Epson Printer Error Code 0x90

A broken or dirty PW (paper width) sensor or a main logic board failure. Step-by-Step Troubleshooting Guide 1. Perform a Power Reset

Plug it back in and restart. If the error persists, move to manual inspections. A "stuck" carriage is a frequent culprit for 0x90 errors. SOLVED: Shows Error code: 0x9A - Epson WF-2540 - iFixit epson printer error code 0x90