Wire matrix ballistic impact print head

Details Wire matrix ballistic impact print head Wire matrix ballistic impact print head

B - Operations, Transporting

41

J

101/96.05

B41J 1/18 (2006.01) B41J 2/265 (2006.01) B41J 2/275 (2006.01)

Patent

CA 1046843

ABSTRACT OF THE DISCLOSURE The present invention relates to a high-speed matrix-type ballistic impact print head. High speed printers have been developed to accomodate the high output speed of information which can be delivered by high speed information handling systems. However, the printers are still relatively slow when compared to the speed of the electronics generating the information to be printed, A major problem encountered by the prior art is the physical space required to accomodate the actuators within the print head while maintaining the innertia of the print head as low as possible. Further, elec- tromagnetic actuator and stylus combination must be individually adjusted. The present invention provides an improved wire matrix ballistic impact print head for delivering printing impacts to a record medium under control of information format control circuitry, including a plurality of impact print styli, a guide for translating the plurality of styli from a circular arrangement at the impact delivering end of the styli, a plurality of electromagnetic actuators for selectively driving the styli during a print cycle of operation of the print head, and a unitary connector for maintaining the armature of each electromagnetic actuator in proper positional align- ment with a print stylus, for simultaneously adjusting all armatures to approximately the same de-energised position, for preventing bounce of the armature after an energized actuator Is de-energized and for establishing a reference plane to which all styli are referenced.

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