Brother Mfc 8220 User Manual

TROUBLESHOOTING AND ROUTINE MAINTENANCE   12 - 8
WARNING
To prevent damage to the MFC caused by static electricity, do not 
touch the electrodes shown in the following diagram.
5Open the back output tray. Pull the jammed paper out of the 
fuser unit. If the paper jam can be cleared, go to Step 7.
If you have to pull the paper toward the back of the MFC, the 
fuser may get dirty with toner powder and it may scatter on the 
next printouts. Print a few copies of the test page until the 
scattering of toner...

12 - 9   TROUBLESHOOTING AND ROUTINE MAINTENANCE
WARNING
After you have just used the MFC, some internal parts of the MFC 
are extremely HOT! Wait for the MFC to cool down before you touch 
the internal parts of the MFC.
6Open the jam clear cover (fuser cover). Pull the jammed paper 
out of the fuser unit.
7Close the jam clear cover (fuser cover). Close the back output 
tray.
HOT!
Back view
Jam Clear Cover
(Fuser Cover)
Back Output Tray
 

TROUBLESHOOTING AND ROUTINE MAINTENANCE   12 - 10
8Push the lock lever down and take the toner cartridge out of the 
drum unit. Take out the jammed paper if there is any inside the 
drum unit. Then put the toner cartridge back in the drum unit.
9Put the drum unit and toner cartridge assembly back in the MFC.
10Put the paper tray in the MFC.
11Close the front cover.
 

12 - 11   TROUBLESHOOTING AND ROUTINE MAINTENANCE
If you are having difficulty with your MFC
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 
MFC. Check the chart below and follow the troubleshooting tips.
DIFFICULTYSUGGESTIONS
Printing or Receiving Faxes
Condensed print and 
horizontal streaks or the top 
and bottom of sentences are 
cut off.If your copy looks good, you probably had a bad connection, with static...

TROUBLESHOOTING AND ROUTINE MAINTENANCE   12 - 12
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’ or, on 
the Transmission Verification Report, your MFC may be out of memory. 
To gain extra memory, you can turn off Fax Storage (see Setting Fax 
Storage on page 8-2), print fax messages in memory (see Polling on 
page 5-11) or cancel a Delayed Fax or...

12 - 13   TROUBLESHOOTING AND ROUTINE MAINTENANCE
The MFC prints first couple of 
pages correctly, then some 
pages have text missing.Your computer is not recognizing the printer’s input buffer full signal. 
Please make sure to connect the MFC cable correctly.
The MFC cannot print full 
pages of an original 
document.
Out of Memory message 
occurs.Reduce the printing resolution. Reduce the complexity of your original 
documents and try again. Reduce the graphic quality, the number of font 
sizes within...

TROUBLESHOOTING AND ROUTINE MAINTENANCE   12 - 14
Paper Handling Difficulties
The MFC does not load paper. 
The LCD shows Check 
Paper or Paper Jam.Check to see if the Check Paper or Paper Jam message appears on 
the LCD. If it is empty, 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...

12 - 15   TROUBLESHOOTING AND ROUTINE MAINTENANCE
Improving the print quality
This section provides information on the following topics:
Examples of poor print 
qualityRecommendation
FaintCheck the printer’s environment. Conditions such as humidity, high 
temperatures, and so on may cause this print fault. (See Choosing a 
location on page iv.)
If the whole page is too light, Toner Save mode may be on. Turn off 
Toner Save mode in the printer Properties tab of the driver.
—OR—
If your MFC is not...

TROUBLESHOOTING AND ROUTINE MAINTENANCE   12 - 16
White Spots on black text 
and graphics at 94 mm 
intervals
Black Spots at 94 mm 
intervalsIf the problem is not solved after printing a few pages, the drum unit may 
have glue from label stock on the OPC drum surface.
Clean the drum unit as follows:
1 Position the print sample in front of the drum unit, and find the exact 
position of the poor print.
2 Turn the drum unit gear by hand while looking at the surface of the 
OPC drum.
Do not touch the...

12 - 17   TROUBLESHOOTING AND ROUTINE MAINTENANCE
Black toner marks across 
the pageThe drum unit may be damaged. Put in a new drum unit. (See Replacing 
the drum unit on page 12-30.)
Make sure that you use paper that meets our specifications. (See About 
paper on page 2-1.)
If you use label sheets for laser printers, the glue from the sheets may 
sometimes stick to the OPC drum surface. To clean the drum unit, follow 
the steps in the previous page.
Do not use paper that has clips or staples because...