Which port is commonly used by HP JetDirect printers for raw printing?

Which port is commonly used by HP JetDirect printers for raw printing?

• A. 445
• B. 9100
• C. 631
• D. 515

Answer: (B)

Raw printing sends the printer data as a direct stream over a TCP connection without wrapping it in a separate protocol layer. HP JetDirect network interfaces commonly listen on TCP port 9100 for this kind of raw, socket-based printing, which is why it’s the standard choice for sending data directly to the printer in its native language (PCL, PostScript, etc.). The other ports align with different print protocols: port 445 is used for Windows SMB/CIFS printing access, port 631 is IPP (Internet Printing Protocol), and port 515 is LPD (Line Printer Daemon). So 9100 is the correct port for raw printing to HP JetDirect printers.

Raw printing sends the printer data as a direct stream over a TCP connection without wrapping it in a separate protocol layer. HP JetDirect network interfaces commonly listen on TCP port 9100 for this kind of raw, socket-based printing, which is why it’s the standard choice for sending data directly to the printer in its native language (PCL, PostScript, etc.).

The other ports align with different print protocols: port 445 is used for Windows SMB/CIFS printing access, port 631 is IPP (Internet Printing Protocol), and port 515 is LPD (Line Printer Daemon). So 9100 is the correct port for raw printing to HP JetDirect printers.