Here’s a 1990 instruction guide for the Olivetti ET-2250/Olivetti ET-2450.
Electronic Typewriter Instruction Guides
The following guide is viewable online and is freely shared. A small donation, however, will make it easier for me to continue to add to this archive. If you have donated, a printable copy of the PDF will be made available to you on request. Thank you!
Enjoy the wedge!