I assume you mean the frequency at which the head moves back and forth. If this happens only at a certain frequency, then it sounds as if that is caused by resonance - which happens when the excitation (in this case, the head moving back and forth) has a similar frequency to the object's (the printer's) natural frequency.
uv light causes.... excitation of electrons of atoms.... leading two phenomenon absorption frequency emmision frequency... read about the principles involoved u will get to know urself.....!!
A variable that causes change in the output of a system. In a RC circuit, for example, the input V is the excitation variable
excitation
The major causes of loss of excitation on generators are due to an open circuit or a short circuit in the field winding. This may also be caused by a breakdown of the insulation system.
excitation
sdrg
Gene mutation causes the phenotype frequency in a population to change after each generation.
A variable that causes change in the output of a system. In a RC circuit, for example, the input V is the excitation variable
If you subtract from the carrier frequency the frequency of the tone that modulates it, then filter out the carrier frequency, then you have a lower sideband frequency. If you add to the carrier frequency, filter out the carrier, then you have an upper sideband frequency.
Its frequency
suppl Frequency