HP Color Inkjet cp1160 Printer series - Manual (Page 97)

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expired ink cartridges
To protect against deteriorated print quality and damage to your printer, the
printer monitors the age of the ink cartridges. When a cartridge has reached
its expiration date, the cartridge stops working and the printer ceases to
operate until the cartridge is replaced. If installed prior to the “Must Install
Before” date (see the back of the ink cartridge packaging) hp no. 14 ink
cartridges will expire 18 months after installed in the printer. If installed after
the “Must Install Before” date, the cartridges will expire in less than 18
months. The expiration period is the maximum time in which an ink cartridge
can be used, it is not a warranty period.
It is recommended that you do not stockpile ink cartridges.
To see the expiration date for an installed ink cartridge, print a diagnostic
page .
Caution! To avoid damaging the printer, remove an ink cartridge or
a printhead only when a replacement is available. If an ink cartridge
or a printhead is removed without being replaced:
• Close the print carriage and the printer doors.
• Replace the ink cartridge or printhead within 24 hours.
• Never remove an ink cartridge
and a printhead at the same time.