TCP direct print
The print data can be received directly via TCP/IP and sent to the parallel port or USB port to the printer. The data are not modified before printing and there is no spooling of print jobs. TCP/IP handles the flow control.
Configuring TCP direct print
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In Setup> Printer, under TCP direct print, select the option Enabled.
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Specify the relevant port number for the communication. The default port numbers are: 9101 for USB printers 9100 for parallel port printers
Note:
The specified ports are opened on the device.