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HP Customer Support - Knowledge Base

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  • Information
    Facing print or scan issues after upgrading to macOS Catalina 10.15?

    Make sure you have the latest Catalina version 10.15.3 installed. Check now 

    Information

    Web services (e.g. ePrint) stop working?  Digital certification might have expired. Update your printer’s firmware

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    Important Print Security Update

    HP was recently made aware of a vulnerability in certain InkJet and LaserJet printers by a third-party researcher. HP has updates available for download to address the vulnerability. Details and more information are available in the  Security Bulletin.

    Information
    Fix HP Printer issue on macOS

    A [software component] will damage your computer message displays when printing or while installing - Click Here

    Information

    Audio or sound issues? Try our automated HP Audio check!

    Information

    Fix and resolve Windows 10 update issue on HP Computer or Printer. Click here

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    Create an HP account today!

     Connect with HP support faster, manage all of your devices in one place, view warranty information and more. Learn more​

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HP DeskJet 3630, 4720 Printers - Blinking Lights

This document is for HP DeskJet 3630, 3631, 3632, 3633, 3635, 3634, 3636, 3637, 3638, 3639, DeskJet Ink Advantage 3635, 3636, and 3638, and DeskJet Ink Advantage Ultra 4729 All-in-One printers.
The following sections describe the most common error conditions with combinations of blinking (flashing) lights displayed on the control panel, followed by solutions for each combination. Find the blinking lights pattern you are experiencing, and then follow the steps to resolve the issue.
    Figure : Control panel with lights indicated
    Image: Control panel with lights indicated
  1. Control panel display
  2. Cancel button
  3. Wireless button/light
  4. Wi-Fi Direct button/status light
  5. Start Copy Color button
  6. Power button/light
  7. Ink Alert light
  8. Resume button/light
  9. Information button/light
  10. HP ePrint button/light
  11. Start Copy Black button
    Figure : Control panel display icons
    Image: Control panel display icons
  1. Number of Copies icon
  2. Error icon
  3. Paper Error icon
  4. Wi-Fi Direct icon
  5. Wireless icon
  6. Wireless Attention icon
  7. Signal Bars icon
  8. Ink Level icons

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.

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Country/Region: Flag United States

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