Hi MrEarl,
When I was in a similar situation, I came up with a solution which may seem a little convoluted, but which I find works well in practice. It does require having space for two printers though. My soution is:
1. I bought a laser printer for black and white printing. I have a HP LaserJet P1005. The model is out of date now, but HP have similar new ones. I can get a compatible toner cartridge (not HP-branded) on amazon for about 15 euro which works with the printer. If you were to go this route, you should check that such toner cartridges are available for the printer you choose before you purchase the printer. One toner cartridge will print over 1,000 pages usually, and so if you only print 50 pages a month one cartridge should keep you going for over 18 months.
2. For scanning I still use my old inkjet printer, but I just use this to scan the document in so I can see it on my computer screen. I then print the scanned document out using my laser printer. This suits me because I only scan maybe twice a month. Because I never print with the inkjet anymore, I have no ink it in, and so have no costs for inkjet ink.
I hope this is some use to you, although I know it is not recommending one specific printer and scanner "all in one". Note that this solution does not offer colour printing.
aamusername