Electroprinting tubes and their applications to television facsimile

This paper describes two types of electroprinting tubes, one of which has been applied to television facsimile. The electrostatic printing tube and fiber-optics printing tube have a resolution of 8 lines/mm and 15 lines/mm, and a writing speed of 200 m/s and 1700 m/s, respectively. The electron scanning method utilizing the fiber-optics printing tube showed good results in experimental television facsimile.