Cancel Printable Code Area Expansion (Esc 7); Copy Rom Into Ram (Esc : Nul); Select Unidirectional Mode (One Line Only) (Esc <); Set Msb To 0 (Esc =) - IBM 4247 A00 User Manual

This control enables codes X'80' through X'9F' from the active character set to
become printable characters instead of control characters.

Cancel Printable Code Area Expansion (ESC 7)

This control cancels Printable Code Area Expansion (ESC 6).

Copy ROM into Ram (ESC : NUL)

This control copies the characters in ROM into RAM. Specific characters may be
redefined.
Select Unidirectional Mode (one line only) (ESC <)
This control selects unidirectional printing from left to right for one line only. ESC <
is cancelled by a Carriage Return. The printhead begins the line at the Home
position, prints to the end of the line, then is cancelled by the CR that returns the
printhead to Home.

Set MSB to 0 (ESC =)

This control sets the most significant bit (MSB) of all incoming data to 0. The MSB
is bit 7. This control only affects text and control code data. This control can prevent
the problem of some system applications that always send data with the MSB set to
1, which results in italic or graphics printing in Epson printers.
Set MSB to 1 (ESC >)
This control sets the most significant bit (MSB) of all incoming data to 1. The MSB
is 7. This control only affects text and control code data.

Reassign Graphics Mode (ESC ?)

This control reassigns a graphics command (ESC K, ESC L, ESC Y, or ESC Z) to a
different mode (K, L, Y, or Z).
Option
Single-Density
Double-Density
High-Speed Double-Density *
232
4247 Printer Model A00 User's Guide
1B 37
1B 3A 00
1B 3C
1B 3D
1B 3E
1B 3F S
00 00
NN
Alternate
Code
ESC K
ESC L
ESC Y
Horizontal
Density
NN (dots/in.)
0 60
1 120
2 120