Printronix T4204 - Manual (Page 80)

80
Chapter 3 Menu Options
Centronics (Parallel)
Data Bit 8
• Enable. Allows access to the extended ASCII character set.
• Disable. The printer interprets bit 8 of each incoming data character as a
zero, regardless of its actual setting.
PI Ignored
The PI (Paper Instruction) signal is used to control vertical paper motion.
• Enable. Ignores the PI signal and treats the data as characters or control
codes.
• Disable. Causes the printer to interpret the eight data lines as VFU
commands when the PI signal is true.
Data Polarity
The Data Polarity parameter must be set to match the data polarity of your
host computer.
• Standard. Does not expect the host computer to invert the data.
• Inverted. Expects the data received on the data lines from the host
computer to be inverted. Ones become zeros, and vice versa.
CENTRONICS
(from page 54)
Data Bit 8 PI Ignored Data Polarity Resp.
Polarity
Busy On
Strobe
Latch
Data On
Enable*
Disable Enable*
Disable Standard*
Inverted Standard*
Inverted Enable*
Disable Leading*
Trailing
* = Factory Default
Prime
Signal
TOF Action Buffer Size
In K
Enable*
Disable Reset*
Do Nothing 8*
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