Canon CanoScan D646U Driver Download

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Supported Models

CanoScan D646U Driver



Supported Operating Systems

Windows 2003, Windows XP, Windows 2000, Windows NT4, Windows NT3.51, Windows ME, Windows 98SE, Windows 98, Windows 95, Windows 3.1

File Name

Versions (2001-09-25) via .inf

Uploaded By

DriverGuide (DG Staff Member) on 11-Sep-2003

Ratings & Reviews

See all Canon CanoScan D646U ratings and reviews

Driver Contents File List

The following files are found inside the driver download file.

Name Size Date
D064U.INF 6.1 KB 25 Sep 2001
D064U.CAT 16.4 KB 13 Jun 2001
D064UNT.CAT 16.1 KB 27 Sep 2001
D064USG/CNZ005.ICC 1.0 KB 27 May 1999
D064USG/LTKRN10N.DLL 298.0 KB 18 Feb 2000
D064USG/TWAIN.DLL 87.4 KB 11 Feb 1997
D064USG/TWUNK_32.EXE 69.6 KB 17 Oct 2000
D064USG/UCS32P.DLL 323.6 KB 12 Oct 2000
D064USG/README.TXT 3.5 KB 27 Sep 2001
D064USG/IMGENH.DLL 176.2 KB 31 Mar 2001
D064USG/IOP.DLL 2.4 MB 31 Mar 2001
D064USG/D064UFW.INI 1.9 KB 6 Feb 2001
D064USG/CANOIT32.EXE 45.1 KB 18 Feb 2000
D064USG/D064UCPL.DLL 28.7 KB 31 Mar 2001
D064USG/ITLIB32.DLL 119.8 KB 18 Feb 2000
D064USG/TWAIN_32.DLL 77.3 KB 17 Oct 2000
D064USG/TWUNK_16.EXE 48.6 KB 17 Oct 2000
D064USG/CNS60N.ICC 55.5 KB 21 Jan 2001
D064USG/D064UA.DAT 393.3 KB 19 Jan 2001
D064USG/TPM.DLL 172.1 KB 31 Mar 2001
D064USG/SCANINTF.DLL 1.4 MB 31 Mar 2001
D064USG/CSUI.DLL 811.0 KB 31 Mar 2001
D064USG/D064UFW.DLL 151.6 KB 25 Sep 2001
D064USG/SYSERROR.EXE 49.2 KB 31 Mar 2001
D064USG/CSUI.CNT 1.7 KB 22 Jan 2001
D064USG/CISDS.DS 94.3 KB 30 Mar 2001
D064USG/MSVCRT.DLL 266.3 KB 14 Apr 2000
D064USG/D064UUI.DLL 159.8 KB 31 Mar 2001
D064USG/D064UUD.DLL 94.2 KB 30 Mar 2001
D064USG/D064UFW.PLG 98.3 KB 15 Jan 2001

How to Update CanoScan D646U Device Drivers Quickly & Easily

Step 1 - Download Your Driver

To get the CanoScan D646U driver, click the green download button above. After you complete your download, move on to Step 2.

If the driver listed is not the right version or operating system, search our driver archive for the correct version. Enter Canon CanoScan D646U into the search box above and then submit. In the results, choose the best match for your PC and operating system.

Tech Tip: If you are having trouble deciding which is the right driver, try the Canon Driver Update Utility. It is a software utility which automatically finds and downloads the right driver.

To find the newest driver, you may need to visit the Canon website. Most major device manufacturers update their drivers regularly.

Step 2 - Install Your Driver

Once you have downloaded your new driver, you'll need to install it. In Windows, use a built-in utility called Device Manager, which allows you to see all of the devices recognized by your system, and the drivers associated with them.

How to Open Device Manager

  • In Windows 11, Windows 10 & Windows 8.1, right-click the Start menu and select Device Manager

  • In Windows 8, swipe up from the bottom, or right-click anywhere on the desktop and choose "All Apps" -> swipe or scroll right and choose "Control Panel" (under Windows System section) -> Hardware and Sound -> Device Manager

  • In Windows 7, click Start -> Control Panel -> Hardware and Sound -> Device Manager

  • In Windows Vista, click Start -> Control Panel -> System and Maintenance -> Device Manager

  • In Windows XP, click Start -> Control Panel -> Performance and Maintenance -> System -> Hardware tab -> Device Manager button

How to Install a driver from Device Manager

  1. Locate the device and model that is having the issue and double-click on it to open the Properties dialog box.

  2. Select the Driver tab.

  3. Click the Update Driver button and follow the instructions.

In most cases, you will need to reboot your computer in order for the driver update to take effect.

Tech Tip: Driver downloads and updates come in a variety of file formats with different file extensions. For example, you may have downloaded an EXE, INF, ZIP, or SYS file. Each file type has a slighty different installation procedure to follow.

For more help, visit our Driver Support Page for step-by-step videos on how to install drivers for every file type.

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