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Section 6: Using the Printer Interface
96
Universal Serial Bus Interface
The USB interface, with a signaling bit rate of 12 Mb/s (full speed), is in full
compliance with the Universal Serial Bus Specification Revision 1.0. It has a
USB Function Controller with two FIFO-based Endpoints:
• One bidirectional Control Endpoint 0 (8 bytes)
• One receive Endpoint 1 (1*64 bytes)
Serial Interface
You may want to use the serial interface when you need to use a cable more
than 6 m (20 ft.) in length, share the printer using a printer sharing device, if you
need to connect the printer to a computer that does not have a parallel port, or
to a computer that does not have an available parallel port.
Use the RS-232C protocol if the printer is more than 6 m (20 ft.) from the
computer.
Serial Interface Option
The Lexmark serial interface, part number 12T0154, supports the RS-232C
protocol. All serial interface parameters can be selected by the operator panel.
The serial interface installs internally into the back of the printer, and connects
to the serial cable, part number 1038693.
How to Connect the RS-232C Serial Interface
To connect the serial interface, use the following cable:
• Lexmark Part Number 1038693 (15.24 m or 50 ft.)