Epson EcoTank Pro ET-5850 Common Error Codes: Meanings and Solutions
The Epson EcoTank Pro ET-5850 is a high-performance business inkjet printer designed for offices and high-volume printing. Like other Epson printers, it uses error codes to indicate operational, mechanical, or maintenance issues.
Below are the most common error codes reported on the Epson EcoTank Pro ET-5850, along with explanations and recommended solutions.
E-01 – General Printer Error
Description: A general error related to printer operation. It may occur due to paper jams, an open cover, or internal obstructions.
How to fix:
- Turn off the printer and unplug it for 3–5 minutes
- Check for jammed paper, including small scraps
- Ensure all covers are fully closed
- Restart the printer
If the error continues, the paper sensor or feed mechanism may require inspection.
E-02 – Scanner or Internal Movement Error
Description: Indicates a problem with the scanner unit or internal mechanical movement.
How to fix:
- Turn off the printer and open the scanner unit
- Remove any foreign objects inside
- Restart the printer
Persistent errors may indicate a faulty scanner motor or cable.
E-10 / E-11 – Ink Supply or Print Head Error
Description: The printer cannot detect ink correctly or has a communication issue with the print head.
How to fix:
- Check ink levels and refill if necessary
- Ensure ink tanks are filled correctly and caps are closed
- Run print head cleaning from the printer menu or driver
E-12 / E-13 / E-14 – Maintenance Box Error
Description: The maintenance box (waste ink container) is full or not installed correctly. This is common on high-volume printers like the ET-5850.
How to fix:
- Remove and reinstall the maintenance box properly
- Replace the maintenance box if it is full
Note: Resetting the waste ink counter without replacing the box is not recommended.
W-01 / W-02 / W-03 – Paper Feed Warning
Description: Paper feed issues such as paper jams, incorrect paper size, or multiple sheets being fed.
How to fix:
- Remove all jammed paper from the front and rear paths
- Reload paper correctly and align it in the tray
- Avoid overloading the paper tray
- Clean the paper feed rollers if necessary
0x97 – System Hardware Error
Description: A critical internal hardware error, often related to the mainboard, print head, or mechanical components.
How to fix:
- Turn off the printer and unplug it for at least 10 minutes
- Restart the printer
If the error remains, professional servicing is required.
0xEA – Print Head Movement Error
Description: The print head cannot move freely due to an obstruction.
How to fix:
- Turn off and unplug the printer
- Open the cover and inspect the print head path
- Carefully remove any foreign objects
Do not force the print head to move while the printer is powered on.
0x69 / 0x9A / 0x9B – Motor or Mechanical Error
Description: Errors related to motor failure, gears, or internal mechanical components.
How to fix:
- Restart the printer
- Check for unusual noises during startup
In most cases, these errors require professional repair.
The Epson EcoTank Pro ET-5850 is designed for reliability and high-volume printing, but error codes may still occur due to paper handling, ink maintenance, or mechanical wear.
Understanding these common error codes helps users troubleshoot problems quickly and determine when maintenance or professional service is necessary.