Lower ASCII Control Codes
If a Custom Commands tab is displayed for a device, you can incorporate lower ASCII control codes into the print stream in the positions listed on the Custom Commands tab. The following table lists common control codes.
Note: Control codes must be in uppercase and must begin and end with angle brackets. To enter upper case text that includes < or > but should not be converted to a control code, enclose the text with << and >>. For example, <<US>> is converted to <US>. Lower case or mixed case text enclosed in < and > will remain as is and will not be converted into a control code.
| Control Code | Description | Decimal | Hexadecimal |
|---|---|---|---|
|
<NUL> |
Null Character |
0 |
0 |
|
<SOH> |
Start of Header |
1 |
1 |
|
<STX> |
Start of Text |
2 |
2 |
|
<ETX> |
End of Text |
3 |
3 |
|
<EOT> |
End of Transmission |
4 |
4 |
|
<ENQ> |
Enquiry |
5 |
5 |
|
<ACK> |
Acknowledgment |
6 |
6 |
|
<BEL> |
Bell |
7 |
7 |
|
<BS> |
Backspace |
8 |
8 |
|
<HT> |
Horizontal Tab |
9 |
9 |
|
<LF> |
Line Feed |
10 |
A |
|
<VT> |
Vertical Tab |
11 |
B |
|
<FF> |
Form Feed |
12 |
C |
|
<CR> |
Carriage Return |
13 |
D |
|
<SO> |
Shift Out |
14 |
E |
|
<SI> |
Shift In |
15 |
F |
|
<DLE> |
Data Link Escape |
16 |
10 |
|
<DC1> |
Device Control 1 (XON) |
17 |
11 |
|
<DC2> |
Device Control 2 |
18 |
12 |
|
<DC3> |
Device Control 3 (XOFF) |
19 |
13 |
|
<DC4> |
Device Control 4 |
20 |
14 |
|
<NAK> |
Negative Acknowledgment |
21 |
15 |
|
<SYN> |
Synchronous Idle |
22 |
16 |
|
<ETB> |
End of Transmission Block |
23 |
17 |
|
<CAN> |
Cancel |
24 |
18 |
|
<EM> |
End of Medium |
25 |
19 |
|
<SUB> |
Substitute |
26 |
1A |
|
<ESC> |
Escape |
27 |
1B |
|
<FS> |
File Separator |
28 |
1C |
|
<GS> |
Group Separator |
29 |
1D |
|
<RS> |
Record Separator |
30 |
1E |
|
<US> |
Unit Separator |
31 |
1F |
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