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Windows XP Professional provides three types of print monitors: language, local port, and remote. Language monitor The language monitor provides the language that the client and printer use to communicate. If the printer is bidirectional, the language monitor allows you to monitor printer status. You can request configuration and status from the printer, and the printer sends unsolicited status (such as Paper tray empty ) to the client. Local port monitor The local port monitor (Localspl.dll) controls parallel and serial input/ output (I/O) ports where a printer might be attached. It sends print jobs to local devices, including those on familiar ports such as LPT1 and COM1. Remote port monitor The remote port monitor includes all other port monitors supplied with Windows XP Professional, and it enables printing to remote printers. An example is Lanman Print Services Port.

Windows XP contains the networking software features that you need for most any network you might want to join. However, there are important differences in the networking capabilities of Windows XP Home Edition and Windows XP Professional. Windows XP Home Edition supports workgroup networking, but does not support domain networking, meaning that a computer running Windows XP Home Edition cannot be part of or log on directly to a domain-based network. If you plan to set up a domain-based network using Active Directory, make sure all the workstations that will be part of the domain run Windows XP Professional.

The local print provider (Localspl.dll) that comes with Windows XP Professional includes the local port monitor and the Winprint print processor. The local port monitor controls the parallel and serial ports to which printers are connected. The standard port monitor is used for most network print jobs. Port monitors such as the NetWare Port Monitor or AppleTalk Port Monitor control other ports, such as TCP/IP or Ethernet.

Part II:

Windows XP Professional includes port monitors that enable printing to different types of printers in different network environments. Following is a list of some of the port monitors included with Windows XP Professional:

1

The preferred network port monitor in Windows XP Professional is the standard port monitor. SNMP is used to configure and monitor the printer ports. In addition to the standard port monitor, Internet printing adds an HTTP print provider. For more information, see Methods of Sending Print Jobs earlier in this chapter. The local port monitor is the standard monitor for printers connected directly to your computer. If you add a printer to your computer by using a serial or parallel port (such as COM1 or LPT1), this monitor is used. The USB port monitor is the monitor used for USB printers connected directly to your computer. If you plug your USB printer into your computer, this monitor is used. LPR Port monitor is used to send jobs over TCP/IP to a print server or printer running an LPD service. LPR Port monitor can be used as an alternative to the standard port monitor to Unix print servers. Use LPR Port if your LPD target server requires an RFC 1179-compliant Line Printer Remote protocol. Note

The standard port monitor is the preferred port monitor for Windows XP Professional. The standard port monitor supports the RAW protocol, TCP/IP printing, and the non-RFC LPR protocol.

note Windows 2000 Professional workstations can also fully participate in an Active Directory domain; however, configuring them to do so is outside the scope of this book.

PJL Monitor (Pjlmon.dll) communicates in Printer Job Language (PJL). Any bidirectional print device that uses a bidirectional port monitor that uses PJL can use the PJL language monitor.

A user on a computer that runs Windows XP Professional can access information about available printers and send jobs to those printers on a Windows 2000 print server, or the user can send jobs to any print server that supports IPP v1.0. To find an Internet printer and send a print job to that printer, the following must occur: 1. A user connects to a Windows 2000 or Windows Server 2003 print server over the Internet by typing the URL for the print device. 2. The print server requires the client to provide authentication information. This ensures that only authorized users print documents on your printer, rather than making your printer available to everyone with an Internet connection.