The 640U is a scanner manufactured by Acer. Updated drivers may include advanced image processing algorithms that enhance the quality of scanned images. These algorithms can help with color accuracy, sharpness, noise reduction, and other aspects of image quality. By improving the image processing capabilities, updated drivers can produce higher-quality scans and minimize the need for post-processing. This driver - "MiraScan342U.zip" - has been downloaded 19,347 times and is rated 3 out of 5 stars based on 68 reviews. Visitors have successfully installed this driver on PCs running Windows XP. The total disk space used for this update is 9.5 MB.
620u
640U
Windows 2003, Windows XP, Windows 2000, Windows NT4, Windows NT3.51, Windows ME, Windows 98SE, Windows 98, Windows 95, Windows 3.1
Found this driver from Acer Australia-Only place I found later version than 3.41 which did not work well w/W2K-- this works great!!! Unzip and install.
John Hart (DG Member) on 22-Jul-2001
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To get the 640U 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 Acer 640U 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 Acer 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 Acer website. Most major device manufacturers update their drivers regularly.
After downloading your new driver, it's time to install it. For Windows users, the built-in Device Manager is your go-to tool for managing system devices and drivers. Here's how to use it:
Right-click the Start button to open the Quick Access menu.
Select "Device Manager" from the list of options.
In the Device Manager window, locate the device that needs updating.
Right-click on the device name and choose "Update driver" from the context menu.
Follow the on-screen instructions to complete the installation process.
Once the installation is complete, restart your computer to ensure the new driver is properly integrated and functional.
This simple process helps keep your system running smoothly and maintains compatibility with your hardware components.
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.
The following files are found inside the driver download file.
Name | Size | Date |
---|---|---|
_SYS1.CAB | 175.5 KB | 4 Sep 2000 |
SETUP.LID | 49 bytes | 4 Sep 2000 |
SETUP.INS | 82.3 KB | 4 Sep 2000 |
_ISDEL.EXE | 27.6 KB | 27 Oct 1998 |
README.TXT | 3.7 KB | 14 Sep 2000 |
FILMTYPE/FILMTYPE.INI | 22.2 KB | 9 Mar 2000 |
OS.DAT | 450 bytes | 27 Jul 1998 |
SETUP.EXE | 73.7 KB | 12 Jan 1999 |
MSG/ENGLISH/MIRASCAN.MSG | 561 bytes | 6 Mar 2000 |
MSG/TCHINESE/MIRASCAN.MSG | 10.6 KB | 22 Aug 2000 |
DATA1.CAB | 5.5 MB | 4 Sep 2000 |
DATA.TAG | 112 bytes | 4 Sep 2000 |
LAYOUT.BIN | 610 bytes | 4 Sep 2000 |
LANG.DAT | 23.5 KB | 12 Jan 1999 |
BIN/U64V119.BIN | 31.4 KB | 29 Oct 1999 |
BIN/U176V037.BIN | 30.6 KB | 7 Sep 2000 |
BIN/U192V073.BIN | 31.7 KB | 11 Feb 2000 |
BIN/U126V043.BIN | 30.7 KB | 13 Sep 2000 |
BIN/MODEL.INI | 419 bytes | 14 Sep 2000 |
BIN/U222V064.BIN | 30.2 KB | 5 Sep 2000 |
BIN/U34V110.BIN | 28.0 KB | 20 Jan 2000 |
BIN/U190V041.BIN | 32.3 KB | 30 Mar 2000 |
BIN/U96V121.BIN | 31.0 KB | 21 Jan 2000 |
SETUP.INI | 102 bytes | 25 Jul 2000 |
_SETUP.DLL | 34.8 KB | 29 Sep 1998 |
TWAIN/TWAIN.DLL | 87.3 KB | 23 Nov 1995 |
TWAIN/CHECKING.DLL | 147.5 KB | 3 Mar 2000 |
TWAIN/TWUNK_32.EXE | 69.6 KB | 30 Jul 1998 |
TWAIN/TWAIN_32.DLL | 77.3 KB | 21 Oct 1996 |
TWAIN/TWUNK_16.EXE | 48.6 KB | 23 Nov 1995 |
TWAIN/UNUSBDRV.EXE | 151.6 KB | 3 Mar 2000 |
_USER1.CAB | 2.1 KB | 4 Sep 2000 |
SYSTEM/TEMP2.SRC | 22.5 KB | 27 Nov 1997 |
SYSTEM/IMGTABLE.DLL | 274.4 KB | 18 May 2000 |
SYSTEM/SCANCTLS.DLL | 237.6 KB | 21 Aug 2000 |
SYSTEM/IMGPROCS.DLL | 294.9 KB | 18 May 2000 |
SYSTEM/IMGPR16S.DLL | 184.3 KB | 18 May 2000 |
SYSTEM/TEMP3.SRC | 3.1 KB | 18 Jun 1998 |
SYSTEM/TEMP1.SRC | 55.6 KB | 18 Jun 1998 |
_INST32I.EX_ | 296.7 KB | 23 Feb 1999 |