Printronix ProLine 5 Series Manual page 153

Centronics (Parallel) Submenu
Centronics *
(From 4–97)
Data Bit 8 PI Ignored
Enable * Enable*
Disable Disable
Latch Data
Data Bit 8
The Data Bit 8 parameter allows access to the extended ASCII character set.
Normally, this parameter is enabled. When this parameter is disabled, 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.
Disable causes the printer to interpret the eight data lines as VFU
commands when the PI signal is true.
Enable ignores the PI signal and treats the data as characters or control codes.
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.
4–100
* = Factory default
Data Polarity
Standard *
Inverted
Prime Signal
On
Leading * Enable *
Trailing Disable
Resp. Busy On
Polarity Strobe
Standard * Enable *
Inverted Disable
Buffer Size
TOF Action
in K
Reset * 1 *
Do Nothing (range 1–16)
Configuration Menus