Brother Hl 4070cdw User Manual

Rout i ne  Ma i nt e na nce
142
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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.
12
 

143
7
7
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
.
Identify ing y our problem7
First, check the following:7

The AC power cord is connected properly and the printer 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...

Troubleshooting
144
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LCD messages7
If any problems occur, the printer automatically stops printing, diagnoses the problem, and displays the 
resulting message on the LCD to alert you. Take the appropriate action, referring to the following tables. If 
you cannot clear the problem, call the dealer you bought the printer from or Brother Customer Service.
Note
The LCD names for the paper trays are as follows.
 Standard paper tray: Tray1
 Multi-purpose tray: MP
 Optional Lower tray(HL-4050CDN /...

Troubleshooting
145
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Size MismatchPut the same size paper in the paper tray or MP tray that is selected in the printer driver, 
and then press Go, or select the size of paper you set in the Tray Size setting from the 
control panel.
Toner Life EndIt is time to replace the toner cartridge. (See Replacing a toner cartridgeon page 99.)
Tray2 ErrorTake out Tray2 and push it back in firmly.
Unusable DeviceRemove the USB flash memory drive from USB Direct Interface. 
Waste Toner FullIt is time to replace the...

Troubleshooting
146
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Waste Toner SoonThe waste toner box  is almost full. Be ready to replace the waste toner box . 
(See Replacing the waste toner 
boxon page 117.)
Call service messages
Call service messageA ction
Print Unable ##Turn off the printer. Wait a few seconds, then turn it on again. If this does not clear the 
problem, call your dealer or a Brother Customer Service.
Maintenance messages (continued)
Error messageMeaningA ction
 

Troubleshooting
147
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Paper handling7
First, make sure that you are using paper that meets Brother recommended paper specifications. (See About 
paperon page 6.)
ProblemRecommendation
The printer 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.

Reduce the amount of paper in the paper tray, and then try again....

Troubleshooting
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Paper jams and how to clear them7
If paper jams inside the printer, the printer will stop. One of the following LCD messages will appear to tell 
you where to find the jammed paper.
 

JamMPTray (1)
Paper jam in the MP tray. (See page 149.)

JamTray1 (2)
Paper jam in the standard paper tray (Tray 1). (See page 149.)

JamTray2 (3)
Paper jam in the lower tray (Tray 2). (See page 149.)

Jam Duplex (4)
Paper jam underneath the standard paper tray (Tray 1) or in the fuser unit. (See page...

Troubleshooting
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Jam MP Tray (paper jam in the MP tray)7
 
Jam MP Tray
If a paper jam occurs inside the MP tray, follow these steps:
aRemove the paper from the MP tray.
bRemove any jammed paper from in and around the MP Tray.
cFan the paper stack, and then put it back in the MP tray. 
dWhen loading paper in the MP tray, make sure that the paper stays under the maximum paper height 
guides on both sides of the tray.
eIf the printer does not automatically start printing, press Go.
Jam Tray 1 / Tray  2...

Troubleshooting
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aPull the paper tray completely out of the printer. 
bUse both hands to slowly pull out the jammed paper. 
cPut paper below the maximum paper mark. While pressing the green paper-guide release lever, slide 
the paper guides to fit the paper size. Make sure that the guides are firmly in the slots.
dPut the paper tray firmly back in the printer.
CAUTION 
DO NOT take out the standard paper tray while paper is feeding from a lower paper tray as this will cause 
a paper jam.
 
 

Troubleshooting
151
7 Jam Duplex (paper jam underneath the standard paper tray  (tray 1) or in the 
fuser unit) (HL-4040CDN /HL-4050CDN / HL-4070CDW only)7
 
Jam Duplex
If a paper jam occurs inside the duplex unit, follow these steps:
aPull the paper tray completely out of the printer and check inside the printer. 
bIf paper is not caught inside the printer, check underneath the paper tray. 
Note
Do not put the paper tray back in at this point.