Brother DCP 7040 User Manual

43
B
B
TroubleshootingB
If you think there is a problem with your machine, check the chart below and follow the 
troubleshooting tips.
Most problems can be easily resolved by your self. If you need additional help, the Brother 
Solutions Center offers the latest FAQs and troubleshooting tips. Visit us at 
http://solutions.brother.com/
.
If you are having diffic ulty with your machineB
Check the chart below and follow the troubleshooting tips.
Troubleshooting and routine 
maintenance
B
Copy quality...

44
The machine prints unexpectedly 
or it prints garbage.„
Pull out the paper tray and wait until the machine stops printing. Then turn off 
the machine’s power switch and disconnect from the power for several 
minutes. 
„ Check the settings in your application to  make sure it is set up to work with 
your machine.
The machine prints the first couple 
of pages correctly, then some 
pages have text missing. „
Check the settings in your application to make  sure that it is set up to work with 
your...

Troubleshooting and routine maintenance45
B
How do I print on envelopes? You can l oad envelopes from the manual feed slot. Your application must be set 
up to print the envelope size you are usi ng. This is usually done in the Page Setup 
or Document Setup menu of your application. (See your application’s manual for 
more information.)
Which paper can I use? You can use  plain paper, recycled paper, transparency and labels that are made 
for laser machines. (For details, see  Acceptable paper and other...

46
The network scanning feature 
does not work.
The network printing feature does 
not work.(For Windows® only) The firewall setting on your PC may be rejecting the 
necessary network connection. Follow t he 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.
For Windows
® XP SP2 users:
aClick the  Start button,  Control Panel , Network and Internet 
Connections  and then...

Troubleshooting and routine maintenance47
B
The network scanning feature 
does not work.
The network printing feature does 
not work.
(continued)For Windows Vista
®
 users:
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 
administrator password and click  OK....

48
Improving the print qualityB
Examples of poor print 
qualityRecommendation
 
White lines across the page„
Make sure that you use paper that meets our specifications. A rough 
surfaced paper or thick print media can cause the problem. (See 
Acceptable paper and other print media  on page 11.)
„ Make sure that you choose the appropriate media type in the printer 
driver or in the machine’s Paper Type menu setting. (See  Acceptable 
paper and other print media  on page 11 and Basic tab in the Software...

Troubleshooting and routine maintenance49
B
 
Page skewed„
Make sure that the paper or other  print media is loaded correctly in 
the paper tray and that the guides  are not too tight or too loose 
against the paper stack.
„ Set the paper guides correctly. (See  Loading paper in the paper tray 
on page 6.)
„ The paper tray may be too full.
„ If you are using the manual feed slot, see  Loading paper in the 
manual feed slot  on page 7.
„ Check the paper type and quality. (See  Acceptable paper and other...

50
 
Curled or wavy„
Check the paper type and quality. High temperatures and high 
humidity will cause paper to curl.
„ If you do not use the machine often, the paper may have been in the 
paper tray too long. Turn over the stack of paper in the paper tray. 
Also, fan the paper stack and then rotate the paper 180° in the paper 
tray.
 
White Spots on black text 
and graphics at 75 mm  intervals
 
Black Spots at 75 mm intervals „
Make ten copies of a blank,  white sheet of paper. (See Making 
multiple...

Troubleshooting and routine maintenance51
B
 
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 34.)
„ 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 18 or  Advanced tab in the Software User’s Guide on the CD-
ROM .)
„ Clean the scanner...

52
 
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 11.)
„ 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 67.)
„ 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,...