I printed a flyer with a pure black text box and it came out looking like a gray puddle
So I was making this flyer for a local garage sale we're having this Saturday and I wanted the header to pop so I set it to 0,0,0,100 in CMYK. Big mistake. When the prints came back from the shop the black was all patchy and dull. My buddy who runs a sign shop told me I should have used a rich black like 60,40,40,100 to get a true deep black. He showed me his test prints side by side and the difference was night and day. Now I double check my blacks every time before I send stuff to print. Anyone else learn this the hard way?