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4–100 Configuration Menus
Centronics (Parallel) Submenu
Centronics
*
Data Bit 8
Resp.
Polarity
Busy On
Strobe
Data Polarity
PI Ignored
Latch Data
On
Prime Signal
T
OF Action
Leading *
Trailing
Enable *
Disable
Reset *
Do Nothing
Buf
fer Size
in K
1 *
(range 1–16)
Enable *
Disable
Standard *
Inverted
Standard *
Inverted
Enable *
Disable
Enable*
Disable
* = Factory default
(From
4–97)
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.