Brother Hl4570cdw Owners Manual

Routine Maintenance 
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5
fRemove two pieces of orange packing material and discard them. 
Note
This step is only necessary when you are replacing the waste toner box for the first time, and is not 
required for the replacement waste toner box. The orange packing pieces are installed at the factory to 
protect your machine during shipment. 
 
gRemove the waste toner box from the machine using the green handle, and then put it in a plastic bag 
and seal the bag completely.
 
IMPORTANT
Handle the waste...

Routine Maintenance 
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5
hSlide the belt unit back into the machine. Make sure the belt unit is level and fits firmly into place. 
iInstall orange packing materials to the drum unit as follows:
Install one orange packing material (1) to secure the toner cartridges to the drum unit on the left and 
right sides respectively.
Install one orange packing material (2) to the drums side surface on the left side only, as viewed from 
the front.
Install one orange packing material (3) to the drums side...

Routine Maintenance 
137
5
jPut a piece of paper (A4 or letter) on the belt unit to prevent damage to the belt unit. 
kMake sure the green lock lever (1) is in the release position as shown in the illustration. 
lMatch 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.
 
1
1
2 

Routine Maintenance 
138
5
mTurn the green lock lever (1) clockwise to the lock position. 
nPush the drum unit in until it stops. 
oClose the front cover of the machine.
pPut the Styrofoam piece (1) into the carton. Then put the waste toner box in the Styrofoam piece. 
1
1 

Routine Maintenance 
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5
qWrap the machine with a plastic bag. Put the machine on the Styrofoam piece (1) and the Styrofoam 
piece (2) on the top of the machine. Match the front side of the machine to the “FRONT” mark on each 
Styrofoam piece.
 
rPut the power cord into the Styrofoam piece (2). 
sClose the carton and tape it shut.
FRONT FRONT
2
1
2
1 

140
6
6
You can correct most problems by yourself. If you need additional help, the Brother Solutions Center offers 
the latest FAQs and troubleshooting tips. Visit us at http://solutions.brother.com/
.
(HL-4150CDN) In USA:  Please go to the Brother Solutions Center at http://solutions.brother.com/
 and click 
Manuals on your model page to download the other manuals.
Identifying your problem6
First, check the following:6
The AC power cord is connected properly and the machine is turned on.
All of the...

Troubleshooting 
141
6
LCD messages6
As with any sophisticated office product, errors may occur and consumable items may need to be replaced. 
If this happens, your machine automatically stops printing, diagnoses the problem, and displays the resulting 
message on the LCD to alert you. The most common error and maintenance messages are shown below.
You can clear most errors and routine maintenance messages by yourself, referring to the following tables. 
If you need more help, the Brother Solutions...

Troubleshooting 
142
6
DIMM ErrorThe DIMM is not installed 
correctly.
The DIMM is broken.
The DIMM does not meet the 
required specifications.Turn off the machine and remove the DIMM.
Confirm the DIMM meets the required 
specifications. (For details, see SO-DIMM types 
on page 86.)
Re-install the DIMM correctly. Wait a few seconds, 
and then turn it on again.
If this error message appears again, replace the 
DIMM with a new one. (See Installing extra 
memory on page 87.)
Drum ErrorThe corona wire...

Troubleshooting 
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6
No PaperThe machine is out of paper or 
paper is not correctly loaded in the 
paper tray.Put the paper in the indicated paper tray. If the 
problem is not resolved, the paper pick-up roller may 
need to be cleaned.  Clean the paper pick-up roller. 
(See Cleaning the paper pick-up roller on page 131.)
No TonerThe toner cartridge for the color 
indicated on the second line of LCD 
is not installed correctly.Pull out the drum unit. Take out the toner cartridge for 
the color indicated...

Troubleshooting 
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6
Maintenance messages6
Tray 2 ErrorThe optional lower tray is not 
installed correctly.Re-install the optional lower tray.
Unusable DeviceAn incompatible or defective device 
has been connected to the USB 
direct interface.Remove the USB flash memory drive from the USB 
Direct Interface. 
For the maintenance messages, see Routine Maintenance on page 89.
Call service messages
Call service messageAction
Print Unable ##Turn off the machine. Wait a few seconds, then turn it on again. If...