Printing machine carriage having a magnetic encoder

Details Printing machine carriage having a magnetic encoder Printing machine carriage having a magnetic encoder

1992-12-22

1994-03-29

Burr, Edgar S.

Typewriting machines

Means auxiliary to typewriting function

Indicator means

4007051, 400322, B41J 1900

Patent

active

052978818

ABSTRACT:
A printing machine for printing at printing positions along a line, and for performing a positional control by linear encoder. The printing machine comprises a linear encoder memory and detecting means. The linear encoder memory has a line-shaped magnetic recording medium formed of an alloy consisting essentially of iron, chromium, cobalt, no more than 0.03 weight % of carbon, and optionally 0.05 to 3 weight % of at least one element selected from the group consisting of titanium, vanadium, molybdenum and tungsten. The linear encoder memory extends parallel along a line of printing positions. The detecting means is coupled to the magnetic recording medium and is movable relative to the magnetic recording medium. The decting means detects a magnetic record on the magnetic recording medium. The detecting means comprises a magnetic head which includes a magnetic sensor element and a supporting mount. The supporting mount is disposed opposite the magnetic sensor element and is in contact with the magnetic sensor element. The supporting mount and magnetic sensor element together forming means for surrounding the line-shaped magnetic recording medium and for transversely and slidably receiving the line-shaped magnetic recording medium between the supporting mount and the magnetic sensor element.

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patent: 4969760 (1990-11-01), Lemanna et al.
patent: 5024542 (1991-06-01), Tanaka
patent: 5075609 (1991-12-01), Ito et al.

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