HP Color Inkjet cp1160 Printer series - Manual (Page 96)

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maintaining ink cartridges
The following tips will help maintain HP ink cartridges and ensure consistent
print quality:
• Keep all ink cartridges in the original sealed packages until they are
needed. Ink cartridges should be stored at room temperature
(60–78 degrees F or 15.6–26.6 degrees C).
• If the protective tape has been removed from the ink cartridge, do not
attempt to reattach it. Reattaching the tape may damage the ink
cartridge. Place the cartridge in an airtight, plastic container.
• Once ink cartridges are installed in the print carriage, do not remove
them.
Caution! Always use the Power button to turn off the printer. Do not
unplug the printer until printing is complete, the print carriage returns to
the home position on the right side of the printer, and the printer has
been turned off. Ink cartridges dry out if not stored in the home position.