Brother Hl 4150cdn User Manual

							Routine Maintenance 135
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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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							139
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 140.)
 Paper handling
(See  Paper handling  on page 144 and  Paper jams and how to clear them  on page 145.)
 Other problems
(See  Other problems  on page 166.)
Pages are printed, but there are problems with:
6
 Print quality
(See  Improving the print quality  on page 159.)
 Printout is incorrect
(See  Solving print problems  on page 165.)
Troubleshooting6
 
						

							Troubleshooting 140
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 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 Error The 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 101.)
 Put in a new belt unit. (See Replacing the belt unit  
on page 105.)
 Put in a waste toner box. (See Replacing the 
waste toner box  on page 109.)
 If the problem continues, call your dealer or 
Brother Customer Service.
Cartridge Error The 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.
Condensation One 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 Open The 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 85.)
 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 86.)
Drum Error The corona wire on the drum unit 
needs to be cleaned. Clean the corona wires. (See 
Cleaning the corona 
wires  on page 120.)
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 Error The 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 XXX The 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 145.
Low Temperature The room temperature is too low for 
the machine to operate. Increase the room temperature to allow the machine 
to operate.
No Belt Unit The belt unit is not installed 
correctly. Re-install the belt unit. (See 
Belt unit on page 105.)
No Drum Unit The drum unit is not installed 
correctly. Re-install the drum unit. (See 
Drum unit 
on page 100.)
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 130.)
No Toner The 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 95) 
No Tray The 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 Toner The waste toner box is not installed 
correctly. Re-install the Waste Toner Box. (See 
Waste toner 
box  on page 109.)
Out of Memory The 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 86.)
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 105.)
 If the problem continues, call your dealer or 
Brother Customer Service.
Short Paper The 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 Error The 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 DX The 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 Mismatch The 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 Paper The 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 Error One 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
 
						

							Troubleshooting 143
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Maintenance messages6
Tray 2 ErrorThe optional lower tray is not 
installed correctly. Re-install the optional lower tray.
Unusable Device An 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 88.
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
 
						

							Troubleshooting 144
6
Paper handling6
First, make sure that you are using paper that meets Brother recommended paper specifications. (See Type 
and size of paper  on page 2.)
ProblemRecommendation
The machine does not feed 
paper. 
If there is paper in the paper tray, make sure it is straight. If the paper is curled, 
straighten it before printing. Sometimes it is helpful to remove the paper. Turn the 
stack over and put it back in the paper tray. If the paper continues to curl, replace 
the paper.
 Reduce the amount of paper in the paper tray, and then try again.
 Make sure that manual feed mode is not chosen in the printer driver.
 Clean the paper pick-up roller. See  Cleaning the paper pick-up roller 
on page 130.
The machine does not feed 
paper from the MP tray. 
Make sure that you have chosen  MP tray in Paper Source  of the printer driver.
The machine does not feed 
envelopes. 
The machine can feed envelopes from the MP tray. You must set up your 
application to print on the size of envelopes you are using. This is usually done in 
the page setup or document setup menu of your software. (See your application 
manual.)
A paper jam has occurred. Clear the jammed paper. (See  Paper jams and how to clear them  on page 145.)
The machine does not print.  Make sure that the cable is connected to the machine.
 Make sure the machine is powered on and that no error messages on the LCD.
 Make sure that you have chosen the correct printer driver.
When printing on normal paper, 
it creases. 
Change the printer driver setting in  Media Type to a thin setting.
 Open the back cover and check the fuser rollers for any jammed paper.
The paper slides off the top 
output tray. 
Lift up the support flap.