Unprintable character

Updated: 04/26/2017 by Computer Hope
Unprintable character

An unprintable character is one that cannot be printed or displayed by a program because it is not supported. Unprintable characters are commonly displayed as an unrecognizable character such as a small block, question mark, underscore, or blank space. For example, in the image shown to the right, the second link has a single quote that is not supported by the browser and instead shows up as a black diamond with a white question mark.

Character, Garbage, Keyboard terms