Escape Sequences

Table 4. Factory Settings

Characteristic

Default Setting

 

 

 

 

Auto LF

Enable

Define LF Code

LF = CR + LF

Printer Select

Disable

20 CPI Condensed

Enable

Alt Set 80-9F

Control Code

 

 

Escape Sequences

Some KS control codes consisting of more than one character are called escape sequences because the first character in the sequence is the ASCII ESCape character. ESC alerts the printer that a special function command— not printable characters—follows.

The format for an escape sequence is:

ESC (parameter 1)(parameter 2)...(parameter n)

For example, to select emphasized (offset) print, send the ESC character immediately followed by the E character (do not add a space character):

ASCII: ESC E Hex: 1B 45Dec: 27 69

FS Sequences

Another type of control code which consists of more than one character is called an “FS sequence,” because the first character is the ASCII FS character. This control code is used when the printer is printing Double Byte Character Set (DBCS) characters. The FS alerts the printer that a special function command (not printable characters) follows. Most FS commands work only on DBCS characters.

The format for an FS sequence is:

FS (parameter 1)(parameter 2)...(parameter n)

For example, to rotate DBCS characters by 90×counter-clockwise, send an FS character immediately followed by the J character:

ASCII: FS J Hex: 1C 4ADec: 28 74

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Printronix P7000 H-Series, PSA3 manual Escape Sequences, FS Sequences