solution Contentsolution Content

HP OfficeJet Pro 7720, 7730, 7740 Wide Format printers - Color or black ink not printing, other print quality issues

The quality of a printed document is not as expected, color or black ink does not print, or printouts are smeared, fuzzy, dark, or faded.

Perform the following tasks in the order given. Use the printer after each task to see if the issue is resolved.

Clean the printhead

Use an automated tool to clean the printhead to restore print quality.

  1. Load plain white paper into the tray.

  2. On the printer control panel, swipe down on the touchscreen to open the Dashboard.

  3. Touch the Setup icon .

  4. Touch Printer Maintenance, and then touch Clean Printhead.

Check for issues with the ink cartridges

Very low ink levels and using non-HP cartridges can cause print quality issues.

  1. Replace any non-HP or refilled cartridges with genuine HP cartridges. HP supplies are available from the HP Store and local retailers.

    HP cannot guarantee the quality or reliability of non-HP or refilled cartridges. Go to HP Anti Counterfeiting and Fraud Program for more information.

  2. On the printer control panel, swipe down on the touchscreen to open the Dashboard, and then touch the Ink Level Indicator icon .

  3. Check the ink levels and replace any low or empty cartridges.

    Ink levels
  4. Rough handling of cartridges during transport or installation can cause print quality problems. Wait a few hours for the automatic servicing routine to complete, and then try to print again.

    If you have a defective HP cartridge, it might be under warranty. Go to About Original HP Cartridges for page yield and HP Limited Warranty information.

Check the paper, print settings, and quality of the file being printed

Make sure your print job is set up for optimal print quality results.

  1. Check the paper type and condition: Make sure the paper is appropriate for the print job and in good condition.

    • Some paper might not absorb ink as well as others, causing faded or smeared prints. Plain paper with ColorLok technology works well for text and documents with graphics. For photos, use HP Advanced Photo Paper for best results.

    • Use clean, wrinkle-free paper. Wrinkled or curled paper can cause dark, horizontal defects.

  2. Load paper according to the print side: Typically, the smoother or glossy side is the print side.

    • For inkjet printers with a rear load tray, load the print side facing up.

    • For inkjet printers with a front load tray, load the print side facing down.

  3. Check the print job settings: From the application you are printing from, click File > Print, and then click Options, Printer Setup, or Preferences, or open the Paper Type/Quality or Media & Quality menu.

    Make sure the color, paper type, paper size, and quality settings are correct for your print job.

  4. Check the quality of the photo or document: Use editing tools to improve colors, brightness, contrast, and any other appearance settings. Higher resolution photographs and graphics result in clearer prints with more accurate colors.

Align the printhead

Use an automated tool to align the ink cartridges.

  1. Load plain white paper into the tray.

  2. On the printer control panel, swipe down on the touchscreen to open the Dashboard.

  3. Touch the Setup icon .

  4. Touch Printer Maintenance, and then touch Align Printhead.

Replace the printhead

Remove the faulty printhead, and then install the new replacement.

  1. Order a replacement printhead from the HP Parts Store (in English) or an authorized HP service provider. To determine if the printhead is still under warranty, go to HP Product Warranty Check.

  2. Load plain white paper into the input tray.

  3. With the printer on, open the ink cartridge access door, and then wait until the carriage stops.

    Opening the cartridge access door
  4. Lift the carriage latch handle to unlock the printhead.

    Lifting the carriage latch handle
  5. Without removing the ink cartridges, grasp the sides of the printhead, and then lift the printhead and pull it toward you.

    Note:

    To avoid ink stains, do not touch the bottom of the printhead.

    Removing the printhead
  6. Place the printhead face-up on a sheet of paper, and then set it aside.

  7. Remove the new printhead from the package.

    CAUTION:

    Do not to touch the printhead electrical contacts or nozzles to avoid damaging them.

    Do not touch the electrical contacts or nozzles on the printhead
  8. Holding the printhead by its sides with the electrical contacts facing into the printer, insert it into the carriage.

  9. Carefully lower the carriage latch handle until it clicks into place.

    Lowering the latch handle on the carriage
  10. Install the Setup cartridges that came with the replacement printhead.

    Note:

    You must install the Setup ink cartridges, or an ink cartridge error occurs.

    Inserting the ink cartridge into its color-coded slot
  11. Close the cartridge access door, and then follow any instructions to align the printer if prompted.

Service the printer

Service or replace your HP product if the issue persists after completing all the preceding steps.

Go to Contact HP Customer Support to schedule a product repair or replacement. If you are in Asia Pacific, you will be directed to a local service center in your area.

To confirm your warranty status, go to HP Product Warranty Check. Repair fees might apply for out-of-warranty products.