Hello,
so far understood: the DM41X print on paper of HP-82240A/B via the IR.
Is there any possibility to print into any printer-Emulator on a PC?
= connecting an IR-device to a PC (where to find?); then the transfered data (via the IR-device connected via USB to the PC?) would be stored in a readable text form anywhere (in a file or an emulator).
Printing into an HP-82240A/B printer emulator; HowTo?
Re: Printing into an HP-82240A/B printer emulator; HowTo?
Yes, Meindert Kuipers created a clever modern IR receiver which will let you capture IR "Printed" output on a PC.
Here's the article: https://www.hpmuseum.org/forum/thread-1 ... #pid130564
Here's the article: https://www.hpmuseum.org/forum/thread-1 ... #pid130564
--bob p
DM42: β00071 & 00282, DM41X: β00071 & 00656, DM10L: 071/100
DM42: β00071 & 00282, DM41X: β00071 & 00656, DM10L: 071/100
Re: Printing into an HP-82240A/B printer emulator; HowTo?
This is Martin Hepperle's HP RedEye receiver with Christoph Gießelink's HP82240B simulator.
Greetings,
Massimo
ajcaton
-+×÷ left is right and right is wrong Casted in gold
Massimo
ajcaton
-+×÷ left is right and right is wrong Casted in gold
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- Location: Netherlands
Re: Printing into an HP-82240A/B printer emulator; HowTo?
My implementation is for 99% based on Martin Hepperle's project mentioned elsewhere in this thread, and he should have all credits for the RedEye receiver.rprosperi wrote: ↑Mon Dec 05, 2022 7:07 pmYes, Meindert Kuipers created a clever modern IR receiver which will let you capture IR "Printed" output on a PC.
Here's the article: https://www.hpmuseum.org/forum/thread-1 ... #pid130564
Regards from NL,
Meindert Kuipers DM41X #48
Meindert Kuipers DM41X #48
Re: Printing into an HP-82240A/B printer emulator; HowTo?
Indeed, credit should also have been given to Martin as well in my post above, thanks for correcting that Meindert!MeinKuipers wrote: ↑Tue Dec 20, 2022 5:26 pm
My implementation is for 99% based on Martin Hepperle's project mentioned elsewhere in this thread, and he should have all credits for the RedEye receiver.
--bob p
DM42: β00071 & 00282, DM41X: β00071 & 00656, DM10L: 071/100
DM42: β00071 & 00282, DM41X: β00071 & 00656, DM10L: 071/100
Re: Printing into an HP-82240A/B printer emulator; HowTo?
Hi,
I just made one myself, following Martin and Meinderts description and it works like a charm - big thanks!
But, I noticed some problems with the DM41X. When printing eg a program (PRP), then I saw two strange behaviors (since the communication is one-way, this is present in the calculator and not the printer emulator).
Firstly (most irritating) is that the calculator locks, ie. I can't stop the printing easily with R/S. It is as if the calculator does the printing in the background and forgets to scan the keyboard. I can stop by keeping the button pressed for a longer time.
The second observation is that it start by printing ~7 lines of the program directly, but after that it prints about one line per 2 seconds (~½Hz). And I see that the IR is received in very short bursts and then are idle for a long time.
I then found the setting in the DM41X that controls the line-delay when printing (default is 1.8 sec).
Setting this to 0.2 seconds worked fine, the printing of a program goes quite quickly, but most of all, R/S works quite well too.
So, probably the DM41X doesn't look at the keyboard while executing the delay, and now that I understand the cause it is not much of a problem
Thanks again Martin and Meindert for the description of the IR-receiver!
Btw, after mounting my Arduino Micro inside the receiver (with the existing led connected so that it was turned on while receiving data), I noticed that the led was red while idle and green when receiving data. I couldn't understand this, because the led is not a dual but only a single led - but then realized that I had mounted the Micro so that the power led (red) was shining through the led - making it look like it was a dual led!
I just made one myself, following Martin and Meinderts description and it works like a charm - big thanks!
But, I noticed some problems with the DM41X. When printing eg a program (PRP), then I saw two strange behaviors (since the communication is one-way, this is present in the calculator and not the printer emulator).
Firstly (most irritating) is that the calculator locks, ie. I can't stop the printing easily with R/S. It is as if the calculator does the printing in the background and forgets to scan the keyboard. I can stop by keeping the button pressed for a longer time.
The second observation is that it start by printing ~7 lines of the program directly, but after that it prints about one line per 2 seconds (~½Hz). And I see that the IR is received in very short bursts and then are idle for a long time.
I then found the setting in the DM41X that controls the line-delay when printing (default is 1.8 sec).
Setting this to 0.2 seconds worked fine, the printing of a program goes quite quickly, but most of all, R/S works quite well too.
So, probably the DM41X doesn't look at the keyboard while executing the delay, and now that I understand the cause it is not much of a problem
Thanks again Martin and Meindert for the description of the IR-receiver!
Btw, after mounting my Arduino Micro inside the receiver (with the existing led connected so that it was turned on while receiving data), I noticed that the led was red while idle and green when receiving data. I couldn't understand this, because the led is not a dual but only a single led - but then realized that I had mounted the Micro so that the power led (red) was shining through the led - making it look like it was a dual led!
[35/45/55/65/67/97/21/25/29C/31E/33E/38E/41C|CV|CX/71B/10C/11C/15C/16C/32SII/42S/28S/48GX/49G/35S/DM41X(#00456)]
(7397)[134]
(7397)[134]
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Re: Printing into an HP-82240A/B printer emulator; HowTo?
Alas, only if someone would build it for me, I'd buy one. My mechanical skill is almost zero, though. I can solder and assemble through-hole kits but that's it.rprosperi wrote: ↑Mon Dec 05, 2022 7:07 pmYes, Meindert Kuipers created a clever modern IR receiver which will let you capture IR "Printed" output on a PC.
Here's the article: https://www.hpmuseum.org/forum/thread-1 ... #pid130564
Tom L
Some people call me inept but I'm as ept as anybody!
DM10L SN: 059/100
DM41X SN: 00023 (Beta)
DM41X SN: 00506 (Shipping)
DM42 SN: 00025 (Beta)
DM42 SN: 00221 (Shipping)
WP43 SN: 00025 (Prototype)
Some people call me inept but I'm as ept as anybody!
DM10L SN: 059/100
DM41X SN: 00023 (Beta)
DM41X SN: 00506 (Shipping)
DM42 SN: 00025 (Beta)
DM42 SN: 00221 (Shipping)
WP43 SN: 00025 (Prototype)
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- Posts: 58
- Joined: Mon Jan 13, 2020 4:49 pm
- Location: Netherlands
Re: Printing into an HP-82240A/B printer emulator; HowTo?
That is a nice feature! In my unit I have programmed a heartbeat for the green LED when idleecsfang wrote: ↑Sat Jan 14, 2023 2:26 pmBtw, after mounting my Arduino Micro inside the receiver (with the existing led connected so that it was turned on while receiving data), I noticed that the led was red while idle and green when receiving data. I couldn't understand this, because the led is not a dual but only a single led - but then realized that I had mounted the Micro so that the power led (red) was shining through the led - making it look like it was a dual led!
Regards from NL,
Meindert Kuipers DM41X #48
Meindert Kuipers DM41X #48