EPSON TWAIN Pro User’s Guide ®
Copyright Notice 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 of SEIKO EPSON CORPORATION. The information contained herein is designed only for use with this EPSON scanner. EPSON is not responsible for any use of this information as applied to other scanners.
Trademarks EPSON is a registered trademark of SEIKO EPSON CORPORATION, and EPSON Expression is a registered trademark of Epson America, Inc. EPSON FaxAdvice is a trademark, and EPSON SoundAdvice is a service mark of Epson America, Inc. General Notice: Other product names used herein are for identification purposes only and may be trademarks of their respective companies. Copyright © 1998 by Epson America, Inc.
Contents Introduction 6 System Requirements Windows System Requirements Macintosh System Requirements 7 7 8 How to Use This Manual 9 Where to Get Help 10 Scanning from Your Application Software 13 Basic Scanning Selecting Basic Settings 13 15 Previewing Your Scan Preview Zooming Options Using Marquees 21 22 22 Advanced Scanning 27 Customizing Image Types 28 Customizing Destination Settings 32 Adjusting Source and Target Image Sizes Scaling the Image 35 37 Page 4
Using Automatic Adjustment Features Using Auto Locate Using Auto Exposure 37 38 39 Adjusting Image Controls Using the Eyedropper Buttons 39 42 Using Tone Correction Customizing Tone Correction Settings 42 44 Using Color Adjustments Changing the Gray Balance Intensity Changing the Saturation 45 46 46 Saving Custom Settings 47 Configuring EPSON TWAIN Pro 48 Troubleshooting 50 Problems Using EPSON TWAIN Pro 50 Problems with Image Quality 55 Glossary 62 Index 64 Page 5
Introduction EPSON® TWAIN Pro is the interface program between your application software and scanner that lets you scan images into your software.
System Requirements Onscreen color and tone reproduction depend on the display capabilities of your computer system, including the video controller, monitor, and software. Before installing the scanner software, make sure your system meets the following minimum requirements. If you are scanning high resolution images, you need more than the minimum available hard disk space listed.
Macintosh® System Requirements EPSON TWAIN Pro supports the Apple® ColorSync™ 2.0 color management system and QuickTime.™ Onscreen color and tone reproduction depend on the display capabilities of your computer system, including the video controller, monitor, and software. ◗ PowerPC™ (or higher processor) running system 7.5 (system 8.
How to Use This Manual This User’s Guide tells you what you need to know to scan with EPSON TWAIN Pro on a Windows or Macintosh system. For instructions on installing the software, see Setting Up and Using Your Scanner. Scanning from Your Application Software gives step-by-step instructions for basic scanning and previewing of your images.
Where to Get Help EPSON provides customer support through the following services: Electronic support services Service Access World Wide Web From the Internet, you can reach EPSON’s Home Page at http://www.epson.com. EPSON Internet FTP Site If you have Internet FTP capability, use your Web browser (or other software for FTP downloading) to log onto ftp.epson.com with the user name anonymous and your e-mail address as the password.
Automated telephone services Service Access EPSON SoundAdviceSM For pre-recorded answers to commonly asked questions about EPSON products 24 hours a day, seven days a week, call (800) 922-8911. EPSON FaxAdvice™ Access EPSON’s technical information library by calling (800) 922-8911. You must provide a return fax number to use this service. EPSON Referral Service For the location of your nearest Authorized EPSON Reseller or Customer Care Center, call (800) 922-8911.
EPSON also provides technical support and information on the installation, configuration, and operation of EPSON products. Dial (310) 974-1970 (U.S.) or (905) 709-3839 (Canada), 6 A.M. to 6 P.M., Pacific Time, Monday through Friday. If you need help using software with an EPSON product, see the documentation for that program for technical support information.
Scanning from Your Application Software Before scanning, make sure you’ve installed the EPSON TWAIN Pro software (as described in Setting Up and Using Your Scanner) and the application software that supports EPSON TWAIN Pro, such as Adobe Photoshop.® This chapter gives you instructions on: If you start your application software before turning on your scanner, the software may not work properly.
3 Select the scanner source. For example, choose Import or Acquire from the File menu, and then select one of the following: Windows 95, 98, NT 4.0: Select TWAIN_32 Source Macintosh: Select TWAIN Source or TWAIN Select 4 Then select one of the following in the Select Source dialog box: Windows 95, 98, NT 4.0: EPSON TWAIN Pro(32-bit) Macintosh: EPSON TWAIN Pro For help anytime you’re using EPSON TWAIN Pro, click the Help button.
To select your scanning settings, see Selecting Basic Settings below. Selecting Basic Settings Document Source settings for optional equipment appear in the list only when that option is installed. If you’re scanning positive, reflective originals with the optional transparency unit and its reflective mat installed, be sure to select Flatbed as the Document Source option. For most scans, you need to check four basic settings: Document Source, Image Type, Destination, and Resolution.
2 For best results, select an Image Type each time you scan. Image types automatically select other TWAIN Pro settings and set the ranges for your Image Controls.
You can also change the settings for these options or save your own custom Image Types. See Customizing Image Types for more information. 3 Now select the output device where you want to display or print your scanned image from the Destination list. These destinations automatically select resolution and sharpness settings appropriate for the output device. Select one of the following options: Sharpness settings range from -2 (most unfocused) to 2 (sharpest).
Destination options Default settings Stylus Photo 700 Resolution: 720 Drawing/Halftone, 360 Photo; Sharpness: +1 Stylus Photo EX Stylus COLOR Resolution: 720 Drawing/Halftone, 240 Photo; Sharpness: +1 Stylus COLOR II Stylus COLOR IIs (Windows only) Stylus COLOR 200 (Windows only) Stylus COLOR 300 (Windows only) Stylus COLOR 400 (Windows only) Stylus COLOR 500 Stylus COLOR 600 Stylus COLOR 800 Stylus COLOR 850 Stylus Pro XL Stylus Pro XL+ Stylus Pro 5000 Scanning from Your Application Software Resolu
Destination options Default settings Stylus 1500 Resolution: 720 Drawing/Halftone, 240 Photo; Sharpness: +1 Stylus COLOR 1520 Keep in mind that the Resolution setting is closely related to the Target height and width and Scale settings, and drastically affects your file size.
5 It’s a good idea to preview your image before you actually scan so you can make any necessary changes. See Previewing Your Scan for preview instructions. See Advanced Scanning for information on the rest of the TWAIN Pro settings. 6 When you’re ready to scan, click the Scan button. The scanned image appears in your application window. 7 If necessary, click the Close button to close the EPSON TWAIN Pro window and return to your application.
Previewing Your Scan You can preview your image in a separate Preview window to see the effects of your settings before scanning. Previewing also allows you to determine the width and height of the scanned image and the final file size. To crop the image or scan multiple portions of an image, you can preview and use a marquee. See Using Marquees. You cannot preview an image that exceeds available memory or disk space.
Preview Zooming Options Click the Zoom Preview button to enlarge the active marquee. See Using Marquees for more information. Click the Return to Full Preview button to restore the zoomed marquee to a full preview (available only when the preview image or marquee is zoomed). Click the Return to Zoom Preview button to restore the image to the previous zoomed size (available only when the marquee was zoomed previously).
3 Drag the mouse across the image, creating a marquee (or frame). 4 Release the button when the marquee contains the image area you want. If you need to adjust the marquee size or position, see Resizing and Moving Marquees. To create additional marquees, see Creating Multiple Marquees. To delete or duplicate a marquee, see Deleting and Duplicating Marquees. Resizing and Moving Marquees To resize a marquee, place the mouse pointer over any of the eight boxes on its edge.
To resize the marquee proportionally, press the Shift key and drag the box (Windows only). To move a marquee, place the mouse pointer anywhere on the edge of the marquee. The pointer changes to a hand. Click the mouse button and drag the entire marquee to move it where you want it. To limit movement of the marquee to vertical or horizontal movement, press the Shift key and drag the marquee up and down or side to side (Windows only).
Creating Multiple Marquees You can create multiple marquees in one image to sequentially scan only the most important parts while ignoring the rest. You can also scan multiple images with a marquee on each. Marquees can be different sizes and they can overlap. Additional marquees can be made anywhere except on the frame of another marquee. The Total Marquees icon indicates how may marquees have been created.
the corner of an inactive marquee. The pointer changes to a single arrow (Windows). Click the mouse button once to select it as the active marquee. Once you’ve created multiple marquees, you can create different settings for each one and save them with a unique name for later use, if you want. See Saving Custom Settings for details. When you’ve finished selecting your settings, you can batch scan all the marquees at once using the Scan All button. Click Scan All in the EPSON TWAIN Pro window.
Advanced Scanning The instructions in this chapter tell you how to perform these advanced scanning operations: ◗ Customizing Image Types ◗ Customizing Destination Settings ◗ Adjusting Source and Target Image Sizes and scale ◗ Using Automatic Adjustment Features, such as Auto Locate and Auto Exposure ◗ Adjusting Image Controls, such as the exposure, highlights, and shadows ◗ Using Tone Correction ◗ Using Color Adjustments, such as saturation ◗ Saving Custom Settings ◗ Configuring EPSON TWAIN Pro preview and
Customizing Image Types You can change the settings for the predefined Image Type options in EPSON TWAIN Pro or add new options of your own. To customize an image type or create a new one, click the Image Type button in the EPSON TWAIN Pro window. You see the Image Type dialog box: Most of the example screens in this chapter are from EPSON TWAIN Pro for Macintosh. The Windows screens look a bit different, but the options are the same, unless noted in the text.
If you’re running Windows, you can also create a new image type. Select a predefined type with similar settings from the Image Type Name list, then type a name for your new image type in the box at the top of the list. Change the settings as necessary and click Save. To delete an image type, select it in the Image Type list and click Delete. The table below describes the Image Type settings.
Image Type setting Options Description Dropout* None Includes all color values in a monochrome scan Red Represents red areas as white in a monochrome scan Green Represents green areas as white in a monochrome scan Blue Represents blue areas as white in a monochrome scan None Selects no black and white scanning options Text Enhancement Technology Improves text recognition accuracy and removes the document background when performing OCR (Optical Character Recognition) scanning Auto Area Segment
Image Type setting Options Description Halftone** None Lets the data format of your image determine the tone Mode A (Hard tone) Converts the image into a hard toned distinct image of 1 and 2 bits/pixel/color Mode B (Soft tone) Converts the image into a softer tone for images with large areas of similar tones (1 bit/pixel/color) Mode C (Net screen) Represents images in net screen, similar to newspaper photographs (1 bit/pixel/color) Dither A (4 × 4 Bayer) Represents images in a 4 × 4 Bayer dither
Customizing Destination Settings You can change the settings for the predefined Destination options available in EPSON TWAIN Pro or add new options of your own. To customize a destination (output device) or create a new one, click the Destination button in the EPSON TWAIN Pro window. You see the Destination dialog box: To change the settings of one of the predefined destinations, select it from the Destination Name list, change the settings, and click Save.
The resolution and sharpness (–2 = most unfocused to 2 = sharpest) default settings for each of the predefined Destination options are listed in the table below: Destination options Default settings You can also select the Resolution setting from the list on the EPSON TWAIN Pro window. Resolution is closely related to the Target width and height and Scale settings. Keep in mind that changing one setting may affect the others.
Destination options Default settings Stylus COLOR Stylus COLOR II Resolution: 720 Drawing/Halftone, 240 Photo; Sharpness: +1 Stylus COLOR IIs (Windows) Stylus COLOR 200 (Windows) Stylus COLOR 300 (Windows) Stylus COLOR 400 (Windows) Stylus COLOR 500 Stylus COLOR 600 Stylus COLOR 800 Stylus COLOR 850 Stylus Pro XL Stylus Pro XL+ Stylus 1500 Stylus COLOR 1520 Stylus COLOR 3000 Stylus Pro 5000 Advanced Scanning Resolution: 720 Drawing/Halftone, 360 Photo; Sharpness: +1 Page 34
Destination options Default settings EPL-C8000 Resolution: 600 Drawing/Halftone, 200 Photo; Sharpness: +1 Inkjet Printer Resolution: 720 Drawing/Halftone, 360 Photo; Sharpness: +1 Laser Printer Resolution: 600 Drawing/Halftone, 200 Photo; Sharpness: +1 FAX Resolution: 200 Drawing/Halftone, 200 Photo; Sharpness: +1 OCR Resolution: 300 Drawing/Halftone, 300 Photo; Sharpness: 0 Adjusting Source and Target Image Sizes Sometimes the values you select may be rounded up or down to retain the proportions
The Target width and height fields indicate the size of your scanned image using the current settings. The values in these fields change as you modify settings. You can also type in a specific width and height to specify the target image size exactly. The Source and Target width and height, Scale, and Resolution settings are all closely related. Keep in mind that changing one setting may affect the others. The width and height settings are ignored if you scan without first previewing the image.
Scaling the Image The Scale field indicates the amount by which an image is enlarged or reduced during scanning. The Scale, Source, and Target width and height, and Resolution settings are all closely related. Keep in mind that changing one setting may affect the others. The range of the possible scale values depends on the Resolution setting. You can adjust the scale by moving the slider, clicking the left or right arrow, or typing a percentage in the Scale field.
Using Auto Locate Click the Auto Locate button in the Preview window to crop everything on the document table except your image. Auto Locate button If you want to scan part of an image, drag the mouse pointer to create a marquee around the area to be scanned. (It doesn’t have to be precise.) Then click the Auto Locate button. The marquee automatically adjusts to the area you defined.
Using Auto Exposure The Auto Exposure feature is automatically enabled after a full preview and zoom preview. If you have a Macintosh and you can’t click the Auto Exposure button or adjust Image Controls, click the Configuration button on the EPSON TWAIN Pro Main window to check the Color Sync setting. You can’t use these tools if Color Sync is selected. Advanced Scanning Click the Auto Exposure button on the Preview window to automatically adjust the image exposure.
Click the box: Image Controls button to display the Image Controls dialog The Auto Exposure feature overrides any Image Controls setting you select. If you have a Macintosh, you can’t adjust Image Controls if Color Sync is selected in the Configuration dialog box. eyedropper buttons setting fields and sliders To change the Image Controls, move the slider for the setting or click the left or right arrows. You can also type a value in the field on the right.
The Image Controls settings are described in the table below.
Using the Eyedropper Buttons The Highlight and Shadow settings include an eyedropper button you can use to select particular colors in the image for use as the highlight and shadow colors. Click an eyedropper button and move the mouse pointer over the preview image; the pointer changes to an eyedropper icon. Then click on a color that you want to use as the highlight (lightest color) or shadow (darkest color) for the entire image. The color box beneath the setting turns to that color.
Click the Tone Correction button on the Preview window to display the Tone Correction dialog box. tone curve output checkboxes and fields tone correction types list channels radio buttons Each point on the tone curve represents the Output checkbox characteristic to its right. For example, the top point on the curve represents the Highlight characteristic. In addition, the Channels radio buttons indicate the color(s) that the tone curve will modify: red, green, blue, or all three colors.
Once you’ve selected the color you want to modify using the Channels buttons, use these methods to change the tones: ◗ Drag points on the tone curve to adjust the tone value. ◗ Type a number in the field for an Output setting and click outside the Tone Correction dialog box. To lock a setting in place so it’s unaffected by changes in other settings, click its checkbox. The setting will not change unless you drag its point on the tone curve. ◗ Select a setting from the tone correction type list.
Using Color Adjustments You can adjust the Gray Balance Intensity and Saturation of colors in a color image using the Color Adjustment tools. The Color Adjustment settings are disabled if you click the Scan button without previewing the image. Click the Color Adjustment button on the Preview window to display the Color Adjustment dialog box: If the Pixel Depth in the Image Type dialog box is set to 8-bit Gray, 12-bit Gray, or Line Art, you cannot select the Color Adjustment button.
Changing the Gray Balance Intensity The Gray Balance Intensity setting adjusts the gray tones in the image to appear more neutral. You may need to adjust this setting if the three colors that are mixed together to form the neutral gray are unbalanced. To change the Gray Balance Intensity, follow these steps: 1 First click the eyedropper button and move the mouse pointer onto your preview image. The mouse pointer changes to an eyedropper icon.
Saving Custom Settings You can save a custom set of all the EPSON TWAIN Pro settings for your scan so you can easily select it when you perform a similar scan later. Click the Settings button in the EPSON TWAIN Pro window to display the Settings dialog box: current settings The currently selected EPSON TWAIN Pro settings are listed on the right. To save these settings, click Save (you can type a new name for the group to replace the name User Defined).
Configuring EPSON TWAIN Pro You can configure EPSON TWAIN Pro’s preview and color options so they work the way you want whenever you use the program. Click the Configuration button to display the Configuration dialog box: Macintosh Windows To specify the size of the Preview window, select Large, Medium, or Small in the Preview Window Size list.
To automatically adjust the exposure each time you preview the image, click the Auto Exposure on Preview button. See Using Auto Exposure for more information. If you have the Artist or Professional model of the scanner, use Monaco Profiler Lite to achieve better color management. See the electronic manual on your Monaco Profiler Lite CD-ROM for details.
Troubleshooting If you encounter any problems using EPSON TWAIN Pro, try the solutions in these sections: ◗ Problems Using EPSON TWAIN Pro ◗ Problems with Image Quality If the information here doesn’t help you solve the problem, check with your dealer or contact EPSON. See Where to Get Help for contact information. Problems Using EPSON TWAIN Pro The rows in the Screen Calibration dialog box never seem to match closely enough. Problem Solution Your monitor adjustments may be off.
When you select a TWAIN source, EPSON TWAIN Pro isn’t listed. Problem Solution Either EPSON TWAIN Pro wasn’t installed or it wasn’t installed correctly. Reinstall the software following the instructions in Setting Up and Using Your Scanner. EPSON TWAIN Pro doesn’t start. Problem Solution The scanner isn’t ready. Make sure your scanner is turned on and the cables are connected properly. Your system does not meet the minimum requirements.
Problem Solution A system error has occurred. An error condition may have caused your application or the TWAIN source to stop working correctly. Save any documents in process, close any open applications, and exit Windows. Restart Windows, then start your application and try again. Sometimes an error condition may cause the computer to display a message telling you that your scanner is not recognized. If this happens, reset your scanner by pushing the RESET button.
The scanner does not start scanning. Problem Solution The scanner isn’t ready. Check if the scanner’s READY light is on. If not, press the RESET button and try again. You have a system interrupt conflict (Windows). If you have other expansion cards in your computer, make sure they’re not set to the same interrupt level or I/O address as the interface card for your scanner. See your computer manual and interface card manual. Your INF file may not be loaded correctly (Windows).
You have trouble scanning multiple images. Problem Solution Your application program doesn’t support multiple image scanning. Some application programs don’t support scanning of multiple images. When you try to batch scan or use the optional auto document feeder with this type of program, you get an error message or the system locks up. Check the program documentation and, if necessary, use another program for batch scanning. You may not have enough system memory or hard disk space.
You cannot scan images at all or only a few dots appear in the scanned image. Problem Solution You may have selected incorrect scan settings. Select different EPSON TWAIN Pro settings. You may have selected an incorrect Image Type or Destination setting, or the Exposure, Highlight, and Tone Correction settings may be inappropriate for your image. If Image Type is set to Line Art, try decreasing the Threshold setting. Problems with Image Quality Images are very dark and without details.
The entire image is distorted or blurred. Problem Solution The document isn’t positioned correctly on the scanner’s document table. Make sure that the document is placed flat against the document table. You may have moved the document during scanning. Check the position of the document. See that the scanner is not tilted or placed on an unstable surface. Part of the image is distorted or blurred. Problem Solution The document isn’t positioned correctly on the scanner’s document table.
Color is patchy or distorted at the edges of the document. Problem Solution The document isn’t positioned correctly on the scanner’s document table. If the original is very thick or warped at the edges, the edges of the image may be discolored. Cover the edges of the original with opaque paper to avoid interference from outside light. If part of the original is outside the document table, the edge may be discolored. Change the position of the original. The image is faint or out of focus.
A line of dots is always missing on the scanned image. Problem Solution Your print heads are dirty. If this happens only on your printed image, your printer’s print head may need cleaning; see your printer manual. Your scanner may be malfunctioning. If this happens on both your screen and printout, the scanner’s sensor may be malfunctioning. Consult your dealer. The colors on the monitor seem different from those of the original image. Problem Solution Your monitor may not be calibrated correctly.
Printed colors are different from those in the original image. Problem Solution You may need to use a color correction mode. Colors in the printed image may not match the colors of the original image exactly because the scanning and printing processes use different color interpreting technologies. Use the ICM (Windows) or ColorSync (Macintosh) features in EPSON TWAIN Pro to more closely match the colors. (See Configuring EPSON TWAIN Pro for instructions.
The colors of the preview for your negative film image look strange. Problem Solution The wrong Document Source setting is selected. Make sure you select TPU for Neg. Film as the Document Source setting. The film guide or slide transparency guide affects the exposure of the scanning area. The scanner software perceives the dark film guide frame as white, which alters the exposure of the scanning area and causes the scan to appear darker.
Moiré (crosshatch) patterns appear in the scanned image. Problem Solution You have scanned a document with halftone patterns. To minimize moiré patterns, try the following: Troubleshooting ◗ Place a transparent sheet between the document and the document table to unfocus the image slightly. ◗ Move or angle the document slightly. ◗ Adjust the Sharpness setting to a lower value to unfocus the image. See Customizing Destination Settings for more information. ◗ Change the Scale setting slightly.
Glossary 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 that indicates the number of bits allocated for a pixel. The larger the value, the more detail a pixel can represent. color correction A method of adjusting the color image data for a particular type of device so that the reproduction results come close to the original colors.
marquee monochrome pixel Glossary A sizeable and moveable frame on a preview image that identifies the part selected for scanning. Black and white images, or images represented only by the intensity of luminosity. Short for picture element. Every image is composed of a number of pixels. Pixels are also counted in units of dots. resolution Indication of how finely an image is resolved into pixels. Measured in dots per inch (dpi), pixels per inch (ppi), or samples per inch (spi).
Index A Accessories, EPSON, 12 Auto Area Segmentation, 6 Auto document feeder ordering, 12 settings, 15 Auto Exposure, 39, 40, 49 Auto Locate, 38 Automatic adjustment features, using, 37 to 39 B Batch scanning, 26, 38, 54 Blurred image, 56 C Calibration problems, 50, 57 to 58 Color buttons, 42 Color Adjustment settings, 45 to 46 correction options, 59 managing, 49 problems, 57 to 60 Index ColorSync, 49 CompuServe, 10 Configuration settings, 48 to 49 Contrast, adjusting, 41, 42 Custom settings, saving, 2
F M Faint image, 57 FaxAdvice, EPSON, 11 Features, 6 FTP site, 10 Macintosh system requirements, 8 Main window, 14 Manual, how to use, 9 Marquees creating automatically, 38 creating manually, 22 to 23 deleting, 26 duplicating, 26 moving, 24 multiple, 25 to 26 resizing, 23 to 24 using, 22 to 26 Memory problems, 51, 53 to 54 Moiré patterns, 61 Monitor Macintosh, 8 Windows, 7 G Gamma setting, 41 Gray Balance Intensity setting, 45 to 46 H Halftone setting, 31 Help, EPSON, 10 to 12 Highlight, adjusting, 41
P S Photoshop problems, 53 Pixel Depth setting, 29, 31, 41, 45 Previewing configuration options, 48 to 49 images, 21 to 26 zooming options, 22, 59 Printer problems, 59, 60 Problems batch scanning, 54 blurred image, 56 color matching, 58 to 59 faint or out of focus image, 57 image quality, 55 to 61 line of dots is missing, 58 scanner does not start, 53 screen calibration, 50 using TWAIN Pro, 50 to 55 Saturation setting, 45, 46 Scale settings, 19, 33, 36, 37 Scanning advanced, 27 to 49 basic, 13 to 20 from
Size, adjusting image, 35 to 37 Software installation problems, 51, 60 SoundAdvice, EPSON, 11 Source settings, 35 to 37 Support, 10 to 12 System interrupt conflicts, 53 System requirements Macintosh, 8 Windows, 7 T Target settings, 17 to 19, 32 to 37 Technical support numbers, 10 to 12 Text Enhancement Technology, 6 Threshold setting, 41 Tone Correction settings customizing, 44 problems, 55 using, 42 to 44 Index Transparency unit ordering, 12 scanning reflective documents, 15 settings, 15 Troubleshooting
