Brother HL-5240 - Page 86

6. Routine Maintenance
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c Clean the primary corona wire inside the drum unit by gently sliding the blue tab from right to left and left
to right several times.
CAUTION
Be sure to return the tab to the home position (a) (1). If you do not, printed pages may have a vertical stripe.
d Put the drum unit and toner cartridge assembly back in the printer. Close the front cover.
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