Epson stylus CX3900 scanner not working with Windows 7 64 bit

Go to the website linked, select you operating system, and download the desired driver and software. Run the setup files to install.
Epson Stylus CX3900 Drivers Software

Ya plug it up then turn it on. Go to start on task bar then to printers/scanners button and it will show up there. Right click on it and click properties. Then update driver. Let it automatic search online for it. If you cant find it there go to control panel/system/find the usb or printer connection right click and properties updte driver\

You can download a new driver from Epson.com.
Drivers section sometimes in support.

Download & install the "Epson Stylus CX4200 All-in-One Printer" @ Drivers and Utilities Combo Package

Windows 7 64-bit compatible, Windows Vista 64-bit
epson13071.exe - 20.9MB - posted on 07/07/09

This file contains everything you need to use your Epson Stylus CX4200 with Windows Vista 64-bit.
This package consists of the following items:
•Printer Driver v6.5
•Scanner Driver v3.04
•Epson Status Monitor 3
•Epson EasyPrint v3.10

Uninstall your previously installed AIO drivers before installing the downloaded installer.

Hope it helps.

Here's the link to help you most... goodluck

if the unit is directly connected via USB, another program or prev installed scanner software is using "the path" to communicate with the scanner. Can only use one scanner at a time with windows.

Hi macera
Go to this website by clicking on this link
http://tech.epson.com.au/downloads/index.asp
Under Epson product categories:
Select Multifunction Inkjet Printer
Under Model:
Select Epson Stylus CX3900
On the next screen, choose your operating system
Download and install
Wish you good luck.
If this answer helped you, please give a rating.
luciana44

Cannot scan  on IMac with Epson Stylus CX3900?

The drivers for most operating systems is here
http://www.epson.com.sg/epson/drivers/driver_download.htm?dc=1&mode=3&m=false&catid=4&pid=996

The web site says that these are “drivers” but most of then are 7Mb (Zipped) so it might be more then just a driver

The software is a different story, I have had Epson sent me a CD after a butt kissing letter, it’s worth a try.

Good luck

Not a computer problem as such
There is in general an issue with drivers for peripherals of all types and brands with VISTA and it seems the Manufacturer are digging their heels in and not making driver changes.
E-mail Microsoft support and see what they have to say
And keep kicking Epson
It is really up to peripheral manufacturer to keep up.

Meanwhile you could try this
Look up the Vista Help[My Computer- Help]
Check out Program Compatibility
The idea is you set the computer  to pretend is its an older system XP/98 etc and load the program  once that is set.