Printer Codes:
1. Carriage: 11"
2. Linefeed after carriage return: YES
3. Underlining: The Qume Letterpro 20 makes an underline by printing the character, backspacing one character, and printing the underline.
4. Special Codes
| Description | Begin | End |
| Boldface | Esc K | Esc M |
| Underline | Esc I | Esc J |
| Superscript | Esc D | Esc U |
| Subscript | Esc U | Esc D |
Check the printer manual for more information.