Centronics (parallel) submenu, Data bit 8, Pi ignored – Printronix P8000 Series Cartridge Ribbon Printer User Manual
Page 98: Data polarity, Chapter 4
98
Chapter
4
HOST INTERFACE Menu
Centronics (Parallel) Submenu
Data Bit 8
•
Enable
(factory default). 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
(factory default). 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
(factory default). 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 93)
Prime
Signal
TOF Action
Buffer Size
in K
1
Enable*
Disable
Reset*
Do Nothing
16*
(1-16)
* = Factory Default
1
OpenPrint HD and H-Series products have an extended
range to 256 with a default of 64.
Auto
Trickle
Disable*
Enable
Trickle
Time
1/4 sec*
1/2 sec
1 sec
2 sec
4 sec
8 sec
16 sec
Off
Data Bit 8
Enable*
Disable
PI Ignored
Enable*
Disable
Data
Polarity
Standard*
Inverted
Resp.
Polarity
Standard*
Inverted
Busy On
Strobe
Enable*
Disable
Latch
Data On
Leading*
Trailing