!
error HP
Error Code E5
The scanner is not working. The scanner component has failed or is not responding.
? What Causes This
Scanner malfunction or communication error.
✓ How to Fix It
Turn the printer off, and then on again. If the problem persists, contact HP. The printer can still print even if the scanner is not working.
Source: page 15 of the official manual
From the manual
This error code appears in:
HP Smart Tank 6000 Printer