Brother HL 1270N - Manual (Page 66)

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☛ 5.
Clean the primary corona wire inside the drum unit by gently sliding the tab to the right hand
end and left hand end several times.
Fig. 3-22 Cleaning the primary corona wire
☛ 6.
Return the tab to the Home position before reinstalling the drum unit assembly into the printer.
!
Caution
Be sure to position the tab at the Home position, or printed pages may have vertical stripes.
☛ 7.
Install the drum unit assembly into the printer.
See the section “How to replace the Drum unit” earlier in this Chapter.
☛ 8.
Close the front cover.
☛ 9.
Plug in the power cord and turn on the power switch.
Home Position ( ▲ )