New answers tagged maintenance
Look in your printer settings and see if there is a selection to shake/vibrate the mirror, which will knock loose any accumulated dust from the mirror and sensor. Mine does it every time I turn it on.
No. It's fine; I can't imagine why there might be a problem. Automatic sensor cleaning generally works by shaking the sensor a small amount at high frequency. This doesn't get anywhere near the lens (at least, not more than the sensor already is). I guess it's mildly possible that some dust might end up transmitted to the rear element of the lens, but that's ...
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