How to redistribute the toner.
When a toner cartridge is low on toner, faded or light areas may
appear. It is also possible that colored images may be printed
with incorrect colors due to flawed mixing of toner colors when
one of the colored toner cartridges is low on toner. The Smart
Panel program window appears on the computer telling you
which color cartridge is low on toner. Also, when the toner LED,
on the control panel, indicating each individual toner cartridge
according to its color, blinks, the toner cartridge is low.
The printer is able to continue to print using the current toner
cartridge until the Smart Panel program window appears on the
computer telling you to replace the cartridge.
You may be able to temporarily improve print quality by
redistributing the toner.