Uniwork 78A Black Toner Cartridges (2-Pack)-Compatible Toner Replacement for HP 78A CE278A Toner Cartridges Works with HP Laserjet Pro P1566, P1606 Series, HP Laserjet Pro MFP M1536 Series | CE278A is a Office Electronics option for everyday use, business supply needs, resale shelves, or household stocking. Review product size, pack count, and shipping details before checkout.