Franking apparatus and printing means thereof

Details Franking apparatus and printing means thereof Franking apparatus and printing means thereof

1998-09-02

2000-05-23

Eickholt, Eugene

Typewriting machines

Including interposed inking device for record-medium

Ribbon-feeding mechanism

4002351, 242564, 318 7, B41J 314

Patent

active

060658835

ABSTRACT:
A method and apparatus is disclosed for controlling energization of a take-up motor driving a take-up spool of used ink ribbon in thermal printing apparatus. Prior to a printing cycle, the take-up motor is energized to rotate the take-up spool until ternsion in the ink ribbon caused rotation of an ink ribbon supply spool. The take-up spool is then rotated a predetermined amount and resultant rotation of the supply spool is determined by sensing means. A function dependent upon the rotation of the supply spool is determined and used during subsequent operation of the apparatus to control energization of the take-up motor such as to wind the used riobbon onto the take-up spool with a desired amount of tension in the used ribbon.

REFERENCES:
patent: 4479081 (1984-10-01), Harris
patent: 4743811 (1988-05-01), Katayama
patent: 4788558 (1988-11-01), Caldwell et al.
patent: 5209587 (1993-05-01), Herbert et al.
patent: 5318368 (1994-06-01), Fogle et al.
patent: 5366303 (1994-11-01), Barrus et al.
International Search Report EP 96 300578.0.

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