Brother International DCP-8155DN Advanced User's Guide - English - Page 33

Cleaning the drum unit, b

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Note Be sure to return the tab to the home position (a) (1). If you do not, printed pages may have a vertical stripe. e Put the drum unit and toner cartridge assembly back into the machine. f Close the front cover of the machine. Routine maintenance Cleaning the drum unit A If your printout has black or white dots or other repeating marks at 3.7 in. (94 mm) intervals, the drum may have foreign material, such as glue from a label stuck on the drum surface. Follow the steps below to solve the problem. a Make sure that the machine is in the Ready mode. Press Menu, 6, 6, then press Start to A print the drum dot check sheet. 66.Drum Dot Print Printing b Leave the machine turned on for 10 minutes for the internal fan to cool the extremely hot parts inside the machine. c After the machine has cooled down, turn off the machine's power switch. d Press the front cover release button and then open the front cover. 29

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Routine maintenance
29
A
Note
Be sure to return the tab to the home
position (
a
) (1). If you do not, printed
pages may have a vertical stripe.
e
Put the drum unit and toner cartridge
assembly back into the machine.
f
Close the front cover of the machine.
Cleaning the drum unit
A
If your printout has black or white dots or
other repeating marks at 3.7 in. (94 mm)
intervals, the drum may have foreign
material, such as glue from a label stuck on
the drum surface. Follow the steps below to
solve the problem.
a
Make sure that the machine is in the
Ready mode.
Press
Menu
,
6
,
6
, then press
Start
to
print the drum dot check sheet.
66.Drum Dot Print
Printing
b
Leave the machine turned on for
10 minutes for the internal fan to cool
the extremely hot parts inside the
machine.
c
After the machine has cooled down, turn
off the machine's power switch.
d
Press the front cover release button and
then open the front cover.