Scan to PC not working — Windows 11/10 troubleshooting
Joe B.
Reviewed for technical accuracy
Specialities: Windows 11/10, macOS (Sonoma/Ventura/Monterey), Printers, Scanners, Networking, Office Equipment
Scan to computer not working on Windows 10/Windows 11 — HP Smart, Epson Scan 2, Brother, Canon
Technician
Technician
• The Windows Image Acquisition (WIA) service or Function Discovery Provider Host is stopped, blocking TWAIN/WSD discovery.
• A class driver or Microsoft IPP queue replaced the full vendor driver; printing works but scanner not detected.
• The OEM app (HP Smart, Epson Scan 2, Brother ControlCenter4, Canon IJ Scan Utility) lost permissions or the Scan to Computer agent is off.
• Firewall rules or network isolation (guest Wi‑Fi/VLAN) block the scanner’s discovery ports.
Quick plan: restart WIA & dependencies, repair the driver/software, verify the scanner profile (TWAIN/WIA/WSD), and test from Windows Fax and Scan.
Technician
1) Press Win+R → type
services.msc.2) Restart and set Automatic for: Windows Image Acquisition (WIA), Function Discovery Provider Host, Function Discovery Resource Publication, Shell Hardware Detection.
3) If HP: also restart HP PrintScan Doctor service / HP Network Devices Support. For Epson: Epson Scan Service; Brother: BrLog/ControlCenter; Canon: IJ Network Scanner Selector EX.
Then try scanning from Windows Fax and Scan or Photos → Import from scanner.
Technician
• Remove the printer from Settings → Bluetooth & devices → Printers & scanners.
• Open Control Panel → Programs and uninstall any partial driver.
• Install the vendor’s Full Feature Software (HP Smart with drivers / HP Easy Start, Epson Scan 2 package, Brother Full Driver & Software, or Canon IJ suite).
• Add the device again. Prefer a WSD/Network or dedicated TCP/IP port; avoid the generic IPP class queue for scanners.
After install, enable Scan to Computer (HP: HP Smart → Printers → Scanner → toggle).
Technician
• Ensure the PC and MFP are on the same subnet (no guest isolation).
• Turn on Network discovery and File and printer sharing in Advanced sharing settings.
• Allow the OEM apps through Windows Defender Firewall (HP Smart, Epson Scan 2, Brother ControlCenter4, Canon IJ).
• For WSD discovery, UDP 3702 (WS-Discovery) and 5353 (mDNS) must be allowed. If blocked, add the scanner by static IP in the vendor utility.
Technician
• HP: In HP Smart enable Scan to Computer. If missing, run HP Print and Scan Doctor and reinstall using HP Easy Start (not IPP class queue).
• Epson: Install Epson Scan 2 & Events Manager. Open Epson Network Utility and bind the device by IP. Ensure WIA-Epson shows in scanners list.
• Canon: Use IJ Scan Utility (home) or MF Scan Utility (imageCLASS). Run IJ Network Scanner Selector EX to pick the network scanner profile.
• Brother: Install Full Driver & Software Package and launch ControlCenter4 or iPrint&Scan; in Device Settings choose the exact model and network node.
Technician
Technician
• Remove the IPP class queue and reinstall the vendor suite.
• In Device Installation Settings, choose not to auto‑download manufacturer apps (optional).
• Create a restore point and export your Scan profiles in the OEM app (PDF to folder/Email) for quick recovery.
Technician
• HP Smart / Epson Scan 2 / Brother iPrint&Scan / Canon IJ: choose PDF or Searchable PDF (OCR), pick Save to folder (e.g.,
C:\Scans) or a synced OneDrive/Google Drive path. For MFP panel scanning, configure SMB scan to folder with your Windows credentials.
Technician
Quick answer: the accepted fix
Accepted fix when Scan to PC not working (Windows 10/Windows 11): Restart WIA and discovery services, reinstall the full scanner driver/software for your brand (HP/Epson/Canon/Brother), enable Scan to Computer in the OEM app, and ensure network discovery & firewall allow WSD/mDNS. If the queue is IPP Class Driver, replace it with the vendor package that includes the scanner driver (WIA/TWAIN).
Scanner not detected after Windows Update — HP Smart / Epson Scan 2 / Brother / Canon
Updates may swap in a printing‑only class driver. Remove the queue, install the brand’s Full Feature Software, then verify Windows Image Acquisition is running. In HP Smart, toggle Scan to Computer back on; in Epson/Canon/Brother select the device in their Network Scanner Selector utility.
How to verify scanning works
Open Windows Fax and Scan and run a test scan at 200 DPI to Documents\Scanned Documents. Then scan from the OEM app to ensure TWAIN works. If scanner not found persists, add the printer by static IP, disable guest isolation, and confirm firewall rules for WSD (UDP 3702) and mDNS (5353).
Scan to PC — troubleshooting tips
Most scan issues come from a disabled WIA service, firewall blocks, or a missing vendor driver.
Quick path: verify network → restart WIA → reinstall full driver (HP Smart / Epson Scan 2 / IJ Scan Utility / ControlCenter4) → select the correct scanner source (WIA/TWAIN) → test in Windows Fax and Scan. Avoid generic IPP class queues when you need scanning.
Disclaimer: This information is AI-generated and intended for general guidance only. For advice specific to your environment, please consult a verified expert on Whizz-Tech before making decisions.
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FAQ
Why is Scan to PC not working on Windows 10 / Windows 11?
Usually the Windows Image Acquisition (WIA) service is stopped, the firewall blocks discovery, or a printing‑only class driver replaced the vendor package. Restart WIA, allow the OEM app through the firewall, and install the full driver to restore the scanner driver (WIA/TWAIN).
HP Smart says “Scan to Computer is disabled” — what now?
Open HP Smart → your printer → Printer Settings → enable Scan to Computer. If the toggle is missing, reinstall using HP Easy Start (not IPP class), and restart HP Network Devices Support and WIA services.
Scanner not detected over Wi‑Fi but USB works
Ensure the PC and MFP share the same network (no guest isolation). Allow WSD/mDNS in the firewall, bind the device by static IP in the vendor utility (Epson/Canon/Brother), and avoid adding it as an IPP class queue.
What’s the difference between WIA and TWAIN?
WIA is Microsoft’s scanning interface used by Windows apps; TWAIN is used by many desktop apps. Install both when available and pick the correct source in your scanning software.
Brand tips for HP / Epson / Canon / Brother?
Install the latest full driver suite: HP Smart + Easy Start, Epson Scan 2, Canon IJ/MF Scan Utility, or Brother ControlCenter4/iPrint&Scan. These packages expose Scan to PC, OCR, and network scanner selectors.
| Symptom | Likely cause | Quick fix |
|---|---|---|
| Scanner not detected | WIA stopped; IPP class queue; firewall blocks | Restart WIA; install vendor suite; allow WSD/mDNS |
| HP Smart: Scan to Computer disabled | Background agent off; partial driver | Enable in HP Smart; reinstall via Easy Start |
| TWAIN works, WIA fails (or vice‑versa) | Missing driver flavor | Install both WIA/TWAIN; select correct source |
| Works on USB, not on Wi‑Fi | Guest network / discovery blocked | Same subnet; static IP; open discovery ports |
Step‑by‑step (Windows 10/11)
- Restart WIA and discovery services in services.msc (WIA, FDPHost, FDResPub).
- Remove the generic queue; install the brand’s Full Feature Software that includes the scanner driver.
- Enable Scan to Computer in the OEM app and select the device in its Network Scanner Selector.
- Test in Windows Fax and Scan and in the vendor app; then create a default scan profile (PDF to folder/Email).
Sources
- Microsoft — Fix scanner problems in Windows
- HP — HP Smart / Easy Start / Print and Scan Doctor
- Epson — Epson Scan 2 & Events Manager
- Canon — IJ/MF Scan Utility & Network Scanner Selector EX
- Brother — ControlCenter4 / iPrint&Scan
Filed under: Printers
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