Brother HL-7050 Series User Manual page 167

4
Clean the Primary Corona Wire inside the drum unit by gently
sliding the blue tab from right to left several times.
Make sure to return the tab to the Home position. If you do
not, printed pages will have a black vertical stripe.
5
Put the drum unit assembly back in the printer.
6
Close the top cover.
7
Plug the printer power cord back in, and then turn the printer
power switch back on.
5 - 18 ROUTINE MAINTENANCE
Figure 5-24
Home Position
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