SYSTEM OF DETECTION OF PRINTER'S TAPE MOTION Russian patent published in 2007 - IPC G01P13/00 

FIELD: printer equipment.

SUBSTANCE: system belongs to systems for feeding printing tape for printers and, in particular, to system of detection of tape motion in cassette containing printing tape. System has rotating element 10, which has at least one element, oriented at radial direction and mounted for rotation from at least first position to reach at least second position, detector element 20, which preferably has to be Hall detector, magnet 30 which creates magnetic field. Radial-oriented element 11 changes magnetic flux of magnetic field when the flux approaches magnet 30 or departs from it. Detector element 20 reveals change in magnetic flux.

EFFECT: improved reliability of measurement; higher speed of operation.

45 cl, 18 dwg