Re: Two can convert in one better
To answer that question: Yes, a LOT of redundant products. Xerox is a printer company, and has models in almost every arena except the home user. HP does as well, but also targets home users.
HP also still has their laptop and desktop divisions. (They spun off server and datacenter stuff to HPE)
I think it would be a very bad idea for the two printing companies to merge regardless of what certain 'activist' investors (iCahn) might state.