E8HP DeskJet 2720

Fix HP DeskJet 2720 Error E8: Scanner Failure Resolved

The E8 error code on the HP DeskJet 2720 typically occurs when the system fails to properly initialize the scanner module. This error prevents copying and scanning functions from working. Resolving this is essential to restoring the full functionality of your device.

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Common causes

  • 1Temporary failure in the scanner carriage motor initialization.
  • 2Build-up of static electricity on the main logic board.
  • 3Outdated firmware version causing hardware conflicts.

Solutions

Power Cycle

  1. With the printer on, unplug the power cord.
  2. Wait 60 seconds to allow residual power to dissipate.
  3. Plug the cord directly into a wall outlet.

Firmware Update

  1. Ensure the printer is connected to a stable Wi-Fi network.
  2. Open the HP Smart app on your mobile device.
  3. Check for any pending firmware updates and install them.

Steps to follow

  1. 1

    Full Power Down

    Unplug the power cable while the printer is currently on.

  2. 2

    Power Discharge

    Press and hold the power button for 15 seconds.

  3. 3

    System Reset

    Plug the cable back in and wait for the initialization cycle to finish.

Frequently asked questions

It is not physically dangerous, but it signals that the scanner hardware is not responding, halting that specific function.

If the error persists after a hard reset, it might indicate a mechanical failure of the scanner motor requiring professional repair.

Usually, the E8 error is scanner-specific, so printing might remain available depending on the system state.