> "The software used a special driver to get better than standard quality from the then most common 24 pin printers (laser printers where much expensive) by kind of double-printing, I forgot the details. It looked really good though."

In opening up a few ancient files to answer another question about formatting, I found some long forgotten notes on how to make my Epson LQ400 24 pin printer work at 360dpi rather 180dpi, which may have been the same for you: First you had to install it as a NEC 24-pin 360dpi printer rather than 180dpi printer. Then, because it used fonts of half the size, you needed to switch fonts. So I had two fonts disks, one with 180dpi installed fonts and one with 360dpi fonts, and used the ASSIGN.SYS file to switch between them. It also seems to have taken twice as long to print out at 360dpi, and used twice as much printer ribbon:-)

I remember some printers had a "draft" mode and a "fine" mode (and you could simulate the fine even on those that didn't by printing, and then carefully going back and printing again but off by a tiny, tiny bit vertically).