Multi Page Feed Error Epson L3210 !!link!! -

Only if designed for printer rollers. Do not use automotive belt conditioner. Isopropyl alcohol (70%) is safest. Rubber rejuvenator can leave a sticky residue that attracts more dust.

The printer sensor is blocked or faulty. A small piece of paper is likely stuck near the paper exit sensor. Use compressed air to blow out the rear paper path. If that fails, a sensor replacement is needed. multi page feed error epson l3210

Try these fixes in order, starting with the simplest adjustments. Only if designed for printer rollers