Brother DCPJ525W Service Manual page 361

• Selector 5: Jam reduction paper feed mode
Setting this selector to "1" lowers the paper feeding speed when the recording paper passes
along the star wheels for reduction of jams.
• Selectors 6 through 8: Adjustment of print head drive voltage rank
This selector regulates the print head drive voltage rank for adjusting the ink drop amount.
If the black section printed on glossy paper is greenish or the printed ink does not dry
quickly, increase the print head drive voltage rank to decrease the ink drop amount; if it is
reddish, decrease the rank to increase the ink drop amount.
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