HP Photosmart 7450 Photo Printer - Manual (Page 30)

Cleaning the print cartridge contacts
If the printer is used in a dusty environment, debris may accumulate on the print
cartridge contacts and cause printing problems.
To clean the print cartridge copper-colored contacts:
1.
Gather the following items to clean the print cartridge contacts:
–
Distilled water (tap water may contain contaminants that can damage the
print cartridge)
– Cotton swabs or other soft, lint-free material that will not stick to the print
cartridge
2. Open the top cover of the printer.
3. Remove the print cartridges and place them on a piece of paper with the ink
nozzle plate facing up, being careful not to touch the copper-colored contacts or
the ink nozzle plate with your fingers.
Caution Do not leave the print cartridges outside the printer for more
than 30 minutes. Ink nozzles exposed to the air longer than this may dry
out and cause printing problems.
4. Lightly moisten a cotton swab with distilled water and squeeze any excess water
from the swab.
5. Gently wipe the print cartridge contacts with the cotton swab.
Caution Do not touch the print cartridge ink nozzle. Touching the ink
nozzle will result in clogs, ink failure, and bad electrical connections.
6. Repeat steps 4 - 5 until no ink residue or dust appears on a clean swab.
7. Insert the print cartridges in the printer, then close the top cover.
Aligning the print cartridges
When you first install a print cartridge in the printer, you must use the software that
came with the printer to align the print cartridges. You should also align the print
cartridges if the colors in your printed pages are misaligned. For more information,
see
Aligning the cartridges .
Maintaining the quality of photo paper
For best results with photo paper, follow the guidelines in this section.
Storing photo paper
● Store the photo paper in its original packaging or in the resealable plastic bag that
came with the printer.
● Store the packaged photo paper on a flat, cool, and dry surface.
● Return unused photo paper to the plastic bag. Paper left in the printer or exposed
to the elements may curl.
Chapter 6
28 HP Photosmart 7400 series