Lexmark Optra T User Manual

Interfaces
8-20
Parallel Mode 2
Parallel Mode 2 is a feature available for many Lexmark printers. The factory default
setting is
On.
The timing required by the printer is clearly indicated in “Standard Protocol Data
Transfer Sequence” on page 8-16. This is the classic Centronics interface timing.
By setting
Parallel Mode 2 to Off from the printer operator panel, through MarkVision,
or through a PJL command, the printer changes when data is valid. Once
Parallel
Mode 2
is set to Off, the printer takes data from the host computer at the trailing edge
of STROBE. This is the last possible host driven transition where data should be valid.
Note: You may find this feature helpful when having data transfer reliability
problems.
Signal Descriptions
STROBE, AUTOFD* Receivers for Most Printers
The following diagram illustrates the STROBE, AUTOFD* receivers for most printers.
+5V
1.0K ohm ±5%
Connector
470 ohm ±5% FCT 2828
Signal
150 pF ±20%
GND
Pin

Lexmark Optra T Specifications

General

Brand	Lexmark
Model	Optra T
Category	Printer
Language	English