Matrix print head with improved armature retainer

Matrix printer

Matrix printer comprising lubricated printing wires

Matrix printer comprising parallel printing pins

Matrix printer having detachable recording elements

Matrix printer incorporating intermittent ink ribbon transport

Matrix printer with automatic printing head adjustment

Matrix printer with magnetic head adjustment

Matrix printer with optimum printing velocity

Matrix type electrophotographic printing process and device

Matrix wire print head and method for the manufacture thereof

Means and method for electronic coding of ideographic...

Means and method for enhancing ribbon lift

Means for and method of detecting the state of ink remain in...

Means for encoding ideographic characters

Means for locating an eyelid assembly to a continuous ink...

Means for preventing drying of ink at nozzles of print heads

Means to connect printing presses in tandem

Means to receive a combination of two variable volume...

Measurement of paper speed using laser speckle detection