Brother International HL-3170CDW Users Manual - English - Page 153
Cleaning the drum unit, Machine Info., Drum Dot Print
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Routine Maintenance Cleaning the drum unit 4 If your printout has white or black dots 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 the machine is in Ready mode. b Press a or b to choose Machine Info.. Press OK. c Press a or b to choose Drum Dot Print. Press OK to print the drum dot check sheet. d Press and hold down to turn the machine off. 4 e Open the top cover until it locks in the open position. f The color of printed dots is the color of the drum you should clean. Take out the toner cartridge and drum unit assembly of the color causing the problem. 147
Routine Maintenance
147
4
Cleaning the drum unit
4
If your printout has white or black dots 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 the machine is in Ready mode.
b
Press
a
or
b
to choose
Machine Info.
. Press
OK
.
c
Press
a
or
b
to choose
Drum Dot Print
. Press
OK
to print the drum dot check sheet.
d
Press and hold down
to turn the machine off.
e
Open the top cover until it locks in the open position.
f
The color of printed dots is the color of the drum you should clean. Take out the toner cartridge and drum
unit assembly of the color causing the problem.