E4HP DeskJet Plus 4155e

HP DeskJet Plus 4155e E4 Error: Communication Troubleshooting

The E4 error code on the HP DeskJet Plus 4155e points to a general processing failure during communication between the printer and the host computer. This often occurs due to queue conflicts, outdated drivers, or intermittent wireless connectivity. A full power cycle and network reset is the standard first-response solution.

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Common causes

  • 1Buffer overflow: Excessive pending tasks overwhelming the printer's processing capacity.
  • 2Driver corruption: Corrupt print system files often caused by interrupted Windows/macOS updates.
  • 3Network conflict: IP address duplication or signal instability cutting the transfer stream.
  • 4Outdated firmware: Obsolete software protocols unable to interpret new OS commands.

Solutions

Diagnóstico rápido

The E4 error appears on the panel when the internal processor fails to render or receive print tasks. If the Wi-Fi LED is blinking simultaneously, the problem is almost certainly related to network connectivity or driver communication errors.

Solución paso a paso

  1. Power off the printer and disconnect the power cord for at least 60 seconds to clear the internal volatile memory.
  2. Restart your computer or mobile device to clear the print spooler cache.
  3. Verify that your printer firmware is up to date using the HP Smart app.
  4. Reinstall the print driver if the error persists, ensuring you download the latest version from the official HP website.

Prevención y mantenimiento

  • Keep your printer close to the router to ensure a stable connection; signal drops often corrupt data packets.
  • Update firmware regularly to ensure compatibility with recent system security and communication protocols.
  • Manage network load by limiting the number of heavy bandwidth users on the same Wi-Fi channel.

Cuándo llamar a un técnico

If the E4 error persists after a full driver clean-install and a factory reset, there may be a defect in the internal mainboard. Professional service is required for logical board issues.

Ficha técnica del equipo

  • Technology: Multifunction Inkjet.
  • Speed: 8.5/5.5 ppm.
  • Connectivity: Wi-Fi 802.11 b/g/n, Bluetooth LE.
  • Capacity: 60 sheets input / 25 output.
  • Compatible consumable: HP 67 / 67XL cartridges (3YM56AN series).
  • Usage: Home office and personal use.
  • Official drivers / firmware

Steps to follow

  1. 1

    Power cycle

    Disconnect the power cord to clear the printer's capacitors.

  2. 2

    Spooler purge

    Clear the print queue in your OS to remove stuck documents.

  3. 3

    Firmware update

    Install the latest firmware via the HP Smart app.

  4. 4

    Network reset

    Forget the Wi-Fi connection and set it up from scratch.

Frequently asked questions

It is a communication or processing error, indicating the printer cannot interpret or receive data properly.

Usually it's not permanent, but it indicates a deeper software or network issue that needs resolution.

No, the E4 error is not related to ink. It is a logical/communication error, not a supply issue.

Checking for updates every 3 months via HP Smart is recommended to maintain optimal communication with modern devices.