Epson Printer Error Code 0x90 -

Electronic ghosts can cause false stall errors.

A: No. Vegetable oil goes rancid, becomes sticky, and will destroy the plastic bushings. Use white lithium or silicone grease only. epson printer error code 0x90

Before assuming your printer is a paperweight, try these expert-recommended fixes from sources like JustAnswer : Electronic ghosts can cause false stall errors

The rubber seal where the print head parks can become sticky with dried ink, "gluing" the print head to the station. When the printer tries to move the carriage, it rips away violently (or not at all), causing a stall. Use white lithium or silicone grease only

A clear plastic strip with microscopic black lines runs horizontally behind the carriage. This is the "encoder strip." If it gets smeared with oil, ink, or grease, the optical sensor cannot read the position, leading to Error 0x90.