Sensor hub for a print ribbon supply roll and method

Details Sensor hub for a print ribbon supply roll and method Sensor hub for a print ribbon supply roll and method

1999-07-27

2000-11-28

Eickholt, Eugene

Typewriting machines

Including interposed inking device for record-medium

Means auxiliary to ribbon mechanism

400249, B41J 3332

Patent

active

061526258

ABSTRACT:
A sensor hub for a print ribbon supply roll includes a sleeve shaped to attach to the roll core of the print ribbon supply roll, a pin-receiving plate secured to the sleeve and including a plurality of apertures, and a plurality of pins permanently secured in selected ones of the apertures. The pins are arranged in the apertures according to a print ribbon type to thereby identify the print ribbon type. The sleeve, pin-receiving plate and pins are preferably molded in a single step operation, thereby decreasing manufacturing time and reducing manufacturing costs. By molding the sleeve and pin-receiving plate around the pins, the pins can be permanently secured in the apertures of the pin-receiving plate, and the mold cavity can be constructed so as to eliminate susceptibility to human error.

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