Rose needs an inexpensive black and white wireless printer. Leo says she can get a black and white wireless printer for $50, but the cost of consumables (ink) is the true cost of the printer. Ink Jet printers are generally more expensive than laser printers on a per page basis. But Epson has lowered the cost of ink so that it costs about 1.3 cents per page. Another option is the Canon Pixma, costs 4.3 cents per page, and 2.8 cents for color. Epson also has a line of printers that come with the ink in the box. They have a long lasting line that has two years worth of ink included. Leo likes those, even if they're more expensive up front.
TheWireCutter.com mentions this Brother Lazer Brother HL-L2340DW printer, which is under $100 and prints about .02 per page.
(Disclaimer: Epson is a sponsor).