communication between the computer and the printer while scanning a document

[danielheimann]

printer HP  deskjet4675, try to scann to the computer . the scanning dont finshed and an error of communication loss apear, although the local net and internet are OK

[Hawks_Eye]

Hi @danielheimann 

Welcome to the HP Support Community! We're here to help you get back up and running.

Thanks for explaining the situation so clearly. It’s genuinely frustrating when scanning stalls midway and throws a communication error—especially when your HP DeskJet 4675 is connected to the network and everything else seems fine. This issue typically points to a breakdown in the scanner-to-PC handshake, often caused by driver conflicts, firewall interference, or unstable wireless links.

Here’s a structured recovery path to help restore reliable scanning:

 

Step-by-Step Fix for Scan Communication Loss

1. Restart Devices and Clear Memory

• Power off the printer and unplug it for 60 seconds
• Restart your computer
• Power the printer back on and reconnect to Wi-Fi

 

2.  Use HP’s Diagnose & Fix Tool (Windows)

• In the HP Smart app, click Printer Settings > Diagnose & Fix.
• Let it run a scan—it will automatically fix common connection issues.
  You can also access this tool on HP’s support page if needed.

 

3. Update Drivers and Firmware

Outdated or mismatched drivers can cause scan failures.

• Visit:
  HP DeskJet 4675 Drivers & Firmware
• Download and install:
  • Latest full feature driver
  • Firmware update for your printer
• Restart your PC and printer after installation

 

4. Scan Using HP Smart App

This bypasses older scan utilities and improves reliability.

• Download: HP Smart for Windows
• Open the app and click Scan
• Choose Source: Flatbed or Document Feeder
• Save the scan locally and confirm completion

 

5. Check Firewall and Antivirus Settings

Security software may block scan traffic.

• Temporarily disable third-party antivirus or firewall
• Ensure HP programs are allowed through Windows Firewall:
  • Go to Control Panel > System and Security > Windows Defender Firewall > Allow an app
  • Ensure HP Network Device Support and HP Scan are checked

You’ve already taken the right steps by confirming network health—let’s make sure your scanner completes jobs reliably and gets back to smooth operation. 

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Take care, and have an amazing day!

Regards, 

Hawks_Eye