Fixing Epson EcoTank Error E02: 100016 Scanner Error After Cable Disconnection

Question:
How can I fix an Epson EcoTank that shows error E02: 100016 Scanner Error? The scanner worked fine until I accidentally unplugged the cables while cleaning the printhead. After cleaning and reinstalling the contacts, the scanner still won't move. Could this issue be related to unplugging the wires?

Answer:

The error you are encountering, E02: 100016 Scanner Error, typically indicates that the printer's scanner assembly cannot initialize properly. From your description, it's very likely that the issue began when the cables were unplugged during your cleaning process. Here's a detailed breakdown:

1. Loss of Scanner Position Reference
   When scanner cables are disconnected while the printer has power or before it has fully reset, the firmware can lose track of the scanner's home position. Once this happens, even if you reseat the cables correctly, the system may not be able to re-initialize the scanner motor.

2. Cable Connection and Contacts
   You already did the right step by cleaning the contacts and reseating them. However, even when cables look properly reconnected, a misalignment or slightly loose connection can prevent communication between the scanner sensor and the mainboard. Double-check that the cable is not flipped, bent, or damaged.

3. Firmware Lock and Motor Stalling
   In some cases, the firmware may enter a fault state where the motor no longer attempts to move. This makes the scanner appear "dead," even though the electronics are intact. Unfortunately, Epson firmware is not user-resettable in most cases, so once it fails to recover, it remains stuck.

4. Physical Damage Possibility
   A sudden unplugging while powered can create a surge or incomplete signal that damages the scanner sensor or motor controller. If this happened, the scanner unit itself may now be faulty and will not respond regardless of cable cleaning.

Possible Fixes to Try:

• Power cycle the printer completely: unplug the power cord, wait at least 10 minutes, then reconnect and turn it on.

• Double-check all flat cables for proper seating and orientation. Even a slight misplacement can cause communication loss.

• Inspect the cables under bright light to ensure no pins are burnt, bent, or broken.

• If none of the above restores movement, the scanner assembly is likely damaged and will require replacement or professional servicing.

Addressing printer issues can be complicated since many of them require hands-on inspection and specialized tools. Because of this, we're not able to provide remote troubleshooting or repair services. However, we do offer in-person evaluation and repair services at our local diagnostic facility (https://bchtechnologies.com/printer-repair-service). Please note that demand is high and repairs are handled on a first-come, first-served basis, so there may be a wait time before your printer can be worked on. Our services are structured to repair either the entire printer or specific parts with clear next steps. We understand that professional repairs may not always be the most economical option, so we also encourage you to explore self-help solutions online. You can start by searching through our YouTube channel (https://youtube.com/@bchtechnologies). Use the search icon next to the "About" tab on our channel page to find videos by topic. YouTube's algorithm may also suggest additional helpful videos from other creators.

Thank you again for reaching out and for supporting BCH Technologies. We deeply appreciate your patience and your commitment to solving printer issues with us.