HP Deskjet 990cxi Printer - Manual (Page 46)

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Print Cartridges: Storing Print Cartridges
Storing Print Cartridges
To maintain excellent print quality from your print cartridges:
• Keep all print cartridges in their sealed packages, at room
temperature (60-78° F or 15.6-26.6° C), until you are ready to
use them.
• Once installed, leave the print cartridges in their cradle at all
times to keep them from drying out or becoming clogged.
• Store unsealed print cartridges in an airtight plastic container.
• Do not unplug the printer until printing is complete and the print
cartridge cradles have returned to their home position on the
right side of the printer. The print cartridges will dry out if not
stored in their home position.
• Do not attempt to reattach the vinyl tape previously removed
from the print cartridges. Reattaching the tape will damage the
cartridges.
Only use the Power Button on the front of the
printer to turn the printer on and off. Using a power
strip, surge protector, or a wall-mounted outlet switch to turn the
printer on and off may cause premature failure.
Cleaning Print Cartridges
When Do You Need to Clean?
Clean the print cartridges if your printed page is missing lines or
dots, or if it contains ink streaks.
If You See Missing Lines or Dots
Clean the print cartridges from the HP DeskJet
Toolbox by doing the following:
1 Open the HP DeskJet Toolbox . For more
information, see “HP DeskJet Toolbox” on page 13.
2 Click Clean the Print Cartridges and follow the on-screen
directions.
Note: Unnecessary cleaning wastes ink and shortens the life of the
print cartridge.
Warning