Brother Hl4570cdw Owners Manual

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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 toner box carefully. If toner scatters on your hands or clothes, wipe or wash it off with 
cold water at once.
  
						

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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 protruding section on the right side.
 
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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.
 
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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. 
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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
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2
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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 protective parts have been removed.
The toner cartridges and drum unit are installed properly.
The front and back covers are fully closed.
Paper is inserted properly in the paper tray.
The interface cable is securely connected to the machine and the computer.
The correct driver for the machine has been chosen and is installed.
The computer is set up to connect to the correct machine port.
Machine does not print:
6
If you did not solve your problem with the above checks, identify your problem and then go to the page 
suggested below.
LCD Messages
(See LCD messages on page 141.)
Paper handling
(See Paper handling on page 145 and Paper jams and how to clear them on page 146.)
Other problems
(See Other problems on page 167.)
Pages are printed, but there are problems with:
6
Print quality
(See Improving the print quality on page 160.)
Printout is incorrect
(See Solving print problems on page 166.)
Troubleshooting6 
						

							Troubleshooting 
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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 Center offers the latest FAQs and troubleshooting tips.
Visit us at http://solutions.brother.com/
.
If you cannot clear the problem, call the dealer you bought the machine from or Brother Customer Service.
Note
The LCD names for the paper trays are as follows.
• Standard paper tray: Tray 1
• Multi-purpose tray: MP
• Optional lower tray unit: Tray 2
 
Error messages
Error messageCauseAction
Access ErrorThe device is removed from the 
USB direct interface while the data 
is processing.The USB device was removed while data was 
processing. Press Cancel. Reinsert the USB device 
and try to print with Direct Print. 
Calibrate

Calibration 
failed. See 
Troubleshooting 
chapter in Users 
Guide. Calibration failed.Turn off the machine. Wait a few seconds, then 
turn it on again.
Put in a new drum unit. (See Replacing the drum 
unit on page 102.)
Put in a new belt unit. (See Replacing the belt unit 
on page 106.)
Put in a waste toner box. (See Replacing the 
waste toner box on page 110.)
If the problem continues, call your dealer or 
Brother Customer Service.
Cartridge ErrorThe toner cartridge is not installed 
correctly.Pull out the drum unit. Take out the toner cartridge 
indicated on the LCD and then correctly re-install it in 
the drum unit. Put the drum unit back in the machine. 
If the problem continues, call your dealer or Brother 
customer Service.
CondensationOne of the issues that can cause 
this error is that condensation may 
form inside the machine after a 
room temperature change.Leave the machine turned on. Wait for 30 minutes 
with the front cover fully opened. Then turn off the 
machine and close the cover. Turn it on again.
Cover is OpenThe cover indicated on the LCD is 
not completely closed.Close the cover that is indicated on the second line of 
the LCD. 
						

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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 on the drum unit 
needs to be cleaned.Clean the corona wires. (See Cleaning the corona 
wires on page 121.)
Duplex Disabled

Close the Back 
Cover of the 
machine.The back cover of the machine is 
not closed completely.Close the back cover of the machine.
Duplex Disabled

Load XX paper and 
press Go.Although the size of paper in the 
paper tray matches the paper size 
that was selected from the control 
panel or printer driver, the machine 
has stopped printing when it 
encountered an additional, different 
size of paper in the tray. The LCD is 
telling you to load only the selected 
paper size.Make sure the paper tray contains only the size of 
paper you select in either the control panel or printer 
driver, then press Go.
The paper tray was pulled out 
before the machine completed 
printing on both sides of the paper.Re-install the paper tray and press Go.
Fuser ErrorThe temperature of the fuser unit 
does not rise to a specified 
temperature within the specified 
time.Turn the power switch off, wait a few seconds and 
then turn it on again. Leave the machine for 15 
minutes with the power on.
The fuser unit is too hot.
Jam XXXThe paper is jammed in the area 
shown on the LCD.Carefully pull out the jammed paper from the area 
shown in Paper jams and how to clear them 
on page 146.
Low TemperatureThe room temperature is too low for 
the machine to operate.Increase the room temperature to allow the machine 
to operate.
No Belt UnitThe belt unit is not installed 
correctly.Re-install the belt unit. (See Belt unit on page 106.)
No Drum UnitThe drum unit is not installed 
correctly.Re-install the drum unit. (See Drum unit 
on page 101.)
Error messages (continued)
Error messageCauseAction 
						

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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 on the second line of LCD, and 
then put it back into the drum unit. (See Toner 
cartridges on page 96) 
No TrayThe paper tray that is indicated on 
the second line of the LCD is not 
installed or not installed correctly.Re-install the paper tray that is indicated on the 
second line of the LCD.
No Waste TonerThe waste toner box is not installed 
correctly.Re-install the Waste Toner Box. (See Waste toner 
box on page 110.)
Out of MemoryThe machine’s memory is full. If the LCD shows this error message when you print 
the secure data, press Cancel and delete the 
previously stored data.
Except in the case of printing secure data, add more 
memory. (See Installing extra memory on page 87.)
Registration

Registration 
failed. See 
Troubleshooting 
chapter in Users 
Guide.Registration failed.Turn off the machine. Wait a few seconds, then 
turn it on again.
Put in a new belt unit. (See Replacing the belt unit 
on page 106.)
If the problem continues, call your dealer or 
Brother Customer Service.
Short PaperThe length of the paper in the tray is 
too short for the machine to deliver it 
to the Face-down output tray.Open the back cover (back output tray) to let the 
printed paper out on the back output tray. Remove 
the printed pages and then press Go.
Size ErrorThe paper size defined in the printer 
driver is not supported by the 
defined tray.Choose a paper size which is supported by each tray. 
(See Type and size of paper on page 2.)
Size Error DXThe paper size defined in the printer 
driver is not usable for the automatic 
duplex printing.Press Cancel. Choose a paper size which is 
supported by the duplex tray. (See Type and size of 
paper on page 2.)
Size MismatchThe paper in the indicated tray is not 
the correct size.Put the same size paper in the paper tray that is 
selected in the printer driver, and then press Go, or 
select the size of paper you set in the indicated paper 
tray.
Small PaperThe paper size specified in the 
printer driver is too small for the 
machine to deliver it to the 
Face-down output tray.Open the back cover (back output tray) to let the 
printed paper out on the back output tray and then 
press Go.
Toner ErrorOne or more toner cartridges are 
not installed correctly.Pull out the drum unit. Take out all the toner 
cartridges, and then put them back into the drum unit.
Error messages (continued)
Error messageCauseAction 
						

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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 this does not clear 
the error, call your dealer or a Brother Customer Service.
Error messages (continued)
Error messageCauseAction