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Before you begin
Welcome!
Thank you for purchasing a Canon Document Scanner DR-4080U.
These instructions show you how to operate and maintain the Canon Document Scanner DR-4080U. Before
you use the scanner, read these instructions. Keep these instructions and all the other documents you re-
ceived with the scanner in a safe place where you can find them for future reference.
Outstanding features
Here is a brief summary of the outstanding features of your new scanner.
Enhanced Scan
Scanning quality is enhanced by providing an optical resolution of 400 dpi and gray scale scanning capa-
bility.
High-speed document feeding
The Automatic Document Feeder (ADF) delivers high-speed scanning on standard paper sizes up to A3
(297
420 mm) up to 45 sheets per minute (scanning A4 size, single-sided documents). Scanning docu-
ments place on the flatbed is also extremely fast.
Flatbed scanning
The flatbed allows you to scan originals which are too thin or too fragile to feed from the ADF.
Variety of scanning modes
The following modes can be selected for scanning jobs.
• Single-sided or double-sided documents
• Automatic feed of stacked documents or single manual feed
• Text (black and white) or photo (gray scale) mode scanning
Variety of image processing methods
The following processing methods can be applied to images as they are scanned:
• Dither
• Image Emphasis
• Reverse Image
• Mirror Image
• Noise Reduction
• Automatic Separation
• Remove Shadow
Double-feed detection
Immediate detection of double-feeds pauses the scanning job and allows you to correct the problem with
having to remove jammed sheets from the scanner.
Skewed feed detection
This function detects skewed document feed and stops feeding to allow the problem to be corrected.
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