Request for HP82143A (Helios) paper print

[Christoph Giesselink]

Meindert and I are working on a HP82143A printer simulation.

Somewhere last year I created the HP82143A printer font with the 5x7 pixel matrix for each character. As source I used the character page from the 82143A manual. But the book scans are quite worse or maybe the original manual isn't even better. So it would be best making a test print on a real HP82143A printer and taking a "high-res" photo of the paper print. I gone the same way with my HP82240B Printer simulation some years ago. Making a test print on a real printer and took a photo of the output. The photo was good enough to detect each pixel with it's position in the pixel matrix of each character.

The HP82143 has no test print showing all characters, so I wrote a small HP41 program printing the characters from 0-127 with 16 characters per line. This 16x8
character matrix helps to create virtual horizontal and vertical lines to locate each pixel corresponding to his neightbours.

The program (UTF8 text output):

Code:


          PRP "CHRSET"
        01◆LBL "CHRSET"
            02 0.12716
            03 STO 00
            04◆LBL 01
            05 RCL 00
            06 INT
            07 15.01
            08 RCL Y
            09 +
            10 1000
            11 /
            12 +
            13 STO 01
            14◆LBL 02
            15 RCL 01
            16 INT
            17 ACCHR
            18 ISG 01
            19 GTO 02
            20 ADV
            21 ISG 00
            22 GTO 01
            23 END

Does somebody own such a printer with a HP41 calculator and has the time and willing to make a test print with this program? It's important that the pixel of each character are visible to compare them with the printout.

Aattched a printout of the code above made with a beta version,

When somebody done it, it's best to put a short message in this thread that it's already dome and send me a PM over the forum if you don't have my eMail address.

TIA for your help,

Christoph

   

[Diego Diaz]

Hi Christoph,

Though I don't have a real 82143 with me, I remember I did some comparative test with the fonts published by Luiz C. Vieira back in 2004 and found they were a verbatim duplicate of the originals.

I may have skipped a pixel though... (but most likely not ;-)

You can find the TTF file(s) at TOS. Search for "fonts".

Hope you find this useful.

Best regards from Caribbean.

Diego.

[born2laser]

I can do it with my 82162A, if that works for you. Don't know if they are any different.

Juan

[BobVA]

Done! I'll send you a PM.

[floppy]

(01-12-2023 05:49 PM)Christoph Giesselink Wrote:  

Code:


          PRP "CHRSET"
        01◆LBL "CHRSET"
            02 0.12716
            03 STO 00
            04◆LBL 01
            05 RCL 00
            06 INT
            07 15.01
            08 RCL Y
            09 +
            10 1000
            11 /
            12 +
            13 STO 01
            14◆LBL 02
            15 RCL 01
            16 INT
            17 ACCHR
            18 ISG 01
            19 GTO 02
            20 ADV
            21 ISG 00
            22 GTO 01
            23 END

I see something different in V41&ILPER. See picture.
My fonts setup is not well working?

[Christoph Giesselink]

(01-13-2023 05:58 PM)floppy Wrote:  I see something different in V41&ILPER. See picture.
My fonts setup is not well working?

IlPer is an ASCII program supporting a Latin1 codepage with less than 200 printable characters.

The test program output was made with a special version of V41 and a beta version of the HP 82240B printer simulation program expanded by a 82143A simulation. The 82240B printer simulation program is a Unicode program using the Unicode character set and the 82143A simulation contains a translation table from the 82143A character set to unicode.

Last but not least, the forum software supports UTF8 coded characters, and so we were able so see the special characters in text mode.