3 Product specification

Product specificationProduct specification

Product specifications

1.4

1.41.4

1.4 Device Configuration

Device ConfigurationDevice Configuration

Device Configuration

1.5

1.51.5

1.5 Theory of Operation

Theory of OperationTheory of Operation

Theory of Operation

This manual is intended to be used by the maintenance engineers. It describes the areas to be maintained, the

installation, the disassembly, and the main trouble shooting guides.

Please take your time to read this manual thoroughly to obtain comprehensive knowledge about the OptraImage 443

before serving the unit.

1.1

1.11.1

1.1 General notes for servicing

General notes for servicingGeneral notes for servicing

General notes for servicing

(1) Before trying to disassemble the OptraImage 443, make sure the power supply cord of the OptraImage 443

is disconnected from the power outlet. Under any circumstance, do not remove or install the connectors on

the OptraImage 443 with the power supply turned ON.

(2) Use caution not to drop small parts or screws inside the unit when disassembling and reassembling. If left

inside, they might cause the malfunction of the unit.

(3) Do not pull the connector cable when disconnecting it. Hold the connector.

(4) When carrying the scanning head unit, put it in an anti-static bag.

(5) Keep the document table glass surface always clean. If contaminated, use a dry clean cloth for cleaning.

(6) Use caution not to injure your fingers or hands when disassembling or reassembling the unit.

Lexmark Internal Use Only

1-2

1.2

1.21.2

1.2 General Product Description

General Product DescriptionGeneral Product Description

General Product Description

OptraImage 443 is a multifunction solution that offers integrated print, copy, fax and color network-scanning

capabilities for increased small workgroup productivity. The OptraImage 443 is easy to use and provides low-cost

access to key office functions, including fax from workstation, network color copying, scanning, and electronic

document routing.

You can hand your document over to OptraImage 443, and in a few steps, OptraImage 443 scans it to the network

and delivers it wherever, to whomever you want. With OptraImage 443, inefficient steps to the mailroom, copier, fax

machine and to your workstation are a thing of the past.

1.3

1.31.3

1.3 Product Features

Product Features Product Features

Product Features

• Ease of Use

Ease of UseEase of Use

Ease of Use

The control panel on the front of OptraImage 443 looks like a panel on a regular copier with the standard

phone keys added. The operating steps follow the same procedure as that of a regular copier or fax machine.

• A Digital Copier and a Full-function Fax Machine

A Digital Copier and a Full-function Fax MachineA Digital Copier and a Full-function Fax Machine

A Digital Copier and a Full-function Fax Machine

When OptraImage 443 is connected to a Lexmark printer, it is able to perform convenient digital copying. When

OptraImage 443 is connected to telephone line, it is able to perform a full fax function - to send and to

receive faxes.

• Network Scanning

Network ScanningNetwork Scanning

Network Scanning

The OptraImage 443 employs two Color Charged-Coupled Devices (CCD) as the scanning method. Through a

network port at the rear of the OptraImage 443, the product is able to perform network scanning.

• Duplex Scanning through the Auto Document Feeder (ADF)

Duplex Scanning through the Auto Document Feeder (ADF)Duplex Scanning through the Auto Document Feeder (ADF)

Duplex Scanning through the Auto Document Feeder (ADF)

To increase workgroup productivity, the OptraImage 443 is featured with the advance duplex scanning

capability. The scan speed reaches to 20 PPM at 300 dpi resolution while the auto document feeder can hold

up to 50 pages of document at one time.

1-3

1.4

1.41.4

1.4 Product Specifications

Product SpecificationsProduct Specifications

Product Specifications

The OptraImage 443 is designed to meet the following product specifications:

Scanner:

Scanner:Scanner:

Scanner:

Scanner Type Flatbed Scanner with ADF build in

Optical Resolution Flatbed: 300x600 dpi

ADF: 300x300 dpi

Enhanced Resolution 9600x9600 dpi

Scan Speed 10 PPM at 300dpi color for single page scanning

20 PPM at 300dpi Line-art, duplex for ADF

Scan Method Color Charged-Coupled Device (CCD)

Light Source Cold Cathode Fluorescent Lamp (CCFL)

CPU Arm 7 KS32C41000

Scan Area Max. 8.5"x 14.0" (Legal size) for ADF

Max. A4/Letter for Flatbed

Display 16-character x 2 LCD

Image Types 42-bit color(internal)

14-bit gray(internal)

1-bit Line-art, Dither, Error Diffusion

1-bit CMYK in Dither or Error Diffusion

PC Interface SCSI

Copier:

Copier:Copier:

Copier:

Scan Type By Flatbed or ADF

Scan Resolution Flatbed: 300x600 dpi

ADF: 300x300 dpi

INA Card Interface SCSI

Power Requirement

Power RequirementPower Requirement

Power Requirement

Power Source

Frequency

Power Supply

Power Consumption

100~240V full range

50 - 60 Hz

Switching Adapter, Output: 24V 2.5A

<32 W

Scan Accuracy: FlatBed ADF

1. Leading Edge <-1 ~ +2mm <-2.5 ~ +2.5mm

2. Side Edge <-1 ~ +2mm <-2.5 ~ +2.5mm

3. Skew <1mm <2mm

4. Magnification Rate

Tolerance(Horizontal and

Vertical)

-1.5% ~ +1.5% -1.5% ~ +1.5%

Physical Dimension Width: 570 mm/ Depth: 430 mm/ Height: 190 mm

Weight 7 kg

Continued on the next page

Lexmark Internal Use Only

1-4

Environment

Operating

Storage

10°C to 35°C (50°F to 95°F)

20% to 80% R.H.

-40°C to 65°C (-40°F to 149°F)

10% to 90% R.H.

Random Vibration

Unpacked non-op:

Package:

Bump:

Drop

10-200Hz, 0.005 P.S.D. (G^2/Hz)

5-200Hz, 0.015 P.S.D. -6dB/oct

One hour in 3 major axes

Severity: 25g/6ms, 1000times in each direction

Must meet NSTA specification

Drop Point: 1 corner, 3 edges and 6 surfaces

Total 10 times

Acoustic Noise Operating: 58 dB or less

Electrostatic Discharge EC 1000-4-2 ESD Standard

Safety Regulation UL, CSA, TUV/GS, SEMKO

EMC regulation FCC Part 15 Subchapter J Class A

CE Marking, C-Tick

Reliability Conditions

Reliability ConditionsReliability Conditions

Reliability Conditions

1. Monthly Scan Volume 10,000 scans

2. Power-on Time 8.0 hours/day

20 days/month

3. Environment 20 - 30 C

40 - 70% RH (Relative Humidity)

MTBF > 5,000 hours

MSBF 50,000 pages

Scanner Life 5 years or 600,000 scans(excluding the pad

replacement)

MTTR < 30 minutes

Energy Saver Time Less than 45 seconds

Time to First Copy Less than 14.5 seconds

Life of Lamp 15,000 hours

ADF:

ADF:ADF:

ADF:

General Specifications:

-Optical Resolution

-Document Capacity

300x300dpi

50 Sheets

Document:

-Document Size

-Thickness

Max. 8.5" x 14" (W x L)

Min. 4.5"x5.5" (W x L)

0.05~0.15 mm

Paper Feed:

-Jam

- Miss Feed

- Multiple Feed

- Dog Ear

- Time to First Copy

- Acoustic Noise:

1/2,000 pages

1/500 pages

Less than 14.5 seconds

Operating: 58dB or less

Table 1-

Table 1-Table 1-

Table 1-1

1 Product Specifications

Product Specifications Product Specifications

Product Specifications

1.5

1.51.5

1.5 Device Configuration

Device ConfigurationDevice Configuration

Device Configuration

1-5

This section describes the device configuration of the multifunction product.

1.5.1

1.5.11.5.1

1.5.1 Outer View

Outer ViewOuter View

Outer View

Figure 1.1 OptraImage 443 Outer View

Figure 1.1 OptraImage 443 Outer ViewFigure 1.1 OptraImage 443 Outer View

Figure 1.1 OptraImage 443 Outer View

Document

cover

LCD-display

Control

Panel

Paper Feed

Tray

Auto Document

Feeder

Output

Paper Tray

Extension

Power Switch

Power Port

SCSI Port

SCSI ID

Selector

SCSI Port

Lexmark Internal Use Only

1-6

1.5.2

1.5.21.5.2

1.5.2 Mechanical Configuration

Mechanical ConfigurationMechanical Configuration

Mechanical Configuration

The equipment consists of the following components:

Document Cover

and Paper Tray

Upper Cover

ADF Unit

Lower Unit

Main Control PCBA

Output Paper Tray

Document Cover

ADF Paper Feed Tray

Upper Housing Unit

ADF Cover

Optical Chassis (ADF)

ADF Module

Bottom housing unit

Motor unit

Panel Cover

Panel PCBA

Optical Chassis (Flatbed)

Image Scanner

1-7

Document

Cover

ADF Paper Feed Tray

ADF Module

ADF Cover

Upper Housing

Unit

Output Paper

Tray

Panel PCBA

Panel Cover

Main Control

PCBA

Optical

Chassis

(Flatbed)

Motor Unit

Bottom

Housing

Optical Chassis (ADF)

Lexmark Internal Use Only

1-8

1.5.3

1.5.31.5.3

1.5.3 Wiring Configuration

Wiring ConfigurationWiring Configuration

Wiring Configuration

Figure 1.2 Wiring Configuration

Figure 1.2 Wiring ConfigurationFigure 1.2 Wiring Configuration

Figure 1.2 Wiring Configuration

Control

Panel Board

CCD Board 2

LED Board

Motor

Module

CCD Board 1

Main Control

PCB Board

1-9

1.6 Theory of Operation

1.6.1

1.6.11.6.1

1.6.1

Introduction

IntroductionIntroduction

Introduction

This section explains the theory of operation of this scanner.

The microprocessor in this scanner controls the following functions.

• Interface

• Scanning module drive

• ADF drive

• Reading mode (reading density, document size, half-tone) selection.

Figure 1.3 shows the operation mode sequence.

Reading mode setting

ADF drive/scanning module drive Reading

Figure 1.3 Operation sequence

Figure 1.3 Operation sequenceFigure 1.3 Operation sequence

Figure 1.3 Operation sequence

1.6.2

1.6.21.6.2

1.6.2 Mechanical Section Operation

Mechanical Section OperationMechanical Section Operation

Mechanical Section Operation

1.6.2.1

1.6.2.11.6.2.1

1.6.2.1 Scanning module drive

Scanning module driveScanning module drive

Scanning module drive

The carrier is driven by a 2-phase stepping motor. The stepping motor has a rotation of 1.8°(full step).

And the use of micro-stepping control technique can work the motor to move the scanning module at

1/300 inch/step.

1.6.2.2

1.6.2.21.6.2.2

1.6.2.2 ADF mechanism operation

ADF mechanism operationADF mechanism operation

ADF mechanism operation

The ADF is driven by a 2-phase stepping motor. The stepping motor has a rotation of 1.8° (full step).

The use of micro-stepping control technique enables the motor to move the paper on the ADF at 1/300

inch/step.

Lexmark Internal Use Only

1-10

1.6.3

1.6.31.6.3

1.6.3 System Description

System DescriptionSystem Description

System Description

The OptraImage 443 is a duplex scanner which can scan synchronously both top and bottom size in a

document. It includes one main control board, two optical modules, one ADF module and one LCD panel.

1.6.3.1

1.6.3.11.6.3.1

1.6.3.1 System Diagram

System Diagram System Diagram

System Diagram

Figure 1.4 shows the system block diagram.

The main control board controls all the modules built up the OptraImage 443. It includes a RISC. ARM7

as the main controller, two Flash Memory as program area and one EDO RAM as working space, one

89C52 for panel control, two ASIC for flatbed and ADF image processing and each have external 32MB

SRDRAM for data processing, two A/D converter for processing flatbed and ADF CCD signals input, two

sets of motor drivers for driving flatbed and ADF motors, two SCSI controller for data interfacing with

host and printer.

The power is an external 24V/2500mA power adapter for the whole system. There are some different

values inside the OptraImage 443:

+24V Power directly comes from the power adapter and used for flatbed and ADF motor.

+12V Power converted from 7812 to supply flatbed and ADF CCD

+5V Power converted from 34063 to supply 89C52, SCSI controller and some 5V logic.

+5V Power converted from 7805 to supply flatbed and ADF A/D converters and all analog circuit.

+3.3V Power converted from LM2576T to supply ARM7, two image processing ASICs and some 3.3V

logics.

1-11

Figure 1.4 System Block Diagram

Figure 1.4 System Block DiagramFigure 1.4 System Block Diagram

Figure 1.4 System Block Diagram

Video Circuit

Main board

Control

section

SCSI

controller

To host

Optical unit

Lamp unitInverter

Flatbed

motor

Power supply

LED display

Sensor input

ADF section

ADF motor ADF sensor

Control

Panel

SCSI

Controller

To printer

ADF's video

circuit

Lexmark Internal Use Only

1-12

1.6.3.2

1.6.3.21.6.3.2

1.6.3.2 SCSI interface:

SCSI interface: SCSI interface:

SCSI interface:

This scanner and the host are connected via the SCSI interface. It is an 12-bit, asynchronous SCSI

interface and can be connected to both SCSI-1 and SCSI-2 interfaces.

1.6.3.3

1.6.3.31.6.3.3

1.6.3.3 Video circuit:

Video circuit: Video circuit:

Video circuit:

The video circuit of this scanner includes: CCD driving circuit, CCD signal processing circuit.

1 CCD Driving Circuit

The CCD driving circuit is used to generate correct signals to the CCD, so that the CCD

may generate the correct image data.

Pin Assignment for Flatbed Video Circuit J5:

Pin No. Name Function

1 A.G Analog Ground

2 VOR CCD red Channel Output Signal

3 A.G Analog Ground

4 VOG CCD Green Channel Output Signal

5 A.G Analog Ground

6 VOB CCD Blue Channel Output Signal

7 A.G Analog Ground

8 +24Va Analog +24V Power Supply

9 RS CCD Reset Gate

10 Clamp CCD Clamp Signal

11 PH1 CCD Clock Phase

12 PH2 CCD Clock Phase

13 D.G Digital Ground

14 SH Channel Shift Gate

15 D.G Digital Ground

16 +5V +5V Power Supply

17 D.G Digital Ground

18 Lamp V Inverter Power Supply

19 Lamp V Inverter Power Supply

20 H.G Inverter Ground

21 H.G Inverter Ground

22 Home

Sensor

1-13

Pin Assignment for ADF Video Circuit J12:

Pin No. Name Function

1 H.G. Inverter Ground

2 +24V Analog +24V Power Supply

3 GND +5V GND

4 +5V +5V Power Supply

5 GND +5V GND

6 SH Channel Shift Gate

7 RS CCD Reset Gate

8 Clamp CCD Clamp Signal

9 GND +5V GND

10 PH2 CCD Clock Phase

11 PH1 CCD Clock Phase

12 H24G +24V Ground

13 A.G Analog Ground

14 +24Va Analog +24Va Power Supply

Pin Assignment for ADF Video Circuit J11:

Pin No. Name Function

1 A.G Analog Ground

2 VOR CCD Red Channel Output Signal

3 A.G Analog Ground

4 VOG CCD Green Channel Output Signal

5 A.G Analog Ground

6 VOB CCD Blue Channel Output Signal

Lexmark Internal Use Only

1-14

2. CCD signal processing circuit

The video noise suppression circuit is to eliminate the reset noise and low frequency noise of CCD and

then PGA performs video gain control. The “level shift” circuit is used to bias the PGA output to

satisfy the reference bottom requirement of the A/D converter. The “DC-OFFSET Adjust” circuit is used

to adjust the bias level of video signal.

* PGA: Programmable gain amplifier

CCD

MUX

Video Noise

Suppression

Circuit

DC Offset

Adjust Circuit

Level

Shift

A/D

Converter

PGA*

1-15

1.6.3.4

1.6.3.41.6.3.4

1.6.3.4 Sensor input

Sensor input Sensor input

Sensor input

The sensor input includes home position sensor and ADF cover sensor.

1. Home position sensor

The home position of the carrier motor is detected by photo sensor. The photo

transistor transmission to the photo sensor receiver circuit is shown below .

Figure 1.5 Home position sensor

Figure 1.5 Home position sensorFigure 1.5 Home position sensor

Figure 1.5 Home position sensor

The home position is detected when the carrier passes between the LED and the photo transistor.

2. ADF cover sensor

The operation of the ADF cover sensor is the same as that of the home position sensor.

R R

+5V +5V

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Lexmark OptraImage 443 User manual

Lexmark OptraImage 443 User manual

Lexmark OptraImage 443 User manual

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