 This allowed the user to take advantage of new features in a printer that were not intrinsically supported by Scripsit, such as different fonts or colours, or printing extended ASCII characters to produce simple lines and boxes.This was possible as printer manuals of the day included a full list of supported control character sequences for such functionality.Isaac Asimov used Scripsit running on a TRS-80 Model II Computer for over nine years, and wrote over 11 million words with the program.