Printronix ANSI Printer manual Default Evfu Table, Description

The Default

Table 24. Sample EVFU Loading Program

	Program Instruction	Remarks
1560	LPRINT CHR$(72);CHR$(64);	Selects Channel 4. See Table 23.
1570	FOR I=1 TO 31	31 filler lines
1571	LPRINT CHR$(64);CHR$(64);
1572 NEXT I
1580	LPRINT CHR$(80);CHR$(64);	Selects Channel 5. See Table 23.
1590	FOR I=1 TO 8	8 filler lines
1591	LPRINT CHR$(64);CHR$(64);
1592 NEXT I
1600	LPRINT CHR$(64);CHR$(66);	Selects Channel 8. See Table 23.
1610	LPRINT CHR$(27);“\”;	Exit EVFU loading

1620 END

Once the EVFU program has been enabled and loaded, sending the appropriate channel code to the printer will cause any data in the buffer to print and will move the paper to the next line on the form having the specified channel number assigned in EVFU memory.

The Default

The default EVFU will be generated based on the current forms length and LPI setting under the following conditions:

•When the printer is initialized.

•When either the forms definition or LPI setting is changed.

•When the start EVFU load escape sequence ESC ]! is immediately followed by the end load sequence ESC \.

•When the clear vertical tabs ESC [4g sequence is received.

Table 25 shows how the default EVFU table is defined.

	Table 25. Default EVFU Table
Channel	Description
1	Top Margin (first line)
2	Bottom Margin (last line)
3	Single Spacing
4	Double Spacing
5	Triple Spacing
6	Half Form

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