Epson EcoTank printers may occasionally display Scanner Error E02 with the additional code 100016. This message can appear suddenly, even after the printer has powered on normally, and it often persists after restarting the device. Understanding what this error means can help users make informed decisions about reuse, maintenance awareness, and reducing unnecessary electronic waste.
What the Error Indicates
When an Epson EcoTank printer starts, it performs a brief internal check. As part of this process, the scanner assembly moves to a specific position and reads a small white reference area. This confirms that the scanner system is functioning correctly.
The printer does not visually “see” this movement. Instead, it relies on internal sensors and electrical signals to confirm that the scanner lamp turns on and that the scanner unit can move freely. If the printer cannot confirm this process, it reports Scanner Error E02 (100016).
Common Conditions Associated With Error 100016
Based on the behavior shown and explained in the video, this error is commonly associated with one or more of the following conditions:
- Restricted scanner movement
The scanner unit may be unable to move fully to its expected position due to physical resistance or internal mechanical issues. - Signal or connection issues
The printer depends on internal cables to deliver power and sensor signals to the scanner. If these connections are not functioning correctly, the scanner may not respond as expected. - Scanner lamp not activating
During startup, the scanner lamp should emit visible light. If no light is present, the printer may interpret this as a scanner failure. - Internal electronics issues
In some cases, the error may relate to the printer’s main control board, which coordinates scanner movement and sensor feedback.
Why the Error Persists After Restarting
Restarting the printer repeats the same startup check. If the underlying condition has not changed, the printer will continue to detect the same issue and display the error again. This is why repeated power cycling alone often does not resolve Error E02 (100016).
Why Understanding the Cause Matters
Learning what triggers scanner errors helps extend the usable life of printers and supports responsible electronics use. Many scanner-related errors are not caused by total device failure, and understanding their context can prevent premature disposal of otherwise functional equipment. Education around printer behavior is an important step toward reducing e-waste and encouraging repair awareness.
Watch the Video for Visual Context
For a clear visual explanation of how this scanner error occurs and how the printer behaves during startup, the embedded video provides helpful context directly related to Error E02 (100016).
