Aswell as my daughter I've installed the drivers (Vista and 7) of the Lexmark x4550 wireless, but she can only print when my laptop is 'on'. How can she print without the use of my laptop.

Once you load the driver successively then don't try to fiddle with driver. Remove the printer from the system and switch on whether the printer

initialize proper, try to print one self test page.

First, check if your Windows 7 is running on 32-bit or 64-bit operating system by going to the Start menu > right click on Computer > Properties. Then, download and install the Lexmark X4550 driver by visiting the Lexmark website at http://bit.ly/cVGxkh (for 32-bit) or at http://bit.ly/b6TXD2 (for 64-bit). Follow the instructions in the software. Thanks.

Uninstall the Lexmark software from your computer by following the steps in this link: http://bit.ly/cu3xvM. After restarting pc, check if your Windows 7 is running on 32-bit or 64-bit operating system by going to the Start menu > right click on Computer > Properties. To reinstall, download the driver using this link: http://bit.ly/cVGxkh (for 32-bit) or this link: http://bit.ly/b6TXD2 (for 64-bit). Thank you for choosing Lexmark.

Hi You can download a driver Software from my website then you can use the driver to set your printer up.
Just click on this link and it will download for you, and it is best to save it on your desktop so you can find it.
This is for the Lexmark X4550 Printer and will work for Win and XP and Vista
Please let know if it works for you thanks

Link= http://www.4all2sell.com/driver/Lexmark X4550-Win-XP-Vista.exe

Ones you have downloaded just double click and it will take you through the installing.
Leave the USB lead out when you are installing the software and as it is installing it will ask you when to put thyou to put it in

Please come back and just gave a vote, it will gave me some satisfaction to know am helping some one and to go on helping.
All The Best: Pineworks

I have tried to set up this wireless printer on my laptop (windows vista basic). I run through installation and get message - installation complete and the green indicator light is fully on. When I try and print I get message Printer cannot communicate with computer - please turn on 'Enable Biodirectional Communication' in printer properties. I go to control panel/printer/propertie/ports/ and I see Enable Biodirectional communication - the box is grayed out and I cannot enable it. Any suggestions?

Hi,
First uninstall all the Lexmark software that you may have installed, then click on the following link and follow the instructions on how to install your printer on Win 7.
http://bit.ly/bVQnHy

"Bi Directional Printing" is a statement of Parallel Port printing. Are you connected from your PC to the Printer via the parallel port?\

Did you disconnect the USB cable form the PC and then delete the current driver prior to installing the Win 7 driver?

Do these vista laptops have SP1 

You can download the driver from the link below

http://drivers.softpedia.com/get/PRINTER/LEXMARK/Lexmark-X4550-Printer-Driver-10111.shtml

This driver will work for XP and Vista

re install the software again, dont skip nor ignore any info during installation

cheers