Mis-registration of colors in multi-color print

Probable Cause	Possible Solution
Pad
Pads are not correctly assembled	Adjust pads so as they pick up images in the exact same place
Different shapes	Use equally shaped pads
Different hardnesses	Use pads of the same hardness
Cliché
Images are not in registration	Re-register artwork and etch new cliché
Ink
Image spreads more in one color than in others	Correct ink viscosity to prevent incorrect dot gain
Material
Parts collapse (e.g. plastic bottles)	Use a more supportive fixture
Other
Work piece fixtures are not stable enough	Control. Make new fixtures if necessary
Conveyor, feeder or turntable move inaccurately	Set carefully the devices movement
Fixtures are insufficiently attached	Fasten fixture screws