What Are The Small Coloured Squares At The Bottom Of Newspaper Pages?

4 August 2017, 11:31 | Updated: 4 August 2017, 11:37

Picture: LBC

In newspapers, what are the small coloured circles/squares at the bottom of the pages?

Mystery Hour Question

What is the purpose of the coloured squares at the bottom of newspaper pages?

Billy, Isle of Wight


Name: Simon, Littlehampton

Qualification: Prinitng expert

Answer: They are called registration marks and all colour printing is known as four colour printing. You have cyan, magenta, yellow and black and they are the colours that make up any printing.