Canon CanoScan 2700F User's Guide PDF

Pages 80
Year 1998
Language(s)
English en
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Summary of Content for Canon CanoScan 2700F User's Guide PDF

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STEP 2 Scanning Preparations ... 15 Displaying the Plug-in module FS Control Panel ... 16 Selecting a Film Type ... 18 Previewing ... 19 Setting the Scan Mode ... 20 Selecting the Output Device ... 23 Setting the Magnification ... 24 Setting Preferences ... 26

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STEP 4 Adjusting and Editing Scanned Images ... 44 Optimum Adjustments for Image Quality ... 45 Color Correction ... 46 Color Correction - Histogram Setting... 48 Color Correction - Brightness and Contrast Settings ... 50 Color Correction - Color Balance ... 52 Color Correction - Tone Curve Settings ... 54 Color Correction - Gamma Value Settings ... 56 Color Correction - Threshold ... 58 Film Correction - Focus Correction ... 60 Film Correction Exposure Adjustment ... 62 Auto Tone Correction (ColorSync) ... 64 Saving / Recalling Settings ... 65 Editing Scanned Images ... 67

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Refer to the following pages for descriptions of the control panel menus and buttons that you will be using in Plug-in module FS...

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Save the Scanned Image If the current brightness and color pose no problem, there is no need to adjust these settings...

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See the Results of Adjustments Immediately (Dynamic Preview) Once in preview mode, the results of adjustments to scan mode settings and colors are promptly reflected in the preview image... Highly detailed adjustments can be performed easily because you can see the results of your changes as they are executed...

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Those who wish to start scanning immediately should follow the procedures below... If you require further information at any stage, read the pages referenced at each step...

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2... Move the selection tool to specify the area of the image you want verified and click the mouse button... Plug-in module FS will read the image and display the browser image...

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closing after scanning in Plug-in module FS... If the control panel is not set for closing after scanning in Plug-in module FS, the control panel remains open so you can continue to scan... (p... 27)

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You only have to follow the displayed messages of the CanoScan Setup Utility CD-ROM to

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Caution Before you can install Plug-in module FS, you must have installed Photoshop (Ver... 3... 0 or higher) on your hard disk... Install this program before attempting to install Plug-in module FS... If nothing has been installed beforehand, install Photoshop LE provided with the package...

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Place the CanoScan Setup Utility CD-ROM in the CD-ROM drive...

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Click the Start Installation button at the lower right... The installer program will now start and continue without interruption... Follow the instructions on the screen to complete the installation...

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Step 2 presents the essential preparations for scanning... The following

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RGB Display When a color image is displayed in the Preview window, the color balance (RGB values) is displayed here for the area of the image where the pointer is positioned...

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Select Plug-in module FS from within Photoshop... Select [File] from the menu bar and choose the [Import] and [CanonPI FS 3... 6] options in succession...

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Film Characteristics The various film types have distinctly different characteristics... Exposure latitude, for example, is not the same for negative and positive films... Negative films provide greater latitude because the exposure can be adjusted when prints are made... Positive films require greater precision when a picture is taken... In addition, positive film can produce a starker contrast between shadows and highlights without producing sepia tones...

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Before an image is scanned, it is advisable to preview the image... The Preview function will read the image once and present the entire film image in the Preview window... Use the Preview window to review the image as it will be scanned and to make any re- quired adjustments to the color balance or scan area...

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12bit Grayscale Mode (FS2710 only) In the 12bit grayscale mode, each dot is formed by assigning it 12 bits... In this mode one dot can be expressed in 4,096 individual shades... The size of an image saved in this mode is approximately twice the size of an 8bit grayscale mode image... However, the displayed image is the same as the 8bit grayscale mode image be- cause the difference in the image quality cannot be accurately reproduced on the screen... Use this mode when you need an monochrome image with finely attenu- ated shades of gray...

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36bit Color Mode (FS2710 only) In this mode, each dot is formed by assigning it 12 bits to represent each of the RGB colors, which add up to 36 bits... This mode creates a color smoother than the color created with the 24bit color mode... The size of an image saved in this mode is approximately twice the size of a 24bit color image... However, the displayed image is the same as the 24bit color mode because the difference in image quality cannot be accurately reproduced on the screen... Use this mode when you need a color image with finely attenuated color tones...

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Hint Scanning the same image in the five different scan modes produces different file sizes... By size, Black & White mode requires the least disk space, followed in order by the 8bit Grayscale and 12bit Grayscale modes and the 24bit Color and 36bit Color modes... Before scanning, check the data volume indicator on the control panel...

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Hint The devices appearing in the Output Device pull-down menu can be specified by the user... Settings can also be specified for devices that are not already represented in the default list... See Procedures for Setting the Output Device List (p... 26)...

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Hint Magnification and Resolution Why does the image size change with the magnification? Let us answer this with an example using an Printer (360 dpi) output device... If you were to scan an image with this device setting and set the magnification factor to 50%, the scanning resolution will automatically change to 180 dpi... At this setting, the image will be scanned at a resolution of 180 dpi and the output device will convert this to 360 dpi, shrinking the size of the output in the process because it will only have half the data with which to fill the space...

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Hint The Relationship Between Data Volume and Scanning Resolution The higher the magnification and scanning resolution settings, the greater the file size of scanned images... There are certain inconveniences associated with overly large data volume, such as the inability to fit a file on a single floppy disk and the risk of causing a temporary computer slowdown by overwhelming its processing capabilities... A typical 35 mm picture scanned with the 24bit Color mode may produce files in the following sizes, which correspond to the scanning resolutions shown...

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The operating environment can be adjusted to accommodate prefer- ences for the type of output device, the aspect ratio, the units for sizing images, the size of the preview window and the scan settings... Default factory settings for these categories can also be easily reset... Adjustments are made to the operat- ing environment with the [Preferences] menu on the control panel...

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Select a device by clicking on its name... A check mark will appear beside the selected devices... Deselect a device by clicking its name again... You may not deselect [File (2720 dpi)]... Always ensure that a check mark appears beside this item...

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Constrained When resizing the scan area, the width and height are set at fixed proportions so that the shape remains constant over different sizes... This feature is convenient for working with particular film formats... The following constrained settings are available: Custom Any ratio may be specified... Classic (C Type) The width-to-height ratio is 3 to 2... Panorama (P Type) The width-to-height ratio is 3 to 1... Hi-Vision TV (H Type) The width-to-height ratio is 16 to 9...

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If the Constrained setting is selected above, this item becomes active and will display the pull-down menu below when clicked...

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Click on the [Preferences] menu in the control panel and select [Unit]... The Unit Settings dialog box will appear...

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Difference Between the Preferences File and Settings Files... Plug-in module FS creates two kinds of files to keep track of settings... The various settings that are adjusted with the control panel are automatically saved in the default setting file, which is located in the System folder... These settings determine how Plug-in module FS behaves when it is restarted... In contrast, settings files are intended for saving particular groups of settings that are used often... The names of settings files can be freely chosen by the user... See Saving/Recalling Settings (p... 65)...

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Selecting the Scan Settings Plug-in module FS generally adjusts the auto exposure and auto focus settings at the preview stage... You can also have it adjust these settings at the other stages... This results in a better image, but scanning and browsing may require more time... To have it adjust the settings at all stages, enable the [Set Exposure Value and Focus Value when Scan- ning] option with the procedures below...

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Scan Mode ... 24bit Color Magnification ... 100% Histogram ... Highlight: 255, Shadow: 0 Color Correction ... Gamma Value (1... 4) Color Correction Brightness/Contrast ... Brightness: 0, Contrast: 0 Color Correction Color Balance ... 0 Color Correction Tone Curve ... Straight line Color Balance Threshold ... 128 ColorSync ... Off Auto Focus ... On Auto Eject ... On Film Type Setting ... 35 mm Color Neg... Unit ... Pixels Output Device ... File (2720 dpi) Preview Window ... Normal Driver after scanning ... Close Set Exposur Value and Focus Value when scanning ... Enabled Control Panel Position ... Center

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After a film has been scanned, it can be ejected from the scanner automatically with the Auto Eject function... The film is ejected to a position approximately 1 centimeter ahead of its normal position, making it easier to remove from the scanner... The default factory setting is Auto Eject = On... If you wish to scan the same piece of film repeatedly, it is advisable to set the Auto Eject setting to Off to speed up the process...

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Before initiating the final scan, it is advisable to check the intended results with the Browser function... The image in the Browser window is more accurate than the one in the Preview window, allowing you to verify the results more precisely before scanning...

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Click the mouse button when the Selection Tool is in the correct position... The film will be read and the browser image displayed in the middle of the monitor...

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The steps are listed below with their respective page numbers...

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Use the image in the preview area to select the actual area that you want to scan... Clicking the Preview button causes the Selection Tool to automatically appear as a rectangle with dotted lines on the preview image... You may adjust the size and shape of the Selection Tool...

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Plug-in module FS is equipped with a zoom function that permits the enlarged display of a specified portion of the preview image... Use the zoom function to specify the scan area with high precision or to select small areas...

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Hint An image that appears in the Preview window at the normal size can be zoomed four times successively... An image appearing at a magnification of 2 times can be zoomed three times successively... See Preview Window Size (p... 31)...

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module FS control panel does not close... You can correct this with the [Pre- view Window] command on the [Preferences] menu... (p... 31)

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An image may be rotated or reversed before scanning... As with a normal scan, Plug-in module FS automatically closes and returns to Photoshop once the scan is complete...

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Scanned images are saved in Photoshop... Before you save a scanned image in Photoshop, you must select the file type for the saved image and select other settings... On the Macintosh the PICT and TIFF file types are commonly used for saving scanning images... The procedure below describes saving a scanned image as a PICT file with Photoshop LE... For details about using Photoshop LE, refer to the Photoshop LE electronic manual...

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Color Correction: Brightness and Contrast Settings p... 50 Color Correction: Tone Curve Settings p... 54

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Are you satisfied with the quality of the preview image? You can create images of acceptable quality with the Plug-in module FS 3... 6 default settings... However, if there is a problem with the original film that requires correction, you can use the color correction or film correction features to correct the problem... This section provides an overview of the methods you can use to correct minor prob- lems in images... For details about a method, refer to the referenced page...

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Brightness/Contrast (p... 50) Brightness is the overall amount of lightness or darkness in an image... Contrast is the difference between the lightest and darkest parts of an image... Before scanning and acquiring an image, you can make adjustments if the original is too bright, too dark or blurred... You can use Brightness/Contrast to adjust the following types of files: 8-bit grayscale, 12-bit grayscale, 24-bit color and 36-bit color...

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Gamma (p... 56) Gamma allows you to enhance the overall image... Use Gamma adjustment when the color of the original does not match the color of the displayed image... You can use Gamma with the following types of files: 8-bit grayscale, 12-bit grayscale, 24-bit color and 36- bit color...

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How to Adjust Histograms To change the contrast in an image, the distribution of data between shadows and highlights can be adjusted by dragging the shadow and highlight marks at the bottom of the histogram... All of the data lying to the outside (left) of the shadow mark is changed to a zero value and all of the data lying to the outside (right) of the highlight mark is changed to a 255 value... The examples below show adjustments to improve the contrast... Leave the setting on Auto Correction for histogram correction of most scanning jobs...

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The histogram will not display correctly if an extremely small area is selected... To select small areas, first expand the display with the Zoom In button... See Zooming (p... 39)...

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Adjusting the brightness and contrast sliders corrects the color tone... If the original image is too dark, too light or indistinct, use these settings to correct the image... The method is applicable to 8-bit grayscale, 12-bit grayscale, 24-bit color (when ColorSync is off) and 36-bit color images...

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Click on the [Color Correction] button in the control panel... The Color Correction dialog box will appear... Open the Image Correction menu in the operation panel and select Color Correc-

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Use Color Balance to change the brightness and contrast for each primary color: R (red), B (blue), G (green)... You can adjust the color balance with this tool for 24-bit (when ColorSync is off) and 36-bit color images...

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Click the Color Correction button... The Color Correction dialog box will open... You can also click on the [Image] menu in the operation panel and select [Color Correction] to open the Color Correction dialog box...

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Precise changes to the tone settings of an image can be made by directly editing the tone curve... This enables you to make subtle changes to the brightness of only the shadows or highlights, if desired... The method is applicable to 8-bit grayscale, 12-bit grayscale, 24-bit color (when ColorSync is off) and 36-bit color images...

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Displays the input/output levels 0 (shadow) to 255 (highlight) of the control point currently under the pointer and frame in the preview area... The larger the output value in relation to the input value, the brighter the image will become...

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Gamma value Plug-in module FS and the display monitor have different gamma values... During a scanning job, Plug-in module FS receives the image from the scanner as input and sends it to the parent application as output... The gamma value in this interval where Plug-in module FS converts input to output is the Plug-in module FS gamma value... On the other hand, the data received from Plug-in module FS as input is sent to the display monitor as output... The gamma value in this interval where the image input from Plug-in module FS is converted to output for the display monitor is the display monitor gamma value... Setting the display monitor gamma value causes the scanner gamma value to be calibrated automatically as the inverse value... For example, if the display monitor gamma value is set to 1... 4, then the scanner gamma value is calibrated at 0... 71 (the inverse of 1... 4)...

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Click on the [Color Correction] button in the control panel... The Color Correction dialog box will appear... You can also click on the [Image Correction] menu in the operation panel and

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Adjusts the brightness of dithered images In the dithering mode, the mid-tones of a photograph, are converted to either black or white based on the threshold setting... The threshold setting is the point at which a gray pixel is judged to become either black or white... The setting can be specified as a number in the range from 1 to 255... Pixels judged to be below the threshold setting are converted to black and those above the setting are converted to white... Therefore, the higher the threshold setting, the darker the image, and the lower the threshold setting, the lighter the image...

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Click the [Clor Correction] button... The threshold panel is displayed in the Color Correction dialog box... You can also click on the [Image] menu and select [Color Correction] to open the

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Film placed within a scanner may shift position to a small extent, throwing the focus out when scanning or previewing... To scan correctly, it may be necessary to adjust the focus... This can be accomplished manually or automatically... You are recommended to try auto focus first... If an image remains blurred, you can then try to focus it manually...

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Hint The change in focus will not be reflected in the preview area after you click the OK button in the Focus setting dialog box... The new focus value will not be enabled until the image is acquired again...

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Film is scanned by collecting the light that is passed through it... This makes it possible to adjust the brightness of the image by changing the amount of light (exposure) used to scan it... This is adjusted by changing the scan speed... With the Auto setting in Plug-in module FS, exposure adjustment is automatic... This setting should be used for most scanning jobs... If, however, you cannot achieve the effect you want with the Auto setting, you can manually overexpose or underexpose the image to create a special effect... Overexposing the image produces a lighter image... The scanning speed will be accelerated for negative film and slowed down for positive film... Underexposing the film produces a darker image... The scanning speed will be slowed for negative and film and accelerated for positive film...

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2700F Film Type Settings The colors used in the film base of negative films varies between manufacturers and individual products... To adjust the exposure manually with the 2700F, you must specify the film type to reproduce image colors correctly... This is not required for positive films because the film base is not colored...

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When the scan mode is set to 24bit Color, color correction is automatically conducted by the ColorSync function... The ColorSync function automatically matches the tones produced and displayed by scanners, displays and color printers... Optimal color correction is achieved with ease without having to make adjustments with the histogram or other color correction functions...

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The film type, scan mode and preference settings can be saved to a settings file and recalled for future processing... The user may freely assign a name to the settings file... It is convenient to save frequently used settings to a file...

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Click on the [Open] button... All the control panel settings saved in the selected settings file are enabled and replace the current settings...

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Scanned images can be edited as required using Photoshop... In this example, we provide a simple demonstration of how to use the filter functions of Kais Power Tools, a plug-in module for Photoshop... For details about the editing methods, see the Photoshop electronic manual...

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Scan Modes: Black & White, 8bit Grayscale, 12bit Grayscale, 24bit Color, 36bit Color

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Solution 1: If more than one SCSI device is in use, check to ensure that each device has been assigned a unique SCSI ID and none are duplicated... If duplication has occurred, assign a unique SCSI ID to the scanner...

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Solution: Color correction cant be utilized in the Black & White mode or when ColorSync is active in the color mode... Set the mode to Grayscale or Color with the ColorSync inactive before attempting the color correction...

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Reduce the scan area to the minimum possible scope and lower the resolution and magnification settings for the output device...

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Film HG100 HG400 REALA REALA ACE SUPER G100 SUPER G200 SUPER G400 SUPER ACE G100 SUPER ACE G400 SUPER V 100 EKTAR 25 EXTAR 100 GOLD 100 GOLD 400 SUPER GOLD 100 SUPER GOLD 200 SUPER GOLD 400 DD 100 DD 400 IMPRESA 50 JX 100 LV 100 LV 200 LV 400 XG 400 HDC 100 HDC 400 OPTIMA 100 OPTIMA 400 ULTRA 50 XRG 100 XRG 200 XRG 400 XRS 100 XRS 400

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Gamma Correction The process whereby variations in color tones from the output of monitors, printers and other output devices are made consistent with the source (input) document... With Plug-in module FS, gamma correction for a monitor can be conducted with the Gamma Value Settings function... Gamma values are expressed as numbers: 1 is the standard value, numbers lower than 1 brighten the output and numbers higher than one darken the output... A graph function, the Tone Curve (gamma curve), is also available in Plug-in module FS to make adjustments to gamma values (p... 56)...

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Negative Film Negative film can be either monochrome (black and white) or color film, but negative film generally refers to color negative film... Negative film is used to make color prints where the light and dark colors of the image are reversed and colors are converted to their complements... For example, blue is reversed to yellow, and yellow to blue... Just by looking at the image, you cannot recognize the original colors... A fundamental characteristic of color negative film is that it uses orange as its base color...

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Symbols [180 Clockwise Rotation] button 5, 42 [90 Clockwise Rotation] button 5, 42 [90 Counterclockwise Rotation] button 5, 42 [Auto Correction] button 5, 49 [Browser] button 5, 9, 35 [Color Correction] button 5, 49 [Eject] button 5 [Flip] button 42 [Preview] button 5, 8, 19 [Reverse] button 5 [Scan] button 10, 41 [Zoom In] button 5, 39 [Zoom Out] button 5, 40 [Zoom Reset] button 5, 40 12-bit grayscale image 73 12bit Grayscale mode 20 24-bit color image 73 24bit Color mode 21 36-bit color image 73 36bit Color mode 21 8-bit color image 73 8-bit Greyscale image 73 8bit Greyscale mode 20

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S Save 43 Saving 65 Scan area 38 Scan button 5 Scan mode 20 Scan settings dialog box 32 Scanning 41, 74 Scanning procedures 6 Scanning resolution 24 Selection frame 9 Selection tool 35, 38 Shadows 48 System software 12

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While every effort has been made to ensure that the information contained in this guide is accurate and complete, no liability can be accepted for any errors or omissions... Canon Inc... reserves the right to change the specifications of the hardware and software described within this guide at any time without prior notice...

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CANON (UK) LTD... Canon House, Manor Road, Wallington, Surrey SM6 0AJ, United Kingdom For technical support, please contact the Canon Helpdesk: Helpdesk P... O... Box 431, Wallington, Surrey SM6 0XU TEL: (0990) 143 723 (Calls may be recorded) FAX: (0990) 143-340 BBS: (0990) 143-350 CANON FRANCE S... A... Centre d'Affaires Paris-Nord, 93154 Le Blanc-Mesnil Cedex, France Standard: (1) 49 39 25 25 Hotline: (1) 49 39 28 90 Tlcopie: (1) 49 39 25 50 CANON DEUTSCHLAND GmbH Europark Fichtenhain A10, 47807 Krefeld, Postfach 528, 47705 Krefeld, Germany TEL: 02151/345-0 FAX: 02151/345-102 CANON- Hotline-Service Customer Support: 02151/349-555 Info-Desk: 02151/349-566 Mailbox: 02151/349-577 Telefax: 02151/349-588 CANON OY AB Kornetintie, 3, 00380 Helsinki, Finland CANON SVENSKA AB S-127 88, Skrholmen, Sweden CANON DENMARK Vasekaer 12, DK-2730 Herlev, Denmark CANON NORGE AS Hallagerbakken 110, Boks 33, Holmia 1201 Oslo, Norway CANON BENELUX NEDERLAND B... V... Neptunusstraat 1, 2132 JA Hoofddorp, The Netherlands CANON BENELUX BELGIUM N... V... /S... A... Bessenveldstraat 7, 1831 Diegem, Belgium CANON GmbH Zetschegasse 11, 1232 Wien, Austria CANON (SCHWEIZ) A... G... Industriestrasse 12, CH-8305 Dietlikon, Switzerland CANON ESPAA S... A... C/Joaqun Costa No 41, 28002 Madrid, Spain

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Art Direction: Yoshisuke Kuramoto, CDS Inc... , Tokyo, Japan Design: Sumio Koike, J-Cat Communications, Vancouver, Canada Writing: Ayako Tanaka, CDS Inc... , Tokyo, Japan Translation: Christian R... P... Cowley, Concise Communications Corporation, Vancouver, Canada Illustration: Torahiko Omura, Moma-room, Tokyo, Japan Cover Photo: Hideyuki Igarashi & Sumio Koike, J-Cat Communications, Vancouver, Canada Other Photos: Yoshisuke Kuramoto, CDS Inc... , Tokyo, Japan

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1198 CDS Canon Inc... 1998 Adobe Acrobat PDF created in Japan

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