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Message 1 of 2
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HP3630 says scanner already in use when it's not

HP Recommended
Microsoft Windows 8.1 (64-bit)

Trying to scan a document with HP3630.  It worked fine before my computer had to be reset and the HDD changed.  Now it won't work.  Error message says scanner already in use when it's not.  Tried the whole unplugging, restarting computer etc. rigmarole, to no avail.  Tried uninstalling and reinstalling the software: again, no joy.  The only other thing HP's useless virtual assistant suggests is to press the scan button when it's empty and see if the scanning mechanism moves, because HP's bot is too stupid to realise that the HP3630 doesn't have a scan button.  How can I make it work?  

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Message 2 of 2
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@Anne-Onymous, Welcome to HP Support Community!


Follow the steps below-


Use HP Print and Scan Doctor

Download HP Print and Scan Doctor and run the program. It will automatically diagnose and fix any printer connectivity issues. 

For more information, go to


Resolve scan connection issues by uninstalling the printer software before reinstalling the latest driver.


Do not disconnect the printer from the network when uninstalling the software.

  • 1. Disconnect the USB cable from the printer, if necessary.

  • 2. In Windows, search for and open Control Panel.

  • 3. Under Programs or Programs and Features, click Uninstall a program to open the list of installed programs.

  • 4. Click the HP printer name to open the uninstall confirmation window, and then click Yes to complete the software removal.

  • 5. Make sure the printer is turned on, cartridges are installed, and plain paper is loaded in the main tray.

  • 6. Go to This guided service automatically locates the correct print driver or app for your computer operating system version.

  • 7. Follow the instructions to download and install the driver or app. During the installation, select HP Smart or the full software option to get the most out of your HP printer, and then follow the steps to set up the printer connection.

Try to scan. If the error persists, continue to the next step.


Windows Image Acquisition (WIA) is a Windows service that helps communication between the computer and scanners. If WIA is not activated, scan jobs can fail.

  • 1. In Windows, search for and open View local services .

  • 2. In the Services window, scroll down the list and find Windows Image Acquisition (WIA) .

  • 3. Look at the Status and Startup Type values.

    • If the status is Started or Running and the Startup Type is Automatic, WIA is running correctly. Skip to the next step.

      Making sure WIA Status is Running and Startup Type is Automatic

    • If the status is Disabled or no status displays, right-click Windows Image Acquisition (WIA), click Properties, click the General tab, select Automatic from the Startup type dropdown menu, and then click Start.

      If the Start button is grayed out, go back to the Services menu, make sure Remote Procedure Call, Shell Hardware Detection, RPC Endpoint Mapper, and DCOM Server Process Launcher are running and set as Automatic, and then start WIA.

Try to scan.


Hope this helps! Keep me posted. 


Please click “Accepted Solution” if you feel my post solved your issue, it will help others find the solution. Click the “Kudos/Thumbs Up" on the bottom right to say “Thanks” for helping!


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