Brother Hl 4050cdn User Manual

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Cleaning the drum unit6
If you have print quality problems, clean the drum unit as follows:
aPull the drum unit out from the printer and pull all the toner cartridge out from the drum unit.  See steps 
a to d in Replacing the drum uniton page 105-107.
bTurn the drum unit over by holding the green handle. Make sure that the drum unit gears (1) are on the 
left hand side.
 
CAUTION 
We recommend that you place the drum unit on a clean, flat surface with a piece of...

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dTurn the drum unit gear toward you by hand while looking at the surface of the drum (1). 
eWhen you have found the mark on the drum that matches the print sample, wipe the surface of the drum 
gently with a cotton swab until the dust or paper powder on the surface comes off.
 
CAUTION 
DO NOT clean the surface of the photosensitive drum with a sharp object.
 
fTurn the drum unit gear toward you by hand to return it to the home position. The home position of each 
drum...

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Shipping the printer6
WARNING 
Once your printer has been set up and used, we do not recommend that it be moved or shipped unless 
absolutely necessary.
  
colour laser printers are complex printing devices. Moving the printer or shipping it without properly 
removing the installed supplies can result in SEVERE damage to the printer. As a result, your printer may 
not operate properly afterwards.
  
If the printer must be shipped, see Repacking Instructionson page 134...

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Repacking the printer6
WARNING 
This printer is heavy and weights roughly 29.1 kg (64.2 lb). To prevent injuries when moving or lifting this 
printer, make sure to use at least two people. Be careful not to pinch your fingers when you put the printer 
down.
 
aTurn off the power switch, and unplug all the cables from the printer. 
bPress the front cover release button and then open the front cover. 
cHold the green handle of the drum unit. Lift the drum unit up and then...

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dRelease the gray lock lever (1) that is on the left side of the printer. Pull the drum unit completely out 
using the green handles on the drum unit. 
 
CAUTION 
Hold the green handles of the drum unit when you carry 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 printer from...

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eHold the handle of the toner cartridge and pull it out of the drum unit. Repeat this for all the toner 
cartridges.
 
CAUTION 
To avoid print quality problems, DO NOT touch the shaded parts shown in the illustrations.
 
fAttach the original orange protective cover to each of the toner cartridges.  Place each of the toner 
cartridges into the plastic bag included in the carton.  Repeat steps e to f for all the toner cartridges. 
     
 

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gHold the green parts of the belt unit with both hands and lift the belt unit up, then pull it out. 
Note
We recommend that you put the belt unit on a clean, flat surface with a piece of disposable paper 
underneath it in case you accidentally spill or scatter toner.
 
hRemove the waste toner box from the printer using the green handle and place it into the plastic bag 
included in the carton.
 
iPut the belt unit back in the printer. Match the h mark on the belt unit to...

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jInsert the original orange packing material for locking the belt unit as shown in the illustration 
kPut a piece of paper (letter or A4) on the belt unit to prevent damage to the belt unit. 
lMake sure that the gray lock lever (1) is in the up position and put the drum unit in the printer. Push down 
the gray lock lever (1).
 
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mPush the drum unit in until it stops. 
nInsert the original orange packing material for the drum unit as shown in the illustration, and then close 
the front cover.
 
oTwo people should place the printer into the plastic bag and put the printer and the Styrofoam pieces 
into the carton. Match the front side of the printer to the “FRONT” mark (1) on the Styrofoam pieces. Put 
the Styrofoam piece for the toner cartridges (2) on top of the printer. 
 
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pPut the toner cartridges into the Styrofoam piece. 
qPut the two carton trays (1) (2) on the top and put the waste toner box in the tray placed towards on the 
front side of the printer (1).
 
rClose the carton and tape it shut.
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