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Author Topic: IBM 3852 / Canon PJ-1080A  (Read 312 times)

Lisa2

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Re: IBM 3852 / Canon PJ-1080A
« Reply #15 on: September 09, 2021, 04:16:38 pm »

Does anyone here have an original DMP cable and would they be able to verify the pinout?

The pinout for this cable ( 590-0042-B) is correct.   See attached photos.  Also note that when I played with this in the past I did not connect pins 16 or 35 on the printer side ( I don't remember if this helped or not).  Maybe you can try this on your cable.

Rick

« Last Edit: September 09, 2021, 08:35:40 pm by Lisa2 »
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blusnowkitty

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Re: IBM 3852 / Canon PJ-1080A
« Reply #16 on: September 09, 2021, 09:53:46 pm »

Thanks Rick! I'll try rebuilding my DMP cable to see what happens. Interestingly there's still an error in the text on Apple's website - they omit Pin 14. I see in the printed document that Pin 14 on the Lisa is GND, and that gets tied to BSY on the Centronics side. Although strange is that Tom's adapter pinout leaves BSY floating and it still works for him, but he's also got a proper 1080A.

I think my next step here is going to be breadboarding up a bunch of LEDs in between the Lisa and the printer just to make sure data is flowing to the printer. I'm also wondering if the 1080A driver sends something that the 3852 doesn't like? On the other hand that shouldn't be the case. The Generic / Text Only driver in Windows does make it print.
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