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Host Print (EBCDIC) Missing Characters On a Printer Using The Period to Print All Points Addressable

IP.com Disclosure Number: IPCOM000100370D
Original Publication Date: 1990-Apr-01
Included in the Prior Art Database: 2005-Mar-15
Document File: 2 page(s) / 47K

Publishing Venue

IBM

Related People

Anderson, WG: AUTHOR

Abstract

This technique supplies the host characters (EBCDIC) that are missing on a PC (personal computer) printer using the period to print APA (all points addressable) on the wheel printers. Almost any character or symbol can be generated using this method.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 70% of the total text.

Host Print (EBCDIC) Missing Characters On a Printer Using The Period to Print All Points Addressable

       This technique supplies the host characters (EBCDIC) that
are missing on a PC (personal computer) printer using the period to
print APA (all points addressable) on the wheel printers.  Almost any
character or symbol can be generated using this method.

      This is the host print portion of the IBM Personal
Communication/3270 program.  There are 192 EBCDIC characters on a
host code page.  Not all of these characters can be printed directly
on a wheel printer.  The normal wheel printer has a 96-character
print wheel.  The character is given a variable name.  The name is
assigned to an escape sequence that will form the character by using
the period to form the character as APA-type printing on the wheel
printers.

      The example below is for the paragraph symbol for the IBM 5216
Wheelprinter.
   1. Set the horizontal motion index to 2/120 inch  (1B 3E 02).
     2. Set the line spacing to 1/48 inch (1B 41 01 1B 32).
     3. Space twice to leave room after last character (20 20).
     4. Print the period (2E).
     5. Backspace (08).
     6. Reverse index (1B 5D).
     7. Print the period (2E).
     8. Continue moving the paper and print head, then
        printing the
        period, until the whole character is printed.
     9. Return the line spacing to 6 lines per inch and the
        char...