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Windows 11 USB IPP Printer Scanner Issue: What to Check
A practical checklist for Windows 11 multifunction printers whose scanner or fax stops appearing after KB5079473 or a later update.
The short answer
Microsoft says Windows 11 updates KB5079473 and later can affect scanner or fax recognition on some USB-connected multifunction printers that use IPP over USB. If printing still works, test a standalone copy, confirm the exact USB/IPP conditions, and use Microsoft's remove-and-reconnect path as a temporary check; do not buy supplies or install an unofficial driver updater.
Before you start
- Do not buy ink, toner, a drum, a printhead, or a replacement printer because the scanner disappeared after a Windows update.
- Confirm whether the printer can still make a standalone copy and whether ordinary printing still works.
- Use Microsoft and the printer maker's exact model support page; avoid unofficial scanner bundles, driver mirrors, rollback promises, and reset utilities.
Check whether the known issue fits
Microsoft's current notice describes a specific Windows 11 scenario: KB5079473 or later, a USB-connected multifunction printer, and IPP over USB support. The affected non-printing interfaces can include scanning and fax, so the printer may still print while Windows no longer recognizes the full device.
This is a fit check, not a diagnosis for every scanner problem. If the printer is network-connected, single-function, not IPP over USB, or running another operating system, use the ordinary Windows or manufacturer support path instead.
- Windows 11 is installed, and the update history shows KB5079473 or a later update.
- The multifunction printer is connected directly by USB.
- The model supports IPP over USB, according to its official documentation.
- Printing may still work while scanning or fax functions disappear or fail to install.
Prove the printer-side functions first
Use the printer's own copy function if it has one. A successful standalone copy shows that the scanner can capture a page without relying on Windows; a failed copy or service message points back toward the device, feeder, or manufacturer support rather than this Windows issue.
Also try one plain print job from the current Windows queue. This keeps a missing scanner function separate from a broader USB, queue, paper, or printer-side problem.
- Check the printer screen for a cover, feeder, paper, or service message.
- Try one standalone copy with the flatbed before testing the document feeder.
- Record the exact model, USB connection, Windows version, and update number before removing anything.
Microsoft's temporary reconnect check
Microsoft says there is no confirmed workaround yet and that it is investigating. In some environments, removing the affected device from Windows and physically disconnecting and reconnecting the USB cable temporarily restores scanner detection.
Use this as a reversible diagnostic step, not as proof that the issue is permanently fixed. Removing a device can discard its Windows queue or settings, so note the printer name and connection details first, and do not remove a work- or school-managed device without permission.
- Open Settings > Bluetooth & devices > Printers & scanners.
- Select the affected multifunction printer and choose Remove device.
- Disconnect the USB cable from the printer and the Windows PC.
- Reconnect the USB device, let Windows detect it, and test scanning again.
- If the scanner returns only temporarily or the printer no longer adds cleanly, stop and use Microsoft or the manufacturer for the next supported step.
When an official package is still appropriate
If the known-issue conditions do not fit, or if the scanner remains unavailable after the reconnect check, go to the manufacturer's support page for the exact model, region, Windows 11 version, and system type. Install a current scanner package only when that page identifies it as the supported path.
Do not use a generic driver updater to work around a Windows platform issue. A manufacturer package may restore model-specific scan, feeder, fax, or device-button features, but it cannot guarantee a fix for Microsoft's active known issue.
Stop and escalate
Stop Windows-side troubleshooting if the printer cannot make a standalone copy, shows a service-only error, grinds, smells hot, leaks ink, or repeatedly disconnects. Use the manufacturer, workplace IT, or a qualified repair path for those conditions.
Keep the update number and the exact Microsoft known-issue conditions in your support request. That is more useful than replacing supplies or trying an unverified rollback.
Windows 11 USB IPP scanner triage
| What you see | First interpretation | Safer next step |
|---|---|---|
| Printing works, scanner disappeared, USB multifunction printer | Known-issue conditions may fit | Test standalone copy, record KB5079473 or later, then try Microsoft's reconnect check |
| Scanner and printing both fail | Broader USB, queue, device, or support problem | Check the printer screen and Windows device entry before changing drivers |
| Network-connected printer | Not the specific USB IPP scenario | Use same-network, Windows add-device, and manufacturer support checks |
| Reconnect helps only briefly | Temporary detection, not a confirmed fix | Keep the support details and wait for Microsoft or manufacturer guidance |
| Work or school-managed device | Policy may control device removal or drivers | Ask IT for the approved recovery path |
Questions that come up
Does KB5079473 affect every Windows 11 printer?
No. Microsoft's notice describes USB-connected multifunction printers that support IPP over USB, with scanner or fax recognition problems on affected systems. A network printer or a single-function printer may have a different cause.
Should I uninstall the Windows update?
Do not make an update rollback your first move. Microsoft says it is investigating and does not list a confirmed workaround; record the conditions, try the supported reconnect check, and follow Microsoft or manufacturer guidance for the exact device.
Will a new scanner driver definitely fix the problem?
No. Microsoft says third-party drivers can fail to install in this scenario. Use only current packages from the exact manufacturer support page, and do not treat an unofficial driver utility as a safe workaround.
Sources and manuals
Read the original instructions and check the details for your printer.
- 1Microsoft Windows 11 USB IPP multifunction printer known issue
Microsoft Learn known-issue notice for Windows 11 updates KB5079473 and later, where USB-connected IPP multifunction printers may lose scanner or fax recognition.
- 2Microsoft printer driver compatibility troubleshooting
Microsoft support guidance for checking Windows version, updating drivers, using manufacturer packages, and reinstalling printers.
- 3Microsoft Windows Ready Print documentation
Microsoft documentation for Windows Ready Print, IPP, eSCL scanning, Mopria certification, and Protected Print relationship.
Something doesn’t match your printer? Tell us which page and model. These guides are based on published documentation; they are not reports of hands-on repair tests.
A useful next read
Windows Scanner Not Found After an Update: What to Check
A practical Windows checklist for multifunction printers where printing still works but scanning disappeared after an update.
Windows IPP Class Driver vs Manufacturer Driver: Which Should You Try First?
A practical Windows printer-driver explainer for deciding when to use the built-in IPP path and when an official manufacturer package still matters.
Windows July 2026 IPP Driver Preference: Printer Checklist
A practical July 2026 checklist for Windows 11 printer owners after Microsoft's driver-ranking change toward the built-in IPP class driver.
Windows Protected Print: Why Your Printer or Scanner May Disappear
A practical Windows Protected Print checklist for printer removal, scanner limits, Mopria checks, and safe reinstall paths.