Epson WorkForce WF-R8591
Troubleshooting. 2. Error is indicated during power-on sequence 4
No Ink pack error
Occurrence Condition
This error occurs when Ink pack not installed.
Major Occurrence Timing
At power-on
Major Troubleshooting
Install Ink pack
Cover open error
Occurrence Condition
This error occurs when Scanner Unit (Printer Cover) is open.
Major Occurrence Timing
• At power-on
• During printing
Major Troubleshooting
• Close Scanner Unit (Printer Cover) replacement
• Scanner Unit (Printer Cover) replacement
• Cover Open Sensor replacement
• Main Board replacement