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Note: From May 1, 2024, the HP Scan and Capture app will no longer be available (retired) in the Microsoft Store and HP will not release any further app updates. Alternatively, you can download HP Smart from the Microsoft Store. For more information on how to set up your printer using the HP Smart app, go to HP printer setup (HP Smart app).
Common problems HP Solution Center not working : Adobe Flash Player Error and Unable to scan
We would like to share some of the most frequently asked questions about HP Solution Center not working : Adobe Flash Player Error and Unable to Scan.
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‎10-24-2020 03:17 PM

HP Recommended
Product: Photosmart 3830
Operating System: macOS 10.15 Catalina

When I click on "Systems Preferences" and try to scan, I get "Failed to open connection to the device (-21345). I've tried unplugging the power chord, waiting 60 seconds, nothing works. From all the related comments, it looks like a major issue coming from HP. 

Category:
26 people had the same question
4 REPLIES 4

‎10-26-2020 08:54 AM

HP Recommended

I have the same problem.  When is the fix coming ?

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‎10-26-2020 01:32 PM

HP Recommended

I went to 'HP Customer Support - Software and Driver Downloads'

and downloaded the driver. It worked.
I have an officejet 6500

 

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‎10-27-2020 12:27 PM

HP Recommended

@TheGreek9 @pbchair

Thank you for posting on the HP Support Community.

 

Don't worry as I'll be glad to help, however, to provide an accurate resolution, I need a few more details:

  • Did you make any changes on the settings of your Printer prior to the issue?
  • When was the last time it worked fine?
  • Is your macOS up to date?

Try updating the printer's firmware - HP Printers - Updating or Upgrading Printer Firmware 

Update mac-How to update the software on your Mac

 

Hope this helps! Keep me posted for further assistance.
Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.

ECHO_LAKE
I am an HP Employee

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‎12-01-2020 09:57 AM

HP Recommended

Many HP printer customers with Mac computers are encountering this problem and HP Employee Echo_Lake refuses to recognize the wide scale issue or provide a common solution.  FAIL

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