Simplify the following text for a Grade 9 native English-speaking person.
Original: Pointillism is analogous to the four-color CMYK printing process used by some color printers and large presses that place dots of Cyan ( blue ) , Magenta ( red ) , Yellow , and Key ( black ) .
Simplified: Many color printers and large printing presses use four colors to print in tiny dots of Cyan ( blue ) , Magenta ( red ) , Yellow , and Key ( black ) .