I had two errors: a1-4111 and a1-4112. I replaced both motors, but still same error. After close inspection I noticed an electromagentic coil that sometimes activates and sometimes doesnt. After helping it right before printing, I noticed that the errors never came back. I took it off the printer and noticed a little sponge affixed to a metal moveable "door" that had a spring attached to the bottom. That sponge compresses over time and moves that metal piece away from electromagnet hence its not able to pull it in to allow the spindle to rotate. I built up that sponge with some sticky paper to bring the metal closer to the magnet and voila...printer fixed.
Hi, it's Actuator Motor Error, check and ensure that all orange plastic cover has removed from the toners. If cover has been removed, probably you need to check the solenoid on the top after you have remove the right side cover. If still persist, you need to replace the main board.
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