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Brother 7820 N Manual

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Page 91

Troubleshooting and routine maintenance11 - 6
11
Document jams 
If the document is jammed, follow the steps 
below.
Document is jammed in the top of the 
ADF unit
1Take out any paper from the ADF that is 
not jammed.
2Open the ADF cover.
3Pull the jammed document out to the 
left.
4Close the ADF cover.
Press Stop/Exit .
Document is jammed inside the ADF 
unit
1Take out any paper from the ADF that is 
not jammed.
2Lift the document cover.
3Pull the jammed document out to the 
right.
4Close the document...

Page 92

Chapter 11
11 - 7
Paper jams
To clear paper jams, please follow the steps 
in this section.
Paper is jammed inside the machine
1Pull the paper tray completely out of the 
machine.
2Pull the jammed paper out of the 
machine.
3Open the front cover. 
4Pull out the drum unit and toner 
cartridge assembly. The jammed paper 
may be pulled out with the toner 
cartridge and drum unit assembly, or 
this may release the paper so you can 
pull it out of the paper tray opening.
5If you can not remove the drum unit...

Page 93

Troubleshooting and routine maintenance11 - 8
11
7Put the drum unit and toner cartridge 
assembly back into the machine.
8Close the front cover.
9Put the paper tray in the machine.
Paper is jammed at the back of the 
machine
1Open the front cover. 
2Pull out the drum unit and toner 
cartridge assembly.
3Open the back cover. 
CAUTION
To prevent damage to the machine 
caused by static electricity, do not touch 
the electrodes shown in the following 
diagram. 

Page 94

Chapter 11
11 - 9
4Pull the tab toward you to open the rear 
chute cover. 
5Pull the jammed paper out of the fuser 
unit. If the jammed paper cannot be 
pulled out easily, push down the blue tab 
with one hand as you gently pull out the 
paper with the other hand.
6Close the back cover.
7Put the drum unit and toner cartridge 
assembly back into the machine.
8Close the front cover. 

Page 95

Troubleshooting and routine maintenance11 - 10
11
Paper is jammed inside the drum unit 
and toner cartridge assembly
1Open the front cover.
2Pull out the drum unit and toner 
cartridge assembly. 
3Hold down the lock lever on the left and 
pull the toner cartridge out of the drum 
unit. Take out the jammed paper if there 
is any inside the drum unit.
4Put the toner cartridge back into the 
drum unit until you hear it lock into place. 
If you put it in properly, the lock lever will 
lift automatically....

Page 96

Chapter 11
11 - 11
If you are having difficulty with your machine
If you think there is a problem with the way your faxes look, make a copy first. If the copy looks 
good, the problem is probably not your machine. Check the chart below and follow the 
troubleshooting tips.
The Brother Solutions Center offers the latest FAQs and troubleshooting tips.
Visit us at http://solutions.brother.com
.
DIFFICULTYSUGGESTIONS
Printing or Receiving Faxes
 Condensed print
 Horizontal streaks
 Top and bottom...

Page 97

Troubleshooting and routine maintenance11 - 12
11
Transmission Verification Report 
says ‘RESULT:NG’ or 
‘RESULT:ERROR’.There is probably temporary noise or static on the line. Try sending the fax again.
If you send a PC FAX message and get ‘RESULT:NG’ on the Transmission 
Verification Report, your machine may be out of memory. To gain extra memory, 
you can turn off Fax Storage (See 
Turning off Remote Fax Options on page 6-3), 
print fax messages in memory (See  Printing a fax from the memory on page...

Page 98

Chapter 11
11 - 13
Printer Difficulties 
The machine does not print. Please make sure:  The machine is plugged in and the power switch is turned On.
—OR —
 The toner cartridge and drum unit are installed properly. (See  Replacing the 
drum unit (DR-2000)  on page 11-28.)
— OR —
 The interface cable is securely connected between the machine and computer.  (See the Quick Setup Guide.) 
— OR —
 The correct printer driver has been installed and selected.
— OR —
 Check to see if the LCD is showing an...

Page 99

Troubleshooting and routine maintenance11 - 14
11
Scanning Difficulties
TWAIN errors appear while 
scanning.Make sure the Brother TWAIN driver is selected as the primary source. In 
PaperPort
®, click Scan in the File menu and select the Brother TWAIN driver.
Software Difficulties
Cannot install software or print. Run the  Repair MFL-Pro Suite program on the CD-ROM. This program will repair 
and reinstall the software.
Cannot perform ‘2 in 1’ or ‘4 in 1’ 
printing. Check that the paper size setting in...

Page 100

Chapter 11
11 - 15
Paper Handling Difficulties
The machine does not load paper.
The LCD shows  No Paper Fed or 
Paper Jam . If there is no paper, load a new stack of paper into the paper tray. If there is paper 
in the paper tray, make sure it is straight. If the paper is curled, you should 
straighten it. Sometimes it is helpful to remove the paper, turn the stack over and 
put it back into the paper tray. Reduce the amount of paper in the paper tray, and 
then try again. Check that the manual feed...
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