MHaensel Posted November 24, 2020 Share Posted November 24, 2020 (edited) I don't have a retro TRS-80 printer yet, but one is in my future, either a daisy wheel or a dot matrix (Line Printer or DMP). I'd like to connect it to my 2020-era laptop. It would be fun to output from a modern computer to one of these heavy-duty beasts. A USB->Centronics adapter gets me most of the way there. Do I need a card edge adapter or something for early printers, or were they standard Centronics ports? Edited November 24, 2020 by MHaensel Added "it would be fun" Quote Link to comment Share on other sites More sharing options...
Michael Kline Posted November 25, 2020 Share Posted November 25, 2020 I believe that they all used Centronic based connectors. Card edge would usually be for the computer. Like the TRS-80 Model I/III/4 for example. Some Dot Matrix Printers and Daisy Wheel printers used both Parallel/Serial connections. Okidata still sells DMP printers today. Although, you will have to look at their website and see how they connect to modern PCs. I have a DMP-130A printer for my CoCo. However, I have never attempted to connect it to my Windows based laptop. If you have a printer in mind, you probably can find the manual to it at https://archive.org Quote Link to comment Share on other sites More sharing options...
jhd Posted November 26, 2020 Share Posted November 26, 2020 Would the absence of driver software be an issue? If memory serves, there is a "generic" printer driver under Windows, but that may just support basic text printing -- no fonts, bold, underlining, or other features of the printer. Quote Link to comment Share on other sites More sharing options...
R.Cade Posted November 26, 2020 Share Posted November 26, 2020 You just need to find DOS software to use it. Nothing much could be done from Windows. I mean, it will print the text from Notepad or something, but nothing much beyond that. Quote Link to comment Share on other sites More sharing options...
Turbo-Torch Posted November 26, 2020 Share Posted November 26, 2020 Windows XP still had drivers that supported my Star NX 1000 which was made in the 80s. It printed out everything from tax forms to web pages nicely. I bet it's doable if you find a printer that has Epson or IBM compatible modes. Most from mid 80s supported both and were selectable with dip switches. Quote Link to comment Share on other sites More sharing options...
Omega-TI Posted November 26, 2020 Share Posted November 26, 2020 3 hours ago, jhd said: Would the absence of driver software be an issue? If memory serves, there is a "generic" printer driver under Windows, but that may just support basic text printing -- no fonts, bold, underlining, or other features of the printer. Yes, this could be a major issue. The OEM's of many of the TRS-80 line of printers were not all the same if memory serves. You may have to try many different printer drivers to even find some basic compatibility. Good luck! Quote Link to comment Share on other sites More sharing options...
Bruce Tomlin Posted November 29, 2020 Share Posted November 29, 2020 If I recall correctly, IBM made some mistake when implementing their first Centronics interface, so there is a slight difference with the "original" spec, which became the only way it was done afterward. So watch out for that. Quote Link to comment Share on other sites More sharing options...
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