Crossword puzzle clue "part of some printers"

a source of high-intensity optical, infrared, or ultraviolet radiation produced as a result of stimulated emission maintained within a solid, liquid, or gaseous medium

CANON, a member of an order of clergy living in a clergy-house or within the precincts of a cathedral etc. in accordance with the canons of the church

(US) to paint, also COLOUR

being, existence; an entity