Epson Series Perfection 1240U Series Page 61 Reference Manual Download

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Understanding EPSON TWAIN Features

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Chapter 3

Understanding EPSON TWAIN Features

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

Previewing Images . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Document Source. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

Image Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

Image Type list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
Image Type button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

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

Destination list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14
Destination button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15

Unsharp Mask . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16

Source and Target Image Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17

Image Controls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19

Tone Correction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22

Color Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-25

Auto Exposure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-26

Reset Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-27

Auto Locate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-27

Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-29

Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-30

Scan Button. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-33

Tool Tip (for Windows users). . . . . . . . . . . . . . . . . . . . . . . . . 3-33

Summary of Contents for Series Perfection 1240U Series

Page 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...

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Page 3: ...Buttons on Windows 1 17 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 8 Optimizing Image Scanning 2 10 Manually optimizing images 2 11 Displaying a preview image 2 12 Adjusting the Highlight Setting 2 13 Adjusting the Shadow Setting 2 14 Adjusting the Gamma Setting 2 16 Applying a Preset Tone C...

Page 4: ... Images 3 3 Document Source 3 6 Image Types 3 7 Image Type list 3 7 Image Type button 3 9 Destination 3 13 Destination list 3 14 Destination button 3 15 Unsharp Mask 3 16 Source and Target Image Sizes 3 17 Image Controls 3 19 Tone Correction 3 22 Color Adjustment 3 25 Auto Exposure 3 26 Reset Button 3 27 Auto Locate 3 27 Settings 3 29 Configuration 3 30 Scan Button 3 33 Tool Tip for Windows users ...

Page 5: ...s 5 13 Chapter 6 Maintenance and Troubleshooting Maintenance 6 3 Cleaning the scanner 6 3 Replacing the fluorescent lamp 6 4 Removing the Cover for Thick or Large Documents 6 5 Transporting the Scanner 6 6 Problems and Solutions 6 7 Error Indicator 6 8 Operating Problems 6 9 The fluorescent lamp does not come on 6 9 The scanner does not scan 6 9 The scanner software does not work properly 6 10 Qua...

Page 6: ...TWAIN 6 15 Software Operation Problems 6 15 You cannot start EPSON TWAIN 6 15 You can t select optional equipment Film Adapter 6 16 Scanning Problems 6 16 Image is dark with little or no detail 6 16 You cannot scan an image or you only get a few dots for the scanned image 6 16 Moiré cross hatch patterns appear in the scanned image 6 17 Colors differ from the original 6 17 Poor character recognitio...

Page 7: ...tosh computers A 2 Scanning A 3 Electrical A 4 AC Adapter A 5 Environmental A 6 Safety Approvals Scanner A 7 Safety Approvals AC Adapter A 8 CE Marking Scanner A 9 CE Marking AC Adapter A 10 USB Interface A 11 Initialization Methods A 12 Film Adapter A 13 Appendix B Contacting Customer Support Overview B 2 Glossary ...

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Page 9: ...anning much easier The software supports the following EPSON scanners EPSON Perfection 1240U Perfection 1240U Photo 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 supporti...

Page 10: ...ner If you notice that colors on your screen or in your printout do not match the original image see this chapter Chapter 5 explains how to use the option Chapter 6 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 cus...

Page 11: ... 1 2 EPSON SMART PANEL for Scanner 1 3 About applications in the EPSON SMART PANEL window1 4 Assigning an application to the Start button 1 12 Using the Copy Button to Copy 1 13 Using the Scan Button to Scan 1 14 Assigning Another Application to the Buttons on Windows 1 17 ...

Page 12: ... t Copy button to scan and copy images The document is scanned and then printed automatically in high quality with a single press of the t Copy button on the scanner For more details see Using the Copy Button to Copy on page 1 13 Scan button You can use the s Scan button to scan an image and then transfer it to Adobe PhotoDeluxe Pressing the s Scan button on the scanner starts the scanning process...

Page 13: ...ON SMART PANEL for Scanner installation refer to the Startup Guide If you plan to scan transparent materials using the optional Film Adapter from the EPSON SMART PANEL for Scanner application refer to the EPSON SMART PANEL for Scanner documentation for details There are two modes offered by Scan Assistant Photo Scan Assistant Photo Scan Assistant helps you to achieve the best results in scanning c...

Page 14: ...cations Copy on page 1 6 Scan to E mail on page 1 7 Scan to OCR on page 1 8 Photo Print on page 1 9 Scan to Application on page 1 10 Scan for Creativity on page 1 11 These applications can access your scanner which means by clicking an applications icon you can use the scanner to scan and then send data directly to the application ...

Page 15: ...he above applications to the Start button on the scanner See Assigning an application to the Start button on page 1 12 for details This makes scanning and then sending data to the assigned application even simpler All you need to do is press the Start button ...

Page 16: ...s 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 This application has been assigned to the t Copy button on the scanner For details see Using the Copy Button to Copy on page 1 13 ...

Page 17: ... 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 ...

Page 18: ...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 ...

Page 19: ... 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 ...

Page 20: ... 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 ...

Page 21: ... is installed 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 Note This application is assigned to the s Scan button on the scanner For details see Using the Scan Button to Scan on page 1 14 ...

Page 22: ...for Scanner icon on the task bar to start EPSON SMART PANEL for Scanner 2 Select an application from the EPSON SMART PANEL list box or press the Start button at the lower left corner to cycle through the applications clockwise The selected application is assigned to the Start button Note The application currently assigned to the Start button on the Scanner has the Start button icon added to its ap...

Page 23: ...plication in the EPSON SMART PANEL window to make copies as follows 1 Press the t Copy button on the scanner The following window appears 2 The document is scanned and then printed automatically 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 P...

Page 24: ...n Button to Scan If Adobe PhotoDeluxe is installed you can use the s Scan button on the scanner to scan and send images to PhotoDeluxe 1 Press the s Scan button on the scanner The following window appears EPSON TWAIN automatically previews the images and recognizes the image type Note To cancel the operation click Cancel and then click Close ...

Page 25: ...ltiple photos you can also see the number of scanned images Images are automatically optimized You can scan easily and quickly without changing any complex settings EPSON TWAIN automatically recognizes the image type locates the target image detects the skew of the target image adjusts the exposure and then starts scanning 3 The scanned image is sent to PhotoDeluxe ...

Page 26: ...1 16 Using the Buttons Note When you install the optional Film Adapter the following window appears first Follow the instructions displayed in the window ...

Page 27: ...e Start t Copy or s Scan button EPSON TWAIN s dialog box opens or scanning starts and the scanned image is automatically sent to the application which does not need to be opened Once EPSON TWAIN is installed the Scanners and Cameras icon appears in Control Panel and your scanner is listed in the Scanners and Cameras Properties dialog box similar to the one shown below Note for Macintosh users On y...

Page 28: ...es dialog box select your scanner from the installed scanners and cameras list Click Properties and then select the Events tab 3 Select a desired button from the Scanner events 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...

Page 29: ... Apply and then OK Disabling the buttons If you need to disable Scanner events select the Disable device events check box in the EPSON Perfection 1240 Properties dialog box When this check box is clear Windows 98 or 2000 can detect if the Start t Copy or s Scan button on the scanner is pressed and then launch the application you selected in the Send to this application list ...

Page 30: ...1 20 Using the Buttons ...

Page 31: ...ting 2 13 Adjusting the Shadow Setting 2 14 Adjusting the Gamma Setting 2 16 Applying a Preset Tone Curve 2 17 Adjusting the Gray Balance Intensity Setting 2 21 Adjusting the Saturation Setting 2 22 Using the Tone Curve 2 23 Saving your own tone curve 2 26 Deleting a customized tone curve 2 26 Closing the Tone Correction dialog box 2 27 Optimizing OCR Scanning 2 27 Scanning Text 2 27 Improving Cha...

Page 32: ...o scan quickly and easily without changing any complex settings select the Full Auto mode To have more control overyourscanningsettings clickCancelduring previewingand 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 ...

Page 33: ...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 ...

Page 34: ...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 6 If you want to make more settings click Cancel and then click the Manual Mode button to open the Manual mode window ...

Page 35: ...the following window appears first If you want to scan from the document table on the scanner using the Full Auto Mode remove the Film Adapter replace and close the document cover and then click Scan If you want to scan from the Film Adapter click the Manual Mode button ...

Page 36: ...icated 3 The scanned image s is sent to the application 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 im...

Page 37: ...nning with color smoothing Text Line Art Black 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 document or Text Line Art a 2 mm margin is added around ...

Page 38: ...e The Gamma Highlight and Shadow settings are automatically set Scanning from the Manual Mode Detect Skew Angle The scanner automatically detects the skew of the target image If the document type is photo Detect Skew Angle applies to each photo If the document type is Text Line Art it covers the whole area of the image ...

Page 39: ...mages 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 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 expo...

Page 40: ...ts manually with the image quality adjustment tools in the 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 instructions are the same except as noted Manual mode window ...

Page 41: ...urve with a predefined tone correction setting in the Tone Correction dialog box See Applying a Preset Tone Curve on page 2 17 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 21 5 Adjust the Saturation setting in the Color Adjustment dialog box See Adjusting the Saturation Setting on pa...

Page 42: ...ormation about how to control preview image quality 1 After selecting the Document Source Image Type and Destination click the Full Preview button 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 Note Make sure the Fast ...

Page 43: ...ropper button under Highlight Themousepointerchangestoaneyedropper withmovement restricted to within the Preview window 2 Move the eyedropper to the location you want to select as the highlight 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 ...

Page 44: ...een 61 and 490 for the highlight Note See Image Controls on page 3 19 for further information on adjusting the highlight level Adjusting the Shadow Setting Shadows the darkest areas of an image are the opposite of highlights 1 In the Image Controls dialog box click the eyedropper button under Shadow Themousepointerchangestoaneyedropper withmovement restricted to within the Preview window ...

Page 45: ...ick 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 move theShadow sliderleftor right orenteravalue in the text box You can enter a value between 0 and 60 for the shadow Note See Image Controls on page 3 19 for further information on adjusting the shadow level ...

Page 46: ...ge 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 19 for further information on adjusting the gamma level ...

Page 47: ...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 six 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 ...

Page 48: ...2 18 Scanning Basics Lighten Adjusts darker images like underexposed film to make them slightly brighter Darken ...

Page 49: ...Scanning Basics 2 19 Adjusts brighter images like overexposed film to make them slightly darker Flat Contrast Flattens high contrast images to make them look more natural ...

Page 50: ...2 20 Scanning Basics High Contrast Increases the contrast of dull images Open Shadow ...

Page 51: ... In the Color Adjustment dialog box click the eyedropper button under Gray Balance Intensity Themousepointerchangestoaneyedropper 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 slide...

Page 52: ...ray balance intensity level Adjusting the Saturation Setting Saturation is the density of a color Higher saturation makes the color appear richer while lower saturation makes it appear paler To change the saturation level 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 S...

Page 53: ... the shadows using Auto Exposure and the Image Controls dialog box Use of the tone curve to make initial settings is not recommended The Tone Correction button appears dimmed and is not available when Pixel Depth is set to Black White and Halftone is set to None or B W Option is set to Text Enhancement Technology in the Image Type dialog box The tone curve is located in the Tone Correction dialog ...

Page 54: ...ing the procedure in the next section Saving your own tone curve on page 2 26 Tone Correction dialog box Curve Name Highlight 1 4 Tone Midtone 3 4 Tone Shadow Description Linear 245 192 128 64 8 Default curve Lighten 245 193 133 74 4 Lightensdark image Darken 245 152 82 38 11 Darkens bright image Flat Contrast 245 182 129 72 2 Reduces contrast High Contrast 245 204 129 51 2 Increases contrast ...

Page 55: ...ghtness of the original input values while the y axis is the brightness of the scanned image output values To change the tone curve back to its default select Linear from the Tone Curve Name list Output values These are the current values for output data in accordance with the current locations of the points inside the tone curve editor These values change when you drag points in the tone curve ed...

Page 56: ...e for later use 1 Modify the tone curve settings as desired This causes the name shown in the Tone Curve Name list to change to User Defined 2 After customizing the tone curve enter a name for the new curve up to 32 characters in the list box 3 Click Save to save your new tone curve settings under the name you specified Deleting a customized tone curve Use the following procedure to delete a custo...

Page 57: ...ing OCR Scanning This section gives you suggestions and recommended settings in order to improve OCR Optical Character Recognition scanning results Scanning Text Make sure you select Text Background Removal for Image Type and OCR for Destination in the Manual mode window If the recognition rate is not satisfactory with the default settings follow these steps to change the settings Improving Charac...

Page 58: ... Preview button Then click the Image Controls button to display the Image Controls dialog box 4 Use the Threshold slider to change the threshold value monitoring the results of your changes in the Preview window Adjusting the threshold value can make it easier for OCR to recognize characters Image Controls button Image Controls dialog box ...

Page 59: ...re to make adjustments Potential Text Recognition Problems The quality of the text in your original document greatly effects OCR results The following types of originals can make recognition difficult and should be avoided if possible Items that have been copied from other copies Faxes Text with tightly spaced characters or line pitch Text that is in tables or underlined Cursive or italic fonts an...

Page 60: ...2 30 Scanning Basics ...

Page 61: ...Image Type list 3 7 Image Type button 3 9 Destination 3 13 Destination list 3 14 Destination button 3 15 Unsharp Mask 3 16 Source and Target Image Sizes 3 17 Image Controls 3 19 Tone Correction 3 22 Color Adjustment 3 25 Auto Exposure 3 26 Reset Button 3 27 Auto Locate 3 27 Settings 3 29 Configuration 3 30 Scan Button 3 33 Tool Tip for Windows users 3 33 ...

Page 62: ...ompliant application one of the following windows appears 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 ...

Page 63: ...ar 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 Full Preview button ...

Page 64: ...d drag the mouse over the area you want to see in detail and click the Zoom Preview button Note 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 Zoom Preview button preview window ...

Page 65: ...cal or horizontal 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 ...

Page 66: ...ings the settings do not affect the actual image until you scan or re scan the image Document Source When using the document table on the scanner leave Document Source set to Flatbed Other selections are available depending on what is installed They are the optional TPU for Neg Film and TPU for Pos Film for the Film Adaptor which is optional with the Perfection 1240U but included with the Perfecti...

Page 67: ...type of image to be scanned Image Type list The Image Type list provides the following predefined settings EPSON recommends you use the predefined settings first then later improve the quality of the scanned image manually by making the detailed settings described in the following pages if necessary Click the arrows on the right to view all of the available settings Color Photo 42 bit 42 bit color...

Page 68: ... interference that occurs due to the difference between the pitches of the scanning and the halftone screens Black White Photo 14 bit 14 bit gray best quality This setting is useful when scanning positive or negative film for further editing Black White Photo 8 bit gray best quality This setting is useful when scanning black and white photo Black White Document 8 bit gray best quality with de scre...

Page 69: ... characters only documents or line drawings without coloring Text Background Removal Black and white best quality Text Enhancement Technology This setting is for OCR Optical Character Recognition Copy Fax Black and white hard halftone draft quality Auto Area Segmentation Image Type button The Image Type button allows you to customize the Image Type settings If you want to make many detailed settin...

Page 70: ...he names of predefined settings and any custom settings you have saved appear in the Image Type Name list Pixel Depth Select scanning colors from 42 bit Color 24 bit Color 14 bit Gray 8 bit Gray Black White Scanning Mode Select either Best or Draft scanning quality Select Best when quality is more important than speed ...

Page 71: ...ther On or Off When On is selected colors in an image are related to limited number of index colors This is useful when scanning large areas of solid colors for example logos illustrations and charts Note The pixel depth of output image is 24 bit color Color Smoothing is available only when Pixel Depth is set to 24 bit color Auto Exposure Option Select either Photo or Document You can see the effe...

Page 72: ... Enhancement Technology TET To improve recognition accuracy during OCR Optical Character Recognition scanning select this option This function eliminates the document background from scans Auto Area Segmentation AAS To make grayscale images clearer and text recognition more accurate select this option This function separates text from graphics Note B W Option is available only when Pixel Depth is ...

Page 73: ...ame box then click Save To delete an Image Type setting select the setting name to be deleted in the Image Type Name menu then click Delete To apply the settings you made click OK The Preview window displays the effects ofthecurrentsettings except for De screening Text Enhancement Technology TET and Auto Area Segmentation AAS settings To cancel the settings click Cancel To access the online help c...

Page 74: ...ttings in your printer software selecting EPSON Stylus Printer Fine is recommended If you are printing with the SuperFine or Photo Print Quality settings select EPSON Stylus Printer Photo Note The effects of the Destination settings cannot be viewed in the Preview window Destination name Resolution Black White Gray Color Screen Web 96 dpi for Windows 72 dpi for Macintosh 96 dpi for Windows 72 dpi ...

Page 75: ... Destination Name Predefined and custom setting names appear in the Destination menu Resolution Select a scanning resolution for Black White or Gray Color Note When the Pixel Depth setting in the Image Type dialog box is set to Black White the Black White setting takes effect and the Gray Color setting becomes irrelevant For other Pixel Depth settings the Gray Color setting takes effect and the Bl...

Page 76: ...ge them arbitrarily the resulting image may not be what you expected The range of resolution values depends on your scanner Tosavethesettingsyoumade type a new name in the Destination Name box and then click Save To delete a Destination setting select the target setting name to be deleted in the Destination Name menu then click Delete To apply the settings you made click OK To cancel the settings ...

Page 77: ...ely related to the Resolution If you change either setting arbitrarily the resulting image may not be what you expect Width and Height menu The width and height of an image are indicated in the selected unit of measure You can type new values directly in the indicator fields or you can change the image area in the Preview window by creating a marquee or frame Do this by dragging the mouse over the...

Page 78: ...ange according to the ratio of width to height of the Source image This is especially useful in cases where the size of an image does not fit the size of the paper on which you want to print the image but you want to keep the image s original proportions Enter the size of the paper in the Width and Height fields of the Target box and then click the Lock button The scale value is automatically chan...

Page 79: ... arrow to change the image size in 1 increments The range of possible reduction or enlargement varies depending on the current resolution setting Scale indicator The percentage of enlargement or reduction is shown in the Scale indicator field You can type a new value directly into this field or use the Scale slider to determine the value Image Controls ...

Page 80: ...Option is set to Text Enhancement Technology in the Image Type dialog box The Image Controls settings are optimized automatically when you scan from the Full Auto mode If Pixel Depth is set to Black White and Halftone is set to None in the Image Type dialog box all the settings except Threshold appear dimmed and cannot be selected You can see the effects of the Image Controls settings in the Previ...

Page 81: ...light The Highlight control allows you to adjust the brightness level of the brightest parts of an image You can select from 61 to 490 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 bright area The eyedropper picks up the color from that area and uses it as the highlight for t...

Page 82: ...rom that area and uses it as the shadow for the entire image This effect shows up immediately in the preview image Click Cancel to restore the original image Threshold Available only when Pixel Depth is set to Black White and Halftone is set to None in the Image Type dialog box The scanner scans gray shades as either black or white using this setting You can select from 0 lightest to 255 darkest b...

Page 83: ...o Black White and Halftone is set to None or B W Option is set to Text Enhancement Technology in the Image Type 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 Tone Curve Name list Select a tone correction setting from this...

Page 84: ... 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 Pixel Depth is set to Black White 14 bit Gray or 8 bit Gray in the Image Type dialog box you can only select the combined RGB channel option Save Delete OK Cancel Help buttons After you correct tone type a name for your custom settings in the tone...

Page 85: ...box Note The Color Adjustment button appears dimmed and these settings cannot be selected when Pixel Depth is set to 14 bit Gray 8 bit Gray or Black White 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 saturation ...

Page 86: ... restore the original image Saturation Saturation is the property that defines color depth Select the saturation level for color 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 automaticall...

Page 87: ...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 ...

Page 88: ...ting a marquee on the image and clicking 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 as well the Auto Locate feature does not work as expected target image and other image located and non located images ...

Page 89: ...e setting name in the list then click Delete To scan a single image with several different settings make and save each group of settings as described above Then hold down the Shift key while clicking the custom settings you want to select in the User defined settings list After selecting all the settings you want to use when scanning click Batch Scan The scanner scans the image once for each group...

Page 90: ...TWAIN Features To access the online help click Help Configuration Click the Configuration button on the Manual mode window to view the following dialog box You can make settings that affect the Preview window Windows Macintosh ...

Page 91: ...review image is scanned in the Draft mode If this is not selected the preview image is scanned in the Best mode and you can get accurate values for the Highlight Shadow and Gray Balance Intensity by sampling with the eyedropper in the preview image Do not use this feature do not select the check box when quality is more important than speed Automatic Preview Preview automatically starts when EPSON...

Page 92: ... check box is available only when Pixel Depth is set to 42 bit Color or 24 bit Color in the Image Type dialog box See Using ICM sRGB For Windows Users on page 4 6 for more details ColorSync for Macintosh Select this check box to reproduce the colors in your image using the ColorSync color management system This setting appears only with Macintosh Note If your printer and monitor do not support Col...

Page 93: ...ars 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 After an image is scanned be sure to save it Tool Tip for Windows users When you place...

Page 94: ...3 34 Understanding EPSON TWAIN Features ...

Page 95: ...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 ...

Page 96: ...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 ...

Page 97: ...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 ...

Page 98: ...4 4 Calibrating Your System 2 Click the Utility tab then click the Screen Calibration Utility icon The Screen Calibration dialog box appears ...

Page 99: ... 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 ...

Page 100: ...mation for the preview 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 ...

Page 101: ...be sure to make the 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 Configuration Select ColorSync in the Configuration dialog box 3 Make any other settings you want 4 ...

Page 102: ...4 8 Calibrating Your System ...

Page 103: ... 2 Installing the Film Adapter 5 3 Scanning Transparent Materials 5 4 Film Holders 5 5 35 mm strip film 5 5 35 mm strip film to be scanned from EPSON Photo Print 5 6 120 220 6 cm x 9 cm film 5 6 4 x 5 inch film 5 7 Loading Slides and Film 5 7 Scanning Normal Reflective Documents 5 13 ...

Page 104: ...alternate scanning between transparent materials and normal reflective paper documents Unpacking the Film Adapter When you first open the package make sure that all the following items are included If any items are missing or damaged contact your EPSON dealer immediately Do not throw away the package after unpacking the Film Adapter as it can be used again for storage when you are not scanning tra...

Page 105: ... document cover from the scanner by opening it andpullingitstraight up See Removing the Cover forThick or Large Documents on page 6 5 3 Place the Film Adapter on the document table so that the hinges face the rear of the scanner and it fits on the table 35mm strip film 35mm strip film to be scanned from EPSON Photo Print 120 220 6cm 9cm film 4 5 inch film ...

Page 106: ...tor 5 Turn on the scanner 6 Turn on the Film Adapter Scanning Transparent Materials Byattaching theFilm Adapter youcan scantransparentmaterials such as positive or negative film by passing light through the material The following sections explain how to scan transparent materials ...

Page 107: ...rs are included with this unit To scan film see the instructions below c Caution Hold the film at the edges or else use gloves Touching the film surface with bare hands can leave fingerprints or other traces on the film Note The base side of the film is the side which the film maker s name and film ID numbers are shown 35 mm strip film Insert a strip of film in the 35 mm film holder base side faci...

Page 108: ...ide facing down Slide the strip until all of the frame you wish to scan is positioned inside the film holder opening Note If you plan to scan transparent materials from EPSON Photo Print utility refer to the EPSON Photo Print documentation for details 120 220 6 cm x 9 cm film Insert film in the 120 220 6 cm 9 cm size film holder base side facing down ...

Page 109: ...ndow near the hinges before scanning transparencies You need to select TPU for Neg Film or TPU for Pos Film in the Document Source settings in the Manual mode window depending on the type of film negative or positive you are scanning The scanner software automatically controls the operation of the Film Adapter Follow the steps below to load film or slides c Caution Hold the film at the edges or el...

Page 110: ...ding the base down 2 Load the transparency to be scanned face down on the scanner s document table in the window of the Film Adapter as shown below Loading 35 mm strip film If you are scanning 35 mm strip film use the 35 mm film holder to set the film ...

Page 111: ...Adapter Loading 35 mm strip film to be scanned from EPSON Photo Print If you are scanning 35 mm strip film using EPSON Photo Print use the 35 mm film holder for use with EPSON Photo Print to set the film Note Place the film holder on the document table in alignment with the upper right hand corner of the Film Adapter ...

Page 112: ...n Loading 120 220 6 cm x 9 cm film When scanning 120 220 6 cm 9 cm or similar film use the film holder as shown below Loading 4 x 5 inch film If the film size is 4 5 or similar use the film holder as shown below ...

Page 113: ... film holders place them directly on the document table Loading slides to be scanned from EPSON Photo Print If you are scanning slides or transparencies using EPSON Photo Print place them one at a time directly on the document table in alignment with the upper right hand corner of the Film Adapter ...

Page 114: ...he frame of the film holder is perceived as white causing your scans to appear darker To see the correct color click and drag the mouse over an area then click the Zoom Preview button You can move and adjust the position of 35mm film by sliding the strips inthe film holder so the frames you wantto scanare positioned in the window To remove a film holder from the document table slide it left or rig...

Page 115: ... you will not scan transparencies for a long time you can remove the Film Adapter and store it in the original package Remove the Film Adapter in reverse order as described on Installing the Film Adapter on page 5 3 Note Before scanning in the Full Auto mode remove the Film Adapter and replace the document cover When scanning thin documents you may see an impression of the underside of the Film Ad...

Page 116: ...5 14 Option When you use EPSON SMART PANEL for Scanner to scan and print reflective documents such as photos first remove the Film Adapter and replace the document cover ...

Page 117: ...rted or blurred 6 11 Edges of the document are not scanned 6 11 Colors are patchy or distorted at the edges of the image 6 11 The image is faint or out of focus 6 11 The image is too dark 6 12 Straight lines in the image come out jagged 6 12 The image does not look the same as the original 6 12 A line of dots is always missing from the scanned image 6 13 Colors on your monitor are different from t...

Page 118: ...age 6 17 Colors differ from the original 6 17 Poor character recognition during OCR scanning 6 18 Pressing the button on the scanner does not start scanning 6 18 Scanned image by using the button is missing 6 18 Upgrading from Windows 98 to Windows 2000 6 19 Uninstalling EPSON TWAIN 6 19 During Windows 2000 installation 6 20 Recovering from Scanner Software Installation Problems on Windows 6 20 Fo...

Page 119: ... 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...

Page 120: ...If the lamp breaks or becomes too dim to operate normally the scanner stops working and the indicator light rapidly flashes red 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 ...

Page 121: ...oubleshooting 6 5 Removing the Cover for Thick or Large Documents For thick materials or documents that are larger than the document table remove the document cover 1 Open the document cover 2 Pull the cover straight up ...

Page 122: ...e or storing it for 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 nearest 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 Note If you are...

Page 123: ... See the table in Error Indicator on page 6 8 first If this does not help you solve your problem go to the category for the type of problem you have then look for the problem description The online Color Guide also provides versatile tips and other information helpful for problem solving Note If some settings appear dimmed in EPSON TWAIN they cannot be selected because of the capability of your sc...

Page 124: ... do not need to reset the scanner when this type of error occurs Interface error The interface setup is wrong or the scanner is not properly connected to the computer When this error occurs unplug the scanner 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 Col...

Page 125: ...ourStartup Guide Incorrect operation of your software see your software documentation Also see the documentation that came with your computer and scanner for possible solutions The fluorescent lamp does not come on Make sure the power cord is connected to the scanner and plugged into an electrical outlet If the scanner does not receive any commands after 15 minutes it turns off the lamp The lamp w...

Page 126: ...d a message box and followed by a dialog box requesting the EPSON Scanners Driver Disk appears instead insert the Scanner Software CD in the CD ROM drive Make sure to specify the correct drive letter the EPSON folder the folder of your preferred language and the Win98 for Windows 98 users or Win2000 for Windows 2000 users folder as the location Make sure your computer meets the memory and other sy...

Page 127: ...le Edges of the document are not scanned Position the document so that the area you want to scan is at least 5 mm from the edge guides of the document table Colors are patchy or distorted at the edges of the image A document that is very thick or warped at the edges can cause discoloration Cover the edges of the document with paper to block outside light Make sure the document is flat against the ...

Page 128: ...umenttable Align verticalandhorizontallines with the scales at the top and side of the document table The image does not look the same as the original Try different image setting combinations on your scanner software Your software may not have sufficient color matching and color management features or these components may not be installed correctly See the documentation that comes with your softwa...

Page 129: ... is Color Document or Black White Document in the Manual mode window Colors on your monitor are different from those in the original image Check the image settings of your scanner software especially data format bits pixel color gamma correction and color correction Try different combinations of these settings Check the color matching and color management capabilities of your computer display adap...

Page 130: ...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 The colors of negative film preview images look strange Make sure Document Source is set to TPU for Neg Film in the Manual mode window The da...

Page 131: ...ction between the scanner and the computer Make sure that EPSON TWAIN is selected in your application software Make sure your software is installed correctly For Windows users In the Device Manager menu make sure your scanner s name appears 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 dev...

Page 132: ...apter Make sure the optional equipment is installed correctly See Installing the Film Adapter on page 5 3 Scanning Problems Image is dark with little or no detail Calibratethescreenas describedin Calibrating Your Screen on page 4 2 Change the Destination setting Select Screen Web as the Destination on page 3 13 Selecting a printer may cause on screen colors to be different from the colors of the o...

Page 133: ... Color Document or Black White Document in the Manual mode window Change the Image Type settings Turn the De screening setting On in the Image Type dialog box 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 slightly smaller Colors differ from the original Calibrate the screen See Calibrat...

Page 134: ...nformation Pressing the button on the scanner does not start scanning Make sure EPSON SMART PANEL for Scanner is installing and the EPSON SMART PANEL 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 a...

Page 135: ...and unplug the scanner and then disconnect the scanner from the computer 3 Turn on the computer and install Windows 2000 4 Connectthe scannerandinstallEPSONTWAINfollowingthe instructions in your Startup Guide Uninstalling EPSON TWAIN 1 Connect the scanner to the computer Plug in the scanner then turn on the computer 2 Click Start and point to Settings then select Control Panel 3 Double click the S...

Page 136: ... 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 Installation Problems on Win...

Page 137: ...tallation 1 Plug the interface cable into your scanner and the computer Plug in your scanner and then turn on the computer 2 Right click the My Computer icon on your desktop and then click Properties For Windows 98 users Click the Device Manager tab For Windows 2000 users In the System Properties dialog box select the Hardware tab and then click Device Manager 3 If your EPSON TWAIN is correctly in...

Page 138: ...6 22 Maintenance and Troubleshooting EPSON Perfection 1240 appearing under Other devices with a question mark ...

Page 139: ... Screen shots of Windows 98 are used here for illustration For Windows 98 users If EPSON Perfection 1240 appears under Other devices with a mark Note Make sure your scanner is plugged in and connected to your computer If your scanner is unplugged or not connected to your computer you cannot reinstall the driver properly ...

Page 140: ...thenclickRemoveand OK 2 Click Close to close the System Properties window 3 Shut down your computer and unplug your scanner Then turn on your scanner and computer 4 The following dialog box appears To install the driver again follow the instructions in your Startup Guide ...

Page 141: ...ed or not connected to your computer you cannot reinstall the driver properly 1 Click EPSON Perfection 1240 and then click Remove and OK 2 Click Close to close the System Properties window 3 Shut down your computer and turn off your scanner Then turn on your scanner and computer 4 When a message appears to prompt you to insert the scanner software CD insert the CD in the CD ROM drive and then clic...

Page 142: ...tion 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 computer If your scanner is unplugged or not connected to your computer you cannot reinstall the driver properly 1 If EPSON Perfection 1240 appears under Other devices with a question mark or under Imaging devices with an exclamation mar...

Page 143: ...Maintenance and Troubleshooting 6 27 EPSON Perfection 1240 appearing under Other devices with a question mark EPSON Perfection 1240 appearing under Imaging Device with an exclamation mark ...

Page 144: ...age processing read this section While it does not contain specific recommendations it describes various possibilities for improving your scanning system For further information seek advice from your dealer or an experienced scanner user RAM and hard disk size Scanned images use much more memory than text files so you may need more RAM Random Access Memory in your computer and a larger hard disk t...

Page 145: ... monitor affects the quality of the image yousee Considerahighresolutionmonitorifyoudoprecise color work but also be sure you have a high quality video card File compression 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 44 MB floppy disk and compress images and restore t...

Page 146: ...6 30 Maintenance and Troubleshooting ...

Page 147: ...ts A 2 For PCs A 2 For Macintosh computers A 2 Scanning A 3 Electrical A 4 AC Adapter A 5 Environmental A 6 Safety Approvals Scanner A 7 Safety Approvals AC Adapter A 8 CE Marking Scanner A 9 CE Marking AC Adapter A 10 USB Interface A 11 Initialization Methods A 12 Film Adapter A 13 ...

Page 148: ...commended 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 product documentation for details System USB equipped Macintosh with Mac OS 8 1 or later Interface Macintosh USB Display Color Monitor 640 480 screen resolution or higher recommended a...

Page 149: ... 7200 dpi and 9600 dpi performed with zoom function Color separation RGB color filters on CCD Zoom 50 to 200 in 1 increments Image data 14 bits per pixel per color internal 14 bits per pixel per color external Brightness 7 levels In EPSON TWAIN Gamma correction controls Brightness Line Art settings Fixed threshold Text Enhancement Technology enable disable selectable Halftoning process AAS Auto Ar...

Page 150: ...nly user defined Color correction is available in EPSON TWAIN Interface USB Type B Receptacle Connector Light source White cold cathode fluorescent lamp Reliability 30 000 cycles of carriage movements main unit MCBF Dimensions Width 269 mm 10 6 inches Depth 435 mm 17 1 inches Height 93 mm 3 7 inches Weight Approx 2 8 kg 6 2 lb Input voltage range DC 24 V Rated current 0 8 A Power consumption Appro...

Page 151: ...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 ...

Page 152: ...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 ...

Page 153: ...Technical Specifications A 7 Safety Approvals Scanner 120V model 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 ...

Page 154: ...ns Safety Approvals AC Adapter 120V model 230V model 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 ...

Page 155: ...Technical Specifications A 9 CE Marking Scanner 230 V model EMC Directive 89 336 EEC EN 55022 Class B EN 50082 1 IEC 60801 2 IEC 60801 3 IEC 60801 4 ...

Page 156: ...nical Specifications CE Marking AC Adapter 230 V model Low Voltage Directive 73 23 EEC 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 ...

Page 157: ... specific Vendor ID 0x04B8 Seiko Epson Corp Product ID 0x010B Configuration Characteristics Self powered Remote wake up feature is not supported Maximum power consumption from VBUS 2 mA 5 V 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...

Page 158: ...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 ...

Page 159: ...ty Operation 10 to 80 without condensation Storage 10 to 85 without condensation Reliability Light Source 10 000 hours for light source MCBF Document Transparencies up to 4 5 inches film 35 mm strip film 35 mm slide 120 220 size 6 cm 9 cm strip film 4 5 inches film Manuscript Up to 4 5 inches film size Readable area 93 118 mm Dimensions Width 222 mm 8 7 inches Depth 305 mm 12 0 inches Height 36 mm...

Page 160: ...A 14 Technical Specifications ...

Page 161: ...Contacting Customer Support B 1 Appendix B Contacting Customer Support Overview B 2 ...

Page 162: ... 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...

Page 163: ...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...

Page 164: ... 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...

Page 165: ...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...

Page 166: ...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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Epson Series Perfection 1240U Series, Reference Manual

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