I have just installed Windows 7 64Bit operating system. Install Phpmailer On Windows. I have be successful in installing several other more recent HP printers in the office. However, my main 'workhorse' printer is a HP Laserjet 4050 and I have downloaded the Universal Printer Driver v5.0. Printer Canon Pixma Ip4870 on this page. 3 for Windows x64 - PCL 5 and PCL 6, and in both cases it does not find a suitable driver. The HP download site states these Universal Drivers will work, but I cannot get it to install.

Hp Compaq 6200 Pro Microtower Pc Xp Drivers. Detailed specifications information for HP Universal Print Driver (UPD) for Windows. Includes links to download this software.