Canon CanoScan D646U User Manual
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Canon CanoScan D646U User Manual

Canon CanoScan D646U User Manual

Canoscan d646u plug-in module cs-u 4.0 for mac
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M a c i n t o s h
Canon Plug-in Module CS-U 4.0
for CanoScan D646U Color Image Scanner
User' s Guide

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Summary of Contents for Canon CanoScan D646U

  • Page 1 M a c i n t o s h Canon Plug-in Module CS-U 4.0 for CanoScan D646U Color Image Scanner User' s Guide...

  • Page 2: How To Make Best Use Of The Manuals

    Electronic Manual CanoScan Toolbox User's Guide Detailed information on how to use CanoScan Toolbox. After you have read this book and mastered the use of Canon Plug-in Module CS-U and CanoScan Toolbox... When using the Electronic Manuals Manual for Each accompanying...

  • Page 3: How To Use This Guide

    How to Use this Guide This guide explains the operating procedures for Canon Plug-in Module CS-U (hereafter referred to as Plug-in Module CS-U), the Macintosh driver (plug-in software) used with Canon image scanners. A plug-in is not an independent software program; it must be used within a plug-in compliant application, such as CanoScan Toolbox or ArcSoft PhotoStudio 2000, to expand the capabilities of that program.

  • Page 4: Table Of Contents

    Table of Contents How to Make Best Use of the Manuals ..............How to Use this Guide ................... Table of Contents ....................Installing Plug-in Module CS-U ................Control Panel Features ................... Scanning Procedures ....................Plug-in Module CS-U Special Features ..............Quick Start Instructions ................
  • Page 5 Gamma Value Settings ..................Adjusting the Threshold Value ................Auto Tone Correction ................... Unsharp Mask ...................... Descreen ......................Saving/Recalling Settings ..................Scanning Techniques .................... Appendices ....................Troubleshooting ....................Error Messages ....................Glossary ....................... Index ........................Canon Customer Support Help Desk ..............

  • Page 6: Installing Plug-In Module Cs-U

    Ver. 2.0 or higher is required to use these profiles with the automatic color matching system 49). • The following display profile files are available: CANON gamma 1.5 monitor, CANON gamma 1.8 monitor and CANON gamma 2.1 monitor. If you wish to adjust the color balance of the display, double-click [ColorSync™] in your Macintosh’s Control Panels folder and select one of...

  • Page 7: Control Panel Features

    Control Panel Features When you need more information about a control panel button or menu, refer to the illustration below and go to the referenced page number for more details. • The illustration may differ slightly from the version of Plug-in Module CS-U provided in your package.

  • Page 8: Scanning Procedures

    Scanning Procedures Follow these procedures to use Plug-in Module CS-U. Is Plug-in Module CS-U installed? Refer to the scanner's Quick Start Guide to install it. Is the scanner attached? Refer to the scanner's Quick Start Guide to attach it. S T E P Prepare for Scanning p.

  • Page 9: Plug-In Module Cs-U Special Features

    Plug-in Module CS-U Special Features • 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.

  • Page 10: Quick Start Instructions

    Quick Start Instructions Folow the procedures below to start scanning immediately. If you require more information at any stage, read the pages referenced at each step. Install Plug-in Module CS-U This step is not required if you have already installed Plug-in Module CS-U following the instructions in the Quick Start Guide.
  • Page 11 Set the Scan Mode, Output Device, Resolution and Magnification pp. 18-22 • Scanning mode determines how the image is scanned 21). • Output device setting optimizes the images for particular uses 18). • Resolution determines the amount of detail in the scanned image 19).
  • Page 12 Scan the Image p. 33 Click on the [Scan] button. • Plug-in Module CS-U will scan the image. • When the scan is complete, the Plug-in Module CS-U control panel will close and the scanned image will appear in the ArcSoft PhotoStudio 2000 or other plug-in compatible application window as an “Untitled”...

  • Page 13: Step

    S T E P Scanning Preparations Step 1 presents the essential preparations for scanning. The following procedures are explained on the indicated pages. Displaying the Plug-in Module CS-U Control Panel p. 14 Positioning Originals p. 16 Previewing p. 17 Selecting the Output Device p.

  • Page 14: Displaying The Plug-In Module Cs-U Control Panel

    S T E P Displaying the Plug-in Module CS-U Control Panel The Plug-in Module CS-U control panel is used to perform scans. Plug-in Module CS-U can be opened from CanoScan Toolbox or ArcSoft PhotoStudio 2000 and other plug-in compatible application programs. To quit Plug-in Module CS-U, click on the close box at the top left of the control panel.

  • Page 15: Operating Procedures

    S T E P Operating Procedures The following provides an example of scanning from within ArcSoft PhotoStudio 2000. Verify that the scanner is attached to your computer and that the power is on. Read the Getting Started guide for instructions on how to connect the scanner. Start ArcSoft PhotoStudio 2000.

  • Page 16: Positioning Originals

    S T E P Positioning Originals Place the original you intend to scan on the scanner's document glass (platen). Procedures Place the original on the scanner's document glass. Open the cover and set the original face down on the scanner’s document glass with the top edge at the front of the scanner.

  • Page 17: Previewing

    S T E P Previewing The preview scan is a trial scan performed before the final scan that encompasses the entire scanable area of the document glass. The preview image is shown in the preview window. Use this image to specify a scan area and adjust the scan settings for the image.

  • Page 18: Selecting The Output Device

    S T E P Selecting the Output Device Use the following procedures to select the output device (printer, etc.) for the scanned image. Select the device that corresponds best to your output device and use of the image. Operating Procedures Click the arrow on the [Output Device] section of the control panel and select a device from the pop-up menu.

  • Page 19: Setting The Resolution And Magnification

    S T E P Setting the Resolution and Magnification The magnification of an image can be changed before scanning to accommodate reproductions that are larger or smaller than the original. The settings can be changed in increments of 1%. 12"/30cm Scanning at 200% 6"/15cm 8"/20cm...
  • Page 20 S T E P To Set the Magnification Factor Set the desired magnification factor on the control panel. Slider Drag the slider bar in either direction or use the arrow keys to change the resolution. Click the up or down arrow to increase or decrease the setting.

  • Page 21: Setting The Scan Mode

    S T E P Setting the Scan Mode When an image is scanned, it is read as a collection of “dots.” The scan mode that is selected determines how each of these dots is represented in the output. The following four scan modes are available. Black and White Expresses images in two colors only: black or white.
  • Page 22 S T E P Operating Procedures Click the arrow beside Scan Mode. Selecting the box opens the pop-up menu. Select a scan mode from the pop-up menu.

  • Page 23: Verifying The Image Before Scanning

    S T E P Verifying the Image before Scanning 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. To Verify the Image Set the magnification and scan mode to the appropriate settings.

  • Page 24: Rotating The Image

    S T E P Rotating the Image You can rotate the image in the preview window clockwise to the right or counterclockwise to the left in increments of 90 or 180 degrees. To rotate the image, click the appropriate button. Caution •...

  • Page 25: Setting Preferences

    S T E P Setting Preferences The Preference settings determine how Plug-in Module CS- U operates for the following options: output device (printer, files), scan area setting method, size display units, preview window size. You can change these options at any time or restore the factory default settings.

  • Page 26: Unit

    S T E P Unit Specifies the units that define the size of the scanned image. Unit Settings Dialog The units displayed in this section of the control panel will change. Preview Window You can size the preview window and set its resolution. Enter a large value for a large preview window size.

  • Page 27: Reset Default Settings

    S T E P Calibration Adjusts the white balance to the correct value so that all the colors are scanned correctly. Calibration takes approximately 1 minute. If the color balance of a scanned image is off-balance, select this option to calibrate the scanner input. Reset Default Settings Returns the preference settings and all other settings to the factory default settings.

  • Page 28: Operating Procedures

    S T E P Operating Procedures Open the [Preferences] menu in the control panel. Select the desired option from the pull-down menu. • Selecting any one of the Output Device, Aspect Ratio, Unit or Preview Window options displays the respective dialog. Choose the desired value in the dialog and select [OK] to change the setting.

  • Page 29: Step

    S T E P Scanning Step 2 presents the procedures for conducting the final scan, saving the scanned image in a file and editing image files. Follow the procedures below to perform the final scan. Setting the Scan Area p. 30 Zooming p.

  • Page 30: Setting The Scan Area

    S T E P Setting the Scan Area Using the image in the preview window, you can define the actual area to be scanned. Operating Procedures Position the pointer in the preview window. The [+] symbol marks the current position of the pointer. Click and drag the mouse in the direction you want to define on the image as a frame.

  • Page 31: Zooming

    S T E P Zooming You can specify a selected area of the image for enlargement with the zoom features. You can use the zoom function to select an area with high precision, or to select small areas for scanning. Procedures to Zoom In Select the area you want to enlarge with the zoom function.
  • Page 32 S T E P Click on the Zoom In button. The selected area will be displayed in expanded form. If you want to enlarge the image again, reduce the size of the area selected with the frame and click the Zoom In button again. Click the Zoom Out button to restore the view prior to zooming.

  • Page 33: Scanning

    S T E P Scanning Once you have set the magnification and scan mode, you may proceed with the scan. Once the scan is complete, Plug-in Module CS-U automatically closes and returns to the application software, such as CanoScan Toolbox or ArcSoft PhotoStudio 2000.

  • Page 34: Saving Scanned Images

    S T E P Saving Scanned Images Follow this procedure to save a scanned image with the parent software application. The example below shows how to save a scanned image with ArcSoft PhotoStudio 2000. See the ArcSoft PhotoStudio 2000 User’s Guide. Operating Procedures After an image is scanned, the image is displayed as “Untitled.”...

  • Page 35: Adjusting Scanned Images

    S T E P Adjusting Scanned Images Scanned images may be corrected for brightness and color tone or edited in a variety of ways. The potential adjustments vary with the scan mode utilized in the preview. Adjustments to the scanned image may be made after the image is previewed. Grayscale, Color: Tone Adjustment p.

  • Page 36: Tone Adjustment

    S T E P Tone Adjustment Use Tone Adjustment to enhance the brightness or color of the image in the preview area. Open the [Image] menu and select [Tone Adjustment], or click the [Tone Adjustment] button, to open the Tone Adjustment dialog so you can enhance the preview image. You can also click the [Auto Tone Adjustment] button so the histogram highlights and shadows are adjusted for you automatically to the optimum settings.

  • Page 37: Histogram Settings

    S T E P Histogram Settings The data comprising an image contains a variety of brightness settings ranging from shadows to highlights. These settings are represented in Plug-in Module CS-U by values ranging between 0 and 255. The difference in these values determines the image’s contrast.
  • Page 38 S T E P 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.
  • Page 39 S T E P The histogram settings can be adjusted for all channels (Master) or for individual channels (R, G, B). The selectors are displayed to the left of the histogram graph (Master, R, G, B). The Master selection is unavailable if Grayscale has been selected as the scan mode.

  • Page 40: Tone Curve Settings

    S T E P Tone Curve Settings You can edit the tone curve directly by changing the shape of the line on the graph. When you change the setting by manipulating the curve, you can perform fine adjustments in the brightness of only the shadows, only the highlights, or both the shadows and highlights.
  • Page 41 S T E P To Edit the Tone Curve In the Tone Adjustment dialog box, click the tone curve tab. Change the tone curve in any direction to adjust its shape. You can adjust the setting for each To create a control point on the line, just click anywhere channel: R (red), G (green), B (blue) in the graph.
  • Page 42 S T E P The Relationship Between the Tone Curve and Image Brightness Tone curve values fall with a range of 0.01 to 10.00. A value of 1 appears as a straight line in the graph, and if the value is any value other than one, the line on the graph will appear curved.

  • Page 43: Brightness And Contrast Settings

    S T E P Brightness and Contrast Settings You can adjust the image with two slide bars, one for contrast and one for brightness. Use this method to adjust an image before scanning if it is slightly out of focus or too dark. Hint •...
  • Page 44 S T E P To Adjust the Brightness and Contrast In the Tone Adjustment dialog click the brightness/contrast tab. Adjust the brightness/contrast settings by dragging the slidebars, changing the value with the spinbox buttons, or entering the value directly into the entry box. Drag the slidebar left or right to adjust the brightness setting.

  • Page 45: Adjusting The Color Balance

    S T E P Adjusting the Color Balance You can enhance color matching by adjusting the color balance of one or all of the three primary colors: red, green and blue (RGB). Use this feature to adjust the color balance when you see an over-abundance of a color in a scanned image. Hint •...

  • Page 46: Gamma Value Settings

    S T E P Gamma Value Settings By adjusting the gamma value, you can more closely match brightness of the displayed image to the printed image. Adjust this value if what you see on the screen is very different from your printout. Hint •...
  • Page 47 S T E P To Change the Gamma Value Settings Click the gamma tab in the Tone Adjustment dialog. Click a pre-set value or the custom option. Click the appropriate radio button to select a numerical setting. After you click the [Custom] button, you can drag the slidebar to adjust the setting, or you can enter a value directly into the entry box.

  • Page 48: Adjusting The Threshold Value

    S T E P Adjusting the Threshold Value When the scan mode is set to black and white, the image brightness can be adjusted. The threshold value setting determines whether a halftone will be expressed as a black or a white data point. The possible threshold values range between 0 and 255.

  • Page 49: Auto Tone Correction

    S T E P Auto Tone Correction When the selected scan mode is Color, you have three options for adjusting the color: Recommended, ColorSync or None. The default setting is [Recommended]. Recommended Use this option if scanned images are to be viewed primarily on the computer display with photo album software.

  • Page 50: Unsharp Mask

    S T E P Unsharp Mask The Unsharp Mask function enhances the outlines of an image. When set to On, this function makes the image outlines appear sharper without changing the brightness, contrast or color balance, giving it a natural look. It is particularly useful for scanning images that are slightly out of focus.

  • Page 51: Descreen

    S T E P Descreen Moiré patterns occasionally appear when items printed at high resolutions are scanned. To reduce this phenomenon, scan photographs and other high-resolution prints with the Descreen function enabled. Shut it off to scan lower resolution items, such as newspapers, books and magazine text. The default setting is “off.” Caution •...

  • Page 52: Saving/Recalling Settings

    S T E P Saving/Recalling Settings The scan mode, resolution and preference settings can be saved with a preview image 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 in a file.
  • Page 53 S T E P To Recall a Settings File Open the [Setting File] menu and select [Load]. Select the folder where the file is stored and click the name of the file you want to load. Click the [Open] button. The file you selected opens and the settings stored in the file are enabled for the Tone Adjustment settings.

  • Page 54: Scanning Techniques

    Optical resolution refers to the amount of information a scanner can sample per inch. Different varieties of scanner feature different optical resolutions. The maximum optical resolution of the CanoScan D646U models is 600 dpi for the primary scan (horizontal dimension of the document), and 1200 dpi for the...

  • Page 55: Appendices

    Appendices Troubleshooting p. 56 Error Messages p. 60 Glossary p. 61 Index p. 66 Canon Customer Support Help Desk p. 68...

  • Page 56: Troubleshooting

    Module CS-U. For further details, refer to the Troubleshooting item on the CD- ROM provided with your scanner. If your problem lies outside the solutions provided below, consult the retail outlet from which you purchased the software or the closest Canon Customer Support Help Desk. Hint •...
  • Page 57 Problem: Scan button cannot be selected Solution 1: A scan cannot be performed if the scan area is set too small (less than 64 x 64 pixels). Increase the size of the scan area Solution 2: A scan cannot be performed unless a scan area is specified. Specify a scan area Solution 3: A scan cannot be performed if the required memory is larger than the free memory.
  • Page 58 Problem: No free disk space message displays when you start a scan Solution: Since there is insufficient free space on your hard drive, clear non- essential files to create more space. Problem: Scanning is taking a long time Solution: Resolution is set too high. Lower the resolution to the minimum required settings and rescan.
  • Page 59 Problem: Coloring of the preview image and the printed image is different Solution 1: Insufficient printer toner (ink). Replenish or replace the toner. (printer manual) Solution 2: Color balance or gamma value setting in the printer driver doesn’t match the printer. Manually adjust the settings in the printer driver. (printer manual)

  • Page 60: Error Messages

    PC to Reconnect it and restart Plug- the scanner again. in Module CS-U. • The scanning unit is • Contact your nearest Canon out of order. Customer Support Help Desk. 1) Cannot complete scan • Memory is •...

  • Page 61: Glossary

    Glossary Auto Tone Correction A function that uses brightness/contrast and gamma value settings to automatically analyze and adjust images. Bits/Bit Numbers Each dot of a 1-bit image is assigned either black or white according to the threshold brightness value, resulting in the image being reproduced in just those two colors.
  • Page 62 Color Channel Any one of the red, green or blue elements of a color image. Since color images are assigned 8 bits per pixel for each of the red, green and blue channels, each pixel is assigned 24 bits of data. The master channel is the composite of these three channels.

  • Page 63: Image File

    Gamma Value A function for adjusting the overall brightness of an image. A gamma value is the mathematical expression of how brightness data is converted from a scanner (the input) to a monitor or printer (the output). With 1 as the base value, a gamma value less than 1 makes an image darker, while a higher value makes it brighter.

  • Page 64: Preview Area

    Moiré The patterns or lines created by overlapping dots in an image. This phenomenon is found when photographs or pictures are scanned from books and magazines at low resolutions. The Descreen function helps to eliminate moiré patterns. Optical Resolution An expression of the volume of data per inch (dpi) that can be sampled by a scanner.

  • Page 65: Scan Mode

    Scan Mode Any one of the various methods used to reproduce image data. Scan modes are distinguished by the number of bits used to describe each pixel. Plug-in Module CS-U features the following scan modes. • Color: assigns 8 bits of data for each color channel (RGB) in each pixel. Each pixel is therefore assigned 24 bits.

  • Page 66: Index

    Index Alignment mark Gamma tab Application Gamma value 46, 63 Compatible Grayscale Stand-alone Aspect ratio Half-tone Auto button Highlight mark Auto Tone Adjustment button 7, 36 Highlights Auto Tone Correction Histogram 37, 63 Histogram tab Bits/Bit numbers Black and White Image file Black Eyedropper button Image menu...
  • Page 67 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.

  • Page 68: Canon Customer Support Help Desk

    CANON GmbH Tel: 662-3449999, Fax: 662-3449968 Miami, Florida 33126, U.S.A. Zetschegasse 11, 1232 Wien, Austria http://www.canon.co.th CANON MEXICANA, S. de R.L. de C.V. CANON (SCHWEIZ) A.G. CANON MARKETING (PHILIPPINES) Anillo Periferico Sur No. 4124, Torre Zafiro (II) Industriestrasse 12, CH-8305 Dietlikon Colonia INC.
  • Page 69 Raulie W. Schnee, Argot Associates, Tokyo, Japan Editing: Jun Koike, CDS Inc., Tokyo, Japan Cover Photo: Yoshisuke Kuramoto, CDS Inc., Tokyo, Japan Other Photos: Yoshisuke Kuramoto, CDS Inc., Tokyo, Japan I-OE-055A 012001 CDS ©CANON INC. 2001 Adobe Acrobat PDF created in Japan...

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