Benjamin M Starr

US Patent:

39541673, May 4, 1976

Filed:

Oct 17, 1974

Appl. No.:

5/515509

Inventors:

Raymond E. Kranz - Mount Prospect IL
Benjamin M. Starr - Lake Forest IL

Assignee:

Extel Corporation - Northbrook IL

International Classification:

B41J 33518

US Classification:

197165

Abstract:

Ribbon reversing mechanism in a high speed printer (telecircuitry) including a ribbon driving stepping motor and a print head drive motor both incrementally driven by pulses from the telegraph circuit. The gear ratios in the ribbon drive train are chosen to ensure that the ribbon is advanced in increments different than the increments of print head movement. The ends of the ribbon are provided with eyelets which are sensed by a mechanism which operates to reverse the ribbon driving motor.