Brother DCP 9045CDN User Manual

Troubleshooting and routine maintenance
123
C
CAUTION 
To prevent damage to the machine from 
static electricity, DO NOT touch the 
electrodes shown in the illustration.
 
 
 
Make sure that you use the drum unit 
handles when carrying it. DO NOT hold the 
sides of the drum unit.
 
 
 
To avoid print quality problems, DO NOT 
touch the shaded parts shown in the 
illustrations.
 
 
 
 
dUsing their coloured handles to lift them 
out, remove all four toner cartridges 
from the drum unit. 
 
 

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eUnpack the new drum unit and remove 
the protective cover.
 
fHolding the toner cartridges by their 
coloured handles, insert them one by 
one back into the drum units as shown. 
Make sure that you match the toner 
cartridge colour to the same colour label 
on the drum unit, and make sure that 
you fold down the toner cartridge 
handle(A) once the toner cartridge is in 
place. Repeat this for all the toner 
cartridges.
 
1 C - Cyan
2 M - Magenta
3 Y - Yellow
4 K - Black
2
1
 

Troubleshooting and routine maintenance
125
C
gPut the drum unit back in the machine as 
follows.
1Make sure that the grey lock 
lever (1) is in the up position and 
put the drum unit in the machine. 
Push down the grey lock lever (1).
 
Note
When you put the drum unit in the 
machine, match the green guides (1) of 
the drum unit handle to the green 
arrows (2) on both sides of the machine.
 
 
 

126
2Push the drum unit in until it stops. 
hClose the front cover of the machine. 
When you replace the drum unit with a 
new one, you need to reset the drum 
unit counter by completing the following 
steps:
iTurn on the machine’s power switch.
jPress Menu, 6, 6.
Only the parts counters that need to be 
reset appear in the menu.
 
66.Reset Menu
Drum
Selectabor OK
kPress a or b to choose Drum.
Press OK.
lPress 1 to reset the drum unit counter.
mPress Stop/Exit.
 

Troubleshooting and routine maintenance
127
C
Replacing the belt unitC
Order Number: BU-100CL
Change Parts Belt Unit messageC
When the belt unit runs out, the following 
message appears on the LCD. When you see 
this message, you must replace the belt unit:
 
Change Parts
Belt Unit
CAUTION 
DO NOT touch the surface of the belt unit. 
If you touch it, it could degrade print quality.
  
Damage caused by improper handling of 
the belt unit may void your warranty.
 
Replacing the belt unitC
aTurn off the...

128
cHold the green handle of the drum unit. 
Lift the drum unit up and then pull it out 
until it stops.
 
dRelease the grey lock lever (1) that is on 
the left side of the machine. Lift the front 
of the drum unit and pull the drum unit 
completely out of the machine using the 
green handles on the drum unit.
 
 

Troubleshooting and routine maintenance
129
C
CAUTION 
Make sure that you use the drum unit 
handles when carrying it. DO NOT hold the 
sides of the drum unit.
  
We recommend that you place the drum 
unit on a clean, flat surface with a piece of 
disposable paper underneath it in case you 
accidentally spill or scatter toner.
  
To prevent damage to the machine from 
static electricity, DO NOT touch the 
electrodes shown in the illustration.
 
 
eHold the green parts of the belt unit with 
both hands...

130
fUnpack the new belt unit, and remove 
the protective cover and paper.
 
gPut the new belt unit in the machine. 
Match the h mark on the belt unit to the 
g mark on the machine. Push down on 
the green area of the belt unit to lock it in 
place.
 
hPut the drum unit back in the machine as 
follows.
1Make sure that the grey lock 
lever (1) is in the up position and 
put the drum unit in the machine. 
Push down the grey lock lever (1).
 
 

Troubleshooting and routine maintenance
131
C
Note
When you put the drum unit in the 
machine, match the green guides (1) of 
the drum unit handle to the green 
arrows (2) on both sides of the machine.
 
 
2Push the drum unit in until it stops. 
iClose the front cover of the machine. 
When you replace the belt unit with a 
new one, you need to reset the belt unit 
counter by completing the following 
steps:
jTurn on the machine’s power switch.
 

132
kPress Menu, 6, 6.
Only the parts counters that need to be 
reset appear in the menu.
 
66.Reset Menu
Belt Unit
Selectabor OK
lPress a or b to choose Belt Unit.
Press OK.
mPress 1 to reset the belt unit counter.
nPress Stop/Exit.
Replacing the waste toner boxC
Order Number: WT-100CL
Change Parts Waste Toner Box messageC
After you have printed approximately 20,000 
images at 5% coverage for CMYK each, you 
must change the waste toner box. The actual 
number of printed pages will vary depending 
on the...