Use the on-screen “PosterPrint” button to print from any MS Windows application you are using. Select the printer you wish to use, and the virtual printer will appear in the Print Dialog box. Note: If the dialog box does not appear, you may be in a Java-enabled program, such as Microsoft Office, Netscape or Firefox. In this case, follow the prompts to enable the Java Plug-in for the program you are using. To print from a Mac OS X program, you must download the PosterPrint driver from the PosterPrint web site. Once you have downloaded the PosterPrint for Mac OS X. Open the downloaded file, and select the Open option. Click the "Choose" button to open the Browse for Plug-ins dialog box. Select the "Macintosh" tab, then click "Install Plug-ins". Click on the "OK" button to install the plug-in and to select the virtual printer. Please note: you may need to restart your program before printing. Mac OS X users should be aware that Adobe Reader does not currently support this method of printing from an Acrobat file. You may need to use a different program to print. While any type of printer can be used with the PosterPrint, we recommend using the PosterPrint virtual printer with our PosterPrint Online Shop printers. Simply choose your desired type of printer and follow the instructions below. NOTE: Please use the following standard printer drivers: Designjet 3570-E -Prints either Posters or Hi-Res Posters with a min. print resolution of 72 ppi. Designjet 3600-E -Prints either Posters or Hi-Res Posters with a min. print resolution of 72 ppi. Designjet 6800-E -Prints Hi-Res Posters with a min. print resolution of 96 ppi. Designjet 6800-E2 -Prints Hi-Res Posters with a min. print resolution of 96 ppi. Designjet 6800-E3 -Prints Hi-Res Posters with a min. print resolution of 96 ppi. Designjet 7800-E -Prints Hi-Res Posters with a min. print resolution of 120 ppi. Designjet 7800-E2 -Prints Hi-Res Posters with a min.