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HP Customer Support - Knowledge Base

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HP Designjet 4020 and 4520 Printer Series - Maintain the ink cartridges

During the normal lifetime of a cartridge, no specific maintenance is required. However, in order to maintain the best print quality, you should replace a cartridge when it has reached its expiration date, which is the date marked on the cartridge plus 6 months.

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Country/Region: Flag United Kingdom

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