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Scanning Basics

Applying a Preset Tone Curve

You can finely adjust the contrast within an image by applying
one of the preset tone curves. This allows more control over the
image when used in conjunction with the Auto Exposure settings
in the Manual mode window. The Tone Curve Name list in the
Tone Correction dialog box provides the five most common tone
correction curves, described below.

Linear

A linear tone curve has no tone correction. Use this setting if you
are satisfied with the tone of the preview image.

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Содержание Perfection 640U Series

Страница 1: ...ized 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 by SEIKO EPSON CORPORATION EPSON is a registered trademark of SEIKO EPSON CORPORATION IBM and PS 2 are...

Страница 2: ... 2 ...

Страница 3: ...the Buttons on Windows 1 13 Chapter 2 Scanning Basics Selecting a Mode 2 2 Full Auto mode 2 2 Manual mode 2 3 Scanning from the Full Auto Mode 2 4 Scanning from the Manual Mode 2 7 Optimizing Image Scanning 2 8 Manually optimizing images 2 9 Displaying a preview image 2 10 Adjusting the Highlight Setting 2 10 Adjusting the Shadow Setting 2 12 Adjusting the Gamma Setting 2 13 Applying a Preset Tone...

Страница 4: ...lor Adjustment 3 14 Auto Exposure 3 15 Reset Button 3 16 Auto Locate 3 16 Configuration Button 3 18 Scan Button 3 20 Chapter 4 Calibrating Your System Overview 4 2 Calibrating Your Screen 4 2 For Windows 98 and 2000 users 4 3 For Macintosh users 4 5 Using ICM sRGB For Windows Users 4 6 Using ColorSync For Macintosh Users 4 7 Chapter 5 Maintenance and Troubleshooting Maintenance 5 3 Cleaning the sc...

Страница 5: ...3 When scanning printed matter textured patterns of dots appear inside particular areas of the image 5 14 Colors on your monitor are different from those in the original image 5 14 Printed colors are different from those in the original image 5 14 The printed image is larger or smaller than the original 5 15 Scanned images cannot be printed or come out garbled when printed 5 15 Software Setup Prob...

Страница 6: ... cards 5 27 Monitors 5 28 File compression software 5 28 Appendix A Technical Specifications System Requirements A 2 For PCs A 2 For Macintosh computers A 3 Scanning A 4 Electrical A 5 AC Adapter A 5 Environmental A 6 Safety Approvals A 7 Scanner A 7 AC adapter A 7 CE marking A 8 Scanner A 8 AC adapter A 8 USB Interface A 9 Initialization Methods A 10 Appendix B Contacting Customer Support Overvie...

Страница 7: ... Scan feature to make scanning much easier The software supports the following EPSON scanner EPSON Perfection 640U EPSON TWAIN directly controls all of the features of your EPSON scanner This program is the standard cross platform interface for other applications The CD ROM also contains other applications that let you use yourscannerin excitingnewways Fordetailedinformation refer to the supportin...

Страница 8: ...EPSON scanner If you notice that colors on your screen or in your printout do not match the original image see this chapter Chapter 5 contains maintenance and troubleshooting information If your software does not operate properly or scanned images are not what you expect see this chapter Appendix A contains technical specifications information Appendix B contains customer support information Notes...

Страница 9: ... 2 The EPSON SMART PANEL for Scanner 1 3 About applications in the EPSON SMART PANEL window1 3 Assigning an application to the Start button 1 10 Using the Copy Button to Copy 1 11 Using the Scan Button to Scan 1 12 Assigning Another Application to the Buttons on Windows 1 13 ...

Страница 10: ...canner is not installed You can assign a desired application to the Start t Copy or s Scan button on the scanner See Assigning Another Application to the Buttons on Windows on page 1 13 for details on setting up the button Depending on the installed application on your PC when you press the buttons on the scanner the following dialog box may appear If this happens click Cancel and then set up EPSO...

Страница 11: ...on the EPSON SMART PANEL for Scanner installation refer to the Startup Guide There are two modes offered by Scan Assistant Photo Scan Assistant Photo Scan Assistant helps you achieve the best results in scanning color documents such as photos and magazines this mode is used in applications such as Scan to E mail Scan to Application and Scan for Creativity Document Scan Assistant Document Scan Assi...

Страница 12: ...ON SMART PANEL window you can use the scanner to scan and then send data directly to the application In addition you can assign any of the above applications to the Start button on the scanner This makes scanning and then sending data to the assigned application even simpler All you need to do is press the Start button Note The application currently assigned to the Start button has the Start butto...

Страница 13: ...oks like a real copy machine yet its functions are far more powerful and flexible than the conventional copy machines For details refer to the EPSON SMART PANEL for Scanner documentation Note By default this application has been assigned to the t Copy button For details see Using the Copy Button to Copy on page 1 11 ...

Страница 14: ... this application to scan and save the result or send e mails with your scanned image When the following Photo Scan Assistant dialog box appears you can change the settings For details refer to the EPSON SMART PANEL for Scanner documentation ...

Страница 15: ...an and convert images to text The converted text can be saved or sent to a word processing application When the following Document Scan Assistant dialog box appears you can change the settings For details refer to the EPSON SMART PANEL for Scanner documentation ...

Страница 16: ... scan and then print images as photos You can print in various sizes or place several photos on the same page You can also create collages or print several versions of the same image easily For details refer to the EPSON SMART PANEL for Scanner documentation ...

Страница 17: ... Application Use this application to scan and send images to an application When the following Photo Scan Assistant dialog box appears you can change the settings For details refer to the EPSON SMART PANEL for Scanner documentation ...

Страница 18: ...his application is assigned to the s Scan button For details see Using the Scan Button to Scan on page 1 11 Assigning an application to the Start button To assign an application in the EPSON SMART PANEL window to the Start button on the scanner follow the steps below 1 Click the EPSON SMART PANEL for Scanner icon on the task bar to start EPSON SMART PANEL for Scanner 2 Select an application from t...

Страница 19: ...owing window appears The document is scanned and then printed in high quality Note To cancel the operation or change the setting click the y Cancel button on the Copy Utility window and then change the setting For details about the settings refer to the EPSON SMART PANEL for Scanner documentation Using the Scan Button to Scan If PhotoDeluxe is installed you can use the s Scan button on the scanner...

Страница 20: ...cally previews the images and recognizes the image type Note To cancel the operation click Cancel and then click Close 2 Thefollowingwindowappearswithaprogressbartoindicate the scanning progress You can see the type of document beingscanned When scanning multiple photos youscan also see the number of scanned image ...

Страница 21: ... scanned image is sent to PhotoDeluxe Assigning Another Application to the Buttons on Windows You can assign any application other than EPSON SMART PANEL for Scanner which supports Scanner events for example Microsoft Imaging for Windows as long as it is installed on Windows 98 or Windows 2000 to the button on the scanner When you press the button EPSON TWAIN s dialog box opens or scanning starts ...

Страница 22: ...dialog box similar to the one shown below Note for Macintosh users On your Macintosh computer you cannot assign any application other than EPSON SMART PANEL for Scanner to the buttons on the scanner Assigning an application to the buttons Make sure the application supports Scanner events and then follow the steps 1 Double click the Scanners and Cameras icon in Control Panel ...

Страница 23: ...list and then select the check box of the desired application in the Send to this application list clear the rest of the check boxes Note If multiple applications are selected when the button is pressed a dialog box appears to prompt you to select just one from the list Some applications do not support linkage to scanners and digital cameras Only applications in the Send to this application list s...

Страница 24: ...ble Scanner events select the Disable device events check box in the EPSON Perfection640 Properties dialog box When this check box is clear Windows can detect if the button is pressed and then launch the application you selected in the Send to this application list ...

Страница 25: ...imizing images 2 9 Displaying a preview image 2 10 Adjusting the Highlight Setting 2 10 Adjusting the Shadow Setting 2 12 Adjusting the Gamma Setting 2 13 Applying a Preset Tone Curve 2 14 Adjusting the Gray Balance Intensity Setting 2 17 Adjusting the Saturation Setting 2 18 Using the Tone Curve 2 18 Saving your own tone curve 2 21 Deleting a customized tone curve 2 22 Closing the Tone Correction...

Страница 26: ... scan quickly and easily without changing any complex settings select the Full Auto mode To have more control over your scanning settings click Cancel during preview and document type recognition and then click the Manual Mode button to open the Manual mode window Note Depending on the image you want to scan you may not get the expected scanned image In this case scan the image in the Manual mode ...

Страница 27: ...ble to give you greater control over your scanning If you want to sharpen correct enhance or preview your images before scanning them select the Manual mode If you do not need all the options that the Manual mode provides click theFull Auto Mode button to open the Full Auto mode window ...

Страница 28: ...n and open EPSON TWAIN The following window appears EPSON TWAIN automatically previews the image and recognizes the image type See Document Type Recognition setting on page 2 5 If you want to make more settings click Cancel and then click the Manual Mode button to open the Manual mode window ...

Страница 29: ...e indicated Note You cannot scan an image which exceeds the available memory or disk space If you try to scan a very large image an alert appears on the screen Before scanning be sure to calibrate your screen For details see Calibrating Your Screen on page 4 2 After an image is scanned be sure to save or export it Document Type Recognition setting The image is automatically recognized as one of th...

Страница 30: ... and white scanning Color Document 24 bit color scanning with de screening to remove moiré patterns Black White Document 8 bit gray scanning with de screening Auto Locate The scanner automatically locates and selects the target image The image appears without white borders If the document type is photo Auto Locate applies to each photo otherwise it covers the whole area of the image Detect Skew An...

Страница 31: ...l mode allows you to make detailed settings You can set parameters for a setting or select special functions provided with EPSON TWAIN to attain the highest quality scanned images Note Online help also provides you with information on settings Click Help to access the online help You cannot scan an image which exceeds the available memory or disk space If you try to scan a very large image an aler...

Страница 32: ... the exposuresandcolorsofscannedimagesduringscanning Youcan also make adjustments manually with the image quality adjustment tools in Manual mode window This section provides general information on optimizing images with these tools Note for Macintosh users Most illustrations shown in this section are for Windows so they may vary in appearance from what actually appears on your screen The instruct...

Страница 33: ...rve with a predefined tone correction setting in the Tone Correction dialog box See Applying a Preset Tone Curve on page 2 14 Make color adjustments 4 Adjust the Gray Balance Intensity setting in the Color Adjustment dialog box See Adjusting the Gray Balance Intensity Setting on page 2 17 5 Adjust the Saturation setting in the Color Adjustment dialog box See Adjusting the Saturation Setting on pag...

Страница 34: ...s and Configuration Button on page 3 18 for information about how to control preview image quality 1 After selecting the Image Type click Preview to start prescanning A preview image of the document appears on your screen When the Automatic Preview check box in the Configuration dialog box is selected a preview image is automatically displayed after EPSON TWAIN is started 2 Click one of the button...

Страница 35: ...ghlight point and click it The brightness of the pixel at the point you click is set as the highlight level and the other parts of the image are adjusted accordingly 3 To change the highlight level brightness of the point you selected move the Highlight slider left or right or enter a value in the text box You can enter a value between 61 and 490 for the highlight Note See Image Controls on page 3...

Страница 36: ... restricted to within the Preview window 2 Move the eyedropper to the location you want to select as the shadow point and then click The brightness of the pixel at the point you click is set as the shadow level and the other parts of the image are adjusted accordingly 3 To change the shadow level darkness of the point you selected movetheShadowsliderleftorright orenteravalue in the text box You ca...

Страница 37: ...tween the light tones and dark tones of an image Any change you make in the gamma level only affects the mid tones of the image To change the gamma level of the image move the Gamma slider left or right or enter a value in the text box You can enter a value between 50 and 500 for the gamma Note See Image Controls on page 3 9 for further information on adjusting the gamma level ...

Страница 38: ...re control over the image when used in conjunction with the Auto Exposure settings in the Manual mode window The Tone Curve Name list in the Tone Correction dialog box provides the five most common tone correction curves described below Linear A linear tone curve has no tone correction Use this setting if you are satisfied with the tone of the preview image ...

Страница 39: ...Scanning Basics 2 15 Lighten Adjusts darker images like underexposed film to make them slightly brighter Darken Adjusts brighter images like overexposed film to make them slightly darker ...

Страница 40: ...2 16 Scanning Basics Flat Contrast Flattens high contrast images to make them look more natural High Contrast Increases the contrast of dull images ...

Страница 41: ...toaneyedropper withmovement restricted to within the Preview window 2 Move the eyedropper to a location where you want to adjust its gray balance intensity and then click the color The color you selected appears in the two boxes below the Gray Balance Intensity slider 3 Move the slider left or right or enter a value in the text box to change the gray balance intensity level of the color You can en...

Страница 42: ...l of the image move the Saturation slider left or right or input a value in the text box You can enter a value between 100 lowest color density and 100 highest color density Note See Color Adjustment on page 3 14 for more information onadjusting the saturation level Using the Tone Curve The tone curve provides you with a versatile means for adjusting the intensity of the colors of the image being ...

Страница 43: ...curve to make initial settings is not recommended The Tone Correction button is unavailable whenever Text Line Art is selected for the Image Type The tone curve is located in the Tone Correction dialog box which appears when you click the Tone Correction button in the Manual mode window The following section describes how to use each of the controls in the Tone Correction dialog box Tone Correctio...

Страница 44: ...electing one of the other channels allows you to adjust red green or blue only Tone curve editor Moving the mouse pointer into the tone curve editor causes it to change to a finger Use this pointer to drag any of the five points in the curve and change its shape The x axis of the curve is the brightness of the original input values while the y axis is the brightness of the scanned image output val...

Страница 45: ...eck boxes When a value s check box is clear its point on the tone curve editor automatically shifts to smooth out the tone curve when one of the other points is moved When a value s check box is selected it means that its point is fixed and it will not shift when other points are moved Saving your own tone curve Use the following procedure to assign a name to a tone curve you have customized and w...

Страница 46: ...Correction dialog box You can close the Tone Correction dialog box by clicking either OK or Cancel Clicking OK applies the current Tone Correction dialog box settings and closes the dialog box Note for Macintosh users Clicking the close button in the upper right corner of the dialog box has the same affect as clicking OK Clicking Cancel closes the dialog box without applying the current dialog box...

Страница 47: ...es Overview 3 2 Previewing Images 3 3 Image Types 3 6 Image Type list 3 6 Changing Resolution 3 8 Unsharp Mask 3 8 Size 3 8 Image Controls 3 9 Tone Correction 3 12 Color Adjustment 3 14 Auto Exposure 3 15 Reset Button 3 16 Auto Locate 3 16 Configuration Button 3 18 Scan Button 3 20 ...

Страница 48: ...compliant application one of the following windows appear on the screen Note for Macintosh users Most illustrations shown in this section are for Windows so they may vary in appearance from what actually appears on your screen The instructions should be the same except as noted Full Auto mode ...

Страница 49: ...s may appear dimmed depending on your choice of settings and the features supported by your scanner Previewing Images Before you scan and save an image you can preview it in the Preview window located on the right side of the Manual mode window Use the preview feature to check the results of your settings Manual mode ...

Страница 50: ... memory or disk space If you try to preview a very large image an alert appears on the screen When the mouse pointer is placed in the Preview window it changes to a cross hairs Drag the cross hairs over any area of the image and a frame appears The point where you first clicked is anchored but the rest of the frame is sizable and movable Preview window ...

Страница 51: ...l movement When the mouse pointer is placed on the edge of the marquee it changes to an arrow allowing you to re size the marquee If you drag an arrow while pressing the Shift key the marquee will be resized proportionally To remove or delete a marquee double click the Preview window Modifying the preview image You can see the effects of the following settings in the preview image Image Type and U...

Страница 52: ...e settings do not affect the actual image until you scan or re scan the image Image Types Use the Image Type list to select the type of image to be scanned Image Type list The Image Type list provides the following settings Click the arrows on the right to view all of the available settings Color Photo 24 bit color scanning This setting is useful when scanning color photo Color Document 24 bit col...

Страница 53: ...ning This setting is useful when scanning black and white photo Black White Document 8 bit gray scanning with de screening This setting is useful when scanning magazine or newspaper Illustration 24 bit color scanning with color smoothing to reduce the colors in an image to limited number of index colors This setting is useful when scanning large areas of solid colors for example logos illustration...

Страница 54: ...ions are 72 96 150 300 600 1200 2400 and 9600 dpi Unsharp Mask You can select or deselect the Unsharp Mask setting Selecting the check box improves image sharpness Note If the Image Type setting is Text Line Art or Illustration this check box appears dimmed and cannot be selected Size The Size fields indicate the size of the image that is displayed or selected in the Preview window ...

Страница 55: ... area in the Preview window by creating a marquee or frame Do this by dragging the mouse over the desired area See Previewing Images on page 3 3 for more information on marquees Units menu Select a unit of measurement You can select either pixels inches or cm Storage size indicator The storage size of an image is indicated in KB or MB As you change the image area in the Preview window this value a...

Страница 56: ... or ColorSync is selected in the Configuration dialog box If Image Type is set to Text Line Art all the settings except Threshold appear dimmed and cannot be selected You can see the effects of the Image Controls settings in the Preview window Exposure The Exposure setting lightens or darkens an image You can select from 10 darkest to 20 brightest by moving the slider The Exposure and Highlight co...

Страница 57: ... This effect appears immediately in the preview image Click Cancel to restore the original image Shadow The Shadow control allows you to adjust the darkness level of the darkest parts of an image You can select from 0 to 60 by moving the slider Click the eyedropper button beneath the slider and the mouse pointer changes to an eyedropper Move the eyedropper over the preview image and click a dark a...

Страница 58: ... Linear The Tone Correction button appears dimmed and is not available when Image Type is set to Text Line Art or when ICM or ColorSync is selected in the Configuration dialog box You can see the effects of the Tone Correction settings in the Preview window The tone value represents the contrast in the tonal relationship between an original image and its reproduction on a monitor or printer ...

Страница 59: ...oints on the curve If the check box is cleared the point becomes affected by the movement of other points Channels options You can select the combined red green and blue RGB channel to modify all colors or select these colors separately Note If Image Type is set to Black White Photo or Black White Document you can only select the combined RGB channel option Save Delete OK Cancel Help buttons After...

Страница 60: ...e setting is Black White Photo Black White Document or Text Line Art or if in the Configuration dialog box ICM or ColorSync is selected the Color Adjustment button appears dimmed and these settings cannot be selected You can see the effects of the Color Adjustment settings in the Preview window Gray Balance Intensity Gray Balance Intensity removes unwanted color casts and tints by balancing color ...

Страница 61: ...ore the original image Saturation Saturation is the property that defines color depth Select a saturation level from 100 less color to 100 more color by moving the slider Auto Exposure Click the Auto Exposure button on the Manual mode window to automatically optimize the exposure for an image The Gamma Highlight and Shadow settings in the Image Controls dialog box are automatically set Note The Au...

Страница 62: ...lt settings If you did not alter any image control settings this button appears dimmed and is not available Auto Locate Click the Auto Locate button on the Manual mode window to cause the scanner to automatically locate and select the target image The image appears without white borders in the Preview window entire preview area located image ...

Страница 63: ...creating a marquee on the image andclicking the Auto Locate button The selected target image is located automatically Note Create a marquee only on the target image If the marquee covers other images the Auto Locate feature does not work as expected target image and other image located and non located images ...

Страница 64: ...y the following dialog box and make changes Save Preview Image and Settings Select this check box to automatically save the preview image and its image settings when you exit EPSON TWAIN and quit scanning The image and its settings are available the next time you restart EPSON TWAIN Automatic Preview Select this check box to enable automatic preview when EPSON TWAIN starts Windows Macintosh ...

Страница 65: ...eck box appears dimmed and cannot be selected See Using ICM sRGB For Windows Users on page 4 6 for more details ColorSync for Macintosh Select this check box to reproduce an image is colors using the ColorSync color management system This setting is available only on Macintosh system Note If your printer and your monitor do not support ColorSync be sure to clear this check box If the Image Type se...

Страница 66: ...k with the image from within that application While scanning a progress indicator appears If necessary click the Cancel button to cancel the operation Note You cannot scan an image which exceeds the available memory or disk space If you try to scan a very large image an alert appears on the screen Before scanning be sure to calibrate your screen For details see Calibrating Your Screen on page 4 2 ...

Страница 67: ...ystem 4 1 Chapter 4 Calibrating Your System Overview 4 2 Calibrating Your Screen 4 2 For Windows 98 and 2000 users 4 3 For Macintosh users 4 5 Using ICM sRGB For Windows Users 4 6 Using ColorSync For Macintosh Users 4 7 ...

Страница 68: ...ur monitor to ensure the tone andcontraston yourscreen match theoriginalimage Besure to calibrate your screen before using your scanner For more information regarding color and output device calibration see the Color Guide Calibrating Your Screen You need to calibrate your screen when you first install the scanner software and anytime you switch to a different monitor ...

Страница 69: ...Calibrating Your System 4 3 For Windows 98 and 2000 users 1 Double click the Scanners and Cameras icon in Control Panel The Scanners and Cameras Properties dialog box appears Click the Properties button ...

Страница 70: ...4 4 Calibrating Your System 2 Click the Utility tab then click the Screen Calibration Utility icon The Screen Calibration dialog box appears ...

Страница 71: ... to finish calibrating your scanner and monitor The setting is automatically saved as the Screen profile in the Calibration list in EPSON TWAIN s Destination dialog box The screen profile contains calibration information for the preview image as well as the scanned image For Macintosh users 1 Click the EPSON Screen Calibration icon in the EPSON Scanner folder to view the Screen Calibration dialog ...

Страница 72: ...eview image as well as the scanned image Using ICM sRGB For Windows Users If you use Windows 98 or 2000 and your output devices printer andmonitor supporttheICMcolormanagementsystem youcan use the ICM calibration method Note If your output devices do not support sRGB leave the check box empty Follow the steps below 1 Run TWAIN compliant application and select Acquire or a similar command from the ...

Страница 73: ...e appropriate System Profile settings in the ColorSync control panel for optimal color matching For more information see your Macintosh documentation Follow the basic steps below 1 Run TWAIN compliant application and select Acquire or a similar command to start EPSON TWAIN 2 Click the Configuration button on the Manual mode window Select ColorSync in the Configuration dialog box 3 Make any other s...

Страница 74: ...4 8 Calibrating Your System ...

Страница 75: ...f the image is distorted or blurred 5 11 Edges of the document are not scanned 5 11 Colors are patchy or distorted at the edges of the image 5 12 The image is faint or out of focus 5 12 The image is too dark 5 12 Straight lines in the image come out jagged 5 12 The image does not look the same as the original 5 13 A line of dots is always missing from the scanned image 5 13 When scanning printed m...

Страница 76: ...16 Moiré cross hatch patterns appear in the scanned image 5 17 Colors differ from the original 5 17 Pressing the button on the scanner does not start scanning 5 17 Scanned image by using the button is missing 5 18 Upgrading from Windows 98 to Windows 2000 5 18 Recovering from Scanner Software Installation Problems on Windows 5 20 For Windows 98 users 5 21 For Windows 2000 users 5 24 Sizing up Your...

Страница 77: ... Wipe off all remaining liquid Be sure that there is no dust on the glass of the document table Dust can cause white spots in your scanned image c Caution Be careful not to scratch or damage the glass of the document table and do not use a hard or abrasive brush to clean it A damaged glass surface can decrease the scanning quality Never use alcohol thinner or corrosive solvent to clean the scanner...

Страница 78: ...the fluorescent lamp will not come on When this happens the lamp assembly must be replaced For details contact your dealer c Caution Never open the case of the scanner If you think repairs or adjustments are necessary consult your dealer Removing the Cover for Thick or Large Documents For thick materials or documents that are larger than the document table remove the document cover First open the ...

Страница 79: ...ng with the cover removed do not leave any area of the document table exposed to prevent interference from external light When you are finished scanning reattach the document cover in the reverse order that you removed it Then pull the cover straight up ...

Страница 80: ...to prevent any damage Follow the steps below 1 Plug in the scanner and wait until the carriage moves to the home position position closest to the cover hinges While the carriage lamp remains on unplug the power cord 2 Disconnect the AC adapter from the DC inlet and then slide the transportation lock to the left 3 Push the scanner straight down on the stand until it sets into place ...

Страница 81: ... an extended period you need to lock the scanner s carriage to prevent damage Follow the steps below 1 Plug in the scanner and wait until the carriage moves to the home position position closest to the cover hinges While the carriage lamp remains on unplug the power cord 2 Disconnect the AC adapter from the DC inlet and then slide the transportation lock to the left Problems and Solutions Most of ...

Страница 82: ...appear dimmed in EPSON TWAIN they cannot be selected because of the capability of your scanner or your choice of other settings If you cannot solve a problem after reading and following the information in this section contact your dealer or a qualified customer support person for assistance Error Indicator If an error occurs the scanner stops and the light shows the type of error Command error The...

Страница 83: ...canner and USB connector and then plug them back in Fatal error This type of error indicates one or the following problems The fluorescent lamp needs to be replaced The scanner is malfunctioning Consult your dealer Operating Problems Problems you may have while using the scanner often involve the operation of your software and computer Operation problems usually occur because of Incorrect setup of...

Страница 84: ...does not scan Wait until the indicator light stays on in green ready for scanning Try connecting the scanner directly to the computer s USB port or use an EPSON USB cable The scanner software does not work properly Make sure your software is installed correctly For Windows users Check if your scanner is listed more than once in the Scanners and Cameras Properties dialog box To view the dialog box ...

Страница 85: ...r the software you are using Make sure the computer has enough memory for your software If the computer does not have enough memory available see your software and computer documentation for details Quality Problems The entire image is distorted or blurred Make sure the document is flat against the document table Make sure you do not accidentally move the document during scanning Make sure the sca...

Страница 86: ...dges of the document with paper to block outside light Make sure the document is flat against the document table The image is faint or out of focus Make sure the document is flat against the document table Adjust your software s Exposure setting See Image Controls on page 3 9 Adjust your software s Gamma setting See Adjusting the Gamma Setting on page 2 13 The image is too dark Check your software...

Страница 87: ...ng and color management features or these components may not be installed correctly See the documentation that comes with your software and computer If you are importing an image file make sure the file format is one your software can read Also make sure the image settings ofyour software are appropriate for the type of image you want to scan A line of dots is always missing from the scanned image...

Страница 88: ...ction and color correction Try different combinations of these settings Check the color matching and color management capabilities of your computer display adapter and software Some computers can change the color palette to adjust the colors on your screen See your software and hardware manuals for details Exact color matching is very difficult Check your software and monitor documentation for inf...

Страница 89: ...be printed or come out garbled when printed Make sure your printer is properly connected to the computer correctly set up and maintained See your printer manual for details Check that your software is properly installed and set up for your printer See your software manual Software Setup Problems You cannot install EPSON TWAIN Check if your computer and operating system meets the system requirement...

Страница 90: ...under Imaging Device hardware type without a question or an exclamation mark If the scanner appears with a question or an exclamation mark or as an Unknown devices hardware type click Remove to remove it while the scanner is still connected and turned on Then reinstall EPSON TWAIN See Recovering from Scanner Software Installation Problems on Windows on page 5 21 Note If the EPSON Scanners Driver D...

Страница 91: ...ner ChangetheThresholdsettingintheImageControldialogbox See Image Controls on page 3 9 Moiré cross hatch patterns appear in the scanned image Make sure Image Type is set to Color Document or Black White Document in the Manual mode window Place a transparent sheet such as an overhead projector sheet between the document and the document table Reposition the document slightly Make the image size sli...

Страница 92: ... s Launch Application path is set correctly For Windows users Click the Events tab in your scanner s Properties dialog box and make sure the Disable device events check box is clear Also make sure the desired button is selected as the Scanner events and at least one scanner event recognizable application in the Send to this application list is selected Scanned image by using the button is missing ...

Страница 93: ... Connectthe scannerandinstallEPSONTWAINfollowingthe instructions in your Startup Guide Uninstalling EPSON TWAIN 1 Connect the scanner to the PC Plug in the scanner then turn on the PC 2 Click Start and point to Settings then select Control Panel 3 Double click the Scanners and Cameras icon 4 Select your scanner from the installed devices list then click Remove 5 Click OK to close the dialog box ...

Страница 94: ... Provide Files Note If you insert the Scanner Software CD and click Provide Files an error message may appear Replace the scanner software CD with the Windows 2000CD ROM and continue installing Windows 2000 After finishing the Windows 2000 installation you need to uninstall your scanner from the Device Manager and reinstall EPSON TWAIN Follow theinstructions RecoveringfromScannerSoftware Installat...

Страница 95: ...ructions below and then reinstall EPSON TWAIN following the instructions in your Startup Guide Follow the steps below to check the installation 1 Plug the interface cable into your scanner and the PC Plug in your scanner and then turn on the PC 2 Right click the My Computer icon on your desktop then click Properties For Windows 98 users Click the Device Manager tab For Windows 2000 users In the Sy...

Страница 96: ...98 users If EPSON Perfection640 appears under Other devices with a question mark see If EPSON Perfection640 appears under Other devices with a question mark on page 5 23 If EPSON Perfection640 appears under Imaging Device with an exclamation mark see If EPSON Perfection640 appears under Imaging Device with an exclamation mark on page 5 24 EPSONPerfection640appearing under Imaging Device with an ex...

Страница 97: ...er is unplugged or not connected to your PC you cannot reinstall the driver properly 1 Click EPSON Perfection640 then click Remove and OK 2 Click Close to close the System Properties window 3 Shut down your PC and unplug your scanner Then turn on your PC and plug back your scanner 4 The following dialog box appears To install the driver again follow the instructions in your Startup Guide ...

Страница 98: ... unplugged or not connected to your PC you cannot reinstall the driver properly 1 Click EPSON Perfection640 then click Remove and OK 2 Click Close to close the System Properties window 3 Shut down your PC and unplug your scanner Then turn on your PC and plug back your scanner 4 When a message appears to prompt you to insert the scanner software CD insert the CD in the CD ROM drive and then click O...

Страница 99: ... preferred language and the Win98 folder as the location as shown below Finally click OK 5 The Screen Calibration window appears Follow the instructions described in your Startup Guide For Windows 2000 users Note Make sure your scanner is plugged in and connected to your PC If your scanner is unplugged or not connected to your PC you cannot reinstall the driver properly ...

Страница 100: ...0 or EPSON Perfection640 and select Uninstall 2 Follow the instructions on the screen 3 Shut down your PC and unplug your scanner Then turn on your PC and plug back your scanner 4 Install EPSON TWAIN following the instructions in your Startup Guide EPSONPerfection640appearing under Imaging devices with an exclamation mark EPSONPerfection640appearing under Other devices with a question mark ...

Страница 101: ...e much more memory than text files so you may need more RAM Random Access Memory 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 Video cards A video card that is sufficient for tex...

Страница 102: ...ion software Many different programs are available to make image files smaller for storage or transmission For example some compression software can store a 3MB image file on a 1 44MB floppy disk and 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 resto...

Страница 103: ...ns System Requirements A 2 For PCs A 2 For Macintosh computers A 3 Scanning A 4 Electrical A 5 AC Adapter A 5 Environmental A 6 Safety Approvals A 7 Scanner A 7 AC adapter A 7 CE marking A 8 Scanner A 8 AC adapter A 8 USB Interface A 9 Initialization Methods A 10 ...

Страница 104: ...graded from Windows 98 pre installed model Interface The computer s USB port TYPE A receptacle Display VGA or higher resolution monitor 640 480 screen resolution 800 600 or higher recommended and 256 color 65 000 color or higher recommended Note Color and tone reproduction are subject to the display capability of your computer system including the video card display monitor and software See the pr...

Страница 105: ...acintosh USB Display Color Monitor 640 480 screen resolution or higher recommended and 256 color 32 000 color or higher recommended Note Color and tone reproduction are subject to the display capability of your computer system including the video card display monitor and software See the product documentation for details ...

Страница 106: ...i with Micro Step sub scan Output resolution 72 96 150 300 600 1200 2400 and 9600 dpi Color separation RGB color filters on CCD Image data 12 bits per pixel per color internal 8 bits per pixel per color external Gamma correction 1 type for user defined Interface USB Type B Receptacle Connector Light source White cold cathode fluorescent lamp Reliability 30 000 cycles of carriage movements main uni...

Страница 107: ...A Power consumption Approx 17 W Manufacturer SEIKO EPSON CORPORATION Input AC 100 120 V 50 60 Hz Output DC 24 V 0 8 A Temperature 5 to 35 C 41 to 95 F Dimensions 58 108 34 mm Weight Approx 250 g without AC plug Manufacturer SEIKO EPSON CORPORATION Input AC 220 240 V 50 60 Hz Output DC 24 V 0 8 A Temperature 5 to 35 C 41 to 95 F Dimensions 58 108 34 mm Weight Approx 250 g without AC plug ...

Страница 108: ...peration Storage 5 to 35 C 41 to 95 F 25 to 60 C 13 to 140 F Humidity Operation Storage 10 to 80 without condensation 10 to 85 without condensation Operating conditions Ordinary office or home conditions Extreme dust should be avoided Operation under direct sunlight or near a strong light source should be avoided ...

Страница 109: ...del 230V model EMC FCC part 15 Subpart B Class B CSA C108 8 Class B EMC EN 55022 CISPR Pub 22 Class B AS NZS 3548 Class B Safety standards UL 1950 CSA C22 2 No 950 EMC FCC part 15 Subpart B Class B CSA C108 8 Class B Safety standards EN 60950 EMC EN 55022 CISPR Pub 22 Class B AS NZS 3548 Class B ...

Страница 110: ...adapter 230 V model EMC Directive 89 336 EEC EN 55022 Class B EN 50082 1 IEC 60801 2 IEC 60801 3 IEC 60801 4 Low Voltage Directive 73 23 ECC EMC Directive 89 336 EEC EN 60950 EN 55022 Class B EN 61000 3 2 EN 61000 3 3 EN 50082 1 IEC 60801 2 IEC 60801 3 IEC 60801 4 ...

Страница 111: ...supported Maximum power consumption from VBUS 2mA 5V Interface No alternate setting Number of endpoints used by this interface excluding endpoint 0 2 Class Vendor specific Endpoint 1 Bulk IN transfer Maximum data transfer size 64 byte Endpoint 2 Bulk OUT transfer Maximum data transfer size 64 byte String Descriptor Language ID US English 1 Manufacturer EPSON 2 Product Perfection640U Electrical sta...

Страница 112: ...to a fixed set of conditions in the following ways Hardware initialization The scanner is plugged in The USB cable is unplugged from the USB port on the scanner Software initialization Software sends the ESC initialize the scanner command The scanner receives a Bus Reset from the USB interface ...

Страница 113: ...Contacting Customer Support B 1 Appendix B Contacting Customer Support Overview B 2 ...

Страница 114: ... support will be able to help you much more quickly if you give them the following information Product serial number The serial number label is usually on the back of the product Product model Product software version Click About Version Info or similar button in the product software Brand and model of your computer Your computer operating system name and version Names and versions of the software...

Страница 115: ...n the output image data byte A unit of information consisting of eight bits A byte can represent a control code or character carriage A component of 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 as close as possible to the original colors col...

Страница 116: ... system of commands that allows you to control printers from your software exposure A scanner function that lightens or darkens the scanned image data gamma Gamma is a value that expresses the relationship between the input and output of a device By adjusting the gamma the brightness of the mid tones of an image can be changed without affecting the shadows and highlights grayscale Images represent...

Страница 117: ...marks the area of an image that will be previewed or scanned moiré é é é A moiré is a cross hatch pattern that appears on scanned images when scanning printed material It is a result of interference that occurs due to the difference between the pitches of the scanning and the halftone screens monochrome Black and white images or images represented only by the intensity of luminosity OCR Optical Ch...

Страница 118: ...annot produce pure black threshold A reference point that is used to determine whether data will be processed as on or off In the case of color image data on means that a certain color will appear in a pixel or dot and off means that color will not appear there tone correction A method of adjusting the tone curve so that the reproduction results on different types of output devices have gradations...

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