E6DeskJet 3755

HP DeskJet 3755 E6 error: Configuration fault

The HP DeskJet 3755 E6 error is a software fault that usually occurs when the printer loses its network configuration. This prevents mobile devices from detecting the unit for printing. Knowing why does my HP DeskJet 3755 show E6 error is key to setting up wireless connectivity properly.

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Common causes

  • 1Network IP address conflict.
  • 2Outdated mobile application version.
  • 3Suspension mode prevented automatic reconnection.
  • 4Handshake negotiation failure between router and printer.

Solutions

Quick Diagnosis

The E6 error is typically a network communication issue, not mechanical. If you can print a configuration report via the panel, your printer hardware is fine, but the app communication has dropped.

Step-by-Step Solution

  1. App: Close and reopen the HP Smart application on your phone.
  2. Network: Ensure both the mobile and the printer are on the same 2.4GHz Wi-Fi.
  3. Reset: Hold the network button for 5 seconds to put the printer in pairing mode.
  4. Config: Re-add the printer through the application menu.

Prevention and Maintenance

Always use official software for firmware updates to avoid OS incompatibilities. Keep cartridge heads clean to ensure no false error reporting is triggered by the app.

When to Call a Technician

If the printer fails to connect to any device after several factory resets of network settings, the internal Wi-Fi module may be failing.

Technical Specifications

  • Technology: Multifunction Inkjet.
  • Speed: Up to 8 ppm (black).
  • Connectivity: Wi-Fi 802.11 b/g/n.
  • Capacity: 60-sheet tray.
  • Compatible Supplies: HP 65 / 65XL Ink.
  • Usage: Home use.
  • Official Drivers / Firmware

Steps to follow

  1. 1

    Restart app

    Close and reopen the HP Smart app.

  2. 2

    Verify connection

    Ensure Wi-Fi is active on both devices.

  3. 3

    Network reset

    Hold the network button to reset connection.

Frequently asked questions

It indicates a synchronization error between the mobile device or PC and the printer.

It is moderate; it does not block physical use, only remote features.

HP 65 / 65XL cartridges, which must be correctly installed to prevent false reporting.

Avoid frequent Wi-Fi password changes and keep software updated.

HP DeskJet 3755 E6 error: Configuration fault | Vimazdev