Compact flex-circuit for modular assembly of optical sensor comp

Details Compact flex-circuit for modular assembly of optical sensor comp Compact flex-circuit for modular assembly of optical sensor comp

1995-10-31

1999-03-16

Metjahic, Safet

Incremental printing of symbolic information

Ink jet

Controller

347 37, B41J 29393

Patent

active

058836462

ABSTRACT:
A carriage-mounted optical sensor for a color inkjet printer/plotter includes a modular flex-circuit assembly which has a co-planar junction which directly interconnects with all electronic components such as through conductive support leads from a photocell and LEDs. Additional components are then self-attachable to the modular flex-circuit assembly to form an optical sensor unit having the LEDs positioned to transmit light to a print zone, and having the photocell positioned to receive reflected light from the print zone. A cover provides a protective shield for the electronics in the optical sensor, and is self-attachable in a predetermined position on the carriage. Separate activation circuits are provided for each LED to allow different LEDs to be selectively activated depending on the type of markings on the media.

REFERENCES:
patent: 4471384 (1984-09-01), Sato et al.
patent: 5170047 (1992-12-01), Beauchamp et al.
patent: 5353052 (1994-10-01), Suzuki et al.
patent: 5600350 (1997-02-01), Cobbs et al.

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