no computer found error.

[mike L]

Everything use to work. Now, no computer found error when scanning. Paper jam error when trying to print. Coping works.
USB connected
HP4650
Wind. 11

 

[PeterBJ]

I cannot tell what is the problem, only make some guesses.

I guess that the printer is an HP OfficeJet 4650 printer-scanner-copier? Scanning works and the printer works when used as a copier but when trying to print a job from the computer you get a paper jam error?

I think there is no hardware error in the printer as the copier function shows that both the scanner and printer works. Instead I think it is a software error. Did the error appear after a Windows update? A Windows update has caused problems before. Or maybe the driver has become corrupted? If so uninstalling and reinstalling the driver and other software might help. If You have another computer you could try if the printer works with that computer.

Are you using aftermarket/remanufactured cartridges and have updated the printer's firmware? HP aggressively uses firmware updates to block the use of aftermarket cartridges.

 

[thebestcpu]

Hi Mike L
You don't give much information such as which software approach you are using for scanning as there are several ways to do scanning to the computer. Without more details, here is a more broadbrush approach answer for the several ways to go about scanning and what to do when it does not work. This is off the internet and I do not have that HP printer. I always initiate scans to my HP printer via the computer and not from the printer and have never had a problem.:

Here’s a step-by-step guide for scanning to a Windows 11 computer with
your HP OfficeJet 4650:

------------------------------------------------------------------------

1. Make Sure Everything Is Set Up

- Connect printer: Ensure your HP 4650 is powered on and connected to
the computer (via USB cable or Wi-Fi).
- Install software: If you haven’t already, install HP Smart or the HP
Full Feature Software and Drivers:
- HP Smart for Windows 11 (Microsoft Store)
- HP Drivers and Downloads

------------------------------------------------------------------------

2. Using HP Smart App (Recommended)

1. Open HP Smart on your PC.
2. If not added, click “+” to add your printer.
3. On the home screen, click Scan.
4. Place your document:
- Flatbed glass → face down, aligned to the corner.
- Document feeder (if using multiple pages) → face up.
5. Adjust settings (scan type, color, resolution, file type).
6. Click Scan.
7. When complete, click Save → choose JPEG, PDF, or TIFF → save to your
computer.

------------------------------------------------------------------------

3. Using Windows Scan App (Alternative)

1. Download Windows Scan from the Microsoft Store (free).
2. Open the app → select your HP 4650.
3. Place the document on the scanner.
4. Choose File type (JPEG, PNG, PDF).
5. Click Scan.
6. File will be saved to your Pictures → Scans folder by default.

------------------------------------------------------------------------

4. Using Windows Fax and Scan

1. Press Windows key → search Windows Fax and Scan → open.
2. Click New Scan (top left).
3. Select your HP 4650 as the scanner.
4. Choose settings (document type, color, resolution).
5. Click Preview if you want to check, then Scan.
6. Save the file from the preview window.

------------------------------------------------------------------------

Tip: If scanning fails, restart both printer and PC, make sure
Windows detects the printer under Settings → Bluetooth & Devices →
Printers & Scanners, and reinstall HP Smart if needed.

------------------------------------------------------------------------

 

[The Hat]

Wind. 11

Reinstall windows 10 is the only way to get back to normal, your printer drivers are not compatible with your new O/S..

There is a tsunami on the way for all users who upgrade to Win 11.. Check before you install..

 

[Malneb]

Windows 10 drivers generally work on Windows 11

 

[The Hat]

Windows 10 drivers generally work on Windows 11

No they don’t.. That’s why the confusion..
Mac O/S are doing much the same..

 

[Malneb]

Windows 11 uses the exact same driver infrastructure as windows 10. Both WDK and WDF built drivers can work consecutively in both 10 and 11, its only edge cases where a driver may not work. Printer manufactures are known for being crumby and force planned obsolesce. This could be one way but regardless the driver should work.

https://en.wikipedia.org/wiki/Windows_Driver_Frameworks#Versions

Test case scenario, if the driver is not working then you would expect it to report as so. Snap-in the device into event viewer and troubleshoot.

 

[The Hat]

but regardless the driver should work.

What more can I say…!