Gerard asked
  I would like to emulate a TTY, using a daisywheel
typewriter.
 One immediately think : " Find an IBM Selectric, a Friden flexowriter or a like
"
 But NO, I want something less complex, mechanical wise.
 That's why I want to investigate on daisywheel typewriters.
 I am aware of IBM Actionwriter and Triumph/Adler/Royal Gabriele 9009 that can be used
 as a printer with a dedicated interface BUT that is one way only : Printer only !
 From my investigation, **** so far ***, KEYBOARD does not send ( upload ? ) any signals.
 ( or a special command code is required ?? )
 Any suggestion for "others" daisywhell typewriters that could do
 OR someone already went this way ?
 OR any documentation ( even user's manual ) on the dedicated interface :
 ( IF 600 Computer Interface for Triumph/Adler/Royal Gabriele 9009 )
 (  ???name???  for IBM Actionwriter ) 
How about
https://hackaday.com/2017/01/14/vintage-ibm-daisywheel-prints-again-after-r…
Steve