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Browse Prior Art Database

Cursor Draw for an Electronic Typewriter

IP.com Disclosure Number: IPCOM000102165D
Original Publication Date: 1990-Nov-01
Included in the Prior Art Database: 2005-Mar-17
Document File: 2 page(s) / 49K

Publishing Venue

IBM

Related People

Schuller, WM: AUTHOR [+2]

Abstract

Disclosed is an algorithm that will print fully formed box characters on an electronic typewriter. Fig. 1 shows the relationship of the intersect point of box characters to the character box. Fig. 2 shows the placement of the underscore, vertical bar and the exclamation point relative to the character box.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 66% of the total text.

Cursor Draw for an Electronic Typewriter

       Disclosed is an algorithm that will print fully formed
box characters on an electronic typewriter.  Fig. 1 shows the
relationship of the intersect point of box characters to the
character box.  Fig. 2 shows the placement of the underscore,
vertical bar and the exclamation point relative to the character box.

      The box character is formed with the underscore and the
vertical bar or the exclamation point.  With this new function, a new
print wheel is required with a solid vertical bar.  If there is a box
character to be printed, and there is a typewriter print wheel
installed, the software will prompt the operator to install a draw
print wheel.  The prompt message will ask the operator to confirm
that a draw print wheel has been installed.  If a draw print wheel
has been installed, then the vertical portion of the box character
will be printed using the vertical bar.  If a draw print wheel has
not been installed, then the vertical portion of the box character
will be printed using the exclamation point.

      To maintain the integrity of the intersect point, the hammer is
moved one half of the escapement of the underscore character to the
right or left depending on which side of the vertical portion the
horizontal portion needs to be placed.  After the horizontal portion
has been printed, the hammer returns to the starting position.  Now
the vertical portion is printed using the vertical bar of the dr...