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?
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.