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Click the down arrow icon to access the browser's download page Install the download by clicking on the file name. Chrome A grey bar will appear at the bottom of your browser window which will contain your download. To install your download click on the name of the downloaded file.
I have read and understand the information above, and wish to download the designated software. View More Details. Find a dealer. CanoScan DU. This product is supported exclusively through our web site. Scroll down to see your support options.
You can also click one of these links to search our extensive Knowledge Base or visit the Canon Community Forum. Main Unit Spec. Scanner Type. Scanning Element. Light Source. Scanning Mode. Document Size. Dimensions W x D x H. OS Compatibility.
Power Source. Power Consumption. Operating Temperature:. Drag the slidebar left or right to adjust the brightness setting. Use this feature to adjust the color balance when you see an over-abundance of a color in a scanned image. Adjust this value if what you see on the screen is very different from your printout. 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. 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 The default setting is [Standard].
Standard Use this option if scanned images are to be viewed primarily on the computer display with photo album software. 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. 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 user may freely assign a name to the settings file. It is convenient to save frequently used settings in a file. 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 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 DU models is dpi for the primary scan horizontal dimension of the document , and dpi for the secondary scan vertical dimension. Page Appendices Appendices Troubleshooting p. 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.
Page 59 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 60 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 61 Problem: Smudges are appearing on glossy color photo scans Solution: Photos are adhering to the document glass are causing the light to refract, creating the striped patterns. Shift the photo to a different position on the document glass or clean the document glass before rescanning.
Customer Support Help Desk. Page 64 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.
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