By Topic

A high speed magnetic printer

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

5 Author(s)
A. Berkowitz ; General Electric Corporate Research and Development, Schenectady, New York ; J. Lahut ; W. Meiklejohn ; R. Skoda
more authors

The potential virtues of magnetic printers have long been appreciated [1]. They include quiet, non-impact operation, high speed, the use of plain paper, and minimal sensitivity to humidity conditions. We report on a magnetic printer that has been extensively tested and shown to demonstrate these advantages. The tests have concentrated on the system's performance as a high speed printer of alphanumeric characters selected by a coded digital input. However, the system can also function as a plotter of any figure that can be composed from arrays of dots. The principal features are the following: Any format of alphanumeric characters may be printed at an appropriate line density. The rows of characters may be up to 14 inches long. Paper speed is normally 16.7 inches/sec. Thus, at the common density of 6 lines/inch, the printer operates at 6000 lines/minute. The stationary printing heads can produce a 14 inch long row of dots across the width of the paper. Dot density is 120 dots/inch in this transverse direction. In the longitudinal direction of paper travel, the dot density is generally maintained at 96 dots/inch. The 1672 printing locations on the magnetic recording head are selected by a coincidnt current scheme that utilizes novel integrated drive circuitry. The head "writes" the characters as magnetic latent images composed of dots on a 16 inch wide continuous loop of magnetic tape. The magnetic image is "developed" by exposing the tape to a dry magnetic ink which is attracted to the written dots. The ink images are transferred to paper and sealed by heated rollers.

Published in:

IEEE Transactions on Magnetics  (Volume:15 ,  Issue: 6 )