Brother Hl5370dw Owners Manual

							Routine Maintenance
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Cleaning the paper pick-up roller6
If the paper pick-up roller is stained, the printer may not feed paper. In that case, clean the paper pick-up roller 
as follows:
aTurn off the power switch and unplug the printer. 
bUnplug the power cord and interface cable from the printer. 
cPull the paper tray out of the printer. 
dDampen a soft cloth with lukewarm water and wipe the separator pad (1) in the paper tray with it.
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							Routine Maintenance
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eWipe the two paper pick-up rollers (1) inside the printer. 
fPut the paper tray back in the printer. 
gMake sure that you have turned off the power switch, and then connect the power cord and interface 
cable to the printer.
hPlug in the power cord and turn on the power switch of the printer.
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							Routine Maintenance
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Cleaning the corona wires6
Cleaning the corona wire6
If you have print quality problems, clean the corona wire as follows:
aPress the front cover release button and then open the front cover.
bTake out the drum unit and toner cartridge assembly. 
						

							Routine Maintenance
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6
IMPORTANT
 
We recommend that you put the drum unit and toner cartridge assembly on a piece of disposable paper or 
cloth in case you accidentally spill or scatter toner.
 To prevent damage to the printer caused by static electricity, DO NOT touch the electrodes shown in the 
illustration.
 
cClean the primary corona wire inside the drum unit by gently sliding the blue tab from right to left and left 
to right several times.
Note Be sure to return the tab to the home position (a) (1). If you do not, printed pages may have a vertical stripe.
 
dPut the drum unit and toner cartridge assembly back in the printer. Close the front cover.
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							115
7
7
Troubleshooting7
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/
.
Identifying your 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 cartridge 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 printer and the computer.
„The correct driver for the printer has been chosen and is installed.
„The computer is set up to connect to the correct printer port.
Printer does not print:
7
If you did not solve your problem with the above checks, identify your problem and then go to the page 
suggested below.
„Printer LED is blinking
See LEDs (Light Emitting Diodes) on page 76.
„Status Monitor Error Message appears
See Error messages in the Status Monitor on page 116.
„Paper handling
See Paper handling on page 119 and Paper jams and how to clear them on page 120.
„Other problems
See Other problems on page 137.
Pages are printed, but there are problems with:
7
„Print quality
See Improving the print quality on page 129.
„Printout is incorrect
See Solving print problems on page 136.
Troubleshooting7 
						

							Troubleshooting
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Error messages in the Status Monitor7
The Status Monitor will report problems with the printer. Take the necessary action by referring to the 
following table.
If you want to turn the status monitor on, see Status Monitor on page 47 (For Windows
® user) or Status 
Monitor on page 63(For Macintosh users).
Error messageAction
Cartridge Position 
Error„Put the drum unit assembly back in.
Drum End Soon„The drum unit is near the end of its life. Buy a new drum unit to replace the current one. 
See Replacing the drum unit on page 102.
Replace Drum„See Replacing the drum unit on page 102
Duplex Disabled„Close the back cover of the printer and put the duplex tray back in.
Drum Error„See Cleaning the corona wire on page 113.
Front Cover is Open„Close the front cover of the printer.
Fuser Cover is Open„Close the fuser cover located behind the back cover of the printer.
Incorrect paper size 
for auto DX„ Press Go or Job Cancel. Set the correct paper that you want to use, or load the same 
size paper that you selected in the current driver setting. The paper size you can use for 
automatic duplex printing is A4, Letter, Legal or Folio.
Jam MP Tray
Jam Tray 1
Jam Tray 2
Jam Tray 3
Jam Inside
Jam Rear
Jam Duplex„Clear the jammed paper from the indicated area. See Paper jams and how to clear them 
on page 120.
Memory Full„ Press Go to print the remaining data in the printer memory. Cancel the print job if you 
want to delete the remaining data in the printer memory. See Control panel buttons on 
page 84.
„ Reduce the complexity of your document or cut the print resolution.
„ Add more memory. See Installing extra memory on page 91.
No Toner„Open the front cover, then install the toner cartridge.  
						

							Troubleshooting
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No Paper
No Paper for Manual 
Feed
No Paper MP or Size 
Mismatch
No Paper in Tray 1 or 
Size Mismatch
No Paper in Tray 2 or 
Size Mismatch
No Paper in Tray 3 or 
Size Mismatch„The paper tray may be out of paper or not properly installed. If it is empty, put a new stack 
of paper in the paper tray and then press Go. If the problem is still unsolved, the paper 
pick-up roller may be stained. Clean the paper pick-up roller. See Cleaning the paper 
pick-up roller on page 111.
„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.
„Cut the amount of paper in the paper tray, and then try again.
„Make sure you use paper that meets Brother’s recommended paper specifications. See 
About paper on page 6.
„Load the same size paper that you selected in the current driver setting.
Print Overrun„Press Go to print the remaining data in the printer memory. Cancel the print job if you 
want to delete the remaining data in the printer memory. See Control panel buttons on 
page 84.
„If this does not clear the error, reduce the complexity of your document or cut the print 
resolution.
„Add more memory. See Installing extra memory on page 91.
„Change the following settings in the supplied Windows
® driver and try again. The best 
combination of these settings will vary depending on your document:
„Graphics mode
„TrueType mode
„Use Printer TrueType
® Fonts
1Choose the Advanced tab, click the Print Quality icon, and then choose Manual in Print Settings and 
click the Setting... button.
Service call error„Check the LED indication to identify the error. See Service call indications on page 82.
Storage FullThe RAMDISK size is set to 0 MB. Increase the RAMDISK size. Or there is no space to store 
jobs. Delete unnecessary macros or fonts.
Replace PF KitMPCall your dealer or Brother Customer Service for a replacement paper feeding kit (paper 
pick up roller and separation plate) for the MP tray.
Replace PF Kit1Call your dealer or Brother Customer Service for a replacement paper feeding kit (paper 
pick up roller and separation plate) for Tray 1.
Replace PF Kit2Call your dealer or Brother Customer Service for a replacement paper feeding kit (paper 
pick up roller and separation plate) for Tray 2.
Replace PF Kit3Call your dealer or Brother Customer Service for a replacement paper feeding kit (paper 
pick up roller and separation plate) for Tray 3.
Replace Fuser UnitCall your dealer or Brother Customer Service for a replacement fuser unit.
Replace Laser UnitCall your dealer or Brother Customer Service for a replacement laser unit.
Replace Toner„See Replacing the toner cartridge on page 95.
Toner Low„Buy a new toner cartridge and have it ready for when the Replace Toner status is 
indicated.
Error messageAction 
						

							Troubleshooting
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Error message printout7
The printer can also report problems by printing an error message. Use the table below to identify and clear 
the error message. The default setting for the error message printout is off. If you want to turn the error 
message printout on, from the Advanced tab of the Windows
® printer driver click the Other Print Options..., 
and then choose Error Message Printout.
Error messageAction
Memory Full„Press Go to print the remaining data in the printer memory. Cancel the print job 
if you want to delete the remaining data in the printer memory. See Control panel 
buttons on page 84.
„Reduce the complexity of your document or cut the print resolution.
„Add more memory. See Installing extra memory on page 91.
Print Overrun„Press Go to print the remaining data in the printer memory. Cancel the print job 
if you want to delete the remaining data in the printer memory. See Control panel 
buttons on page 84.
„If this does not clear the error, reduce the complexity of your document or cut the 
print resolution.
„Add more memory. See Installing extra memory on page 91.
„Set page protection to Auto by using the supplied Windows
® driver or the control 
panel.
„Change the following settings in the supplied Windows
® driver and try again. The 
best combination of these settings will vary depending on your document:
„Graphics
1
„TrueType Mode1
„Use Printer TrueType® Fonts
1Choose the Basic tab, choose Manual in Print Settings, and then click Manual Settings....
Resolution Adapted„Reduce the complexity of your document before you print to prevent automatic 
reduction in the resolution.  
						

							Troubleshooting
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7
Paper handling7
First, make sure that you are using paper that meets Brother recommended paper specifications. (See About 
paper on 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 itbefore 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.
„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 111.
The printer does not feed paper 
from the MP tray.„Fan the paper well and put it back in firmly.
„Make sure that you have chosen the MP Tray in the Paper Source of the printer 
driver.
The printer does not feed 
envelopes.„The printer can feed envelopes from the multi-purpose 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 120.)
The printer does not print. „Make sure that the cable is connected to the printer.
„Make sure the printer is powered on and that no error LEDs are lit on the printer 
control panel. 
„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.
The paper slides off the top 
output tray.„Pull out and lift up the output tray support flap.
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							Troubleshooting
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Paper jams and how to clear them7
Jam MP tray / Tray1 / Tray2 / Tray3 / Inside7
If a paper jam occurs inside the MP tray or paper tray, the printer will flash the Paper LED as shown below.
CAUTION 
After you have just used the printer, some internal parts of the printer will be extremely hot. To prevent 
injury, when you open the front cover or back cover (back output tray) of the printer, DO NOT touch the 
shaded parts shown in the illustration. If you do this, you may get burned.
 
Clear the jammed paper as follows.
If the jammed paper is removed completely by following the steps below, you can install the paper tray, and 
then close the front cover. The printer will resume printing automatically.
If the printer does not start printing automatically, press Go. If the printer still does not start printing, check 
that all the remaining jammed paper has been removed from the printer. Then try printing again.