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HP Printers - USB Scanner Connection Error
(Windows)
This document is for HP multifunction printers connected to a Windows computer with a
USB cable.
When you try to scan, the computer or the scanner is not found or the scan fails. An error
message displays:
An error occurred communicating with the scanning device
Computer not found
Scanner not found
Step 1: Run the Print and Scan Doctor
Download and run HP Print and Scan Doctor to automatically diagnose and resolve printer
hardware and connection issues.
After the Print and Scan Doctor opens, click Fix Scanning to test your scanner, and then follow
any instructions to resolve the issue.
Try to scan. If the error persists, continue to the next step.
Step 2: Uninstall and reinstall the printer software
Resolve scan connection issues by uninstalling the printer software before reinstalling the latest
driver.
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 123.hp.com. 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.
Step 3: Check Windows Image Acquisition settings

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