Brother DCP 8085DN User Manual

							78
 
White Spots on black text 
and graphics at 3.7 in. 
(94 mm) intervals
 
Black Spots at 3.7 in. 
(94 mm) intervals„Make ten copies of a blank, white sheet of paper. (See Making 
multiple copies on page 32.) If the problem is not solved, the drum 
unit may have glue from a label stuck on the OPC drum surface. 
Clean the drum unit. (See Cleaning the drum unit on page 98.)
„The drum unit may be damaged. Put in a new drum. (See Replacing 
the drum unit on page 103.)
 
Faint„Check the machine’s environment. Conditions such as humidity, high 
temperatures, and so on, may cause this print fault. (See Choosing a 
location on page 52.)
„If the whole page is too light, Toner Save mode may be on. Turn off 
Toner Save mode in the machine menu settings or Toner Save 
mode in the printer Properties of the driver. (See Toner Save 
on page 24 or Advanced tab in the Software User’s Guide on the CD-
ROM.)
„Clean the scanner window and the corona wire of the drum unit. (See 
Cleaning the laser scanner window on page 95 and Cleaning the 
corona wire on page 96.)
„The toner cartridge may be damaged. Put in a new toner cartridge. 
(See Replacing a toner cartridge on page 101.)
„The drum unit may be damaged. Put in a new drum unit. (See 
Replacing the drum unit on page 103.)
Examples of poor print 
qualityRecommendation
ABCDEFGH
abcdefghijk
ABCD
abcde
01234
CDEF
d
efg
BC
b
cd
23
 
						

							Troubleshooting and routine maintenance
79
C
 
Toner specks„Make sure that you use paper that meets our specifications. Rough-
surfaced paper may cause the problem. (See Acceptable paper and 
other print media on page 14.)
„Clean the corona wire and the drum unit. (See Cleaning the corona 
wire on page 96 and Cleaning the drum unit on page 98.)
„The drum unit may be damaged. Put in a new drum unit. (See 
Replacing the drum unit on page 103.)
„The fuser unit may be contaminated. Call Brother Customer Service 
at 1-877-BROTHER (1-877-276-8437) (in USA) 
or 1-877-BROTHER (in Canada).
 
All black„Clean the corona wire inside the drum unit by sliding the blue tab. Be 
sure to return the blue tab to the home position (a). (See Cleaning the 
corona wire on page 96.)
„The drum unit may be damaged. Put in a new drum unit. (See 
Replacing the drum unit on page 103.)
„The fuser unit may be contaminated. Call Brother Customer Service 
at 1-877-BROTHER (1-877-276-8437) (in USA) 
or 1-877-BROTHER (in Canada).
 
Black toner marks across the 
page„Make sure that you use paper that meets our specifications. (See 
Acceptable paper and other print media on page 14.)
„If you use label sheets for laser machines, the glue from the sheets 
may sometimes stick to the OPC drum surface. Clean the drum unit. 
(See Cleaning the drum unit on page 98.)
„Do not use paper that has clips or staples because they will scratch 
the surface of the drum.
„If the unpacked drum unit is in direct sunlight or room light, the unit 
may be damaged.
„The toner cartridge may be damaged. Put in a new toner cartridge. 
(See Replacing a toner cartridge on page 101.)
„The drum unit may be damaged. Put in a new drum unit. (See 
Replacing the drum unit on page 103.)
 
Line across the page„Clean the laser scanner window and the corona wire inside the drum 
unit. (See Cleaning the laser scanner window on page 95 and 
Cleaning the corona wire on page 96.)
„The drum unit may be damaged. Put in a new drum unit. (See 
Replacing the drum unit on page 103.)
Examples of poor print 
qualityRecommendation
ABCDEFGH
abcdefghijk
ABCD
abcde
01234
ABCDEFGH
abcdefghijk
ABCD
abcde
01234
ABCDEFGH
abcdefghijk
ABCD
abcde
01234
 
						

							80
 
Black lines down the page
Printed pages have toner 
stains down the page„Clean the corona wire inside the drum unit by sliding the blue tab. Be 
sure to return the blue tab to the home position (a). (See Cleaning the 
corona wire on page 96.)
„The toner cartridge may be damaged. Put in a new toner cartridge. 
(See Replacing a toner cartridge on page 101.)
„The drum unit may be damaged. Put in a new drum unit. (See 
Replacing the drum unit on page 103.)
„The fuser unit may be smudged. Call Brother Customer Service 
at 1-877-BROTHER (1-877-276-8437) (in USA) 
or 1-877-BROTHER (in Canada).
 
Poor fixing„Open the back cover and make sure that the two blue levers on the 
left and right hand sides are in the up position.
 
„Choose Improve Toner Fixing mode in the printer driver. (See Other 
Print Options (for Windows®) or Print Settings (for Macintosh®) in the 
Software User’s Guide on the CD-ROM.)
If this selection does not provide enough improvement, choose 
Thicker Paper in Media Type settings.
Examples of poor print 
qualityRecommendation
ABCDEFGH
abcdefghijk
ABCD
abcde
01234
ABCDEFGH
abcdefghijk
ABCD
abcde
01234
 
						

							Troubleshooting and routine maintenance
81
C
Error and maintenance messagesC
As with any sophisticated office product, errors may occur and consumable items may need to be 
replaced. If this happens, your machine identifies the error or required routine maintenance and 
shows the appropriate message. The most common error and maintenance messages are shown 
below.
You can correct most errors and perform routine maintenance by yourself. If you need more help, 
the Brother Solutions Center offers the latest FAQs and troubleshooting tips.
Visit us at http://solutions.brother.com/
.
Error MessageCauseAction
Access ErrorThe device is removed from the 
USB direct interface while the 
data is processing.Press Stop/Exit. Reinsert the device and try 
to print with Direct Print.
Cartridge ErrorThe toner cartridge is not installed 
properly.Pull out the drum unit, take out the toner 
cartridge that is indicated on the LCD, and 
put it back into the drum unit again.
Cooling Down
Wait for a whileThe temperature of the drum unit 
or toner cartridge is too hot. The 
machine will pause its current 
print job and go into cooling down 
mode. During the cooling down 
mode, you will hear the cooling 
fan running while the LCD shows 
Cooling Down, and 
Wait for a while.Make sure that you can hear the fan in the 
machine spinning and that the exhaust outlet 
is not blocked by something.
If the fan is spinning, remove any obstacles 
that surround the exhaust outlet, and then 
leave the machine turned on but do not use 
it for several minutes.
If the fan is not spinning, disconnect the 
machine from the power for several minutes, 
then reconnect it.
Cover is OpenThe front cover is not closed 
completely.Close the front cover of the machine.
Cover is OpenThe fuser cover is not closed 
completely or paper was jammed 
in the back of the machine when 
you turned on the power.„Close the fuser cover of the machine.
„Make sure paper is not jammed inside 
the back of the machine, and then close 
the fuser cover and press Start.
Document JamThe document was not inserted 
or fed properly, or the document 
scanned from the ADF was too 
long.See Document jams on page 85 or Using the 
automatic document feeder (ADF) 
on page 20.
Drum ErrorThe corona wire on the drum unit 
needs to be cleaned.Clean the corona wire on the drum unit. (See 
Cleaning the corona wire on page 96.)
The drum unit has reached the 
end of its life.Replace the drum unit. (See Replacing the 
drum unit on page 103.)
Duplex DisabledThe duplex tray is not installed 
properly.Remove the duplex tray and install it again.
 
						

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Fuser ErrorThe temperature of fuser unit 
does not rise at a specified 
temperature within 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 DuplexThe paper is jammed in the 
duplex tray.(See Paper jams on page 86.)
Jam RearThe paper is jammed in the back 
of the machine.(See Paper jams on page 86.)
Jam InsideThe paper is jammed inside the 
machine.(See Paper jams on page 86.)
Jam MP TrayThe paper is jammed in the MP 
tray of the machine.(See Paper jams on page 86.)
JamTray1
JamTray2The paper is jammed in the paper 
tray of the machine.(See Paper jams on page 86.)
No PaperThe machine is out of paper or 
paper is not properly loaded in the 
paper tray.Do one of the following:
„Refill the paper in the paper tray or MP 
tray.
„Remove the paper and load it again.
No TonerThe toner cartridge or the drum 
unit and toner cartridge assembly 
is not installed properly.Re-install the toner cartridge or the drum unit 
and toner cartridge assembly.
No TrayThe paper tray is not completely 
closed.Close the paper tray properly.
Out of MemoryThe machine’s memory is full.Copy operation in progress
Do one of the following:
„Press Start to copy the scanned pages.
„Press Stop/Exit and wait until the other 
operations in progress finish, and then try 
again.
„Clear the data from the memory. (See 
Out of memory message on page 40.)
Print operation in process
Reduce print resolution. (See Advanced tab 
in the Software User’s Guide on the CD-
ROM.)
Print Unable XXThe machine has a mechanical 
problem.Disconnect the machine from the power for 
several minutes, then reconnect it.
Protected DeviceThe protect switch of the USB 
Flash memory drive is on.Turn off the protect switch of the USB Flash 
memory drive.
Error MessageCauseAction
 
						

							Troubleshooting and routine maintenance
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Replace Parts
DrumThe drum unit is the end of its life. Replace  the drum unit.
(See Replacing the drum unit on page 103.)
The drum unit counter was not 
reset when a new drum was 
installed.1 Open the front cover, and then press 
Clear/Back.
2 Press 1 to reset.
Replace Parts
Fuser UnitIt is time to replace the fuser unit. Call Brother Customer Service to replace the 
fuser unit.
1-877-BROTHER (1-877-276-8437) (in USA)
1-877-BROTHER (in Canada)
Replace Parts
Laser UnitIt is time to replace the laser unit. Call Brother Customer Service to replace the 
laser unit.
1-877-BROTHER (1-877-276-8437) (in USA)
1-877-BROTHER (in Canada)
Replace Parts
PF Kit MPIt is time to replace the paper 
feeding kit for the MP tray.Call Brother Customer Service to replace the 
PF Kit MP.
1-877-BROTHER (1-877-276-8437) (in USA)
1-877-BROTHER (in Canada)
Replace Parts
PF Kit 1It is time to replace the paper 
feeding kit for Tray 1.Call Brother Customer Service to replace the 
PF Kit 1.
1-877-BROTHER (1-877-276-8437) (in USA)
1-877-BROTHER (in Canada)
Replace Parts
PF Kit 2It is time to replace the paper 
feeding kit for Tray 2.Call Brother Customer Service to replace the 
PF Kit 2.
1-877-BROTHER (1-877-276-8437) (in USA)
1-877-BROTHER (in Canada)
Rename the FileThere is already a file on the USB 
Flash memory drive with the 
same name as the file you are 
trying to save.Change the file name of the file on the USB 
Flash memory drive or the file you are trying 
to save.
Replace TonerThe toner cartridge is at the end 
of its life and printing is not 
possible.Replace the toner cartridge with a new one. 
(See Replacing a toner cartridge 
on page 101.)
Scan Unable XXThe machine has a mechanical 
problem.Disconnect the machine from the power for 
several minutes, then reconnect it.
Document is too long for duplex 
scanning.Press Stop/Exit. Use the appropriate size of 
paper for duplex scanning. (See Scan 
on page 129.)
Error MessageCauseAction
 
						

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Scanner LockedThe  scanner lock is  locked. Open the document cover, and then release 
the scanner lock lever.
 
Press Stop/Exit.
Toner LowIf the LCD shows Toner Low, 
you can still print; however, the 
machine is telling you that the 
toner cartridge is near the end of 
its life.Order a new toner cartridge now.
Too Many FilesThere are too many files stored 
on the USB Flash memory drive.Reduce the number of files stored on the 
USB Flash memory drive.
Too Many TraysMore than one optional tray is 
installed.The maximum number of optional trays is 
one. Remove any additional trays.
Unusable DeviceAn incompatible or broken device 
has been connected to the USB 
direct interface.Remove the USB Flash memory drive from 
the USB direct interface.
Error MessageCauseAction
 
						

							Troubleshooting and routine maintenance
85
C
Document jamsC
If the document is jammed, follow the steps 
below.
IMPORTANT
After removing a jammed document, 
check that no paper scraps are left in the 
machine that could cause another jam.
 
Document is jammed in the top of the 
ADF unit
C
aTake out any paper from the ADF that is 
not jammed.
bOpen the ADF cover.
cPull the jammed document out to the 
left.
 
dClose the ADF cover.
ePress Stop/Exit.
Document is jammed under the 
document cover
C
aTake out any paper from the ADF that is 
not jammed.
bLift the document cover.
cPull the jammed document out to the 
right.
 
dClose the document cover.
ePress Stop/Exit.
Document is jammed at the output 
tray
C
aTake out any paper from the ADF that is 
not jammed.
bPull the jammed document out to the 
right.
 
cPress Stop/Exit.
 
						

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Document is jammed in the duplex 
slot
C
aTake out any paper from the ADF that is 
not jammed.
bPull the jammed document out to the 
right.
 
cPress Stop/Exit.
Paper jamsC
To clear paper jams, please follow the steps 
in this section.
IMPORTANT
Please confirm that you have installed 
both a toner cartridge and a drum unit in 
the machine. If you have not installed a 
drum unit or have installed the drum unit 
improperly, then this may cause a paper 
jam in your Brother machine.
 
Note
If the error message remains, open and 
close the front cover and fuser cover firmly 
to reset the machine.
 
CAUTION 
HOT SURFACE
After you have just used the machine, some 
internal parts of the machine will be 
extremely hot. To prevent injury, when you 
open the front or back cover (back output 
tray) of the machine DO NOT touch the 
shaded parts shown in the illustration. If you 
do this you may get burned.
 
 
 
						

							Troubleshooting and routine maintenance
87
C
IMPORTANT
To prevent damage to the machine 
caused by static electricity, DO NOT touch 
the electrodes shown in the illustration.
 
Note
The LCD names for the paper trays are as 
follows:
• Standard paper tray: Tray 1
• Optional lower tray: Tray 2
• Multi-purpose tray: MP Tray
 
 
Paper is jammed in the MP trayC
If the LCD shows Jam MP Tray, follow 
these steps:
aRemove the paper from the MP tray.
bRemove any jammed paper from in and 
around the MP tray.
 
cClose the MP tray. Then open the front 
cover and close it to reset the machine.
Open the MP tray again.
dFan the paper stack, and then put it back 
in the MP tray.
 
eWhen loading paper in the MP tray, 
make sure that the paper stays under 
the maximum paper height guides on 
both sides of the tray.