Printronix ANSI Printer Programmer's Reference Manual page 68

Chapter 3
ANSI EVFU
Each "channel control code" pair of bytes has the capability to indicate
multiple channels since each channel indication has a unique bit position
which is either ON - 1 or OFF - 0.
Decimal Value
1 2
64 64
65 64
66 64
68 64
72 64
80 64
96 64
64 65
64 66
64 68
64 72
64 80
64 96
Table 24 is a sample program to load an EVFU table.
Program Instruction
1500 WIDTH "LPT1:",255
1510 LPRINT CHR$(27);"]!";
1520 LPRINT CHR$(65);CHR$(64);
1530 FOR I=1 TO 4
1531 LPRINT CHR$(64);CHR$(64);
1532 NEXT I
1540 LPRINT CHR$(68);CHR$(64);
1550 FOR I=1 TO 18
1551 LPRINT CHR$(64);CHR$(64);
1552 NEXT I
68
Table 23. Channel Control Codes
Binary Value
1 2
1000000 1000000
1000001 1000000
1000010 1000000
1000100 1000000
1001000 1000000
1010000 1000000
1100000 1000000
1000000 1000001
1000000 1000010
1000000 1000100
1000000 1001000
1000000 1010000
1000000 1100000
Table 24. Sample EVFU Loading Program
Required by some BASIC languages to avoid
auto LF at column 80
Enables EVFU loading.
Resets TOF, Channel 1. See Table 23.
4 filler lines
Selects Channel 3. See Table 23.
18 filler lines
ASCII
Remarks
Character
1 2
@ @ Fillers
A @ Channel 1
B @ Channel 2
D @ Channel 3
H @ Channel 4
P @ Channel 5
' @ Channel 6
@ A Channel 7
@ B Channel 8
@ D Channel 9
@ H Channel 10
@ P Channel 11
@ ' Channel 12
Remarks