Increases the brightness of prints. This is used to correct prints that have a dark background. When a photocopier drum is worn but in good condition, applying the Lime-Jet Lightener extends the drum’s cycle and protects it from chipping and scratching. In addition the formula also blocks out harmful UV light allowing coated drums to be safely exposed to direct light. The new layer filters out harmful wavelengths only without lowering the coated drum’s sensitivity to the laser beam.