Epson ES-1200C User Guide

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EPSON

Scanner

User’s Guide

CAUTION:

Before connecting the scanner to a power source, release the transportation Screw as shown in the figures below.

ACHTUNG:

ATTENTION:

ATENCION:

ATTENZIONE:

Bevor Sie den Scanner ans

Netz

anschlieBen,

l&en

Sie bitte die

Transport-Sicherungsschraube wie in den folgenden Abbildungen

dargestellt.

Avant de connecter le scanner au secteur, retlrez la vis de blocage pour le

transport comme

indique

ci-dessous.

Antes de conectar el scanner a la toma de corriente, afloje el tomillo de

protection

para el

transporte

tal

coma

puede ver en la ilustracion

siguiente.

Prima di collegare lo scanner all’ alimentazione elettrica rimuovere la vite di bloccaggio come

indicate

nella figura sottostante.

Printed in Japan 94.10-.I

4003766

sol-00

Note: Before scanning, make sure the strip of glass shown in the illustration is completely free of dust or dirt. If it is not, a black vertical line may appear in the scanned image. If this happens, wipe the glass with a soft, clean cloth.

Hinweis: Stellen Sie vor jedem Scanvorgang sicher, da auf dem gescannten Bild ansonsten eine schwarze vertikale

daf3

das in der Abbildung markierte Glasfeld absolut sauber und staubfrei ist,

Lit-tie

auftreten kann. Reinigen Sie das Glasfeld in einem solchen

Fall mit einem weichen sauberen Tuch.

Note: Avant de numeriser, assurez-vous que la glace

verticales

noires peuvent apparaitre sur

l’image.

Si des lignes noires apparaissent, nettoyer la glace

rep&en&

sur l’illustration est propre. Si ce n’est pas le cas, des lignes

avec un

NOTA IMPORTANTE: Antes de empezar a explorar, compruebe que la franja de cristal indicada en la

mente limpia. Si no lo cristal

utilice

un paiio suave y limpio.

Nota:

Prima di effettuare la scansione, assicuratevi trario potrebbe apparire una

panno

soffice e pulito.

esta,

es posible que aparezca una

linea verticale

nera nell’immagine acquisita. In quest0 case e necessario pulire la finestra con un

the

lfnea

vertical negra en la imagen explorada.

fine&a

indicata nell’illustrazione sia perfettamente pulita. In case con-

chiffon doux et propre.

ilustracibn

Para

este completa-

limpiar esa franja de

A Note Concerning Responsible Use of Copyrighted Materials Like photocopiers, scanners can be misused by improper copying of

copyrighted material. Although Section 107 of the U.S. Copyright Act of 1976 (Title 17, United States Code), the “fair use” doctrine, permits limited copying in certain circumstances, those circumstances may not be as broad as some people assume. Unless you have the advice of a knowledgeable attorney, be responsible

and respectful by not

canning published material without the

permission of the copyright holder.

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission No patent liability is assumed with respect to the use of the information contained herein. Neither is any liability assumed for damages resulting from the use of the information contained herein.

Neither Seiko Epson Corporation nor its affiliates shall be liable to the purchaser of this

product or third parties for damages, losses, costs, or expenses incurred by purchaser or

third parties as a result of: accident, misuse, or abuse of this product or unauthorized modifications, repairs, or alterations to this product.

Seiko Epson Corporation and its affiliates shah not be liable against any damages or problems arising from the use of any options or any consumable products other than those designated as Original EPSON Products or EPSON Approved Products by Seiko Epson

Corporation.

of Seiko Epson Corporation.

EPSON is a registered trademark of Seiko Epson Corporation.

ES-12OOC is a trademark and EPSON Connection is a service mark of Epson America, Inc.

General Notice: Other product names used herein are for identifcation purposes only and may be

trademarks of their respective companies.

CAUTION:

Before connecting the scanner to a power source, release the transportation screw as shown in the figures below.

ACHTUNG:

ATTENTION:

ATENCION:

ATTENZIONE:

Bevor Sie den Scanner ans

Netz

anschlieBen,

l&en

Sie bitte die

Transport-Sicherungsschraube wie in den folgenden Abbildungen

dargestellt.

Avant de connecter le scanner au secteur, retlrez la vis de blocage pour le

transport comme

indique

ci-dessous.

Antes de conectar el scanner a la toma de corriente, afloje el tomillo de

protection

para el

transporte

tal

coma

puede ver en la ilustracion

siguiente.

Prima di collegare lo scanner all’ alimentazione elettrica rimuovere la vite di bloccaggio come

indicate

nella figura sottostante.

Printed in Japan 94.10-.I

4003766 sol-00

Hinweis: Stellen Sie vor jedem Scanvorgang sicher, da auf dem gescannten Bild ansonsten eine schwarze vertikale

daf3

das in der Abbildung markierte Glasfeld absolut sauber und staubfrei ist,

Lit-tie

auftreten kann. Reinigen Sie das Glasfeld in einem solchen

Fall mit einem weichen sauberen Tuch.

Note: Avant de numeriser, assurez-vous que la glace

verticales

noires peuvent apparaitre sur

l’image.

Si des lignes noires apparaissent, nettoyer la glace

rep&en&

sur l’illustration est propre. Si ce n’est pas le cas, des lignes

avec un

NOTA IMPORTANTE: Antes de empezar a explorar, compruebe que la franja de cristal indicada en la

mente limpia. Si no lo cristal

utilice

un paiio suave y limpio.

Nota:

Prima di effettuare la scansione, assicuratevi trario potrebbe apparire una

panno

soffice e pulito.

esta,

es posible que aparezca una

linea verticale

nera nell’immagine acquisita. In quest0 case e necessario pulire la finestra con un

the

lfnea

vertical negra en la imagen explorada.

fine&a

indicata nell’illustrazione sia perfettamente pulita. In case con-

chiffon doux et propre.

ilustracibn

Para

este completa-

limpiar esa franja de

Options How to Use This ManuaI Warnings, Cautions, and Notes Where United States Users Can Get Help

Chapter 1 Setting Up the Scanner

Choosing a Place for the Scanner Releasing the Transportation Screw Plugging in the Scanner Initialization Connecting the Scanner to the Computer

SCSI

Installing Scanner Software

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

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

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

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

CompuServe On-Line Support.

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

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

Computer types Connecting the parallel interface

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

SCSI connections Terminators Connecting the SCSI Power-on sequence

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

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

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

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

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

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

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

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

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

1 2 2 2 3

1-2 1-3 1-4 1-5 1-5 1-6 1-6 1-8 1-8 1-10 1-10 1-12 1-12

111

Chapter 2 Scanner Basics

Lights and Buttons

Scanner errors

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

Responsible use of copyrighted materials Placing a Document on the Scanner Scanning Large or Thick Documents

Raising the back of the document cover

Using the document shelf

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

Removing the document cover

Scanner Setting Guidelines

Image type or mode

Resolution.

Size or scale

Halftoning and dropout

Brightness

Color correction

Gamma correction

Cropping

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

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

Judging Image Quality Equipment

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

RAM and hard disk size

Accelerator boards Video cards Monitors

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

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

File compression software

Maintenance

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

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

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

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

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

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

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

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

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

Replacing the fluorescent lamps

Transporting the Scanner

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

..........

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

...........

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

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

2-2 2-3

2-3 2-3 2-6 2-6 2-7 2-8 2-9 2-9

2-10 2-14 2-15 2-15

2-15

2-15 2-15 2-16 2-16 2-16 2-16 2-17 2-17 2-17 2-18 2-19 2-19

Chapter 3 Troubleshooting

Problems and Solutions

Indicator lights.

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

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

3-2 3-2

Chapter

4 Technical Specifications

Scanner Specifications Electrical Specifications Environmental Conditions Parallel Interface Specifications

Timing charts

SCSI Specifications

Signal pin assignments

Initialization

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

.......................................................... 4-4

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

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

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

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

Appendix

Scanner Functions

How the scanner works

Scanner settings

Glossary

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

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

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

Index

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

4-2 4-4

4-5 4-8 4-9

4-10 4-11

A-2 A-2 A-3

introduction

The EPSON® ES-12OOC is a true 600 dpi full-color flatbed image scanner with an A4 size scanning area. It has the ability to scan in color or gray-scale monochrome, making it ideal for virtually all uses, from simple drawings to complex full-color illustrations. It achieves extremely high quality in color by reading 30 bits per pixel and saving 24 bits per pixel.

Options

The following optional items are available to expand the versatility of your scanner. For detailed information on the use of these options, see the guides that come with the options.

Automatic Document Feeder 03813011) This option is designed primarily for optical character recognition (OCR) scanning. With software that supports the ES-1200C and OCR, you can stack up to 30 pages in the automatic document feeder and scan them automatically. You can then use them in a word p

rocessing

program just as if you had typed them yourself.

Transparency Unit (B813021) This option allows you to scan transparent materials, primarily 35mm slides and negatives.

Introduction 1

How to Use This Manual

Chapter 1 describes setting up your scanner and connecting it to your computer. Be sure to read this first. Chapter 2 gives basic information on using your software and scanner, including maintenance and transportation Chapter 3 contains troubleshooting information, and Chapter 4 and the Appendix provide technical information. See the end of this guide for a glossary of scanner terms and an index.

Warnings, Cautions, and Notes

Warnings must be followed carefully to avoid bodily injury.

Cautions must be observed to avoid damage to your

Notes contain important information and useful tips on the operation of your scanner.

equipment.

Where United States Users Can Get Help

Epson America provides local customer support and service through a nationwide network of authorized EPSON dealers and Service Centers.

EPSON also provides the following support services through the EPSON Connection” at (800) 922-8911:

Assistance in locating your nearest Authorized EPSON Reseller or Service Center

Technical assistance with the installation, configuration, and operation of EPSON products

2 Introduction

EPSON technical information library fax service

Product literature with technical specifications on our

current and new products

Sales of supplies, parts, documentation, and accessories for your EPSON product

Customer Relations

CompuServe® On-tine Support

The fastest way to access helpful tips, specifications, drivers, application notes, and bulletins is through the Epson America

Forum on CompuServe. If you are not currently a member of CompuServe, you are

eligible for a free introductory membership as an owner of an EPSON product. This membership entitles you to:

An introductory $15 credit on CompuServe

Your own user ID and password

A complimentary subscription to CompuServe CompuServe’s monthly publication

To take advantage of this offer, call (800) 848-8199 in the United

States and Canada and ask for representative #529. In other countries, call (614) 529-1611 or your local CompuServe access

number.

If you are already a CompuServe member, simply type GO EPSON at the menu prompt to reach the Epson America

Forum.

Magazine,

Introduction 3

Important Safety Instructions

Read all of these instructions and save them for later reference. Follow all warnings and instructions marked on the scanner.

Unplug the scanner before cleaning. Clean with a damp cloth only and do not use liquid or aerosol cleaners. Do not spill liquid on the scanner.

l Do not place the scanner on an unstable surface or near a radiator or

heat register.

l Do not block or cover the openings in the scanner’s cabinet. Do not

insert objects through the slots.

l Use only the type of power source indicated on the scanner’s label. l Connect all equipment to properly grounded power outlets. Avoid

using outlets on the same circuit as photocopiers or air control systems that regularly switch on and off.

Do not let the scanner’s power cord become damaged or frayed.

l If you use an extension cord with the scanner, make sure the total

ampere rating of the devices plugged into the extension cord does not exceed the cord’s ampere rating. Also, make sure the total of all devices plugged into the wall outlet does not exceed 15 amperes.

Except as specifically explained in this User’s Guide, do not attempt to service the scanner yourself.

Unplug the scanner and refer servicing to qualified service personnel under the following conditions:

If the power cord or plug is damaged; if liquid has entered the scanner; if the scanner has been dropped or the cabinet damaged; if the scanner does not operate normally or exhibits a distinct change in performance. Adjust only those controls that are covered by the operating instructions.

If you plan to use the scanner in Germany, observe the following:

To provide adequate short-circuit protection and over-current protection for this scanner, the building installation must be protected by a 16 Amp circuit breaker.

J3eim Anschluf3

sichergestellt werden, 16 A Uberstromschutzschalter abgesichert ist.

des Scanners an die Netzversorgung

da13

die

Gebaudeinstallation

muf3

mit einem

4 Introduction

Chapter 1

Setting Up the Scanner

Choosing a Place for the Scanner Releasing the Transportation Screw Plugging in the Scanner Initialization Connecting the Scanner to the Computer

Computer types Connecting the parallel interface

SCSI

Installing Scanner Software . . . . . . . . . . . . . . . . . . . .

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

SCSI connections Terminators Connecting the SCSI. Power-on sequence

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

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

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

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

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

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

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

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

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

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

1-2 1-3 1-4 1-5 1-5

1-6 1-6

1-8 1-8 1-10 1-10 1-12

1-12

Setting Up the Scanner

1-1

Choosing a Place for the Scanner

You should consider the following when selecting a location for your scanner:

Place the scanner on a flat, horizontal, stable surface. If the scanner is tilted or at an angle, it cannot operate properly.

Place the scanner close enough to the computer for the cable to reach.

Allow some space behind the scanner for the cables, and make sure to place the scanner where you can easily unplug the power cord. Also allow sufficient space above the scanner so that you can fully raise the document cover if necessary.

Keep the scanner away from high temperatures and humidity and places subject to rapid changes of temperature and humidity.

Keep the scanner away from direct sunlight and strong light sources.

Avoid places subject to shocks and vibrations.

1-2

Setting Up the Scanner

Releasing the Transportation Screw

Before connecting the scanner to a power source, you must

release the transportation screw.

Place the scanner on a flat, stable surface so that its rear

1. panel is facing you.

Locate the round screw knob in the middle of the rear panel.

2. Turn the screw counterclockwise as shown by the arrow.

If necessary, turn the screw with a coin. The screw has a built-in spring, so it pops out a little when it is released. You cannot remove the screw.

Note: You will need to screw in the transportation screw when you store or transport the scanner.

Setting Up the Scanner

1-3

Plugging in the Scanner

Firmly connect the power cable to the power inlet on the

rear

of the scanner and the other end into an appropriately

grounded outlet as shown below.

If any of the scanner’s lamps come on, press the button to turn the scanner off.

OPERATE

1-4

Warning:

Whenever you turn of the scanner, wait at least 10 seconds before turning it back on. Rapidly turning it on and off can damage the scanner.

Setting Up the Scanner

In this step you observe the scanner’s self initialization. This lets you see that the scanner is operating properly before you connect it to your computer.

Open the document cover so you can see the operation of the scanner during the initialization.

2. Turn on the scanner by pressing the When the scanner is initializing, the fluorescent lamps on the

carriage flash and the carriage’s position is reset. If the carriage is not at the home position (the rear of the scanner), it moves to the home position.

When the scanner has completed its initialization, the light comes on. If the scanner does not work as described, turn it off. Then make sure that you have released the transportation screw and that the power cord is firmly plugged in and turn it on again.

If it still does not work as described, see your dealer or call the EPSON Connection at (800) 922-8911.

OPERATE

button.

READY

Connecting the Scanner to the Computer

Your scanner has both a bidirectional parallel interface and a SCSI (Small Computer System Interface). You can connect both of the interface cables to the scanner at the same time. The scanner switches automatically to the appropriate interface.

Note: When the scanner is capturing an image, the computer connected to the other interface cannot use the scanner. When the computer connected to the parallel interface is turned not work.

off,

the

RESET

Setting Up the

Scanner

button may

1-5

Computer types

For a PC-compatible computer, do one of the following: Install a bi-directional parallel interface board in your

computer. Then connect the computer to the scanner’s

bidirectional interface.

Note: IBM® PS/2® computers and some other computers have built-in bi-directional parallel interfaces. You do not need to install one in those

computers

your printer.

Install a SCSI board in your computer. Then connect the computer to the scanner’s SCSI interface.

For a Macintosh@ computer you do not need to install a board in your computer; you just connect your Macintosh to the scanner’s SCSI interface.

To use an interface correctly, you may need to change settings on the scanner, computer, or both. The following sections explain how to set up and connect each type of interface.

unless you need the built-in parallel interface for

Connecting the parrallel interface

Caution:

1-6

The scanner’s bi-directional parallel interface requires a compatible type of interface on your computer. You may not be able to use the ordinary parallel printer interface on your computer; check your computer’s specification to see if the parallel interface is bi-directional.

Setting Up the Scanner

Use a standard shielded parallel interface cable.

Make sure that both the scanner and computer are turned

Off.

2. Connect the 25-pin end of the cable to the computer; then tighten the screws on the sides of the connector.

Connect the 36-pin end of the cable to the scanner; then fasten the connector with the clamps on the sides of the connector.

Setting Up the Scanner

1-7

SCSI

For some computers, you first install a SCSI board in your computer. Then follow the directions below to connect your scanner and computer. All Macintoshes have SCSI ports; you do not need to install a SCSI board in the computer. Follow the directions below to connect the scanner to your Macintosh

SCSI connections

The SCSI interface allows you to connect up to eight devices, including the computer, in what is called a daisy-chain arrangement. A daisy chain is made up of a computer and one or more SCSI devices. Only the first SCSI device is connected to the computer; each of the other devices is connected to the previous device.

Each device has a SCSI ID number: the computer is usually

number 7, and each of the other devices must have a different number between 0 and 6. Also, the first device and the last device in the chain (not including the computer) must have a terminator, and no other device can have a terminator. The SCSI on the scanner has two 50-pin connectors.

If you connect the scanner directly to the computer, you need a SCSI cable with a 25-pin connector on one end (for the computer) and a 50-pin connector on the other end (for the scanner). If you connect the scanner to another SCSI device, use a SCSI cable with 50-pin connectors on both ends.

1-8

Setting Up

the Scanner

SCSI ID number setting

The factory set SCSI ID of the scanner is 2. The computer is usually ID number 7. If you are going to add the scanner to a

system in which one of your SCSI devices already has a SCSI ID of 2, change the ID number of the scanner to an unused number as described next.

Locate the SCSI ID rotary switch on the rear panel of the scanner.

To change the SCSI ID, turn the small dial to the desired number.

Caution:

Do not set the SCSI ID to an ID number that is already assigned to another device. The computer, scanner, devices will not function properly.

Setting Up the Scanner

and

other

1-9

The scanner has a built-in terminator. If the scanner is the only SCSI device you connect to your computer or if it is the last

device in the daisy chain, leave the internal SCSI terminator turned on. It is on if the switch is up.

If the scanner is in the middle of a daisy chain, turn the terminator switch off.

Do not use an external terminator.

Connecting the SCSI

Connect the scanner with the SCSI as follows:

See that the scanner, the computer, and all other SCSI devices are turned off and unplugged from the power source.

1-10

Setting Up the Scanner

Connect the 50-pin end of the cable to either the top or

2. bottom SCSI connector of the scanner; then fasten the connector with the clamps on the sides of the connector, as shown.

Connect the other end of the cable to the SCSI port of your

3. computer or the other SCSI device.

Notes:

The SCSI port of SCSI icon

$3)

the

Macintosh is the larger port with the

over it.

If you are connecting the scanner to a SCSI device other than the computer, use a cable with 5O-pin connectors on both ends.

The connection is now complete. Connect the power cables.

4. Always turn on the scanner and other external SCSI devices

before you turn on your computer.

Setting

the Scanner

1-11

Power-on sequence

Follow these instructions for the power-on sequence each time you turn your computer and SCSI devices on.

If you have an internal hard disk, turn on the scanner and any other SCSI devices you plan to use. Wait a few seconds; then turn on the computer.

If you have an external hard disk, turn on the scanner, external hard disk (first on the daisy chain), and any other SCSI devices you plan to use. Wait a few seconds; then turn on the computer.

SCSI devices in the middle of the daisy chain may be left off if you don’t plan to use them.

Installing Scanner Software

Now that you have connected the scanner to your computer, the next thing to do is install your scanner software. Follow the instructions in the user’s manual for the software. Then read Chapter 2, “Scanner Basics,” before your first scan

1-12

Setting Up the Scanner

Chapter 2 Scanner Basics

Lights and Buttons

Scanner errors

Responsible use of copyrighted materials Placing a Document on the Scanner Scanning Large or Thick Documents

Raising the back of the document cover.

Using the document shelf

Removing the document cover Scanner Setting Guidelines

Image type or mode

Resolution

Size or scale

4 Halftoning and dropout 4

Brightness

4 Color correction 4

Gamma correction

Cropping.

Judging Image Quality

Equipment

RAM and hard disk size Accelerator boards Video cards Monitors. File compression software

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

.........

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

..........

2-2 2-3

2-3 2-3 2-6

2-6 2-7

2-8 2-9

2-9 2-10 2-14 2-15 2-15 2-15 2-15 2-15

2-16 2-16

2-16 2-16 2-17 2-17 2-17

Maintenance

Replacing the fluorescent lamps

Transporting the Scanner

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

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

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

Scanner Basics 2-1

2-18 2-19

2-19

Lights and Buttons

The scanner has three indicator lights and two buttons.

lights

button

OPERATE

button

light (green)

Comes on when the scanner is turned on.

READY

light (green) Comes on when the scanner is ready to scan images. This light flickers during scanning. When an error occurs, it and the

ERROR ERROR

Indicates when an error occurs. Along

light indicate the type of error. light (red)

with the READY

light, it

indicates the type of error.

OPERATE

button

Turns the scanner on and off.

RESET

button Resets the scanner after an error occurs. Pressing this button during scanning stops the scanner and may cause an error in the scanning software. This button may not work if two computers are connected to the scanner, and the computer with the bi-directional parallel interface is not turned on.

2-2 Scanner Basics

Scanner errors

If an error occurs, the scanner stops operating and the and

ERROR

details.

lights show the type of error. See Chapter 3 for

Responsible use of copyrighted materials

Remember to respect the rights of copyright owners. Don’t

scan published text or images without first checking the copyright status.

Placing a Document on the Scanner

Turn on the scanner by pressing the The

OPERATE

light comes on.

OPERATE

button.

READY

Scanner Basics 2-3

Turn on the computer and see that the scanner’s

2. light has come on. Open the document cover.

Place the document on the document table, with the side to

3. be scanned down. Make sure that the document is carefully aligned.

READY

2-4 Scanner Basics

4. Close the document cover gently so that the aligned document is not moved.

Note: Make sure that the document is flat against the glass surface so

that the image is properly focused. Also make sure to close the

document cover. This prevents interference from external light. Always keep the document table clean. See “Maintenance” later

in this chapter for information on cleaning the scanner.

Avoid twisting the document cover when you open or close it.

Do not leave photographs on the document table for an extended

period of time; they may stick to the glass.

Do not place heavy objects on top of the scanner.

5. Start the scanner software on the computer, and follow its procedures to scan the image.

Scanner Basics 2-5

Scanning Large or Thick Documents

Your scanner has three ways you can adjust it so that you can scan large or thick documents or other materials.

Raising the back of the document cover

For thick documents or other materials, you can raise the back of the document cover, as shown below. Then close the cover and scan.

2-6 Scanner Basics

Using the document shelf

For wide documents or other materials, you can lift the

document shelf into place as shown below.

After you have finished using the document shelf, push in on the support of the shelf, as shown below. Then return the shelf to its former position.

Scanner Basics 2-7

Removing the document cover

For especially difficult documents or other materials, you can completely remove the document cover. Just raise it completely; then pull it off in the direction of the arrows in the illustration below.

Reattach the document cover reversing the procedure above. Be sure to hold the cover in a vertical position as you slip its attachments into place.

2-8 Scanner Basics

Scanner Setting Guidelines

This overview of scanner settings will give you a little background for using your scanning software. The messages

on the screen and your software manual should be your main guide to scanning, but this section can supplement your understanding of your software’s on-screen menus.

Each 4 icon indicates a setting that you make or check. The first two are the most important.

Note:

Your software may use a somewhat different order or slightly different

terminology.

lmage type or mode

For the best and most efficient scans, you need to know which type of images you are scanning: drawings, black and white photographs, or color photographs. The corresponding terms used by scanning software are

Line art

This is the setting for drawings, including all drawings or pictures made up of black and white only, with no gray tones, such as the ones below.

line art, gray scale,

and

color.

Scanner Basics 2-9

Gray

scale

(also

called monochrome or

This is the setting for black and white photographs and drawings with various shades of gray in addition to black and white. You can also use this setting for color photographs that will be printed in black and white.

color

This is the setting for color photographs or other originals in color.

Note: Scans from photographs are better than scans from published images, such as newspaper or magazine pictures, because conflicts. experimenting with your scanner.

Resolution

The best resolution setting depends on the image type or mode

(line art, gray scale, or color) “Printing methods” and “File size” below; then use the table on

page 2-13 to find the resolution you should use.

Use

photographs instead of published images for

and

continuous tone

half toning

the printing method. Read

Printing of display methods

The best resolution to use depends on what type of output or printing method you will be using. The usual printing methods for scanned images fall into the following categories.

2-10

Black and white printers

good to excellent for text and line art but are not as good

for gray-scale images. These printers can be used for reproducing photographs in documents like newsletters that do not require the highest quality.

Scanner Basics

(laser, inkjet, or dot matrix) are

The examples below show the typical quality of photographs printed on laser printers. Laser printers with a resolution of 600 dpi produce much better results

for photographs than 300 dpi laser printers, as you can see below.

300 dpi

6OOdpi

Scanner Basics 2-11

Electronic color printers use laser, ink jet, or other technologies to produce color or gray scale images that range from coarsely patterned to nearly photographic

(often called continuous tone) quality. It is best to see samples from a color printer before you decide to use it. These printers are usually used for small quantities of color images or for preliminary proofs of images that will be printed on a printing press.

Printing presses are for high quality and high volume work. You scan and edit your images and then send the files to a

service bureau or printing company, which uses high

resolution phototypesetters (also called imagesetters) for high quality text and gray-scale images. For full-color

images, you scan in color and then use your image editing

software to manipulate the image and produce color separation files. If you plan to do this, see the guidelines below on resolution and then follow the instructions in your software manual for making separations. Your service bureau or printing company should also provide helpful information.

Computer screens require lower resolutions than most printers. If your scanned image will be viewed only on a computer monitor or screen and will never be printed, you can use lower scanning resolutions for top-quality work. Remember that the scanner can read and save up to

16 million colors. If your computer can display only 16 or 256 colors, you will not be able to see all of the quality of the scanned image.

File size

In gray scale and color, use the lowest resolution that gives

acceptable quality for your printing or display method because high resolutions mean large files. An A4 or letter-size full-color scan at 300 dpi uses as much as 25 megabytes (MB) of disk space.

2-12 Scanner Basics

Large files use up your computer and hard disk memory; they take longer to process, to print, or to transmit by modem; and they are more difficult to save to a disk for sending to a service bureau or printing company.

Many printing methods cannot use all of the information

stored in a high-resolution scan, so in these cases part of the information is wasted.

Resolution guidelines

This table shows the recommended resolutions in dots per inch or pixels per inch for the image types and printing or display methods just described. Also, you may want to experiment with your scanner settings, possibly using a cropped version of your image to save time, until you achieve the desired results.

The resolution that you use to scan an image (input resolution) does not have to match the dots per inch of your printer (output resolution). Input and output resolution are two quite different measurements. Just follow the guidelines below.

Resolution guidelines

Scanner Basics 2-13

Here’s how to calculate more precisely the required resolution for

gray scale or color on an electronic color printer or a printing press:

Find out the the measurement of resolution for high quality image printing. Do not confuse it with dots per inch, which is not

an equivalent measurement.

Multiply the lines per inch by two to find the best scanning resolution For example, for 175 lines per inch (a common resolution for magazines and books), scan your image at 350 dpi (2 x 175 = 350).

For even smaller file sizes, try scanning at about 1.5 times the lines per inch This may cause little or no perceptible loss of output quality.

Note: For color or gray scale images, ignore the dpi (dots per inch) of your printing device. Even though your service bureau may use an

imagesetter with a 2400 dpi resolution, a scan resolution of only 150 to 350 dpi will produce the highest quality gray-scale or color images the imagesetter can print. Similarly, even though your laser printer

may have a 300 dpi resolution, a scan resolution

give the best quality gray scale images it can print.

lines per inch

of the printing method. This is

only 80 to 120 dpi

Size or scale

This is usually expressed as a percentage. If you want your printed image to be larger than the original, increase its size with this setting. If you are not sure how large you want the printed image, choose the reduce the image size later with your software. (You can also increase the size with your software, but you may lose some

quality.)

Note:

The size of the image on your monitor will probably be different from the size

2-14 Scanner Basics

the image when you print it.

largest size you might use. You can

Halftoning and dropout

For nearly all uses, you have special needs that require halftoning at the time of scanning, see the Appendix for technical information on halftoning, dithering, and dropout.

Brightness

The minus numbers lighten the image, the plus numbers darken the image. To lighten a dark original use -1 to -3, or to darken a light original use +l to +3. Usually you should leave this setting at zero.

Color correction

Use the default or CRT display.

Gamma

Use the default or CRT Display B.

Note:

Your software may have different settings for Brightness, Color

correction, and Gamma correction.

correction

none is

the best setting for these. In case

J Cropping

If you know you are going to use only part of an original, use your software’s cropping tools before you scan (if possible) to select only the part of the image that you will use. This will make your image file smaller.

Scanner Basics 2-15

Judging lmage Quality

When you look at your monitor to evaluate a scanned image, remember that the image will look different when it is printed. A monitor is a comparatively low-resolution device; some images that look good on a monitor do not look as good when printed and vice versa. Keep in mind the final output device as you choose settings and manipulate the image.

In addition, each output device may produce different results. A proof printed on an electronic color printer will look different from the same image printed on a printing press.

Equipment

Your present equipment may be sufficient for your scanning needs, but if you are not satisified with the quality of the images on your monitor or with the speed of image processing, read this section While it does not contain specific recommendations, it describes various possibilities for improving your scanning system. For further information, see your dealer or an experienced scanner user.

RAM and hard disk size

Scanned images can use much more memory than text files, so you may need more Random Access Memory (RAM) in your computer and a larger hard disk than you have used previously.

Accelerator boards

In addition to memory, processing speed is important because large files take longer to process than small ones. Therefore, you may want to add an accelerator board to your computer.

2-16 Scanner Basics

video cards

A video card that is sufficient for text may not be good enough for displaying graphic images, especially in color. If all your

scanned images look coarse on your monitor, you may want to

upgrade your video card. You will need 24-bit color, also called true color or millions of colors, for the best display of images.

The resolution of your monitor, of course, also affects the

quality of the image you see. Consider a high resolution

monitor if you do precise color work, but first be sure you have the right video card.

File compression software

Many different programs are available to make image files smaller for storage or transmission. For example, they can enable you to store a 3MB image file on a floppy disk. Some compression software can compress images and restore them with no loss of data or quality; others compress images more, but the restored file is not exactly the same as the original. The difference between the original and restored files is, however, not always noticeable.

Scanner Basics 2-17

Maintenance

To keep your scanner operating at its best, you should clean it periodically. Before cleaning, unplug the power cable.

Clean the outer case with mild detergent dissolved in water. If the glass of the document table gets dirty, clean it with a soft

dry cloth. If the glass is stained with grease or other hard-toremove material, use a small amount of glass cleaner on a soft cloth to remove it. Wipe off any remaining liquid with a dry cloth.

Be sure that there is no dust on the glass of the document table. Dust can cause white spots in your scanned image.

Warning: Be careful not to get water on the scanner mechanism or electrical components.

Caution: Do not scratch or damage the glass do not use a hard or abrasive brush to clean it. A damaged

glass surface can decrease the scanning quality.

the document table, and

Never use alcohol, thinner or corrosive solvent to clean the scanner. These chemicals can damage as well as the case.

Be careful not to spill liquid into the scanner mechanism or electronic components. This could permanently damage the mechanism and circuitry.

Do not spray lubricants inside the scanner.

Never open the scanner case.

2-18 Scanner Basics

the

scanner components

Replacing the fluorescent lamps

The luminosity of the fluorescent lamps declines over time. If the lamps break or become too dim to operate normally, the scanner stops working and both the

ERROR

must be replaced. For details, contact your dealer.

light flash. When this happens, the lamp assembly

Warning: Never open the case of the scanner. If you think repairs or adjustments are necessary, consult your dealer.

READY

light and the

Transporting the Scanner

When you transport the scanner a long distance or store it for an extended period, follow the steps below to secure the carriage.

Turn on the scanner and wait until the carriage moves to the home position (the back of the scanner). Then turn off the

scanner.

2. Push in the transportation screw and turn it clockwise to secure the carriage.

Scanner Basics 2-19

Note: If the scanner is broken, the carriage may not automatically

the home position. If fit does not, raise the front it up until the carriage comes perform Step 2 above.

rest

at the back of

of the

the scanner. Then

return

scanner and hold

2-20 Scanner Basics

Chapter 3 Troubleshooting

Problems and Solutions

Indicator lights

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

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

3-2 3-2

Troubleshooting 3-1

Problems and Solutions

The problems you may have while using the scanner

often

involve the operation of your software and computer. Problems

fall in the following major categories:

Incorrect setup of the interface

Inappropriate selection of the scanner functions

Incorrect setup of your computer or software

Incorrect operation of your software.

Also see the documentation that came with your software,

computer, and printer for possible solutions.

Indicator lights

If an error occurs, the scanner stops operating and the

and

ERROR lights show the type

Error type Command error Interface error Fatal error Option error

READY

I On

Off Flashing Flashing off

of error.

ERROR

I On

Flashing

Off

READY

Command error

The scanner has received incorrect commands from your scanning software.

When this error occurs, try the scanning operation with your software over again The scanner returns to normal when it receives correct commands. Normally you do not need to reset the scanner.

3-2 Troubleshooting

lnterface error

The interface setup is wrong, or the scanner is not properly connected to the computer.

When this error occurs, check the interface connection Then push the

RESET

button or turn the scanner off and then back on

to reset it.

Fatal error

This indicates one of the following problems:

One or more fluorescent lamps needs to be replaced. The transportation screw is not released. The scanner is broken. There is a problem, such as an open cover, with the optional transparency unit or the optional automatic document feeder.

Check that the transportation screw is released and check any options installed; then push the

RESET

button. If the scanner still does not operate properly, try turning the scanner off and then back on. If the scanner still does not operate properly, or if this error occurs repeatedly, consult your dealer.

Option error

This indicates a problem such as a paper jam with an installed option unit.

Check the option unit and correct the cause of the trouble.

Troubleshooting 3-3

The OPERATE OPERATE

light does not come on.

Make sure the power cable is correctly plugged into the scanner and the power outlet.

The READY READY

light does not come on.

Make sure the scanner is correctly connected to the computer and that the computer is turned on.

The scanner does not start scanning.

See that the

scanner’s

READY light

is on.

Make sure that you have selected the correct interface port and settings with your software. Also make sure the interface board on your computer is properly installed.

If you are connecting the scanner with the SCSI interface, see that the terminator and SCSI ID are correctly set up.

If you have other expansion boards in your computer, see that they are not interfering with the interrupt setting of the interface board for your scanner. (See your computer manual.)

3-4 Troubleshooting

The scanner software does not work properly.

Be sure you have correctly installed your software.

Check that the system requirements, such as the operating system version, are correct for using your software.

See if the computer has enough memory for your software. If you are running other software at the same time, using RAM resident programs, or have many device drivers, the computer may not have enough memory remaining. (gee your software and computer manuals.)

Make sure that your software supports this model of scanner and that you correctly installed or set up the software. (gee your software manuals.)

The entire image is distorted or blurred.

Make sure that the document is placed flat against the document table (the glass area).

You may have accidentally moved the document during scanning. Check the position of the document and do not move it while the scanner is operating.

See that the scanner is not tilted or placed on an unstable surface.

Troubleshooting 3-5

Part of the image is distorted or blurred.

Part of the document may be wrinkled, warped, or not in contact with the document table (the glass area). Be sure the document is uniformly flat.

Caution: Do not place heavy objects on the document table.

The edges of the document are not scanned.

The document table has non-readable areas around the edges. Adjust your document’s position so that the image comes inside the readable area.

Color is patchy or distorted at the edges of the document.

If the document is very thick or warped at the edges, the edges of the image may be colored. Cover the edges of the document with opaque paper to avoid having outside light interfere.

If part of the document is outside the document table, the edge may not be in contact with the document table and may be discolored. Change the position of the document.

3-6 Troubleshooting

The image is

faint or out of focus.

Check that the document is placed flush against the document table.

Check your gamma correction setting. If it is set for printer, the image looks lighter when displayed on a monitor.

Make the brightness setting darker.

The image is too dark.

Adjust the brightness with your software. Also check the

brightness and contrast values of your display screen.

Straight lines in the image are jagged.

The document may be placed at an angle on the document table. Align it so that the horizontal and vertical lines are carefully aligned with the scales on the top and side of the document table.

Troubleshooting 3-7

The image does not look the same as the original.

Try different settings and combinations of the scanner functions.

Check that your software is correctly installed. Check the capability of your software and computer. (gee your software and computer manuals.)

If you are importing an image file into your application software, see if the file format is acceptable for your software. Also check that the settings of your application and your image match (See your software manual.)

A line of dots is always missing on the scanned image.

If this happens on your printed image only, your printer or its print head is probably malfunctioning. (gee your printer manual.)

If this happens on both your screen and printout, the scanner’s sensor may be malfunctioning. Consult your dealer.

When halftoning is used, textured patterns composed of a series of dots appear on particular areas of an image.

This is normal. See the Appendix for examples of halftoning.

3-8 Troubleshooting

The color on the display seems different from that of the original image.

Check the settings of the scanner functions, especially data format (bits/pixel/color), gamma correction, and color correction. Try a different combination of these settings.

Check the capability of your computer, display adapter, and software. Some computers can change the color palette to adjust colors on your screen. (gee your computer manual.)

Exact matching of colors is very difficult. Check the manuals for your software and your monitor for information on color matching and calibration.

The printed color seems different from that of the originals.

Exact reproduction of colors is very difficult. See your software manual or your printing company for guidance on color matching.

The printed image is larger or smaller than the original size.

Check the image size settings in your software. Do not use the

size of the image on your monitor to judge the printed size.

Troubleshooting 3-9

The image cannot be printed on the printer, the printout is garbled, or the printout is not an image.

Check that the printer is properly connected with the computer and is correctly set up. (See your printer manual.)

Check that your software is properly installed and set up for your printer. (See your software manual.)

3-10 Troubleshooting

Chapter 4

Technical Specifications

Scanner Specifications Electrical Specifications Environmental Conditions Parallel Interface Specifications

Timing charts

SCSI Specifications

Signal pin assignments

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

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

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

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

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

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

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

4-2 4-4

4-4

4-5

4-8

4-9 4-10

Technical Specifications 4-1

Scanner Specifications

Scanner type: Photoelectric device: Effective pixels: Maximum document

size:

Scanning resolution:

Output resolution:

Color separation: Reading sequence:

Flatbed, color /monochrome CCD line sensor 5096 dots by 7016 dots at 600 dpi, 100% 216 mm by 297 mm

(8.5

inches by 11.7 inches)

US letter size or A4 600 dpi

50,60,72,75,80,90,100,120,133,144, 150,160,175,180,200,216,240,300,320, 360,400,480,600,800,900,1200,1600,

1800, and 2400 dpi. Values above 600 through software

interpolation. By switching light sources (G, R, B) Monochrome mode:

One-pass scanning (Dropout color selectable from Green, Red or Blue.)

Color page sequence mode:

Three-pass scanning (G, R, B)

Color line sequence mode:

One-pass scanning (G, R, B)

size: Image data:

Brightness:

4-2 Technical Specifications

50% to 200% in 1% steps. 10 bits per pixel per color saved as 8 bits

per pixel per color maximum

levels

Maximum reading in pixels:

16128 (main scan)

Halftoning process:

Gamma correction:

Color correction:

Interface: Light source: Reliability:

Enable/disable selectable. 3 halftoning modes (A, B, and C) and

4 dither patterns (A, B, C, and D) for bi-level data

(Halftoning mode A only in color line sequence mode)

(2 downloadable dither patterns) 2 for CRT display

3 for printer 1 for user defined

1 type for CRT display

3 types for printer output, available in color line sequence mode only

1 type for user defined Bi-directional parallel and SCSI Noble gas fluorescent lamps Main unit MCBF: 100,000 cycles of carriage

movements

Dimensions and weight:

Width: Depth: Height: Weight:

383 mm (15 inches) 595 mm (24 inches) 170 mm (7 inches) about 12 kg (26 lb)

Technical Specifications

4-3

Eletrical Specifications

120

Rated voltage: Rated frequency:

VAC or 220 to 240 VAC

to6OHz

Power consumption:

Insulation resistance:

Approx. 45 W 10

MC2

between AC power line and chassis

at5OOVDC

Environmental Conditions

Temperature:

Humidity:

Operating conditions:

Note:

Specifications are subject to change without notice.

Operation: 40” F to 95” F (5” C to 35” C) Storage: -13” F to 140” F (-25” C to 60” C)

Operation: 10% to condensation

Storage: 10% to 85%, without condensation Ordinary office or home conditions.

Extreme dust should be avoided.

Operation under direct sunlight or near a strong light avoided.

80%,

source

without

should be

4-4 Technical Specifications

Parallel lnterface Specifications

lntefface type: Data format: Synchronization: Handshaking:

Logic level:

Connector type:

Connector pin arrangement:

Bi-directional parallel interface

8-bit parallel By external strobe pulse

By ACKNLG and BUSY signals Input/output data and interface control

signals are TTL level compatible 36-pin Centronics® type connector

Technical Specifications 4-5

Signal pin

assignments

Pin No.

2 3 4 5

R&urn pin

21 22 23 24 25 26 27

Slgnal

STROBE

DATA0 DATA1 IN/OUT DATA2 DATA3 DATA4 DATA5 DATA6 DATA7

ACKNLG

BUSY OUT/(IN)

Dlrectlan Function

INAOUT)

IN/OUT IN/OUT

IN/OUT IN/OUT IN/OUT IN/OUT IN/OUT

OUT/ON)

STROBE pulse to read In or send width must be more than 0.5 microseconds

at the

terminal. These slgnals represent

information of bits 1 to 8 respectively. Each signal Is at a high level when data is logical 1 and low

when it Is

About a Low indicates that data

has been that the scanner is ready to accept more data.

When this signal is hlgh, the scanner cannot

receive data. The signal

is high:

2) during scanning

3) when the scanner

not ready

4) when the scanner has

an error

Out

data. Pulse

receiving

loglcal

12-microsecond

during data entry

pulse.

received

and

12-15 16 17 18

GND C-GND

4-6 Technical Specifications

Not used

Logical ground level

Scanner chassis ground

Not used

Slgnal pln assignments (continued)

Pin ROtUfIl

No. pin

19-30

Signal

DIrectIon

INIT

Function

Twisted pair return signal ground level

When this signal level

becomes low. the scanner ls reset to the

state when power Is

turned on. This level is

usually High. The pulse

width

must be more than 50 microseconds the receiving terminal.

32 33

34-35 36

“Return” denotes the twisted-pair return, to be connected

GND

NC DIR

Not used

Twlsted pair return slgnal

ground level Not used Low indicates the

direction is input.

at signal ground level. For interface wiring, be sure to use a twisted-pair cable for each signal, and to complete the connection on the return side. These cables should be shielded and the ground connected to the chassis of the host computer and the scanner.

All interface conditions are based on TTL level.

Technical Specifications 4-7

The figures below show the timing for the b&directional parallel interface as viewed from the scanner.

OUT (from scanner to computer)

STROBE

ACKNLG (I)

STROBE

ACKNLG

(0)

BUSY (I)

DATA (I)

DIR

(0)

(from computer to scanner)

(0)

BUSY (I)

(I)

DATA

(I)

mln 0.5

l.JSh

mln 0.5

IJS

DIR

(0)

4-8 Technical Specifications

min

0.5

PS,

SCSI Specifications

lnterface type:

Function:

Logic level: Electrical standard:

ANSI X3.131-1986 standard The following functions are included.

BUS FREE phase ARBITRATION phase SELECTION/RESELECTION phase COMMAND phase

(Logical Unit number is fixed to 0 and

command link function is not supported.)

DATA phase

Data in phase

Data out phase STATUS phase MESSAGE phase

MESSAGE IN phase

MESSAGE OUT phase ATTENTION condition RESET condition

TTL level compatible As per ANSI X3.131-1986

ID Setting:

Selectable from 0 to 7 and 9 with the rotary switch (8 should not be selected, and 9 is for the

Connector

type:

Two 50-pin connectors

Connector pin arrangement:

ES-300CW

Technical Specifications 4-9

emulation mode.)

Signal pin assignments

In this table, the direction of the signals is given relative to the scanner.

1 Fin

Signal

GND

I/O

I----

DB3 DB4 DB5

I/O

I/O I/O 29 I/O I/O

No. I

1-12

14-25 35-37 39-40 42

13 26 27

30 31

Descrlptlotl

Ground

Not connected Data bus 0 Data bus 1

1 DotabusP

Data

bus

Data

bus 4

Data

bus 5

MSG

SEL

C/D

I/O

4-10 Technical Specifications

46 47 48 49

Message Select Control/Data

Request

Input/Output

I I

Initialization

The scanner can be initialized (returned to a fixed set of

conditions) in three ways. Hardware initialization:

When the power is turned on.

When the scanner receives an INIT signal at the parallel interface (pin 31 goes low).

When the scanner receives a SCSI Reset signal at the SCSI

interface. Software initialization:

When the software command ESC @ (initialize the scanner)

is received.

When the SCSI Bus Device Message is received.

Technical Specifications 4-11

Chapter 5

Saving and Exporting Images

You can always scan an image using your TWAIN-compliant

image editing application. However, if your application is not

TWAIN-compliant, you can use EPSON Scan! II to scan the

image and export it in a format your application can open, as

described in this chapter.

Saving a Scanned Image

before you export an image, you need to save it in its original

EPSON Scan! II format. Otherwise, you will not be able to

retrieve it again in EPSON Scan! II. Follow these steps:

Start EPSON Scan! II, if necessary.

Select Acquire

Select

Scan to scan your image.

from the File menu.

4. Choose dialog box:

File

Name:

rlzll

Save

AS from the File menu. You see the following

Rlrectorles: c3epscan2

D&es:

EC:

dlskl~vdl

Saving

and

Exporting Images

Cancel

5-1

Choose the drive and directory where you want to save the image.

Type a filename for your image in the

sure to use the file extension .ORG.

7. Choose OK. The image is saved in the EPSON Scan! II file format. You can

now open this file and export it with a different format, as

described below.

File Name

field. Make

Exporting an Image

EPSON Scan! II allows you to export an image in a file format your application software can use. For information on file formats your software can open, see your software manual.

Note Your application software Scan! Zlfilejimnat and EPSON Scan! ZZ cannot open an exported

imagefile. Always save an image in EPSON Scan! II before exporting.

cannot

open images saved in the EPSON

Follow these steps to export an image:

5-2

Choose dialog box:

Saving and Exporting Images

Export

from the File menu. You see the following

Choose the drive and directory where you want to save the

image.

3. Type a filename for your image in the

4. You can choose one of menu: DIB, TIFF5.0, TIFF6.O(JPEG), JPEG, and EPSF. (For a description of these file formats, see the Term Glossary.)

Note: You can select TIFF6.0(JPEG) and JPEG formats only if you

selected

Image Type dialog box when you scanned the image.

5. If you selected the TIFF6.0(JPEG) or JPEG format, EPSON Scan! II allows you to choose the image quality. Since JPEG uses a Lossy compression scheme, selecting higher quality gives you less compression. To choose the image quality, move the

6. Choose OK. The image is saved in the selected file format. You can now

import this file into your application software; see your software manual for instructions.

16 Million Colors for

Quality

these

formats from the File Format

the Pixel Depth

slide bar to

the

File Name

setting

desired setting.

field.

in the

Acquiring and Exporting an Image

EPSON Scan! II allows you to scan and export an image directly into a selected file format, without displaying it on the screen. Since the image is not displayed, you can perform scanning operations more quickly.

Note: EPSON Scan! II cannot open an image file once it is exported.

Saving and Exporting Images

5-3

Follow these steps:

Start EPSON Scan! II, if necessary.

Choose Acquire and Export from the File menu. You see the TWAIN screen. (If you see the easy screen, click Advanced.)

Choose Scan. You see the following dialog box:

ccl

tl I

Rlrectorles: ciepeccan2

0 epscm2

JPEG formats only if you

for the Pixel Depth setting in the

Rle &me:

Choose the directory and drive where you want to save the exported image.

5. Type a filename for your image in the File Name field.

You can choose one of these formats from the File Format menu: DIB, TIFF5.0, TIFF6.O(JPEG), JPEG, and EPSF. (For a description of these file formats, see the Term Glossary.)

Note:

You

can select

selected

Image Type dialog box when you scanned the image.

TIFF6.0(JPEG) and

16 Million Colors

5-4

Saving and Exporting Images

If you selected the TIFF6.0(JPEG) or JPEG format, EPSON Scan! II allows you to choose the image quality. Since JPEG is a Lossy compression scheme, selecting higher quality gives you less compression. To choose the image quality, move the

8. Choose OK.

The image is scanned and exported in the selected file format. You can now import this file into your application software; see your software manual for instructions.

Quality

slide bar to the desired setting.

Exiting EPSON Scan! II

To exit EPSON Scan! II, make sure you have saved or exported your image file. Then choose Exit from the File menu.

Saving and Exporting Images

5-5

Appendix

Scanner Functions

How the scanner worksr....................

Scanner settings

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

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

A-2 A-2 A-3

Appendix A-l

Scanner Functions

Various image processing functions are built into your scanner. They are briefly described in Chapter 2. This Appendix contains fuIler, more technical, information All functions must be controlled from the scanner software, and most functions can be combined with others to produce a variety of effects.

Note: Because allfunctions must be wntrolled$!om scanner all the scannerfunctions may be available, or the range may be limited. The software may Perprm unique processes on the image data and the results can be manual. When using application details.

dijkrentfiom

soware,

see its documentation for

sofware,

those described in this

not

the settings

How the scanner works

The image is divided into a two-dimensional matrix of tiny elements. Each element is called a pixel, or picture element. The sensor on the carriage scans a line of pixels, and as the carriage

moves, the succeeding lines of pixels are scanned.

The values of the electrical current for pixels are then processed and converted into binary data that can be used by computer devices.

Images such as photographs contain various, almost infinite,

tones between black and white as well as various colors. These are detected as varied intensities of reflection In monochrome reading, the scanner converts the intensities into the tonal data for each pixel. In color reading, the scanner separates the various colors into three primary colors-green, red, and blue-and converts the tones of these colors for each pixel. By this method, the scanner can read any colors within the image.

A-2 Appendix

The data produced by the scanner needs to be reproduced to be seen as an image. This is done, for example, by displaying the image data on a computer screen or printing it on a printer. The same image data can appear different depending on how it is reproduced. The various scanner functions aid in providing optimum reproduction results by adjusting the way the image is captured and converted into image data.

Scanner settings

The table below summarizes the scanner functions and the settings available on your scanner. Each of them is explained in the following pages. All of these functions are controlled by the software commands from your scanner software.

Funciian Avciilable

Resolution

size

Data format

Color mode

Brightness

Halftoning

Gamma correction 5 sefflnas for output devices plus 1 user-defined Color correctlon

mode

29 settings from 50 to 2400 dpi

5O%to2CXXat

1 to 8 Captures up to 10 bits/pixel/color. When lt captures over 8 bits, it converts the information to 8

blts/pbel/color.

Color line sequence mode, color page sequence

mode and monochrome mode (dropout color

selectable)

7 levels

3 modes and disabled 4

dither

4 settings for output devices plus 1 user-defined

wfflngs

l%step

bits/plxel/cobr

patterns

You may need to do some trials by yourself to find out your preferred settings because the original images and the output methods you use can vary greatly.

Appendix A-3

The output resolution determines how many pixels are used for scanning and reproducing an image. Resolution is measured in units of dpi (dots per inch), spi (samples per inch), or ppi (pixels per inch). (AU are equivalent units of measure.) As the resolution value increases, the image is read and reproduced in finer detail. At 600 dpi, for example, an image of one square inch is represented by 360,000 dots.

The 29 resolution settings allow you to choose the best resolution for most types of printers. The settings available are

50,60,72,75,80,90,100,120,133,144,150,160,175,180,200, 216,240,300,320,360,400,480,600,800,900,1200,1600,1800,

and

2400

dpi. To find a matching resolution for your particular

output device, follow the guidelines in Chapter 2.

Size of scale

The size or scale function allows you to reduce or enlarge the size of the output image. The value can be set in the range of

50%

to 200% in increments of 1%.

When the size is set to lOO%, the image is scanned at the actual size for the current resolution. The size values determine the vertical and horizontal lengths of the image. When the size is set to 200% the image is enlarged four times the original size. When the size is set to 50%, the image size is reduced to one fourth of the original size.

The size function affects the number of dots scanned. An image scanned at 180 dpi and 200% has the same number of dots as an image scanned at 360 dpi and 100%.

To enlarge or reduce the image size, use the scanner’s size function through your software at the time of scanning. Avoid increasing the image size after scanning because the image quality deteriorates. The default size value is 100%.

A-4 Appendix

Data fomat

The data format specifies the number of bits used to represent the tone of a pixel. The data format can be set in the range of

1 bit to 8 bits per pixel per color.

As the value increases, more tones and colors can be captured in the scanned image. In monochrome, 1 bit/pixel data) can represent only two levels of tones, black (0) or white (1). With 2 bits/pixel (quad-level data), four levels of tones can be represented by the binary values of 00,

91,lO

8 bits/pixel corresponds to 256 shades of gray, producing near photographic quality results.

In color, the data format defines tones for each of the three

primary colors of green, red, and blue. One bit/pixel/color can represent eight colors (2 x 2 x

2),

and 2 bits/pixel/color can

represent 64 colors (4 x 4 x 4). Eight bits/pixel/color (total

bits for a pixel) can represent over 16 million colors.

The scanner can read up to 10 bits/pixel/color. Above 8 bits/pixel/color the scanner converts the image data to 8 bits/pixel/color and sends it to the computer. This gives much higher quality.

@-level

and 11. Using

Data

formal

bit/pixel/color

blts/plxel/color

bits/pixel/color

blts/plxel/color

bits/pixel/color

blts/plxel/color

bits/pixel/color

Monochrome

grays

16 grays 32 grays 64

grays

128

grays

256 grays

color

8 colors 64 colors 512 colors

4,096 colors

32,768 colors 262,144 colors

2D97.152

16.777.216 colors

colors

Appendix A-5

bits

1 bit

To reproduce an image of more than 2 bits/pixel/color the output device should be capable of producing the same tones. Many displays and printers cannot do this and are limited to monochrome without gradations, or to 8 or 16 or 256 colors.

The data format chosen also affects the amount of data necessary for scanning and storing an image. The larger the bits per pixel value chosen, the larger the amount of image data becomes.

One of seven brightness levels can be chosen for scanning. Medium is the normal setting.

A-6 Appendix

It is better to use darker settings for line art, or faint original images, and to use lighter settings for darker original images. The brightness can be combined with any other function.

The graph below shows the differences between the brightness settings when the gamma correction is set for the CRT Display A setting.

Data

Darker Y

Ughtestl

=tiing

image input

Normal (center)

Lighter

Darkest

setting

Appendix A-7

Color mode

The color mode specifies color reading or monochrome reading. In color reading, you can choose either page sequence reading or line sequence reading. In monochrome reading a dropout color can be specified (green, red, or blue).

Color page sequence reading

The scanner scans the document three times (one each for

green, red, and blue), and produces three pages of image

data that combine to give full color image data. Since the image data can be divided into three sets, a computer with limited memory or processing speed can handle it more easily.

Color line sequence reading

The scanner scans the document with one pass of the carriage, reading green, red, and blue for every line. This yields more accurate color separation. Because the color for each pixel can be determined as soon as it is read, the color correction function can be used.

Monochrome reading

(staruiard)

The scanner scans the document with one pass and reads the image in monochrome (black and white). In standard monochrome, the scanner

Gminates

the document with the green, red, and blue lights all at once so that minimum dropout color results.

Dropout colors (monochrome reading only)

The dropout color is the color you tell the scanner not to read. You can choose a dropout color from green, red or blue. Use a dropout color when you do not want to read one of these colors-for example, when scanning an image on a colored background.

The default color mode is standard monochrome.

A-8 Appendix

Halftoning is a process of changing an image to a pattern of

dots. This is required because a printing press produces images

in a different way than photography does. Photographs have an almost infinite number of tones, with an

almost infinite number of colors for color photographs, but printing uses only individual single-color dots. Black and white images use black dots, and color images use only four colors of dots: cyan (blue-green), magenta, yellow, and black. The size and spacing of these dots is varied to simulate photographic continuous tones. In some halftoning the dots are quite noticeable, as you can see in one of the illustrations on page 2-11 of this manual. If the dots are fine enough, however, the printed image appears to have continuous tones, as you can see on the cover of this manual.

You can choose various types of halftoning at the time you scan, but it is nearly always best to choose the halftoning setting “off” or “none” and have the halftoning done by the image editing software or by the output device (such as a laser printer). The illustrations on page 2-11 were scanned in gray scale with no halftoning and printed on a black and white laser printer. The printer performed the halftoning so that it could print the image.

You will always get better results scanning from a photograph than from a printed image, such as a picture in a newspaper or magazine, because printed images have already been halftoned and you may see a conflict in the halftone methods.

Appendix A-9

You can select from three types of halftoning, as well as enable

or disable the halftoning process itself. When halftoning is

disabled, the tones that the data can represent are determined by the data format. Halftoning is not available when 3 bits/pixel/color or more are selected as the data format, since halftoning is not necessary for such data. Halftoning modes B

and C are not available with color line sequence reading.

Your scanner also provides four typical dither patterns for l- or

2-bits/pixel/color data format. With suitable software, you can

define two more dither patterns.

Note:

Usually your scanner software or printing method can halftoning. Therefore, you should usually patterns when you scan.

Halfloning mode A

This is the standard halftoning mode. The image is converted into a hard tone to produce a distinct image, and is suitable for most purposes. (1 and 2 bits/pixel/color)

not

use

pe+rm the

haljbning

or dither

Q Hdjloning

With this mode, the image is converted into a softer tone. This mode is suited for images which contain large areas of similar tones. (1 bit/pixel/color)

0 Halftoning molie

With this mode, the image is represented in a way similar to the screen commonly used for newspaper photographs. The gradations of the tones are represented by clusters of different numbers of dots. (1 bit/pixel/color)

A-10 Appendix

mode

Halftoning mode A

Haljbning mode B

Halfoning

mode

NOW

Dither pattern A

Halftone is expressed in 4 by 4 bayer dither pattern.

Dither pattern B

Halftone is expressed in 4 by 4 spiral pattern.

Dither pattern C

Halftone is expressed in 4 by 4 net screen dither pattern.

Dither pattern D

Halftone is expressed in 8 by 4 net screen dither pattern.

Appendix A-11

Dither pattern A

Dither pattern B

Dither pattern C Dither pattern D

Note:

Changing the size

a halftone-processed image with your application software may &grade the image. Instead use the scanner’s size or scalefunction at the time ofscanning to select your desired image size.

A-12 Appendix

This function adjusts the light intensity ratio between the original image and the output data. It brings out more detail in

areas of both highlight and shadow. When the image is reproduced on certain types of output devices, the tones of the image will be closer to those of the original. The term “gamma”

(y)

means the shape and slant of the line on the graph that

shows the ratio, as shown below

Lighter

CRT Display A CRT Display B

Data

Printer Output A Printer Output B Printer Output C

Darker

Lighter

Image input

Gamma correction provides five settings, and can be combined with all other scanner functions. Choose an appropriate setting from the five modes below.

CRT Display A

The output data is in proportion to the original image, as shown in the above graph. This setting is suited for most types of computer displays which can display an image in l-bit/pixel/color format. This mode is also suited for images without continuous tones, such as line art (y = 1).

Appendix A-13

CRT Display B

This setting is suited for analog-input CRT displays which can display an image with multiple levels of tones of more than 1 bit/pixel/color (y = 1.8). This is usually the best

setting.

Printer Output A

This setting is suitable for highdensity printers, such as 24-dot printers and some page printers. The image is converted into a lighter image to compensate for the higher

(darker) density of such printers. The image looks faint

when viewed on a CRT display.

Printer Output B

This setting is suitable for low-density printers, such as 8-dot (9-pin) printers, and page printers. The image is converted into a slightly darker image to compensate for the lower (lighter) density of such printers. The image looks faint when viewed on a CRT display.

Printer Output C

This setting is suitable for high contrast printing of images which contain both picture and text. This setting gives higher contrast and more definition than either Printer Output A or B. The dark and light parts of images are accentuated by this method.

Color of correction

Color correction is functional only with color line sequence mode, because the color of a pixel is immediately determined when the pixel is scanned. Color correction provides four

settings. To disable this function, simply choose color page

sequence reading or monochrome reading. This function processes the image data so that the data will be

most suited for the characteristics of the color output device used.

A-14 Appendix

CRT displays

This setting compensates colors for the characteristics of

color CRT displays.

Impact dot-matrix printers

This setting compensates colors for the characteristics of impact dot-matrix color printers.

Thermal transfer printers

This setting compensates colors for the characteristics of thermal transfer color printers.

Ink jet printers

This setting compensates colors for the characteristics of ink

jet color printers.

Appendix A-15

Glossary

addtive primary colors

Primary colors which produce white when mixed in a certain proportion. These are red, green and blue--the colors of the scanner lamps and color monitor displays.

bi-level data

Image data which is composed of 1 bit/pixel. A pixel is

represented by a single bit of digital data that can express only 1 (light) or 0 (dark).

bit

Short for binary digit. The smallest unit of data in computer processing. A bit can represent two values, on and off, or 1

and 0.

bit/pixel

The unit to indicate the number of bits allocated for a pixel. The larger the value, the more detail of a pixel is represented.

brightness

A scanner function to lighten or darken the output image data.

A unit of information consisting of eight bits. A byte can represent a control code or character.

A component of the scanner which contains the optical sensor and light source for scanning.

Glossary GL-1

color correction

A method of adjusting the color image data for a particular type of device so that the reproduction results become close to the original colors.

color separation

A process to convert full-color images into a limited number of primary colors. The additive primary colors (red, green, and blue) are used by the scanner and the subtractive primary colors (cyan, magenta, and yellow) plus black are used for printing press separations.

A set of values used when no other selections have been made.

dithering

A process in which software or an output device simulates continuous tones with groups of dots.

document

The physical item, such as a sheet of paper or a book, that you place on the document table for the scanner to read.

Short for dots per inch. A unit of measurement for resolution. The higher the value, the higher the resolution.

dropout color

A color you set the scanner not to recognize.

GL-2 Glossary

ESC/I

Abbreviation for EPSON Standard Code for Image scanners. A system of commands to control image scanners with software.

ESC/P

Abbreviation for EPSON Standard Code for Printers. A system of commands to control printers with software.

gamma correction

A method of adjusting the gamma curve so that the reproduction results on different types of output devices have gradations similar to the original image.

gamma curve

The graph that shows the contrast ratio between the input (original image) and output (image data) in image processing.

halftoning

A data processing method of converting continuous tones into patterns of dots so that the output data simulates the tones.

home position

The position at the back of the scanner where its carriage rests

before a scanning operation.

A device that uses computer files to produce high-resolution text and graphics output on film or paper. These are usually

found in service bureaus and printing companies.

Glossary GL-3

A printer that transfers ink onto the paper by striking the inked

ribbon with a number of small pins.

A printer that transfers ink onto the paper by spraying it

through a number of small nozzles.

A piece of hardware, a method, or a standard used for

connection between or among computer devices.

A type of color scanning that separates primary colors line by

line. The carriage makes only one pass.

Black and white images, or images represented only by the

intensity of luminosity.

The type of color scanning in which the entire image is scanned once for each separation color.

Short for picture element. Each image is composed of a number of pixels. Pixels are also counted in units of dots.

plain bi-level

Bi-level image data without the halftoning process.

GL-4 Glossary

An interface channel through which data is transmitted between devices.

primary colors

Basic colors. See additive primaries and subtractive primaries.

resolution

Indication of how finely an image is resolved into pixels. Measured in dots per inch (dpi), or pixels per inch (ppi), or samples per inch (spi).

scan

An operation performed by the sensor and the carriage. The image is divided into pixels by scanning.

scanning area

The physical size of the image that can be scanned by the

scanner.

subtractive primary colors

Primary colors that produce black when mixed in certain proportion. These are cyan magenta, and yellow. In printing,

black is often added to give more definition because mixing of

actual inks cannot produce pure black.

A value that is referenced to determine whether a certain value is larger or smaller. The scanner uses a number of thresholds to convert an image into digital data.

Glossary GL-5

lndex

Accelerator board, 2-16 Art, line, 2-9, 2-13 Automatic document feeder, 1

Bi-directional interface, 2, 1-5-7 Bits/pixel/color, 3-9, A-5-6 Black and white

images, 2-9-11 printer, 2-10-11

Board

accelerator, 2-16 expansion, 3-4 interface, 1-5-7

video, 2-17 Brightness, 2-15, 3-7, A-6-7 Button

OPERATE, 1-4, 2-2, 3-4

BESET, 2-2, 3-3

Cable

interface, 1-7, 1-8, 1-11

power, 4, 1-4 Card, video, 2-17 Carriage, 1-5 Chain, daisy, 1-8, 1-10, 1-12 Choosing a place, 1-2 Cleaning

document table, 2-18

scanner, 2-18

Color, 2-10, 2-13--14, A-2, A-8 Color correction, 2-15, A-14-15 Color printing, 2-16, 3-9 Color separation, 2-12 Colors, number of, A-5-7 Compression, file, 2-17 Computer, connecting to, 1-5-12

Continuous tone, 2-10, 2-12

Contrast, 3-7 Cord, power, 4, 1-4 Correction

color, 2-15, A-14-15

gamma, 2-15, 3-7, A-13-14 Cover, document, 1-5, 2-4-5 Cropping, 2-15

Daisy chain, 1-8, 1-10, 1-12 Darkness, 2-15, 3-7, A-6-7 Data format, 3-8, 3-9, A-5-6 Dimensions, 4-3 Disk, hard, 1-12, 2-13, 2-16 Display, 2-15-17 Distortion, image, 3-5-7 Dithering, A-10-12 Document

cover, 1-5, 2-4-5 placement, 2-4-5

table, 2-5, 2-18 Dot matrix, 2-10 Dots per inch, 2-13, 2-14

Dpi, 2-14 Drawings, 2-9-10

Dropout color, 2-15, A-8

Index IN-1

Electrical, 4-4 Electronic color printers, 2-12,

2-13 Environmental conditions, 4-4 Equipment, 2-16-17 ERROR light, 2-2, 2-19, 3-2 Expansion board, 3-4

File compression, 2-17 File size, 2-12-13, 2-16 Fluorescent lamps, 1-5, 2-19, 4-3 Focus, 2-5, 3-7 Format, data, 3-8, A-5-7

Images

continuous tone, 2-10, 2-12 gray scale, 2-10, A-5-7 printed, 2-9-11

Imagesetter, 2-12, 2-13-14 Initialization, 1-5, 4-11 Ink jet, 2-10 Interface

parallel, 1-5--7, 4-5, 4-8 SCSI, 1-8, 1-11,4-9

Interface cable, 1-5--7

Jagged lines, 3-7

Gamma correction, 2-15, 3-7,

A-13-14 Gray scale, 2-10, 2-13, A-5-7 Guidelines, resolution, 2-13-14

Halftoning, 2-15, 3-8, A-9-12 Hard disk, 1-12, 2-13, 2-16 Help, 2

Home position, 1-5, 2-19-20 Humidity, 1-2,4-4

IBM PS/2, 1-6 Image distortion, 3-5-7 Image type, 2-9-10

Lamps, 1-5, 2-19, 4-3 Laser, 2-10-12 Light

ERROR, 2-2, 2-19, 3-2

READY, 1-5, 2-2, 2-19, 3-2, 3-4 Lightness, 3-7, A-6--7 Line

art, 2-9, 2-10, 2-13

screen, 2-14

sequence mode, A-8, A-10,

A-13

Lines, jagged, 3-7

Lines per inch, 2-14 Location, scanner, 1-2 Lpi, 2-14

Macintosh SCSI port, 1-8 Maintenance, 2-18-19 Memory, 2-13, 3-5

IN-2 Index

Method, printing, 2-1--12 Mode, image type, 2-9-10 Monitor, 2-14, 2-16, 2-17 Monochrome, 2-10, A-2, A-8

Newsletters, 2-10

OPERATE button, 1-4, 1-5, 2-2

Optical Character Recognition

(ORC), 1

Options, 1 Output resolution, 4-2

Page sequence, 4-2, A-8 Parallel interface, 2, 1-5-7, 4-5

4-8 Photographs, 2-5, 2-9--11, A-9 Phototypesetter, 2-12 Pin connections, 4-5, 4-10 Pixels, 4-3, A-2, A-4 Placement

document, 2-4-5

scanner, 1-2 Plugging in, 1-4 Position, home, 1-5, 2-19--20 Power cord, 4, 1-4 Power on sequence, 1-12 Ppi, 2-13, 4-2, A-4 Press, printing, 2-12, 2-13, 2-16 Printed size, 2-14, 4-9

Printer

dot matrix, 2-10, A-14-15

electronic, 2-10-12, A-13-14

laser, 2-10-12

Printing method, 2-10-12

Printing press, 2-12, 2-13, 2-16

Problems and solutions, 3-2-10

Proofs, 2-12, 2-16

PS/2, 1-6

Quality, image, 2-16

RAM, 2-16

READY light, 1-5, 2-2, 2-19, 3-2,

3-4

Releasing,

transportation screw, 1-3

Removing

document cover, 2-8 Replacing lamps, 2-19 RESET button, 2-2, 3-3 Resolution, 2-10-12, A-4

guidelines, 2-13-14

output, 4-2, A-4

RGB, 4-2

Safety instructions, 4 Scale, 2-14, A-4 Scale, gray, 2-10, 2-14, A-5-7 Scales, document table, 3-7 Screen, line, 2-14

Index IN-3

Screw, transportation, 1-3,2-19 SCSI interface, 1-8, 4-9

ID number, 1-9 power on sequence, 1-12 terminator, 1-10

Sequence

line, A-8, A-10, A-14 page, A-8, A-14

power on, 1-12 Service bureau, 2-12 Settings,

2-9-15

Setup, 1-1--5 Size

file, 2-12-13, 2-16

image,

2-14,

A-4

printed, 2-14 Slides, 1 Solutions, 3-2-10 Space, 1-2

Specifications, 4-2--12 Spi (samples per inch), A-4 switch

SCSI ID number, 1-9, 4-9

Video card, 2-17

Weight, 4-3 Where to get help, 2

Table, document, 2-5, 2-18 Technical specifications, 4-2--11 Temperature, 1-2, 4-4 Terminator, 1-10 Timing, interface, 4-8 Tone, continuous, 2-10, 2-12 Transparency unit, 1 Transportation screw, 1-3, 2-19 Transporting scanner, 2-19 Troubleshooting, 3-2-10 Turning on the scanner, 1-4--5

IN-4 Index

Epson America, Inc.

20770 Madrona Avenue

Torrance, California 90503

Epson ES-1200C User Guide

Specifications and Main Features

Frequently Asked Questions

User Manual

Contents

introduction

Options

How to Use This Manual

Warnings, Cautions, and Notes

Where United States Users Can Get Help

Releasing the Transportation Screw

Plugging in the Scanner

Connecting the Scanner to the Computer

Computer types

Connecting the parrallel interface

SCSI

SCSI connections

Connecting the SCSI

Power-on sequence

Installing Scanner Software

Scanner errors

Responsible use of copyrighted materials

Placing a Document on the Scanner

Scanning Large or Thick Documents

Raising the back of the document cover

Using the document shelf

Removing the document cover

Scanner Setting Guidelines

lmage type or mode

Resolution

Size or scale

Halftoning and dropout

Brightness

Color correction

J Cropping

Judging lmage Quality

Equipment

RAM and hard disk size

Accelerator boards

video cards

File compression software

Maintenance

Replacing the fluorescent lamps

Transporting the Scanner

Problems and Solutions

Scanner Specifications

Eletrical Specifications

Environmental Conditions

Parallel lnterface Specifications

SCSI Specifications

Signal pin assignments

Initialization

Exporting an Image

Acquiring and Exporting an Image

Exiting EPSON Scan! II

Appendix

Scanner Functions

How the scanner works

Scanner settings

Glossary

Index IN-1