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HP Inkjet Supplies - Streaked bars on the self-test page

Problem

You printed a self-test page and found streaks in one or more of the bars.

Step 1: Run the clean print cartridges utility

  1. Open the Printer Toolbox. There are two ways to do this:
    • Open HP Solution Center, select the Settings menu, then the Print Settings submenu, and finally the Printer Toolbox.
    • If the HP Solution Center method does not work, open Printers and Faxes in the Windows Control Panel, then right-click your printer icon and choose Properties. Click Printing Preferences. Click the Services tab, then the Service This Device icon.
  2. The Printer Toolbox opens. On the Device Services tab, click Clean the Print Cartridges, then follow the on-screen instructions. Up to three levels of cleaning are available. Discard or recycle the page that prints.

Step 2: Clean the contacts

  1. Gather the following items to clean the ink cartridge and carriage:
    • Clean distilled water. Use bottled or filtered water if distilled water is not available. Tap water can contain contaminants that damage the ink cartridge.
    • Clean cotton swabs or any soft, lint-free material that will not stick to the ink cartridges (coffee filters work well).
    • Sheets of paper or a paper towel to rest the ink cartridge on during cleaning.
  2. Open the ink cartridge access door and wait until the carriage is idle and silent.
  3. Disconnect the power cord from the back of the printer.
  4. Remove the ink cartridge and place it on a piece of paper with the nozzle plate facing up.
    note:
    Do not leave the ink cartridges outside of the printer for more than 30 minutes. If the ink cartridge is outside of the printer for too long, the ink can dry and clog the nozzles.
  5. Dip a clean foam-rubber swab or lint-free cloth into distilled water, and then squeeze any excess water from it.
  6. Clean only the copper-colored contacts
    1. Copper-colored contacts
    2. Ink nozzles (do not clean)
  7. Repeat these steps for the other ink cartridge.
  8. Lightly moisten another cotton swab with distilled water, and then squeeze any excess water from the swab.
  9. Use the swab to clean the electrical contacts in the carriage, located inside the printer on the carriage slots.
    Image: The electrical contacts in the ink cartridge slots
  10. Wait 10 minutes to allow the ink cartridge and carriage electrical contacts to dry.
  11. Reinstall the ink cartridges.
  12. Close the ink cartridge access door.
  13. Reconnect the power cord to the back of the printer.
  14. Press the Power button to turn on the printer.
  15. Try to print a page.
  16. If you are still unable to print, repeat these steps to clean and reseat the ink cartridges. Multiple cleanings might be necessary to restore printing.
Figure : Print carriage
Figure : Clean in the circled area only

Step 3: Replace the problem cartridge

If a cartridge replacement was not tried previously to solve this problem, replace the problem cartridge now. Go to Ink Cartridge and Printhead Limited Warrantyto see if the cartridge is covered under warranty.

How to prevent missing lines or streaks

Missing lines and streaks occur when the cartridge nozzles dry out, or when a cartridge is running low on ink.
  • Do not remove the protective tape from a new print cartridge until just before you install it. Once you remove the tape, do not reapply it.
  • After you have removed the protective tape, do not allow anything to touch the nozzles.
  • Print at least once a month to keep the print cartridges in good working order.
  • Always turn the printer off by pressing the button on the printer control panel, rather than by unplugging the printer. Turning the printer off properly allows it to protect the cartridges.
  • If you are removing a cartridge from the printer temporarily (for instance, removing the black cartridge in order to install the photo cartridge), put it in a cartridge protector.
  • If you do not have a cartridge protector and need to remove a cartridge temporarily, put it in an airtight plastic tub. Make sure nothing touches the nozzles. Do not use a plastic bag. If you intend to store print cartridges in a tub for a long period of time, place color cartridges with the nozzles down, and black cartridges with the nozzles up.

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Country/Region: Flag Thailand

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