HP 5480A, or, obscure HP instruments / was Re: More on manuals plus rescue

William Donzelli wdonzelli at gmail.com
Thu Aug 20 07:06:07 CDT 2015

> They reuse numbers for what I call "marketing numbers".   For example,
> with a LaserJet 8150dn, the "8150" is a "marketing number" and not the
> actual HP product number, which was C4267A.  As far as I know they've
> never actually reused a product number.

The same occurs with IBM type numbers and feature numbers. IBM
generally does a good job making the distinction, but resellers do


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