Brother Hl 4150cdn User Manual

Routine Maintenance 95
5
Toner cartridges5
Order No. For the Order No. of toner cartridges, See Replacing consumable items on page 88.
A new standard toner cartridge can print approximately 2,500 pages (black) or approximately 1,500 pages 
(yellow, magenta, cyan)
1. 
For approximate life of high capacity toner cartridges, See  Replacing consumable items on page 88.
Note
• The toner cartridges that come supplied with the machine are standard toner cartridges. 
• The amount of toner used varies according...

Routine Maintenance 96
5
Replacing the toner cartridges5
Before you replace the toner cartridges, see Before replacing the consumable items on page 92.
aMake sure that the machine is turned on. Press the front cover release button and then open the front 
cover.
 
bHold the green handle of the drum unit. Pull the drum unit out until it stops. 
cHold the handle of the toner cartridge and slightly push it toward the machine to unlock it. Then pull it out 
of the drum unit. Repeat this for all the toner...

Routine Maintenance 97
5
dPush to release the latches of the corona wire cover (1), and then open the cover. 
eClean the corona wire inside the drum unit by gently sliding the green tab from left to right and right to 
left several times. 
 
Note
Be sure to return the tab to the home position (a) (1). If you do not, printed pages may have a vertical stripe.
 
1
1
 

Routine Maintenance 98
5
fClose the corona wire cover.  
gRepeat steps d to f to clean each of three remaining corona wires.
hUnpack the new toner cartridge. Gently shake it from side to side several times to distribute the toner 
evenly inside the cartridge.
 
iPull off the protective cover. 
 

Routine Maintenance 99
5
jHold the handle of the toner cartridge and slide the toner cartridge into the drum unit then slightly pull it 
toward you until you hear it click into place. Make sure that you match the toner cartridge color to the 
same color label on the drum unit. Repeat this for all the toner cartridges.
kPush the drum unit in until it stops. 
lClose the front cover of the machine.
Note
After replacing the toner cartridge, DO NOT turn off the machine power switch or open the front cover...

Routine Maintenance 100
5
Drum unit5
Order No. DR-310CL
A new drum unit can print approximately 25,000 A4 or Letter size single-sided pages.
Note
• There are many factors that determine the actual drum life, such as the temperature, humidity, type of paper, type of toner used and so on. Under ideal conditions, the average drum life is estimated at 
approximately 25,000 pages. The actual number of pages that your drum will print may be significantly 
less than this estimate. Because we have no control...

Routine Maintenance 101
5
Drum Stop message5
 
Drum Stop
We cannot guarantee the print quality. Please replace the drum unit with a new one. We recommend a 
genuine Brother drum unit be installed at this time.
After replacement, reset the drum counter by following the instructions included with the new drum unit.
Replacing the drum unit5
Before you replace the drum unit, see  Before replacing the consumable items  on page 92.
aMake sure that the machine is turned on. Press the front cover release button...

Routine Maintenance 102
5
cTurn the green lock lever (1) at the left of the machine counterclockwise to the release position. Holding 
the green handles of the drum unit, lift the front of the drum unit and remove it from the machine.
 
dHold the handle of the toner cartridge and slightly push it to unlock. Then pull it out of the drum unit. 
Repeat this for all the toner cartridges.
 
eUnpack the new drum unit and remove the protective cover. 
1
 

Routine Maintenance 103
5
fHold the handle of the toner cartridge and slide it into the appropriate colored section of the drum unit 
until it clicks into place.
gMake sure the green lock lever (1) is in the release position as shown in the illustration.  
hMatch the guide ends (2) of the drum unit to the c marks (1) on both sides of the machine, then gently 
slide the drum unit into the machine until it stops at the green lock lever.
 
 
 
C - Cyan
M - Magenta
Y - Yellow
K - Black
C
M
Y
K
1
1
2
 

Routine Maintenance 104
5
iTurn the green lock lever (1) clockwise to the lock position. 
jPush the drum unit in until it stops. 
kClose the front cover of the machine.
When you replace the drum unit with a new one, you need to reset the drum counter by completing the 
following steps:
aPress +  or - to choose  Machine Info. . Press OK.
bPress +  or - to choose  Reset Parts Life . Press OK.
cPress +  to choose  Drum Unit . Press OK.
dPress +  to reset the drum unit counter.
1