Printer Interface for the Intellivision Keyboard Component

The Intellivision gaming console had a computer upgrade called the Keyboard Component, which itself had a printer available for it. The Printer Interface is the rare adapter that connected that printer to the Keyboard Component.
This deep-dive video covers A LOT of detail for the Printer Interface and what is currently known of its printer. It is the culmination over almost 6 months of research.
Chapters:
1. 00:00 Intro
2. 00:21 What is it?
3. 00:50 Demo
4. 03:01 Hardware Internals
5. 04:08 Printer Compatibility
6. 07:44 Unknowns
7. 09:36 Late Breaking Corrections
8. 12:46 Outro

Schematic and AtariAge discussion forum:
https://atariage.com/forums/topic/328283-printer-interface-%E2%80%93-research-and-video/