iPrint has the following implementation caveats:
Some drivers, such as HP and Lexmark UPDs, have problems handling advanced printing options, such as watermarks and n-up printing when they are used from user workstations.
When you perform an automatic driver or profile update for secure printers from terminal servers, the authentication dialog box is not displayed.
Clustered iPrint services can only fail over to the same platform, either OES or NetWare.
The iManager plug-ins are different for each server platform. Therefore, if you have both OES and NetWare 6.5 SP8 servers running iPrint services, you need two instances of iManager to manage iPrint—one on each platform.
iPrint uses CUPS to render print jobs before sending the print job to the Print Manager. For performance and scalability, printing from the server itself is disabled during the OES installation of iPrint.
Linux and Macintosh iPrint clients fail to install printers when communicating with the iPrint server through a proxy server.
A PPD is the Linux equivalent of a printer driver on Windows.
There are two versions of the iPrint Client: high security and low security. End users and administrators install the high-security client when using the iPrint Printer List Web page.
This means that administrators are prompted for a CUPS administrator credential when uploading PPDs. However, the prompt doesn’t specify that a CUPS administrator credential is needed and the root user credential does not work.