Acer 640U Driver Download
The 640U is a scanner manufactured by Acer. Problems such as scanner won't scan, cannot scan multiple images, bad connection or no access to the Automatic Document Feeder can be fixed by keeping your scanner driver up to date. This driver - "MiraScan342U.zip" - has been downloaded 19,346 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.
Supported Models
620u
640U
Manufacturers
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
Additional Notes
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.
Uploaded By
John Hart (DG Member) on 22-Jul-2001
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Related Driver Updates
Driver Contents File List
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 |
How to Update 640U Device Drivers Quickly & Easily
Step 1 - Download Your Driver
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.
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
Locate the device and model that is having the issue and double-click on it to open the Properties dialog box.
Select the Driver tab.
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.