41 Programs for 7470 Plotter - Why so few?

[rprosperi]

(08-11-2016 02:30 PM)Sylvain Cote Wrote:  I have recreated the US paper selection error but with a sniffer before and after the plotter to capture the entire communication exchange.
Doing this setup it become clear that the mysterious 0x60 was actually the plotter accessory id and was not part of the error message.
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[snip]

Nice work. Probably the best line-by-line analysis of HP-IL traffic I've seen, at least in many, many years. A nice little tutorial on how HP-IL works at the plumbing level.

Thanks for sharing that.