Canon PG 540 Black Ink Cartridge

Black - A colour which does not emit any colour of the spectrum. Black absorbs all frequencies of the spectrum.

Canon - A Japanese company specialising in imaging and optical products

Ink - A liquid containing pigments and dyes

Convenience - A way of being able to carry out a task with little effort

Head - The upper part of a body typically separated by the neck.

Print - A mechanical process of putting text onto paper. It can also relate to a pattern on an item.

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