HP 175X, 310X Introduction, Requirements, Print Files, Using FTP Printing, FTP Connections

FTP Printing

for HP Jetdirect 310x external print server/Internet connector for USB

Note: Not applicable to 175x

Introduction

FTP (File Transfer Protocol) is a basic TCP/IP connectivity utility to transfer data between systems. FTP printing is a way to use FTP to send print files from a client system to an HP Jetdirect-connected printer. In an FTP printing session, the client connects and sends a print file to the HP Jetdirect FTP server which in turn passes the print file to the printer.

The HP Jetdirect FTP server can be enabled or disabled through a configuration tool, such as Telnet or the embedded web server.

Requirements

FTP printing described here requires the following:

●HP 310x print server

●TCP/IP client systems with FTP that complies with RFC 959.

For the most recent list of tested systems: http://www.hp.com/support/net_printing

Print Files

The HP Jetdirect FTP server transfers print files to the printer but does not interpret them. For proper printing, print files must be in a language recognized by the printer (such as PostScript, PCL, or unformatted text). For formatted print jobs, you must first print to a file from your application using the driver for the selected printer, then transfer the print file to the printer through an FTP session. For formatted print files, use binary (image) type transfers.

Using FTP Printing

FTP Connections

Similar to standard FTP file transfers, FTP printing uses two TCP connections: a control connection and a data connection.

Once an FTP session is opened, it remains active until either the client closes the connection or the data and control connections are idle for a time that exceeds the idle timeout period (default is 270 seconds). The idle timeout can be set through various TCP/IP configuration tools, such as BOOTP/TFTP, Telnet, printer's control panel, the embedded web server (see TCP/IP Configuration), or management software.

Control Connection