Ink tank vs cartridge vs laser
Refillable tanks, replaceable cartridges, or toner powder.
Why it matters
Ink tank ≈ 20–30 paise/page; cartridge ≈ ₹3–8 (≈$0.04–$0.10)/page; mono laser ≈ 50 paise/page and never dries up.
What to check
Cartridge printers are cheap upfront and brutal later.