Brother Mfc 790cw User Manual

Troubleshooting and Routine Maintenance155
B
No Paper FedThe machine is out of paper or 
paper is not properly loaded in the 
paper tray, or the Jam Clear 
Cover is not closed properly. Do one of the following:
„ Refill the paper in the paper tray, and 
then press  Black Start  or Color Start .
„ Remove the paper and load it again 
and then press  Black Start or 
Color Start . (See Loading paper and 
other print media  on page 10.) Close 
the Jam Clear Cover properly.
The paper is jammed in the...

156
Error animationB
Error animation displays step-by-step 
instructions when paper gets jammed. You 
can read the steps at your own pace by 
pressing c to see the next step and  d to go 
backward. If you do not press a key after 1 
minute the animation starts running 
automatically again.
Note
You can press  d or  c to pause the auto-
animation and go back to step-by-step 
mode.
 
Transferring your faxes or 
Fax Journal reportB
If the LCD shows:
„ Unable to Clean  XX
„ Unable to Init.  XX
„ Unable to...

Troubleshooting and Routine Maintenance157
B
You can also transfer the Fax Journal report 
to see if there are any faxes you need to 
transfer. (See Transferring Fax Journal report 
to another fax machine  on page 157.)
Note
If there is an error message on the 
machines LCD, after the faxes have been 
transferred, disconnect the machine from 
the power source for several minutes, and 
then reconnect it.
 
Transferring faxes to another fax 
machine
B
If you have not set up your Station ID, you 
cannot...

158
gEnter the fax number to which the Fax 
Journal report will be forwarded.
hPress Black Start .
Document jamB
Documents can jam in the ADF unit if they are 
not inserted or fed properly, or if they are too 
long. Follow the steps below to clear a 
document jam.
Document is jammed in the top of the 
ADF unit
B
aTake out any paper from the ADF that is 
not jammed.
bOpen the ADF cover.
cPull the jammed document up and to the 
left.
 
dClose the ADF cover.
ePress Stop/Exit .
Note
To avoid future document...

Troubleshooting and Routine Maintenance159
B
Printer jam or paper jamB
Take out the jammed paper depending on 
where it is jammed in the machine.
aPull the paper tray (1) out of the 
machine.
 
bPull out the jammed paper (1) and press 
Stop/Exit.
 
cReset the machine by lifting the scanner 
cover from the front of the machine and 
then closing it.
„ If you cannot remove the jammed 
paper from the front of the machine, 
or the error message still appears on 
the LCD after you have removed the 
jammed...

160
fLift the scanner cover (1) from the front 
side of the machine until it locks 
securely into the open position. Make 
sure that there is no jammed paper left 
inside the machine. 
 
Note
• If the paper is jammed under the print head, unplug the machine from the power 
source, and then move the print head to 
take out the paper.
• If the print head has stopped in the right  corner as shown in the illustration, you 
cannot move the print head. Press 
Stop/Exit  until the print head moves to the...

Troubleshooting and Routine Maintenance161
B
Routine maintenanceB
Replacing the ink cartridgesB
Your machine is equipped with an ink dot 
counter. The ink dot counter automatically 
monitors the level of ink in each of the 4 
cartridges. When the machine detects an ink 
cartridge is running out of ink, the machine 
will tell you with a message on the LCD.
The LCD will tell you which ink cartridge is low 
or needs replacing. Be sure to follow the LCD 
prompts to replace the ink cartridges in the 
correct...

162
dTurn the green knob on the protective 
yellow cap clockwise until it clicks to 
release the vacuum seal, then remove 
the cap (1).
 
 
eEach color has its own correct position. 
Insert the ink cartridge in the direction of 
the arrow on the label.
 
fGently push the ink cartridge in until it 
clicks, and then close the ink cartridge 
cover.
 
gThe machine will automatically reset the 
ink dot counter.
Note
• If you replaced an ink cartridge, the LCD may ask you to verify that it was a brand 
new...

Troubleshooting and Routine Maintenance163
B
CAUTION 
DO NOT take out ink cartridges if you do 
not need to replace them. If you do so, it 
may reduce the ink quantity and the 
machine will not know the quantity of ink left 
in the cartridge.
 
 
DO NOT touch the cartridge insertion slots. 
If you do so, the ink may stain your skin.
  
If ink gets on your skin or clothing 
immediately wash it off with soap or 
detergent.
  
If you mix the colors by installing an ink 
cartridge in the wrong position,...

164
aPull the paper tray (1) completely out of 
the machine.
 
bWipe the outside of the machine with a 
soft cloth to remove dust.
 
cRemove anything that is stuck inside the 
paper tray.
dWipe the paper tray with a soft cloth to 
remove dust.
 
ePut the paper tray firmly back in the 
machine.
Cleaning the scannerB
aLift the document cover (1). Clean the 
scanner glass (2) and the white plastic 
(3) with a soft lint-free cloth moistened 
with a non-flammable glass cleaner.
 
bIn the ADF unit, clean the...