I actually do have an HP all-in-one.
I'm doing these because I am helping a guy in a time sensitive PCM issue and he needs them before he can buy the book, which is always available on ebay for less than $15. I'm not doing any more scanning than needed for that particular thread. In fact, I'm a little concerned about copyright on this and I may well take this post back down after the guy fixes his issue.
These images are not meant to replace the book, in fact, they are a poor replacement because you have to go back and forth in the book to really get the bigger picture. Buying the book is very much the way to go.
That said, I am creating new schematics, my own work, that condenses the page flipping into a comprehensive picture of the system, such as this:
I would do a similar ones for the charging system, gauges, ignition, etc...
I'm doing these in my spare time, which is slim this time of year where I live. There are not a lot of nice summer months in Northern Minnesota, and outdoor stuff comes first. I am also building a robotic arm and working on my amateur radio stuff, so I don't know how far or soon I will get with this. But there is definitely a need.
That said, I repeat... buy the book. It is part of a 3 volume set that covers everything down to part numbers for every version of this vehicle, down to the part number in many cases. I have seen the set on ebay for less than $40. It is well worth it, just in parts you won't buy guessing at the problem.