[mark-r]

I'm not sure the original MX-80 had square dots. Since they made this to be pixel accurate, the aspect ratio might be off because the MX-80 was off.

The key test is not how it looks on screen, but how it looks printed.

[wiredfool]

My recollection is that the dots were round on my dot matrix. But it also used a typewriter ribbon, so there was a bit of texture from that.

[mark-r]

Good point, the dots were produced by pins that were round. What I meant to say was that the spacing might have been different in the two directions.

[wiredfool]

Yes, I’m sure they would be. Especially since the same font would have been used for normal width (10 characters per inch) and compressed (17 cpi).