I have used the suggested ColorLoc paper in my HP laser printer. It was great. Now Staples carries two types of Tru Red the one with Red edge is best to black print the Blue edge is for black and color. The Red edge is nearly half the cost of the Blue (color printing added). Recently went into my local Staples for more paper (have a wife who writes histories of family lots of paper I am a addicted to collecting info and printing too much of it but the copies are great to take to luncheons etc.. So same company now I am aware of two types and saving $.