I've had a tried and true 2840 for several years and have enough toner, extra fuser, cartridges (which aren't cheap) to last through a holocaust. What I don't have is the ability anymore to scan or use the device because I upgraded my iMac to Mavericks. Now it won't read, work, etc.
I don't think the problem is unique to me. I'm looking for a solution, ie HP themselves to tell me if / us if you're going to be releasing something or I can just quit trying and taking up valuable real estate maintaing this ridiculously large device or if I should find 3 strong friends and get the thing moved out of my house and attempt to sell all the supplies on eBay.