Epson WorkForce WF-R8591
Troubleshooting. 1. The power-on sequence does not start
No Power
If the printer can turn on but turns off right away, the protection circuit may cut off the power due to an error such as a circuit failure.
Presumable Cause
• AC cable is unplugged.
• Power shuts down due to scanner error.
• Power Supply Unit damage
• Main Board damage
• Detection failure of PW Sensor occurred at power-on.
Major Troubleshooting
• Plug AC cable.
• Connect scanner harness.
• Power Supply Unit replacement
• Main Board replacement
LEDs on panel are flashing
Presumable Cause
• Wi-Fi connector is unplugged
• Wi-Fi Board damage
Major Troubleshooting
• Plug Wi-Fi connector
• Wi-Fi Board replacement