Epson Printer Error Code 0x90 -

Flashlight, lint-free cloth, white lithium grease or silicone lubricant (e.g., Super Lube 21030). Do not use WD-40—it evaporates and destroys plastic.

Issues with the Paper Width (PW) sensor, which helps the printer detect paper size. epson printer error code 0x90

Error 0x90 manifests slightly differently across Epson families. epson printer error code 0x90

If your pad is not swollen but the printer thinks it is (due to a counter overflow), you need a software reset. Error 0x90 can be triggered by a full waste ink counter on some models (especially WorkForce Pro). epson printer error code 0x90