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B-8

Expression 636 Scanner Settings

❏

Halftoning 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)

❏

Halftoning mode B

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)

❏

Halftoning mode C

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)

Halftoning mode A

Halftoning mode B

Halftoning mode C

None

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Summary of Contents for ActionScanner II

Page 1: ...i Printed on recycled paper with at least 10 post consumer content ...

Page 2: ...urred 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 shall 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...

Page 3: ... Scanner 2 1 Performing Screen Calibration 2 2 Enabling Screen Calibration 2 3 Calibrating Your Printer to Your Scanner 2 4 Performing the Printer Calibration 2 4 Scanning Using Calibration 2 7 Chapter 3 Capturing Images From Within Applications Accessing EPSON TWAIN 3 2 Using the Easy Screen 3 4 Selecting the Document Source 3 5 Selecting the Image Type 3 5 Selecting the Destination 3 6 Using the...

Page 4: ...sing Auto Locate 4 11 Chapter 5 Using EPSON Scan II Saving a Scanned Image 5 1 Exporting an Image 5 2 Acquiring and Exporting an Image 5 4 Copying an Image 5 6 Resizing an Image 5 6 Exiting EPSON Scan II 5 7 Chapter 6 Troubleshooting Problems Using the EPSON Scanning Utilities 6 1 Problems With Image Quality 6 9 Appendix A Default Settings Appendix B Expression 636 Scanner Settings Resolution B 2 ...

Page 5: ...v Scanner Setting Guidelines B 12 Judging Image Quality B 18 Equipment B 19 Icon Glossary Term Glossary Index ...

Page 6: ...vi ...

Page 7: ...om within your application Automatically locate expose and scan an image Adjust individual settings and preview the effects before you scan Choose single or triple pass scanning Save and reuse scanning settings that work well in your environment Use the automatic area segmentation and text enhancement technology features built into some EPSON scanners Scan transparencies and slides and scan negati...

Page 8: ...your scanner with your monitor and color printer to produce images whose colors match the originals It can also capture images and then save and export them in a variety of file formats EPSON TWAIN is the interface between most of your software and your scanner The interface has two screens easy and advanced To take advantage of your scanner s features you can access either screen from within any ...

Page 9: ...tricted for some scanners A 486 based or higher IBM compatible computer or an IBM PS 2 DOS 5 0 or higher Microsoft Windows 95 Windows 3 1x Windows for Workgroups 3 1x or Windows NT 3 5x or higher Note To use 32 bit scanning features your system must be running Windows 95 or Windows NT A bidirectional parallel interface either the standard bidirectional parallel interface or a PS 2 standard printer...

Page 10: ... and use the EPSON Scanning Utilities with your EPSON scanner Chapter 1 describes installing your EPSON Scanning Utilities software Be sure to read this first Chapter 2 describes how to calibrate your system Chapter 3 provides basic information on how to scan from within your application Chapter 4 describes using the special effects features of your software Chapter 5 tells you how to use EPSON Sc...

Page 11: ...vice through a network of Authorized EPSON Customer Care Centers Dial 800 922 8911 for the nearest location or the following services Fax on Demand access to EPSON s technical information library Literature on current and new products The location of your nearest Authorized EPSON Reseller or Customer Care Center Technical information on installation configuration and operation of EPSON products Cu...

Page 12: ...le files application notes and EPSON product bulletins 24 hours a day 7 days a week using a modem and one of the online services below 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 ...

Page 13: ...use Fax on Demand EPSON Forum on CompuServe Members of CompuServe can type GO EPSON at the menu prompt to reach CompuServe s Epson America Forum As an owner of an EPSON product you are eligible for a free introductory CompuServe membership which entitles you to an introductory credit and your own user ID and password To take advantage of this offer in the U S or Canada call 800 848 8199 and ask fo...

Page 14: ...8 Introduction ...

Page 15: ...must install the EPSON Scanning Utilities as described in the next section before you use your scanner It is also best to install the EPSON Scanning Utilities before you install your application software Check that you have the two 3 5 inch diskettes that come with the scanner and contain the EPSON Scanning Utilities EPSON Scan II EPSON TWAIN the calibration utilities and other related files It is...

Page 16: ...ur operating system and installs 32 bit or 16 bit files as necessary Note For Windows NT 4 X follow the Windows 95 instructions For Windows NT 3 5X and Windows for Workgroups follow the Windows 3 1 instructions 1 Start Windows 95 or Windows 3 1 Note for Windows 95 SCSI users After you connect your scanner to your computer you see the screen below when you install or start Windows 95 or when you se...

Page 17: ... 4 Type A SETUP or B SETUP if you inserted the diskette in drive B and click OK After a few moments you see the initial setup screen 5 Click OK to continue A dialog box displays the path in which the installer software will install the EPSON Scan II program The default path is C EPSCAN32 for Windows 95 or C EPSCAN2 for Windows 3 1 6 Click OK to accept the default pathname or enter a new path and c...

Page 18: ...ng If the scanner is connected to a SCSI interface the port ID is selected automatically If the scanner is connected to a parallel interface select the port ID of the interface port 378 is your computer s built in parallel port lpt1 and port 278 is the port on a bidirectional parallel card installed in your computer lpt2 Note If you selected SCSI from the Interface menu and no SCSI ID number appea...

Page 19: ...to close the EPSON Scanner Setup dialog box 14 Remove the EPSON Scan II program diskette from the drive 15 If you are using Windows 3 1 exit Windows and then restart it The installer creates an EPSON Scanner program group or folder in Windows Before you can acquire an image from within your application for the first time you need to select EPSON Scanners as your TWAIN data source see your applicat...

Page 20: ...1 6 Installing Your Software ...

Page 21: ...ubtractive color process When you print a scanned image the image goes through both the additive and subtractive interpretive processes to acquire color the first when it is scanned and the second when it is printed on your color printer As a result the printed colors may not match the colors in the original Calibration allows you to fine tune your scanner monitor and printer to produce colors tha...

Page 22: ...nager double click the EPSON Screen Calibration icon in the EPSON Scanner program group You see this screen 2 Look at the display from a distance and adjust the slide bar until the separate rows have the same basic color intensity r Tip If the rows don t look the same after you adjust the slide bar increase the number of colors your monitor displays using Windows 95 Display or Windows 3 1 Setup Se...

Page 23: ... choose Acquire You see the TWAIN screen If the screen is fairly small and has an Advanced button it is the easy screen pictured on page 3 3 Click Advanced to switch to the advanced screen If the screen is large and has a Configuration button it is the advanced screen pictured on page 3 3 3 Click Configuration to open the Configuration dialog box 4 Make sure the Enable Screen Calibration checkbox ...

Page 24: ... COLOR 200 EPSON Stylus Pro EPSON Stylus Pro XL For these printers you simply select the correct printer calibration profile before you scan an image See Scanning Using Calibration on page 2 7 If you have a color printer that is not a color EPSON Stylus you must create a printer calibration profile using the instructions in this section It is also best to create additional profiles for different p...

Page 25: ...e same printer click the Skip button Note To print images on more than one color printer print a calibration chart on each printer you ll use If you plan to print the image on a service bureau s color printer have them print the calibration chart on their printer so you can create a calibration profile for it r Tip When you label the printed charts to help you identify which printer produced them ...

Page 26: ... table Then close the scanner s cover Note Make sure the calibration chart is not skewed on the bed of the scanner if it is the scanner cannot scan the chart 6 If you want to change the default filename and profile description enter your changes in the File Name and Description fields r Tip If you are creating more than one calibration profile for instance if you have more than one color printer m...

Page 27: ... have created a custom calibration profile for your printer you can now use that profile to scan and print your image Follow these steps to use a calibration profile when you scan 1 Select your scanner For example choose Acquire from the File menu within your application and choose Select TWAIN_32 Source in Windows 95 or Select TWAIN Source in Windows 3 1 Then select EPSON Scanners 32 bit in Windo...

Page 28: ...p 8 If you created a custom calibration profile for your printer type a unique name for the profile in the Destination Name field Go to step 6 6 From the Calibration pull down menu select the profile name you assigned when you created the profile 7 Click Save 8 Click OK You see the EPSON TWAIN advanced screen You can now preview or scan your image using the calibration profile for your color print...

Page 29: ... advanced screen only 6 Scan the image 7 Close TWAIN and edit the image in your application This chapter provides guidelines for performing each of these basic steps If you don t need to preview the image you are scanning and want to specify only the document source if available image type and destination you can use the easy screen see page 3 4 To set the image resolution size or scale preview th...

Page 30: ...ware may not be able to detect the scanner 2 Select your scanner For example choose Acquire from the File menu within your application and choose Select TWAIN_32 Source in Windows 95 or Select TWAIN Source in Windows 3 1 Then select EPSON Scanners 32 bit in Windows 95 or EPSON Scanners in Windows 3 1 Note You usually need to perform this step only once when you use the scanner with your software f...

Page 31: ...mage is captured and scanned The advanced screen lets you select the same basic settings as the easy screen plus you can modify add to or delete these settings The advanced screen also lets you set the image resolution size or scale preview your image and select the portion of it you want to scan As described in Chapter 4 you can change special effects settings from the advanced screen as well ...

Page 32: ...g the Easy Screen The following basic settings are available on the TWAIN easy screen Document source Image type Destination You must select the appropriate option for each of these settings as described in this section to successfully scan your image Then see Scanning the Image on page 3 20 to scan your image ...

Page 33: ...asy and advanced screens contain checkboxes for selecting one page or all pages in a document Selecting the Image Type To scan images with satisfactory results you must select the correct image type option from the Image Type pull down menu The following options are available Color Photo Color Drawing 256 Colors Black White Halftone Black White Photo Line Art Color Halftone OCR Copy Fax Document S...

Page 34: ...lay or print the scanned image You can select one of the following options from the Destination pull down menu General Stylus COLOR Screen Stylus Pro XL Impact Dot Printer Stylus Pro Thermal Printer Stylus COLOR II Inkjet Printer Stylus COLOR IIs Laser Printer Stylus 1500 Laser 600dpi Stylus COLOR 500 Fax Stylus COLOR 200 OCR Calibration Profile If you haven t changed any of the settings for these...

Page 35: ... and alter it before you scan Note For information about using the basic settings see Using the Easy Screen on page 3 4 To access the advanced screen click the Advanced button on the easy screen if necessary Then see the sections below to modify settings work with calibration profiles or preview your image Note Some options on the advanced screen may be dimmed and cannot be selected because of the...

Page 36: ...3 8 Capturing Images From Within Applications You see the Image Type dialog box For the default settings for the predefined image types see Appendix A ...

Page 37: ...color to produce images in 8 colors 256 Color Uses a data format of 8 bits pixel color to produce images in 256 colors 16 Million Colors Uses a data format of 8 bits pixel color to produce images in 16 million colors Halftone None Determines tones based on data format Mode A Converts image into a hard tone to produce a distinct image 1 and 2 bits pixel color Mode B Converts image into a softer ton...

Page 38: ...out blues so blue areas are white in a monochrome scan Quality descreening Draft fast Provides faster scanning at a lower resolution Best de screening Produces the best quality scan and on some scanners removes unwanted moiré interference patterns from scanned images Scanning Sequence 1 pass Scans the image with a single pass line sequence 3 pass Scans the image with three passes page sequence ava...

Page 39: ...does not use the Calibration Color Filter or Saturation features in TWAIN see Chapter 4 for more information Pixel Depth option selection matrix Pixel Depth Halftone Dropout Scanning Sequence Black White None Mode A Hard tone Mode B Soft tone Mode C Net Screen Dither A 4 4 Bayer Dither B 4 4 Spiral Dither C 4 4 Net Screen Dither D 8 8 Net Screen None Red Green Blue 1 pass 16 Gray None None Red Gre...

Page 40: ...from the Image Type Name field and type a new name Change the displayed Image Type settings as necessary Click Save and then click OK Note If you don t click Save before you click OK the image type settings are not changed To delete an existing image type select it from the Image Type Name menu and click Delete then click OK Modifying the Destination The Destination dialog box allows you to define...

Page 41: ...ngs for the predefined destination output devices see Appendix A Selecting resolution settings Use the Resolution pull down menus to select scanning resolutions that produce the best results for your image type and output device In the Destination dialog box you can select one resolution for line drawings and halftones and a separate resolution for photographs Note You can also select a resolution...

Page 42: ...ings described in this chapter If you change them arbitrarily the resulting image may not be what you expected The higher the resolution you select the larger the resulting image file For example an 8 5 11 photograph scanned at 300 dpi can produce a 24MB file The same photograph scanned at 72 dpi creates only a 1 36MB file Large files take longer to process and print so consider the limitations of...

Page 43: ...ution For example if your lpi is 150 try scanning at 300 dpi If the file size is too large multiply the lpi by 1 5 to determine the scanning resolution r Tip If you plan to enlarge an image when you print it scan it at a higher resolution than you normally would Selecting a calibration profile Use the Calibration pull down menu to select a predefined or custom calibration profile that matches your...

Page 44: ...select it from the Destination Name menu and change the necessary settings Click Save and then click OK To add a new Destination select an existing one with similar settings to the one you want to create Then delete the existing name from the Destination Name field and type a new name Change the displayed Destination settings and click Save then click OK Note If you don t click Save before you cli...

Page 45: ...iew area If you click the Zoom Preview icon before you select an area the preview includes the entire document table Note You cannot preview an image that exceeds available memory or disk space r Tip If you cannot see the image clearly after you preview it change your video display settings in Windows 95 Display or Windows 3 1 Setup to a lower resolution with more colors Then perform a screen cali...

Page 46: ...lection rectangle to the new location Click the preview image to cancel the selection Double click the image to select the entire image If your image is smaller than the document table you can click the Auto Locate icon to select the entire image and crop out everything on the document table except the image See Using Automatic Features in Chapter 4 for more information about using the Auto Locate...

Page 47: ...e actual size of the image may be larger than the value displayed in the Target field The image size settings are closely related to the Resolution and Scale settings If you change them arbitrarily the resulting image may not be what you expected Setting the image scale The Scale value in the Target area displays the amount by which an image is enlarged or reduced during a scan To change this valu...

Page 48: ...When you are finished selecting settings on the easy or advanced screen you can scan the image by choosing the Scan button If you click Scan from the easy screen TWAIN automatically selects the entire image adjusts the exposure and scans it If you are using the advanced screen you can check that the image you are scanning looks just right in the preview window before you click the Scan button If y...

Page 49: ...when scanning text use EPSON s Text Enhancement Technology This feature filters out background noise in text images such as background colors and increases the threshold levels so that your OCR optical character recognition software can recognize text more easily If your scanner supports Text Enhancement Technology select OCR from the Image Type Name menu This automatically activates the Text Enha...

Page 50: ...3 22 Capturing Images From Within Applications ...

Page 51: ... image editing software you can achieve all of the special effects described in this chapter and more using that software However if you don t have image editing software EPSON TWAIN allows you to create a broad range of special effects using these options TWAIN configuration Image controls Tone correction Color adjustments Invert image feature Automatic features ...

Page 52: ...nced screen select the Save Preview Image and Settings option Use the Number of comparison samples pull down menu to select the number of samples either 3 or 5 to display in the preview area when you select the Comparison icon for any of the special effects features described in this chapter Comparison samples let you select the image you prefer from a group of preview images that use different se...

Page 53: ...change to either black or white This option is available only when the Pixel Depth setting is Black White and the Halftone setting is None in the Image Type dialog box When Threshold is available the other image control settings are not available Follow these steps to use the image controls 1 From the advanced screen click the Preview icon to display your image in the preview window r Tip To scan ...

Page 54: ...4 4 Using Special Effects 2 Click the Image Controls icon You see the following dialog box Comparison icons Color buttons Slide bars ...

Page 55: ...ou want for the current option Slide bars Move the slide bar until the preview looks correct Comparison icons Click the Comparison icon next to the slide bar to display 3 or 5 comparison samples using different settings In the preview window click the sample that most closely reflects the image you want That sample is selected and placed in the middle position and a different set of samples is dis...

Page 56: ...greater detail To adjust the tone correction click the Tone Correction icon from the advanced screen when the preview window displays your image You see the following dialog box You can adjust the tone values by dragging points on the tone curve You see the effect of your new settings in the preview window Using the Channels radio buttons select the color s you want to modify the tone correction f...

Page 57: ...re use by choosing the Save button You see the following dialog box To save your tone correction setting type the name you want to assign to the setting in the Tone Correction Name field and click Save Then click OK The name for your new setting is now available in the pull down menu You can also delete an existing setting by selecting it from the Tone Correction Name field and clicking Delete The...

Page 58: ...isset forgrayscaleorblack and white images theColor Adjustment icon is dimmed and cannot be selected The Color Adjustment dialog box lets you change the following settings Gray Balance Intensity Saturation Color Filter You can reset any preview image you ve modified by choosing the Reset button below the Color Adjustment icon on the advanced screen Comparison icons ...

Page 59: ...e bar to choose the coloring you want from the comparison samples The rectangle to the right of the Color button shows the result of your color adjustment Changing Saturations Changing the saturation level of a color increases or decreases the amount of color in a specific hue Less saturated colors are more pale while saturated colors are richer You can change the saturation levels in the preview ...

Page 60: ...in the values you want for the other two colors Click the Comparison icon for Color Filter to select the color filter you want from the comparison samples Note The Color Filter setting is ignored if 3 pass is selected as the Scanning Sequence in the Image Type dialog box Inverting an Image The Invert icon creates a negative of an image You can use this icon to turn a positive image into a negative...

Page 61: ...s in effect Using Auto Exposure After you preview an image click the Auto Exposure icon to automatically adjust the exposure of the image and the Highlight and Shadow settings in the Image Controls dialog box Using Auto Locate After you preview an image click the Auto Locate icon to crop out everything on the document table except the image If a document contains more than one image use the mouse ...

Page 62: ...4 12 Using Special Effects ...

Page 63: ...e clipboard and resize the displayed image for easier viewing 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 1 Turn on your scanner and place a document on the scanner s document table Note If you start thesoftwarebefore turning on your scanner the sof...

Page 64: ...I file format You can now open this file in EPSON Scan II and export it in a different format as described below 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 cannot open images saved in the EPSON Scan II file format and ...

Page 65: ...image in the File Name field 4 You can choose one of these formats from the File Format pull down menu DIB EPSF TIFF5 0 TIFF6 0 JPEG and PCX For a description of these file formats see the Term Glossary Note You can select the TIFF6 0 or JPEG format only if you selected 16 Million Colors or 256 Gray for the Pixel Depth setting in the Image Type dialog box when you scanned the image You cannot sele...

Page 66: ...ow import this file into your application software see your software manual for instructions 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 after it is exported ...

Page 67: ...ormats see the Term Glossary Note You can select the TIFF6 0 or JPEG format only if you selected 16 Million Colors or 256 Gray for the Pixel Depth setting in the Image Type dialog box when you scanned the image You cannot select the PCX format if you selected 16 Million Colors 7 If you selected the TIFF6 0 or JPEG format EPSON Scan II allows you to choose the image quality Since JPEG uses a Lossy ...

Page 68: ... defining it with the mouse or by choosing Select All from the Edit menu 2 Choose Copy from the Edit menu You can now paste the copied image into other software Note The clipboard holds images in DIB format Resizing an Image Choose All Dots 1 1 from the View menu to display a scanned image so that each pixel corresponds to one display dot on the screen The higher the image resolution the larger th...

Page 69: ...Using EPSON Scan II 5 7 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 ...

Page 70: ...5 8 Using EPSON Scan II ...

Page 71: ...a TWAIN data source EPSON Scanners is not listed Either the EPSON Scanning Utilities were not installed or they were not installed correctly Reinstall the EPSON Scanning Utilities see Chapter 1 for instructions Nothing happens when you select Acquire Make sure your scanner is turned on and the cables are connected properly EPSON Scanners may not be selected as the TWAIN data source in your applica...

Page 72: ...hat does not support EZ SCSI The EPSON Scanning Utilities supports only SCSI host adapter interface cards that support EZ SCSI or are Adaptec compatible An error condition may have caused your application or the TWAIN data source in the EPSON Scanning Utilities to stop working correctly Save any documents in process close any open applications and exit Windows Restart Windows to restore the TWAIN ...

Page 73: ...system with the minimum requirements for the EPSON Scanning Utilities See the Introduction in this manual Check that the system requirements are correct for your application software and that your software supports your scanner model Be sure that you have correctly installed and set up your application software See if your computer has enough memory to run your software If you are running other so...

Page 74: ...r see that they are not set at the same interrupt level or I O address as the interface card for your scanner See your computer manual and interface card manual After choosing the Preview icon the image does not appear in the preview window Press Enter or click on the TWAIN preview window The scan is not the full width you selected in the preview area Some scanners for example the EPSON ES 600C re...

Page 75: ... out in the Image Controls dialog box Your scanner does not support the Sharpness feature The Document Source setting is grayed out in the EPSON TWAIN screen This is normal You must first connect an optional automatic document feeder or transparency unit to the scanner for any Document Source option other than Flatbed The Preview button is grayed out when the Automatic Document Feeder is selected ...

Page 76: ...creen Some applications misinterpret the scanner data check with your application s manufacturer for an updated program version The default settings for Image Type and Destination don t meet your specific scanning requirements You can define your own settings see Chapter 3 of this manual The Halftone setting in the Image Type dialog box is grayed out Halftone settings on most EPSON scanners are av...

Page 77: ... and at the maximum allowable width and using the Color Photo Image Type setting restart Windows and reduce the resolution and the width of the scanned image Then try scanning again If your application contains a scan manager feature you may have closed it before closing the EPSON TWAIN screen Scan your image again but close the TWAIN screen before closing your application s scan manager If you se...

Page 78: ...f colors Increase the number of colors or decrease the resolution your monitor displays using Windows 95 Display or Windows 3 1 Setup You may be using an outdated video display driver Check with your computer manufacturer for an updated driver After changing video display resolutions the computer display seems smaller or different You need to adjust your monitor see the manual that came with it Af...

Page 79: ... does not scan the image correctly Scan the whole image instead of a portion of it After changing the Windows video display setting to 1024 768 pixels some icons boxes or slide bars in the TWAIN screen look out of proportion Reset your Windows video display to 800 600 pixels Problems With Image Quality The entire image is distorted or blurred Make sure that the document is placed flat against the ...

Page 80: ...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 not be in contact with the document table and may be discolored Change the position of the original The image is faint or out of focus Make sure the...

Page 81: ...Straight lines in the image are jagged The document may be placed at an angle on the document table Position it so that the horizontal and vertical lines are carefully aligned with the rulers on the document table The image does not look the same as the original Make sure you have performed the calibration procedures and selected the correct printer profile see Chapter 2 for more information Try d...

Page 82: ... have another EPSON scanner for examples of halftoning The colors on the video display seem different from those of the original image Depending on your monitor its resolution color settings and your EPSON TWAIN settings the screen colors may be different from the original colors This may be normal especially if the colors in the printed image more closely match the original Make sure you have cor...

Page 83: ... and printing processes use two different color interpreting technologies The printed image is larger or smaller than the size of the original Check the image size settings in your application and TWAIN You may also have used the Zoom Preview icon Do not use the size of the image on your monitor to judge the printed size The printer cannot print the image the printout is garbled or the printout is...

Page 84: ...easing the Threshold setting to a higher value Moiré interference patterns appear in the scanned image Moiré patterns commonly occur when you scan images that include halftone screens To minimize this effect try any of the following solutions Move or angle the original slightly Change the Sharpness setting to slightly defocus the image Place a transparent sheet between the document and the documen...

Page 85: ...in Select 16 Million Colors for Pixel Depth and try scanning again The image looks corrupted Check your printer driver settings If the paper size is set larger than Letter or A4 select a smaller paper size or the maximum paper size your scanner can support See your scanner documentation for more information You may need to choose a lower resolution for the video display setting using Windows 95 Di...

Page 86: ... the transparency unit and slide the mat up and out of the slots on the transparency unit The transparency unit is installed you are scanning a normal reflective paper document and the scanned image is a picture of the document table The reflective document mat is not in place lift up the transparency unit and insert the reflective document mat See your scanner manual for instructions ...

Page 87: ... Black White Halftone Black and white Mode A Hard tone halftone draft quality and 1 pass scanning Line Art Black and white draft quality and 1 pass scanning OCR Black and white draft quality 1 pass scanning and Text Enhancement Technology Copy Fax Black and white Mode A Hard tone halftone draft quality 1 pass scanning and Auto Area Segmentation Default Destination settings Destination Default sett...

Page 88: ...neral calibration Stylus COLOR 800 dpi resolution for line drawings and halftone images 240 dpi resolution for photos and calibration for EPSON Stylus COLOR printers Stylus Pro XL 800 dpi resolution for line drawings and halftone images 240 dpi resolution for photos and calibration for EPSON Stylus Pro XL printers Stylus Pro 800 dpi resolution for line drawings and halftone images 240 dpi resoluti...

Page 89: ...tion for Stylus COLOR 200 printers Calibration Profile 180 dpi resolution for line drawings halftone images and photos with general calibration Image Control setting ranges Image control Range of settings available Exposure 10 darkest to 20 brightest Gamma 50 lowest to 300 highest Highlight 60 darkest to 980 lightest Shadow 0 lightest to 50 darkest Sharpness 2 least focused to 2 sharpest Threshold...

Page 90: ...A 4 Default Settings ...

Page 91: ...are controlled from your scanner software Scanner functions and settings Function Available settings Resolution 29 settings from 50 to 2400 dpi hardware only Software interpolates to 4800 Scale 50 to 200 in 1 steps Data format 1 to 8 bits pixel color Captures up to 12 bits pixel color When it captures over 8 bits it converts the information to 8 bits pixel color Color mode Color line sequence mode...

Page 92: ...llow 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 starting on page B 13 Size or Scale The size or scale function allows you to reduce or enlarge the ...

Page 93: ... 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 bi level 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 01 10 and 11 Using 8 bits pixel corresponds to 256 shades o...

Page 94: ...ome 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 Data format Monochrome Color 1 bit pixel color 2 grays 8 colors 2 bits pixel color 4 grays 64 colors 3 bits pixel color 8 grays 512 colors 4 bits pixel color 16 gr...

Page 95: ...ombined 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 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 you can specify a dropout color green red or blue Light...

Page 96: ...n as it is read the color correction function can be used Monochrome reading standard The scanner scans the same way as in the color line sequence reading until information is stored into image memory Then the scanner makes the monochrome image data from three primary color image data by using the control circuitry Dropout colors monochrome reading only The dropout color is the color you tell the ...

Page 97: ...er printer 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 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 da...

Page 98: ...ith 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 Halftoning mode C 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 Halftoning mode A Ha...

Page 99: ... is expressed in 4 by 4 net screen dither pattern Dither pattern D Halftone is expressed in 8 by 8 net screen dither pattern Note Changing the size of a halftone processed image with your application software may degrade the image Instead use the scanner s scale function at the time of scanning to select your desired image size Dither pattern A Dither pattern B Dither pattern C Dither pattern D ...

Page 100: ...he graph that shows the ratio as shown below 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 1 bit pixel color fo...

Page 101: ...uch 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 ...

Page 102: ... for the characteristics of thermal transfer color printers Inkjet printers This setting compensates colors for the characteristics of inkjet color printers 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 supp...

Page 103: ...graphs 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 of halftoning conflicts Use photog...

Page 104: ...led 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 compan...

Page 105: ... mean large files An A4 or letter size full color scan at 300 dpi uses as much as 25 megabytes MB of disk space 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 re...

Page 106: ... resolution for high quality image printing Do not confuse it with dots per inch which is not an equivalent measurement 2 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 2 175 350 For even smaller file sizes try scanning at about 1 5 times the lines per inch This may ca...

Page 107: ...se its size with this setting If you are not sure how large you want the printed image choose the largest size you might use You can 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 of the image when you print it Halftoning and Dropout Fo...

Page 108: ...e that you will use This will make your image file smaller Judging Image 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...

Page 109: ...sk than you have used previously Accelerator boards and CPU upgrades 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 or upgrade your CPU Video cards A video card that is sufficient for text may not be good enough for displaying graphic images especially in color If all...

Page 110: ...ssion 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 ...

Page 111: ...mples is displayed based on the image you selected You can keep selecting the image you like best until you are satisfied with the one in the middle Then double click it and it reappears alone See Modifying the TWAIN Configuration in Chapter 4 for more information about displaying comparison samples TWAIN Advanced Screen Icons Preview Shows you your entire image before you scan it Once an image is...

Page 112: ...eflect the tones in the original and bring out the details in shadow areas Color Adjustment Opens the Color Adjustment dialog box which lets you adjust colors in an image using the options described Color Adjustment Icons on page 4 of this glossary Invert Changes negative images into positive images or positive images into negative images Auto Exposure Automatically sets the Highlight and Shadow s...

Page 113: ...ow Comparison Allows you to compare three or five image samples of varying shadow intensity or color The middle sample reflects the current shadow setting Sharpness Comparison Allows you to compare three or five image samples of varying sharpness The middle sample reflects the current sharpness setting Threshold Comparison Allows you to compare three or five image samples with different points at ...

Page 114: ... Allows you to compare three or five image samples of varying color saturations so you can select the paleness or richness of a color in an image Three pass scanning ignores saturation settings Color Filter Comparison Allows you to compare three or five image samples of varying colors so you can select the specific color effect you want in an image Three pass scanning ignores color filter settings...

Page 115: ...Automatic Document Feeder A scanner accessory that automatically feeds a stack of paper into the scanner Best de screening An EPSON TWAIN setting that produces the best quality scan and on some scanners removes unwanted moire patterns from scanned images Bi level Data Image data that is composed of 1 bit pixel A pixel is represented by a single bit of digital data that can express only 1 light or ...

Page 116: ... the scanner that contains the optical sensor and light source for scanning Color Correction A method of adjusting the color image data for a particular type of device so that the reproduction results are close to the original colors Color Filter An EPSON TWAIN option that lets you modify the color of an entire image Color Separation A process to convert full color images into a limited number of ...

Page 117: ...ining instructions that allow your computer to recognize and control a device such as a monitor printer or scanner DIB Device Independent Bitmap A graphics file format for Windows version 3 0 or later Four bit pixel images can be exported with RLE4 compression and 8 bit pixel images can be exported with RLE8 compression Dithering A process in which software or an output device simulates continuous...

Page 118: ... which a graphic image is stored on the disk Gamma An EPSON TWAIN option that sets the gradation between highlights and shadows in an image Gray Balance An EPSON TWAIN option that lets you adjust the grayness of any area of an image You can remove color casts and discoloration to make the grays in an image more neutral Grayscale The measure of grayness of any area of an image When an image is scan...

Page 119: ...ou can also define your own image type settings Imagesetter 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 Impact Printer A printer that transfers ink onto the paper by striking the inked ribbon with a number of small pins Ink Jet Printer A printer that transfers ink onto the p...

Page 120: ...led in an application after it has been scanned Monochrome Black and white images or images represented only by the intensity of luminosity Page Sequence A type of color scanning in which the entire image is scanned once for each separation color The carriage makes three passes Path The directory and subdirectories you specify to locate a file For example the path for the TWAIN directory in Window...

Page 121: ...rated colors tend to be rich and vibrant Scaling Reducing or increasing the size of an image Scan An operation performed by the sensor and the carriage of a scanner Scanning divides the image into pixels Scanning Area The physical size of the image that can be scanned by the scanner SCSI Small Computer System Interface EPSON scanners may use the Adaptec AHA 1510 SCSI host adapter card or any other...

Page 122: ...SON TWAIN option that sets the point at which gray values are changed to either black or white TIFF5 0 Tagged Image File Format version 5 0 TIFF is an industry standard file format supported by many applications Black and white images can be exported with G3 compression TIFF6 0 JPEG Tagged Image File Format version 6 0 with JPEG compression TIFF and JPEG are industry standard file formats supporte...

Page 123: ... allows the scanner to use materials such as transparencies and slides TWAIN An open industry interface allowing you to acquire image data directly from external sources without leaving your current application Zoom The ability to enlarge a portion of an image ...

Page 124: ...10 Term Glossary ...

Page 125: ...to Exposure 4 11 Auto Locate 4 11 6 6 Automatic document feeder 3 5 6 5 6 8 Automatic features 4 11 B Best de screening mode 3 10 Bidirectional parallel interface 1 4 Bit modes see Data 6 12 Brightness 4 6 6 8 B 17 Bulletin Board Service Intro 6 C Calibration chart 2 5 to 2 7 monitor 2 1 to 2 3 4 2 printer 2 4 to 2 7 problems 6 8 6 10 to 6 12 purpose 2 1 screen 2 1 to 2 3 4 2 system 2 1 to 2 8 usi...

Page 126: ... Expression 636 scanner B 3 formats 3 9 6 12 source 1 5 6 1 to 6 2 Default settings A 1 to A 3 Destination advanced screen options 3 12 to 3 16 button 2 8 3 13 default settings A 1 to A 3 defining resolution 3 13 to 3 15 deleting 3 16 easy screen options 3 6 modifying 3 12 to 3 16 problems 6 6 6 14 saving 3 16 selecting calibration profiles 3 15 DIB 5 3 5 5 Display video see Video display Dither 3...

Page 127: ...problems 6 7 Filters color 4 10 6 8 Fit in Window command 5 6 Flatbed setting 3 5 6 5 FTP site Intro 6 G Gamma correction Expression 636 scanner B 18 Gamma setting 4 3 Gray Balance 4 9 Grayscale 3 14 B 16 GT 6500 scanner restrictions 3 20 GT 8000 scanner restrictions 3 20 GT 9000 scanner restrictions 3 20 Guidelines Expression 636 scanner settings B 12 to B 20 H Halftone setting 3 9 3 11 6 6 6 12 ...

Page 128: ...Midtones 4 6 Minimize button 6 7 Moire patterns 6 14 Monitor resolution B 19 Monitor calibration see Calibration Multipage scanning 3 5 6 8 N Number of Comparison Samples option 4 2 O OCR 3 6 3 21 Online support Intro 6 Optimum resolutions 3 14 B 16 ORG file format 5 2 P Paper jam 6 5 Parallel interface Intro 3 1 4 6 2 Pixel Depth setting 3 9 3 11 4 3 5 3 5 5 6 6 6 14 3 Port ID 1 4 6 2 Preview are...

Page 129: ...face Intro 3 1 4 problems 6 2 to 6 4 Selection matrix 3 11 Service bureau 2 5 Shadow setting 4 3 4 5 6 11 Sharpness setting 4 3 6 5 6 14 Size setting Expression 636 scanner B 2 B 17 Software installation 1 1 to 1 5 Special effects 4 1 to 4 11 Subtractive color process 2 1 Support online Intro 6 System requirements Intro 3 T Technical help Intro 5 Test button 1 5 Text Enhancement Technology option ...

Page 130: ... 12 6 15 W Width setting 3 18 6 7 Windows 3 1 Setup 2 2 3 17 6 8 6 15 95 Add New Hardware option 1 2 95 Display 2 2 3 17 6 8 6 15 minimize button 6 7 restarting 6 1 to 6 2 6 7 Setup colors 2 2 3 17 system requirements Intro 3 video display see Video display World Wide Web Intro 6 Z Zoom Preview icon 3 17 4 3 ...

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