Using a magnifying glass, a customer has noticed a series of yellow spots at intervals in the
background of copied pages from a laser MFD. Which of the fol owing is the explanation for this
phenomenon?
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A.
It is caused by too much yellow toner in the image unit.
B.
It is the coded serial number for anti-counterfeiting purposes.
C.
It is diffracted light contamination within the laser unit.
D.
The yellow charge value is set too high in the image unit.