The Selectric  Interface A Hands-on Approach by George Young  
A Wayne Green Publiction, Peter Borough NH softcover  125 pages plus a foldout 
Computer printers range from small and inexpensive to costly and high quality. 
Selectric Interface offers another alternative—inter- facing an IBM Selectric I/O writer to a computer for printed output. 
In his classroom-style approach, George Young covers different methods of interfacing. He includes information on: 0 6502, 8080, and Z-80 computers o Selectric models 2740, 2980, and the Dura 1041
 - Software needed to interface the different models 
- Step-by-step interfacing procedures 
- And more! George Young teaches at the high school level. 
With his instruction and some background in hardware and interfacing, you can have a working, letter-quality printer and gain a better understanding of how it works.  ISBN 0-88006-051-4