Brother MFC 9320CW User Manual

Troubleshooting and routine maintenance119
C
Copy difficulties
DifficultiesSuggestions
Cannot make a copy. „Make sure that  Copy is illuminated. (See  Entering copy mode 
on page 80.)
„ (For MFC-9320CW only) Contact your administrator to check your Secure 
Function Lock Settings.
Vertical black line appears in 
copies. Black vertical lines on copies are typically caused by dirt or correction fluid on the 
glass strip, or one or more corona wires are dirty. (See 
Cleaning the scanner glass 
on page 146...

120
The headers or footers appear 
when the document displays on the 
screen but they do not show up 
when it is printed.There is an unprintable area on the top and bottom of the page. Adjust the top and 
bottom margins in your document to allow for this. (See 
Unprintable area 
on page 16.)
The machine is not printing or has 
stopped printing. Press 
Job Cancel .
As the machine cancels the job and clears it from the memory it may produce an 
incomplete printout.
Scanning difficulties...

Troubleshooting and routine maintenance121
C
How do I print on envelopes? You can load envelopes from the manual feed slot. Your application must be set up to print the envelope size you are using. This is usually done in the Page Setup 
or Document Setup menu of your application. (See your application’s manual for 
more information.)
What paper can I use? You can use thin paper, plain paper, thick paper, bond paper, recycled paper,  envelopes and labels that are made for laser machines. (For details,...

122
The network scanning feature 
does not work.
The network PC Fax Receive 
feature does not work.
The network printing feature does 
not work.(Windows®) The firewall setting on your PC may be rejecting the necessary 
network connection. Follow the instructions below to configure Windows
® 
Firewall. If you are using other personal firewall software, see the User’s Guide 
for your software or contact the software manufacturer.
 (Windows
® XP SP2)
aClick the  Start button,  Control Panel , Network and...

Troubleshooting and routine maintenance
123
C
The network scanning feature 
does not work.
The network PC Fax Receive 
feature does not work.
The network printing feature does 
not work.
(continued)(Windows Vista®)
aClick the Start button, Control Panel, Network and Internet, Windows 
Firewall and click Change settings.
bWhen the User Account Control screen appears, do the following.
„Users who have administrator rights: Click Continue.
„For users who do not have administrator rights: Enter the...

124
Improving the print qualityC
If you have a print quality problem, print a test page first (Menu, 4, 2, 3). If the printout looks good, 
the problem is probably not the machine. Check the interface cable connections or try printing a 
different document. If the printout or test page printed from the machine has a quality problem, 
check the following steps first. And then, if you still have a print quality problem, check the chart 
below and follow the recommendation.
aCheck that you use the paper...

Troubleshooting and routine maintenance
125
C
White streaks or bands down 
the page
 
„Wipe the windows of all four LED heads with a dry lint free soft cloth. 
(See Cleaning the LED heads on page 147.)
„Clean all four drum units. (See Cleaning the drum unit on page 149.)
„Identify the missing colour and put in a new toner cartridge. (See 
Replacing a Toner cartridge on page 158.)
You may only need to replace one toner cartridge to solve the print 
problem. To identify which toner cartridge needs to be...

126
Coloured lines across the page
 
„If coloured lines appear at 30 mm intervals, replace the toner 
cartridge that matches the colour of the line. (See Replacing a Toner 
cartridge on page 158.)
„If coloured lines appear at 94 mm intervals, put in a new drum unit 
that matches the colour of the line. (See Replacing the drum units 
on page 164.)
White spots or hollow print
 
„If the problem is not solved after printing a few pages, the drum unit 
may be stained. Clean all four drum units. (See Small...

Troubleshooting and routine maintenance
127
C
Toner scatter or toner stain
 
„Check the machine’s environment. Conditions such as high humidity 
and high temperatures may cause this print quality problem. (See To 
use the machine safely on page 103.)
„Identify the colour causing the problem and put in a new toner 
cartridge. (See Replacing a Toner cartridge on page 158.)
You may only need to replace one toner cartridge to solve the print 
problem. To identify which toner cartridge needs to be replaced,...

128
All one colour
 
„Identify the colour causing the problem and put in a new drum unit. 
(See Replacing the drum units on page 164.)
You may only need to replace one drum unit to solve the print 
problem. To identify which drum needs to be replaced, please visit us 
at http://solutions.brother.com/
 to view our FAQs and troubleshooting 
tips.
Colour misregistration
 
„Make sure that the machine is on a solid level surface.
„Perform the auto colour registration using the control panel (see Auto...