Self-aligning print head assembly with advanced shielding charac

Details Self-aligning print head assembly with advanced shielding charac Self-aligning print head assembly with advanced shielding charac

1989-07-24

1990-09-04

Reynolds, Bruce A.

Recorders

Thermal recording

219216, 400120, G01D 1510, H05B 100, B41J 302

Patent

active

049548395

ABSTRACT:
A shielded print head assembly has a plurality of pieces that are self-aligned with one another. A base forms a ground plane, and includes a registry structure thereon which is preferably a pin extending above a top surface thereof. A circuit board is aligned by connecting inner surfaces of the circuit board around the pin to precisely locate a connector of the circuit board. A print head is located adjacent to the circuit board such that its connector is exactly adjacent to connector of the circuit board. An innerface connector is then used to connect between the circuit board connector and the print head connector, the interface connector being completely shielded by a cover. The interface connector is also held in self-alignment by the registry structure. The interface connector also has a top surface defining an insulation area, coupled against the cover which forms a ground plane. In this way, a shielded and self-aligned multi-piece print head is formed.

REFERENCES:
patent: 4184063 (1980-01-01), Heiling et al.
patent: 4361844 (1982-11-01), Nozaki et al.
patent: 4369452 (1983-01-01), Anno et al.
patent: 4588997 (1986-05-01), Tuan et al.
patent: 4626871 (1986-12-01), Schuessler
patent: 4651164 (1987-03-01), Abe et al.
patent: 4712930 (1987-12-01), Maruno et al.

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