HP OfficeJet Pro 8020 User Guide - Page 117

Some color ink is used even when printing with black cartridge only, HP Ink, Select Country

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Some color ink is used even when printing with black cartridge only Ink is used in a number of ways throughout the inkjet printing process. In general, ink in a cartridge is used for printing documents, photographs and other such materials. Some ink, however, must be used to maintain the health of the printhead; some ink is residual; and some ink evaporates. For more information on ink usage, visit www.hp.com/go/learnaboutsupplies and click HP Ink. (You might need to select your country/region using the Select Country button on the page.) ENWW Some color ink is used even when printing with black cartridge only 111

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Some color ink is used even when printing with black cartridge
only
Ink is used in a number of ways throughout the inkjet printing process. In general, ink in a cartridge is used for
printing documents, photographs and other such materials. Some ink, however, must be used to maintain the
health of the printhead; some ink is residual; and some ink evaporates. For more information on ink usage,
visit
www.hp.com/
go/learnaboutsupplies
and click
HP Ink
. (You might need to select your country/region
using the
Select Country
button on the page.)
ENWW
Some color ink is used even when printing with black cartridge only
111