Brother Mfc 790cw User Manual

Troubleshooting and Routine Maintenance165
B
Cleaning the machine’s 
printer platenB
WARNING 
Be sure to unplug the machine from the AC 
power outlet before cleaning the printer 
platen (1).
 
aLift the scanner cover until it locks 
securely into the open position.
bClean the machine’s printer platen (1) 
and the area around it, wiping off any 
scattered ink with a soft, dry lint-free 
cloth.
 
Cleaning the paper pick-up 
rollerB
aPull the paper tray completely out of the 
machine.
bUnplug the machine...

166
Cleaning the print headB
To maintain good print quality, the machine 
will automatically clean the print head. You 
can start the cleaning process manually if 
there is a print quality problem.
Clean the print head and ink cartridges if you 
get a horizontal line or blank text in the text or 
graphics on your printed pages. You can 
clean Black only, three colors at a time 
(Cyan/Yellow/Magenta), or all four colors at 
once.
Cleaning the print head consumes ink. 
Cleaning too often uses ink...

Troubleshooting and Routine Maintenance167
B
iAfter cleaning is finished, press 
Color Start.
The machine starts printing the Print 
Quality Check Sheet again and then 
return to step e. 
jPress  Stop/Exit .
If you repeat this procedure at least five 
times and the print quality is still poor, 
replace the ink cartridge for the clogged 
color. 
After replacing the ink cartridge, check 
the print quality. If the problem still 
exists, repeat the cleaning and test print 
procedures at least five times for...

168
Checking the ink volumeB
Although an ink volume icon appears on the 
LCD, you can use the ink menu to see a large 
graph showing the ink that is left in each 
cartridge.
aPress .
bPress Ink Volume .
The LCD shows the ink volume.
cPress  Stop/Exit .
Note
You can check the ink volume from your 
computer. (See  Printing for Windows
® or 
Printing and Faxing  for Macintosh
® in the 
Software User’s Guide on the CD-ROM.)
 
Uninstalling and installing the 
handset and handset cradle 
(MFC-790CW only)B
If...

Troubleshooting and Routine Maintenance169
B
Installing the handset and handset 
cradle
B
aRemove the side cover. 
Note
If you cannot open the cover with your 
hand, use a coin to open it.
 
bAlign the recessed arrows on the cradle 
with those on the machine, and then 
slide the cradle toward the front of the 
machine until it clicks into place.
 
cConnect the curled handset cord to the 
machine.
 
 

170
Machine InformationB
Checking the serial numberB
You can see the machine’s serial number on 
the LCD.
aPress MENU.
bPress  aor b to display 
Machine Info.
cPress  Machine Info.
dPress Stop/Exit .
Packing and shipping 
the machine
B
When you transport the machine, use the 
packing materials that came with your 
machine. If you do not pack the machine 
properly, you could void your warranty.
CAUTION 
It is important to allow the machine to ‘park’ 
the print head after a print job. Listen 
carefully to...

Troubleshooting and Routine Maintenance171
B
CAUTION 
Make sure that the plastic tabs on both 
sides of the green protective part (1) have 
securely clicked into place (2).
  
If you are not able to find the green 
protective part, DO NOT remove the ink 
cartridges before shipping. It is essential 
that the machine be shipped with either the 
green protective part or the ink cartridges in 
position. Shipping without them will cause 
damage to your machine and may void your 
warranty.
 
dLift the machine...

172
hLift the scanner cover (1) to release the 
lock. Gently push the scanner cover 
support down (2) and close the scanner 
cover (3) using both hands.
 
iWrap the machine in the bag. 
jPack the machine and the printed 
materials in the original carton with the 
original packing material as shown in 
the illustration. 
Do not pack the used ink cartridges in 
the carton.
Note
If you are returning your machine to 
Brother as part of the Exchange Service, 
pack only the machine. Keep all separate 
parts...

173
C
C
On-screen 
programming
C
Your machine is designed to be easy to 
operate with LCD on-screen programming 
using the menu keys. User-friendly 
programming helps you take full advantage of 
all the menu selections your machine has to 
offer.
Since your programming is done on the LCD, 
we have created step-by-step on-screen 
instructions to help you program your 
machine. All you need to do is follow the 
instructions as they guide you through the 
menu selections and programming options.
Menu...

174
Menu tableC
The menu table will help you understand the menu selections and options that are found in the 
machines programs. The factory settings are shown in Bold with an asterisk.
MENU ()
Level1 Level2 Level3 Options Descriptions Page
General Setup Mode Timer —Off
0 Sec
30 Secs
1 Min
2 Mins*
5 Mins Sets the time to return to 
Fax mode.
25
Paper Type —Plain Paper*
Inkjet Paper
Brother BP71
Other Glossy
Transparency Sets the type of paper in 
the paper tray.
25
Paper Size —Letter*
Legal
A4
A5
4x6...