Unit 4: Printer Configuration

 

 

 

 

 

 

 

 

 

CENTRONICS INTERFACE MODE (TABLE 4-6)

 

 

 

 

 

 

MENU

 

DESCRIPTION

 

 

 

 

 

 

 

Is typically for a line-printer and should not normally be enabled. Is used for legacy applications

 

 

 

which interpret the 8th data bit line as a PI signal.

 

 

 

Enable - factory default. The PI line is not passed directly from the host to printer; all 8 bits

 

 

 

 

Data Bit 8

 

 

 

 

are used for data bits. Characters in the Hex 80 to FF range can be accessed.

 

Enable*

 

 

 

 

Disable - when the PI line is enabled, data bit 8 internsionally indicates PI line status. To use

 

 

 

 

 

 

 

 

 

 

the PI line, disable data bit 8 and enable the Host PI configuartion option (under PI Ignored

 

 

 

 

option.

 

 

 

Paper Instruction Ignored. This signal is used to control vertical paper motion.

 

 

 

Enable - factory default. Ignores the PI signal and treats the data as characters or control

 

 

 

 

PI Ignored

 

 

 

 

codes.

 

Enable*

 

 

 

 

Disable - causes the printer to interpret the eight data lines as VFU commands when the PI

 

 

 

 

 

 

 

 

 

 

signal is true.

 

 

 

 

 

 

 

This parameter must be set to match the response polarity of the host computer.

 

 

Standard - factory default. Does not expect the host computer to invert data.

 

 

 

 

Data Polarity

 

 

Standard*

 

Inverted - expects the data received on the data lines from the host computer to be inverted.

 

 

 

 

One become zeros and vice versa.

 

 

 

 

 

 

 

 

 

 

 

Response Polarity. This parameter must be set to match the response polarity of the host

 

 

 

computer.

 

 

 

 

Resp. Polarity

 

 

 

Standard - factory default. Does not invert the response to the host computer.

 

Standard*

 

 

 

 

Inverted - inverts the response signal sent to the host computer.

 

 

 

 

 

 

 

 

 

 

The strobe signal tells the printer when to look for data on the data lines. The printer can either be

 

 

 

set to assert a busy signal after each data byte or after the printer’s buffer has filled.

 

 

 

 

Busy on Strobe

 

 

 

Enable - factory default. Asserts a busy signal after each character is received.

 

Enable*

 

 

 

 

Disable - asserts a busy signal only when the print buffers are full.

 

 

 

 

 

 

 

 

 

 

Specifies whether the data is read on the leading or trailing edge of the data strobe signal.

 

 

The options are Leading and Trailing. Leading is the factory default.

 

 

 

 

Latch Data On

 

 

Leading*

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Is a normally low signal on the parallel port. When initiated, it is designed to reset the parallel port

 

 

 

and clear the printer buffer.

 

 

 

 

Prime Signal

 

 

 

Disable - factory default. No action when the signal is initiated by the host.

 

Disable*

 

 

 

 

Enable - reboots interface and clears the printer buffer when the signal is asserted.

 

 

 

 

 

 

 

 

 

 

Top-Of-Form Action. When enabled, the printer will feed out the job in process when the prime

 

 

 

signal is activated through the Centronics interface. If disabled, the job in process may be

 

 

 

 

TOF Action

 

 

 

aborted.

 

Reset*

 

 

 

Regardless of this menu, the prime signal will also reset the printer.

 

 

 

 

 

 

 

 

 

 

 

 

 

This menu configures the amount of memory allocated for the serial port buffer. The range is 1 to

 

 

 

16 Kbytes in 1 kbyte increments.

 

 

 

 

 

 

Buffer Size in K

 

Note: If a baud rate 19200 or greater is selected, the Buffer Size in K parameter may need to be

 

16*

 

 

 

increased from the default to 16 Kbytes to improve performance.

 

 

 

The factory default is 16.

 

 

 

 

 

 

 

 

GL408-412e Operator’s Manual

4-49

Page 86
Image 86
SATO GL4XXE manual Which interpret the 8th data bit line as a PI signal, Option, Codes, Signal is true, Computer, Aborted