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Canon CanoScan D646U User Manual
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Canon CanoScan D646U User Manual

Canon CanoScan D646U User Manual

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  • Page 1 ScanGear CS-U 6.0 for CanoScan D646U Color Scanner User’s Guide...
  • Page 2 This manual is copyrighted with all rights reserved. Under the copyright laws, this manual may not be copied, in whole or in part, without written consent of Canon Inc. Under the law, copying includes translating into another language or format.

  • Page 3: Table Of Contents

    Table of contents Top Page Glossary Chapter 1 Before You Begin ........ Welcome to ScanGear CS-U ............Contents System Requirements ..............Hardware ................Index Software ................Getting Help in ScanGear CS-U..........Chapter 2 Installing ScanGear CS-U ....Installing ScanGear CS-U ............Installing ScanGear CS-U ...........
  • Page 4 Table of contents Top Page Glossary Chapter 5 Scanning an Original ......Preparing for the Scanning Job ..........Contents Quick Start ................Previewing and Scanning an Original ........Index Scanning in the Simple Mode ..........Scanning in the Advanced Mode ........Chapter 6 Settings in the Windows Control Panel ..68 Opening Scanners and Cameras Properties ......

  • Page 5: Chapter 1 Before You Begin

    chapter Top Page Glossary Contents Index Before You Begin Welcome to ScanGear CS-U System Requirements Getting Help in ScanGear CS-U...

  • Page 6: Welcome To Scangear Cs-U

    Index ScanGear CS-U 6.0 (hereafter referred to as ScanGear CS-U) will provide flexible, efficient image enhancement tools for scanning with your CanoScan D646U Scanner by providing an interface with a variety of TWAIN-compliant software applications. (TWAIN p.97) ScanGear CS-U has a number of powerful features that help you achieve peak performance with your scanner.
  • Page 7 chapter 1 Before You Begin Top Page Glossary Normally when you start a scanning job, you will see the ScanGear CS-U main window with its toolbar, Preview Area, and tabs. Contents However, some software applications may not open the ScanGear CS-U main window.

  • Page 8: System Requirements

    chapter 1 Before You Begin Top Page Glossary System Requirements Contents The hardware and software listed below is required to use ScanGear Index CS-U. Hardware • You can use following scanner with ScanGear CS-U: CanoScan D646U. • IBM PC or its compatible on which Windows Me, Windows 98 or Windows 2000 Professional can run •...

  • Page 9: Software

    chapter 1 Before You Begin Top Page Glossary Software Contents ® ® ® ® ® • Microsoft Windows Me, Microsoft Windows 98 or Microsoft Index Windows ® 2000 Professional • TWAIN-compliant parent software application...

  • Page 10: Getting Help In Scangear Cs-U

    chapter 1 Before You Begin Top Page Glossary Getting Help in ScanGear CS-U Contents Index For information about using ScanGear CS-U, open the on-line Help by clicking the Help button on the toolbar or in the dialog boxes. Click the Contents or Index tab to see if the topic you are looking for is covered elsewhere in on-line Help.

  • Page 11: Chapter 2 Installing Scangear Cs-U

    chapter Top Page Glossary Contents Index Installing ScanGear CS-U Installing ScanGear CS-U Uninstalling ScanGear CS-U...

  • Page 12: Installing Scangear Cs-U

    chapter 2 Installing ScanGear CS-U Top Page Glossary Installing ScanGear CS-U Contents Before you install ScanGear CS-U, make sure that you have accomplished Index the following tasks: • Make sure that the computer is equipped with an enabled USB port. In My Computer - Control Panel - System icon, click the Device Manager tab and double-click “Universal serial bus controler”.

  • Page 13: Installing Scangear Cs-U

    chapter 2 Installing ScanGear CS-U Top Page Glossary Installing ScanGear CS-U Contents Windows Millennium Edition (Me) • Index After you have attached the scanner to the computer, have the CanoScan Setup CD-ROM at hand and follow the procedures below to install the driver software (ScanGear CS-U). If you use the English version (uni-language) CanoScan Setup Utility CD-ROM;...
  • Page 14 chapter 2 Installing ScanGear CS-U Top Page Glossary When the [Windows has finished installing the new hardware device.] message appears, click the [Finish] button. Contents Index If the window in Step 2 does not appear, ScanGear CS-U may not have been completely uninstalled and a portion of it may still be resident on the drive.
  • Page 15 chapter 2 Installing ScanGear CS-U Top Page Glossary Place the CanoScan Setup Utility CD-ROM in the drive. Contents Wait for approximately 10 seconds. Click the [Removable Media...] option so that it is unchecked, and click the [Specify a location] Index option so that it is checked.
  • Page 16 chapter 2 Installing ScanGear CS-U Top Page Glossary Windows 98 / Windows 2000 Professional • Contents Follow this procedure to install ScanGear CS-U. To perform this Index procedure you need CanoScan Setup Utility CD-ROM. Connect the scanner and computer with the USB cable. Then turn on the computer.
  • Page 17 chapter 2 Installing ScanGear CS-U Top Page Glossary Confirm that the first button is selected (Search for the best driver for your device) and click the [Next] button. Contents Index Insert the CanoScan Setup Utility CD-ROM into the CD-ROM drive. If you use the English version (uni-language) CanoScan Setup Utility CD-ROM, select the “CD-ROM drive”...
  • Page 18 chapter 2 Installing ScanGear CS-U Top Page Glossary Confirm the name of the scanner is displayed, and click the [Next] button to start copying the files. Contents Index When you are prompted to insert the Windows 98 CD-ROM, after clicking the [OK] button, click the [Browse] button . Specify the CanoScan Setup Utility CD-ROM drive as the file source, then click the [OK] button.

  • Page 19: Uninstalling Scangear Cs-U

    chapter 2 Installing ScanGear CS-U Top Page Glossary Uninstalling ScanGear CS-U Contents Index Always uninstall ScanGear CS-U with this procedure using the CanoScan Setup Utility CD-ROM Note Place the CanoScan Setup Utility CD-ROM in the drive. Click the [Uninstall the Software] button in the CD-ROM’s menu window.

  • Page 20: Chapter 3 Simple Mode And Advanced Mode

    chapter Top Page Glossary Contents Index Simple Mode and Advanced Mode What are the Simple Mode and Advanced Mode? Simple Mode Main Window Advanced Mode Main Window...

  • Page 21: What Are The Simple Mode And Advanced Mode

    chapter 3 Simple Mode and Advanced Mode Top Page Glossary What are the Simple Mode Contents and Advanced Mode? Index You can run ScanGear CS-U in either of two modes: the Simple Mode and Advanced Mode. Simple Mode The Simple Mode, as its name implies, is easy to use and fast. You can set up a scanning job quickly just by selecting from the name that best describes the job you want to execute: Color Photo, Color Photo Fine, B&W Photo, and so on.

  • Page 22: Switching Between The Simple And Advanced Modes

    chapter 3 Simple Mode and Advanced Mode Top Page Glossary Switching Between the Simple and Advanced Contents Modes Index You can switch between the Simple and Advanced Modes simply by clicking a button. • In the Simple Mode main window, click the Advanced Mode button to open the Advanced Mode main window.

  • Page 23: Simple Mode Main Window

    chapter 3 Simple Mode and Advanced Mode Top Page Glossary Simple Mode Main Window Contents Index The ScanGear CS-U main window in the Simple Mode has only one sheet, named “Simple Mode” followed by the name of your scanner. Use the Simple Mode sheet settings to select the settings for a scanning job.

  • Page 24: Advanced Mode Main Window

    chapter 3 Simple Mode and Advanced Mode Top Page Glossary Advanced Mode Main Contents Window Index The ScanGear CS-U main window in the Advanced Mode has more sheets to perform the settings for scanning. In the Advanced Mode click the Main tab , Tone tab (or Halftone tab), or the Scanner tab to open the Main sheet, Tone sheet (or Halftone sheet) or Scanner sheet.
  • Page 25 chapter 3 Simple Mode and Advanced Mode Top Page Glossary If you select Black and White or Text Enhanced(OCR) for the Color Mode on the Main sheet, the Tone tab is replaced with the Halftone tab. Contents Index...

  • Page 26: Chapter 4 What Is On The Screen

    chapter Top Page Glossary Contents Index What is on the screen? Main Window Toolbar Scanning Buttons Simple Mode Main Window Advanced Mode Main Window...

  • Page 27: Main Window

    chapter 4 What is on the Screen? Top Page Glossary Main Window Contents Index Tool Bar Title Bar Setting Tab Preview Button Scan Button Clear Button Close Box Preview Area Status Area Window Resize Corner Mode Switching Button...

  • Page 28: Toolbar

    chapter 4 What is on the Screen? Top Page Glossary Toolbar Contents Buttons on the toolbar help you to perform important tasks like, Index cropping images, moving images, zooming, and so on. Crop Button Click the Crop button and drag the pointer in any direction to draw a rectangle around the area you want to select for scanning.

  • Page 29: Auto Crop Button

    chapter 4 What is on the Screen? Top Page Glossary Zoom Tool Button Click the Zoom Tool button and then click the left or right mouse button Contents to change the size of the Preview image. Index • To increase the magnification of the image, click the Zoom Tool button then click the left mouse button on the area of the previewed image to view.
  • Page 30 chapter 4 What is on the Screen? Top Page Glossary Rotate Right Button Click the Rotate Right button to rotate a scanned image right 90 degrees Contents (clockwise). Click this button repeatedly to continue rotating the image Index right. Rulers Button Click the Rulers button to display a ruler in the Preview Area to help with sizing and cropping the image.

  • Page 31: Scanning Buttons

    chapter 4 What is on the Screen? Top Page Glossary Scanning Buttons Contents Index Preview Button Click the Preview button to pre-scan the image and display it in the Preview Area so you can decide whether the image needs any adjustments or if you want to apply any special effects.

  • Page 32: Simple Mode Main Window

    chapter 4 What is on the Screen? Top Page Glossary Simple Mode Main Window Contents In the Simple Mode, only the Simple Mode sheet is available in the main Index window. Image Type When you select the Image Type based on how you intend to use the scanned image, the Color Mode and Resolution settings are selected for you automatically for optimum scanning results.
  • Page 33 chapter 4 What is on the Screen? Top Page Glossary Use to scan black-and-white photographs with varying shades of gray. Contents •B/W Photo Fine (Grayscale, 300 dpi): Index Use to scan black-and-white photographs with varying shades of gray for best quality in the scanned image. •Line Art (Black and White, 300 dpi): Use to scan of a black-and-white original that contains a graphic illustration.
  • Page 34 chapter 4 What is on the Screen? Top Page Glossary Contents • The Text Enhanced (OCR) and Grayscale selections require more time that the Black and White setting Index in order execution digitization of the scanned Note images. • Selecting the Color Mode setting automatically resets the Advanced Mode Tone tab settings.

  • Page 35: Edit Image Type Button

    chapter 4 What is on the Screen? Top Page Glossary Resolution Displays the Resolution setting for the currently selected Image Type. And the Contents Resolution can be set to one of the settings provided. In this case, a new Image Type can be saved under a new name. Index Edit Image Type Button Click the down-arrow for Image Type and select Custom (or select a...
  • Page 36 chapter 4 What is on the Screen? Top Page Glossary Paper Size Specifies the paper size of the image to be scanned. Contents Changing the Paper Size clears the Preview area and Index clears all settings set with the Toolbar and Tone sheet buttons.

  • Page 37: Advanced Mode Main Window

    chapter 4 What is on the Screen? Top Page Glossary Advanced Mode Main Contents Window Index The Main Sheet Color Mode The Color Mode determines how the original will be scanned: Black and White, Grayscale, Color, etc.Click the down-arrow and select a setting from the drop-down list.

  • Page 38: Color

    • Color The image is scanned in color. Contents • Text Enhanced (OCR) Converts grayscale images to black and white using Canon ImageTrust technology. This setting produces Index sharper text which will be easier for OCR software to read. •...
  • Page 39 chapter 4 What is on the Screen? Top Page Glossary Output Resolution Contents Click the down-arrow and select one of the pre-set Resolution settings to set the resolution for the scanning job. The default setting is 75 dpi. Index Resolution can be set within the range of 25 dpi - 2400 dpi (entering a value into the entry box adjusted in increments of 1 dpi is also possible), or values of 4800, 7200 or 9600 can be entered directly.
  • Page 40 chapter 4 What is on the Screen? Top Page Glossary Selection Use the Selection options to set the exact size of the image output. Contents To select the area to scan, use the Crop button or Auto Index Crop button or enter the desired dimensions in the text box.

  • Page 41: The Tone Sheet

    The Tone sheet is displayed only when Color or Grayscale has been Index selected for Color Mode on the Advanced Mode Main sheet and when Canon ColorGear Color Matching is not selected for Color Setting in the Preferences settings. • Changing the Color Mode selection or clicking the Clear button restores the default settings on the Tone sheet.
  • Page 42 chapter 4 What is on the Screen? Top Page Glossary Contrast/Brightness button Opens the Contrast/Brightness sheet and allows you to adjust the Contents brightness and contrast of the entire image. Index Gamma button Opens the Gamma sheet and allows you to shift mid-tones so lighter colors are lightened and darker colors are darkened.

  • Page 43: Advanced Mode Main Window

    chapter 4 What is on the Screen? Top Page Glossary Common Buttons Contents The Tone sheet settings are commonly set with the Load, Save, Reset and All Reset buttons described below. Index Load Button When Color Mode is set for Color, a user-saved file (*.adc) is opened and used for color adjustment.

  • Page 44: Contrast/Brightness Sheet

    chapter 4 What is on the Screen? Top Page Glossary Contrast/Brightness Sheet Contents Index When the Contrast/Brightness button is clicked, the Contrast/Brightness sheet is displayed. The shape of the tone curve changes to reflect the current Contrast/ Brightness setting for the current Channel, and the image in the Preview Area changes to reflect the adjustment.

  • Page 45: Gamma Sheet

    chapter 4 What is on the Screen? Top Page Glossary Gamma Sheet Contents Index When the Gamma button is clicked, the Gamma sheet is displayed. Gamma refers to a process where mid-tones are shifted so that the lighter colors are lightened and darker colors are darkened. For example, let us say you scanned a photograph of a subject in a boat in a tree-lined lake and the shadows of the trees are dark enough and the white of the boat is light enough, but the blue in the sky, the blue of the water, and...
  • Page 46 chapter 4 What is on the Screen? Top Page Glossary Gamma (Scanner Gamma) Drag the Gamma slider to the left or right to set the scanner gamma Contents value or you can type the value directly into the boxes. Entering a value into either boxes of the scanner gamma or the monitor gamma will Index display a respective value in the other box.

  • Page 47: Histogram Sheet

    chapter 4 What is on the Screen? Top Page Glossary Histogram Sheet Contents Index When the Histogram button is clicked, the Histogram sheet is displayed. Use the histogram to enhance an image when the image is either too light or too dark, like an overexposed or underexposed photograph. Increasing the darker tones with the histogram improves the contrast of the image.
  • Page 48 chapter 4 What is on the Screen? Top Page Glossary Eyedroppers (Black-point, Mid-point, White-point) Click one of the three eyedroppers then click the portion of the image in Contents the Preview Area that you want to sample, or enter values in the text boxes, or drag one of the three triangles at the bottom of the graph to Index adjust the value.

  • Page 49: Special Tone Curves Sheet

    chapter 4 What is on the Screen? Top Page Glossary Special Tone Curves Sheet Contents Index When the Special Tone Curves button is clicked, the Special Tone Curves sheet is displayed. Channel Click the down-arrow and select one of the primary colors (RGB) for adjustment or leave the setting at Master to adjust all the colors.

  • Page 50: Editing A Special Tone Curve Directly

    chapter 4 What is on the Screen? Top Page Glossary Editing a Special Tone Curve Directly Contents In the Special Tone Curves graph you can edit the curve directly. Index Click on the curve and drag each curve anchor point until the desired effect is achieved.
  • Page 51 chapter 4 What is on the Screen? Top Page Glossary Here are some hints for editing curves: Contents • Curve handles are drawn on a white background Note Index as a red dot to signify that they are editable. When the cursor is over the handle, it changes to a crosshair.

  • Page 52: The Halftone Sheet

    chapter 4 What is on the Screen? Top Page Glossary The Halftone Sheet Contents Index The Halftone sheet is displayed only when Black and White or Text Enhanced(OCR) has been selected for the Color Mode on the Advanced Mode Main window. •...

  • Page 53: The Scanner Sheet

    chapter 4 What is on the Screen? Top Page Glossary The Scanner Sheet Contents Index When you click on the Scanner tab (D646U) the Scanner sheet opens. Paper Size Specifies from the drop-down list the paper size of the image to be scanned.

  • Page 54: Descreen

    chapter 4 What is on the Screen? Top Page Glossary Descreen Click this check box if you want ScanGear CS-U to conduct moiré Contents reduction to improve the overall image quality. Moiré are dot patterns that interfere with processing images for professional use and are usually Index caused by poor dithering resulting from scanning images from newspapers, books, magazines, etc.

  • Page 55: Chapter 5 Scanning An Original

    chapter Top Page Glossary Contents Index Scanning an Original Preparing for the Scanning Job Quick Start Previewing and Scanning an Original...

  • Page 56: Preparing For The Scanning Job

    chapter 5 Scanning an Original Top Page Glossary Preparing for the Scanning Job Contents These are some points you should check before you start scanning: Index • If you have not yet installed the parent software application you intend to use with the scanner and ScanGear CS-U, install the application.

  • Page 57: Quick Start

    chapter 5 Scanning an Original Top Page Glossary Quick Start Contents Follow the procedure below if you want to get started scanning right Index away. The referenced page numbers provide more details about the steps below. If you need more information about a procedure, go to that page number.
  • Page 58 chapter 5 Scanning an Original Top Page Glossary Preview the original. ( p.62, Contents Index Adjust image as required. ( p.63, Set the scanning area. ( p.63, Scan the document. ( p.63, The image is processed. (For details, the application manual)

  • Page 59: Previewing And Scanning An Original

    Start the software application you are going to use. (for example PhotoStudio 2000) If other TWAIN driver is installed on your computer, you must choose this scanner. Click the [File] menu and select [Select Source], and select [CanoScan D646U] on the dialog box.
  • Page 60 chapter 5 Scanning an Original Top Page Glossary Start ScanGear CS-U as a TWAIN driver. Contents The mothods for starting TWAIN drivers vary between application programs. For example of PhotoStudio 2000, click the [File] menu and Index select [Acquire]. See the respective manuals for other programs. The ScanGear CS-U main window opens.
  • Page 61 chapter 5 Scanning an Original Top Page Glossary Click the down-arrow for Image Type and select a setting from the drop-down list. ( p.32) Contents Index Your selection automatically sets the mode for the scanning job. Note Review the settings you see below the Image Type selection (Color Mode, Resolution, Width, Height, Size, Paper Size).
  • Page 62 chapter 5 Scanning an Original Top Page Glossary Click the Preview button to pre-scan the image and display it in the Preview Area. Contents Index When the amount of light of the lamp inside the scanner is insufficient, the message “Now adjusting lamp…” may be displayed.
  • Page 63 chapter 5 Scanning an Original Top Page Glossary Click a button in the Toolbar ( p.28) to manipulate the image. Contents You can click the Auto Tone button ( p.30) to have Index ScanGear CS-U automatically adjust the color tones of the scanned image.

  • Page 64: Scanning In The Advanced Mode

    chapter 5 Scanning an Original Top Page Glossary Scanning in the Advanced Mode Contents This is a brief overview of the general procedure for previewing and Index scanning an original in the Advanced Mode. Place the original on the scanner. For details about positioning the original on the scanner, see your scanner user's manual.
  • Page 65 chapter 5 Scanning an Original Top Page Glossary The ScanGear CS-U main window opens. Contents Index If the Simple Mode main window appears, click the Advanced Mode button. If you see an image in the Preview Area this means one of the preview settings has been switched on with the Preferences sheet.
  • Page 66 chapter 5 Scanning an Original Top Page Glossary In the Scanner sheet, specify a variety of settings for operation of the scanner. ( p.53) Contents Click the Preview button to pre-scan the image and display it in the Index Preview Area. When the amount of light of the lamp inside the scanner is insufficient, the message “Now adjusting lamp…”...
  • Page 67 chapter 5 Scanning an Original Top Page Glossary Adjust the image quality with the tools and options provided on the Tone ( p.41) or Halftone ( p.52) sheet. Contents Specify the scanning area. Index Point to one corner of the area of the image that you want to scan. Click the left mouse button and, while holding the mouse button down, drag the mouse pointer to the opposite corner of the area you want to scan.

  • Page 68: Chapter 6 Settings In The Windows Control Panel

    chapter Top Page Glossary Contents Index Settings in the Windows Control Panel Opening Scanners and Cameras Properties General Settings Preferences Settings Color Management Settings...

  • Page 69: Opening Scanners And Cameras Properties

    chapter 6 Preferences Settings Top Page Glossary Opening Scanners and Contents Cameras Properties Index You can specify some settings for ScanGear CS-U with using Scanners and Cameras properties in Windows Control Panel. Scanners and Cameras Properties dialog can be opened with the following procedures.

  • Page 70: Preferences Settings

    chapter 6 Preferences Settings Top Page Glossary In the Properties window, click the appropriate tab (General, Preferences or Color Management) to open the respective sheet. Contents Index Confirm that the settings are apropriate. Otherwise make changes as necessary. After the changes are made, click the Apply button to validate the changes.

  • Page 71: General Settings

    chapter 6 Preferences Settings Top Page Glossary General Settings Contents The General sheet provides details the name of the connected scanner, Index its current status, and a button for diagnostic testing. Executing a Diagnostic Test Follow the procedure below to execute the scanner diagnostic test. Click the Test Scanner button.

  • Page 72: Preferences Settings

    Color Mode to Black and White. The default setting is Off. Color Settings When the Color Mode is set to Color, you can select the color adjusting method for scanning from Standard, Canon ColorGear Color matching or None. The default setting is Standard. •Recommended This setting adjusts the colors of the scanned original to match colors displayed on the monitor.
  • Page 73 6 Preferences Settings Top Page Glossary When you specify “Canon ColorGear Color Matching” Contents setting, the Auto Tone button will be grayed out and the Tone sheet in the Advanced Mode will not be displayed. Note Index Preview at opening of ScanGear CS-U...

  • Page 74: Color Management Settings

    The Color Management sheet allows you to add or remove basic profiles Index for Canon ColorGear Color Matching. • Click the Canon ColorGear Color Matching check box on in the Preferences sheet. • The sRGB Color Space Profile is added automatically when ScanGear CS-U is installed.

  • Page 75: Chapter 7 Troubleshooting

    chapter Top Page Glossary Contents Index Troubleshooting Pre-Scan Checklist How to Avoid Problems Troubleshooting Checklist...

  • Page 76: Pre-Scan Checklist

    chapter 7 Troubleshooting Top Page Glossary Pre-Scan Checklist Contents Perform the checks on this short list before you begin troubleshooting Index specific problems. • Make sure that the ScanGear CS-U software was installed successfully. • Confirm that the cables between your computer and scanner are connected securely.

  • Page 77: How To Avoid Problems

    chapter 7 Troubleshooting Top Page Glossary How to Avoid Problems Contents Here is some general advice on avoiding problems in your scanning jobs: Index • Start with the best possible original image to scan. • Select only the part of the image you want to scan. Preview the image and select it with the Crop and Auto Crop buttons.

  • Page 78: Troubleshooting

    chapter 7 Troubleshooting Top Page Glossary • If you are using OCR software, scan in Text Enhanced at 300 dpi or higher. Contents • Take advantage of the preview feature and preview as much as you Index want before scanning.

  • Page 79: Troubleshooting Checklist

    chapter 7 Troubleshooting Top Page Glossary Troubleshooting Checklist Contents The scanner diagnostics test fails. Index Problem: The Scanner Diagnostics test, started with the Test Scanner button on the Scanner sheet, returns a Test Failed message. Cause: The scanning unit may not be in its home position. Solution: Close the ScanGear CS-U window if it is open.
  • Page 80 The toner of the printer is going short. Solution: Confirm the toner of the printer. Cause2: Canon ColorGear Color Matching may have not been selected when it was necessary. Solution: Check that Canon ColorGear Color Matching is selected on the Preferences sheet.
  • Page 81 chapter 7 Troubleshooting Top Page Glossary ScanGear CS-U does not launch. Contents Problem: ScanGear CS-U does not launch, the screen freezes, or another software application launches. Index Cause1: The scanner may not be connected correctly. Solution: Make sure the scanner is properly connected to your computer before you turn on the computer and start Windows.
  • Page 82 chapter 7 Troubleshooting Top Page Glossary Scanning is too slow. Contents Problem: The scanner is taking an unusually long time to print or scan. Index Cause1: The selected output resolution of the image may be too high for the resolution of your printer, or your computer may be low on memory.
  • Page 83 chapter 7 Troubleshooting Top Page Glossary Windows 2000: Contents (1) Right-click the [My Computer] icon on the Windows desktop. Index (2) Click the [Hardware] tab and click [Device Manager] button. (3) Click on the [+] on the left of [IDE ATA/ATAPI Controllers].
  • Page 84 chapter 7 Troubleshooting Top Page Glossary Parts of images are missing or not aligned. Contents Problem: Some characters are missing from the image in the Preview Index Area, or the image is not aligned in the Preview Area. Cause: The page has been placed on the scanner improperly. Solution: Check the scanner and place the original correctly to adjust the image.

  • Page 85: Glossary

    Top Page Glossary Contents Index Glossary...

  • Page 86: Acquired Images

    Glossary Top Page Glossary Acquired Images Images sent from your scanner software to the host graphics application. Contents Auto Crop Index After you select an area of the screen by clicking the Crop button and dragging a rectangle around the object or text you want to crop, click the Auto Crop button to size the rectangle exactly to the size of the object or block of text enclosed in the rectangle.

  • Page 87: Black-Point

    (scanner) with the color profile of the output device (monitor), to yield the most accurate color image. Canon ImageTrust Canon's process of converting grayscale image (8 bits per pixel) to a black and white image (1 bit per pixel) to yield a more effective scan for optical character recognition (OCR) applications.

  • Page 88: Clear Button

    Color matching lets your system display colors so that the color on your monitor and printer matches the colors scanned. See also Canon ColorGear Color Matching. Color Mode The type of scan used to scan an image, differentiated by the number of bits per pixel.

  • Page 89: Crop

    Glossary Top Page Glossary Crop The action of selecting part of an image. The Crop button on the Contents ScanGear CS-U main window lets you select part of a preview image and re-preview or scan only that selected part. Index Curve chart The graph displayed in the Tone tab settings for the Auto Tone, Contrast/ Brightness, Gamma, Histogram, and Special Tone Curves features.

  • Page 90: End Points

    Glossary Top Page Glossary End points The points at each end of a preset or custom tone curve. The curve end Contents points cannot be deleted. If they are dragged to or past an edge, they remain on the edge. Add points to the curve by clicking anywhere in the Index curve box.
  • Page 91 Glossary Top Page Glossary Grayscale Grayscale refers to a single-channel image made up of 256 shades of Contents gray, ranging from white to black, that represent all tones in an image. Index Halftoning A method of simulating intermediate tones in black-and-white images by varying the patterns dots and lines.
  • Page 92 Glossary Top Page Glossary Mid-point The mid-tone portion of the image scanned as Color or Grayscale. When Contents you click on the image with the Mid-point eyedropper, all tones between the black-point and white-point are adjusted in relation to the mid-point Index setting.
  • Page 93 Glossary Top Page Glossary Output size The size of the acquired image, calculated by multiplying the width and Contents height by the scale percentage. Index Overexposed An image that was exposed to too much light while it was being photographed. Paper Size An option on the Scanner sheet that determines the initial scanning area.
  • Page 94 Glossary Top Page Glossary Preview image cache When the preview image cache feature is switched on, the image in the Contents Preview Area from the previous session with ScanGear CS-U is saved and displayed the next time ScanGear CS-U is launched from the parent Index software application.
  • Page 95 Glossary Top Page Glossary Scale The Scale setting lets you specify an output size for the selected image as Contents a percent of the original width and height. Index Scan button Clicking the Scan button scans the original and sends it to the host software application.
  • Page 96 When Text Enhanced is selected for the Color Mode, images are scanned as Grayscale (8 bits per pixel) and converted to Black and White (1 bit per pixel) using Canon ImageTrust processing software. Threshold In a black-and-white image, the point at which a gray pixel is determined to become either black or white.
  • Page 97 Glossary Top Page Glossary TWAIN TWAIN refers to an industry standard for transferring information from Contents devices (such as a scanner or digital camera) to your computer. One interpretation of the acronym is "Technology Without An Interesting Index Name." Underexposed A dark photographic image that was exposed to too little light when it was photographed.
  • Page 98 Glossary Top Page Glossary X and Y Axes The X and Y axes on the Tone sheet curve chart represent, respectively, Contents the input image color and output image color. Index Zooming Enlarging an image or a selected part of the image in the preview window or in a graphics application.

  • Page 99: Index

    Top Page Glossary Contents Index Index...
  • Page 100 Curve file ... Black-point ... 48, Custom curves ... Brightness ... 44, Default ... Calibration ... Descreen ... Canon ColorGear Color Digitizing ... Matching ... 74, dpi ... Canon ImageTrust ... CanoScan Setup Utility CD-ROM ... 16, Channel ... 44, 45, 47, 49, Edit Image Type Button ...
  • Page 101 Index Top Page Glossary Contents Full Platen ... Low contrast ... Index Gamma ... Magazine ... Gamma button ... Main Sheet ... Gamma Curve ... Mid-point ... 48, Gamma Sheet ... Mid-tone ... Grayscale ... Mirror Button ... Mode Switching Button ... moiré...
  • Page 102 Index Top Page Glossary Contents Paper Size ... 36, 53, Sampling ... Pixel ... Scale ... 40, Index Platen ... Scan ... 63, Pre-scan ... 62, Scan Button ... 27, 31, Preferences Settings ... Scan Resolution ... Automatically quit ScanGear ScanGear CS-U main window ...
  • Page 103 Index Top Page Glossary Contents Test Scanner... X and Y Axes ... Test Scanner button ... Index Text Enhanced(OCR) ... Threshold ... 52, Title Bar ... Zoom Tool Button ... Tone Curve ... Zooming ... Tone Sheet ... 41, Tool Bar ... 27, 28, Troubleshooting ...

  • Page 104: Customer Support Help Desk

    6505 Blue Lagoon Drive, Suite 325 Fax 08-744 64 65 Miami, Florida 33126, U.S.A. http://www.canon.se CANON MEXICANA, S. de R.L. de C.V. CANON OY AB Anillo Periferico Sur No. 4124, Torre Zafiro (II) Colonia Kornetintie, 3, 00380 Helsinki, Finland Ex-Rancho de Anzaldo, Piso 5 y 6, Mexico D.F.

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