Section 6 - Using The Printer Interface; Parallel Interface; Parallel Interface Voltage Levels - Lexmark FORMS 249X Technical Reference

Using the
Printer Interface
The printer interface is the physical connection point between the printer and
other devices, such as a computer. The 2400 series printer offers a choice of
three printer interfaces: parallel, Universal Serial Bus (USB), or serial.
Use the parallel interface and parallel cable if you are attaching the printer to a
personal computer's parallel port.
Use the USB interface and USB cable when you are attaching the printer to a
personal computer's USB port.
Use the serial interface and serial cable when you:
• share the printer using a printer sharing device.
• 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.

Parallel Interface

Use Lexmark parallel cable 1329605 (3 m or 10 ft.) or 1427498 (6.1 m or 20 ft.).
The parallel cable must be IEEE 1284-compliant and must support two-way
(bidirectional) communications printing
The parallel interface sends 8 bits (one byte) of data at one time and is
transistor-transistor logic (TTL) compatible.

Parallel Interface Voltage Levels

The maximum voltage level for control or data lines is +5.2 volts.
A control or data line is:
• High, if the voltage is greater than +2.4 volts.
• Low, if the voltage is less than +0.8 volts.
Section
Section 6: Using the Printer Interface
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