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TRS-80 Screen Printer - Are There Schematics Out There?

@RingingResonance Can you share with me the pinout of the cable, in case you still have this somewhere documented. I am in the process of reverse engineering the schematics for the screen printer using your photos you’ve provided. I am about 70-80% there, but I am stuck at the cable pinout mapping.
 
I don't have a pinout of the cable, but I do have a schematic of the cable adapter. With this, you should be able to use the pinout of the TRS-80 to come up with a pinout for the printer.
 

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  • cableAdapter.pdf
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I don't have a pinout of the cable, but I do have a schematic of the cable adapter. With this, you should be able to use the pinout of the TRS-80 to come up with a pinout for the printer.
Perfect. Thank you! Do you remember what the jumper is used for?
 
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