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Weird problem with 82240B printer
05-21-2020, 12:31 PM
Post: #1
Weird problem with 82240B printer
One of my 82240B printers is displaying a weird problem. When connected to a 28S it works normally but when connected to a Pioneer such as 42S or 17BII it just prints parts of the information, misaligned data or random characters.

You can check the pictures below showing both printers and the results. I positioned the calculators so that both printers were receiving the same information at the same time.

Is this a known issue? What could be the cause?


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10B 11C 12C 12CP 15C 17BII 18C 19BII 21 25 27S 28S 32E 32S 32SII 33C 33S 34S 35S 38C 39gs 39GII 40gs 41C 41CX 42S 45 48G 48G+ 49G 49G+ 50 67 71B 97
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05-21-2020, 04:36 PM
Post: #2
RE: Weird problem with 82240B printer
I had a very similar problem with my 27S and 82240B. It would print fine with the 82240A, and all my other calculators work with the 82240B.
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05-21-2020, 04:47 PM
Post: #3
RE: Weird problem with 82240B printer
(05-21-2020 12:31 PM)Moggul Wrote:  Is this a known issue? What could be the cause?

Don't think it's a known issue, but perhaps others will know better.

My guess would be that the "bad" combination of devices may be on opposite ends of the tolerance ranges for the IR timing. I'm wondering if changing the batteries in one or both of the devices would make a difference. You could also try an external power supply for the printer as well.

Just a thought!
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05-21-2020, 05:01 PM
Post: #4
RE: Weird problem with 82240B printer
(05-21-2020 04:36 PM)Dave Britten Wrote:  I had a very similar problem with my 27S and 82240B. It would print fine with the 82240A, and all my other calculators work with the 82240B.

Interestingly enough the 27S works as well a couple of my 42S and the 17BII+. Not working are a 42S and all of the 17BII (not +).

Batteries are rated as 4/5 so I don't think that is an issue.


10B 11C 12C 12CP 15C 17BII 18C 19BII 21 25 27S 28S 32E 32S 32SII 33C 33S 34S 35S 38C 39gs 39GII 40gs 41C 41CX 42S 45 48G 48G+ 49G 49G+ 50 67 71B 97
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05-21-2020, 05:41 PM
Post: #5
RE: Weird problem with 82240B printer
(05-21-2020 05:01 PM)Moggul Wrote:  
(05-21-2020 04:36 PM)Dave Britten Wrote:  I had a very similar problem with my 27S and 82240B. It would print fine with the 82240A, and all my other calculators work with the 82240B.

Interestingly enough the 27S works as well a couple of my 42S and the 17BII+. Not working are a 42S and all of the 17BII (not +).

Batteries are rated as 4/5 so I don't think that is an issue.

I guess you've already tried fiddling with the DELAY (on 42S) or PRNT mode setting (17BII and 27S)?

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05-21-2020, 07:14 PM
Post: #6
RE: Weird problem with 82240B printer
Sounds like you ran the self test already, so...

Try raising the DELAY parameter to something high (like 5) and see what happens.

If that fixes it, you can then reduce it to where you still get reliable printing on that printer. (If it doesn't help, then at least you've ruled out some issues). Could be a tolerance stack up as suggested by DavidM.

Also try varying (e.g. increasing) the distance and see if that helps and perhaps try it out of line of sight to any florescent lights, monitors, etc that may be producing optical interference that one printer may me more susceptible to (long shot, I'll grant you).
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05-21-2020, 08:59 PM
Post: #7
RE: Weird problem with 82240B printer
(05-21-2020 07:14 PM)BobVA Wrote:  Also try varying (e.g. increasing) the distance and see if that helps ...

Amazingly enough, increasing the distance from 2-3 cm (1 in) to 10 cm (4 in) did the trick and now the printer works flawlessly!!!

I do not know what the causes may be but now I have a fully functional unit. Thanks Bob!!!


10B 11C 12C 12CP 15C 17BII 18C 19BII 21 25 27S 28S 32E 32S 32SII 33C 33S 34S 35S 38C 39gs 39GII 40gs 41C 41CX 42S 45 48G 48G+ 49G 49G+ 50 67 71B 97
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05-21-2020, 09:14 PM
Post: #8
RE: Weird problem with 82240B printer
Transmitter a little on the hot side + a receiver a little on the sensitive side. It was probably overloading the receiver. As DavidM noted, tolerance stack up.

Glad you fixed it!
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