Brother Mfc 795cw User Manual

							
Troubleshooting and Routine Maintenance165
B
aPull the paper tray (1) completely out of 
the machine.
 
bWipe the outside of the machine with a 
dry lint-free soft cloth to remove dust.
 
cLift the output paper tray cover and 
remove anything that is stuck inside the 
paper tray.
dWipe the paper tray with a dry lint-free 
soft cloth to remove dust.
 
eClose the output paper tray cover and 
put 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 white bar (1) 
and the glass strip (2) with a lint-free 
cloth moistened with a non-flammable 
glass cleaner.
 
Note
In addition to cleaning the scanner glass 
and glass strip with a non-flammable glass 
cleaner, run your finger tip over the glass 
to see if you can feel anything on it. If you 
feel dirt or debris, clean the glass again 
concentrating on that area. You may need 
to repeat the cleaning process three or 
four times. To test, make a copy after each 
cleaning attempt.
 
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Cleaning the machine’s 
printer platenB
CAUTION 
Be sure to unplug the machine from the AC 
power outlet before cleaning the printer 
platen (1) to avoid an electrical shock.
 
aLift the scanner cover until it locks 
securely in 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 
rollersB
aPull the paper tray completely out of the 
machine.
bUnplug the machine from the AC power 
outlet and open the Jam Clear Cover (1) 
at the back of the machine.
 
cClean the Paper Pick-up Rollers (1) with 
isopropyl alcohol on a cotton swab.
 
dClose the Jam Clear Cover.
Make sure the cover is closed properly.
ePut the paper tray firmly back in the 
machine.
fRe-connect the power cord.
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Troubleshooting and Routine Maintenance167
B
Cleaning the print headB
To maintain good print quality, the machine 
will automatically clean the print head when 
needed. 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 in the text or graphics or 
blank text 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 unnecessarily.
IMPORTANT
DO NOT touch the print head. Touching 
the print head may cause permanent 
damage and may void the print heads 
warranty.
 
aPress .
bPress Cleaning .
cPress Black , Color  or All .
The machine cleans the print head. 
When cleaning is finished, the machine 
will go back to the Ready Screen 
automatically.
Note
If you clean the print head at least five 
times and the print has not improved, try 
installing a new Genuine Brother 
Innobella™ replacement cartridge for 
each problem color. Try cleaning the print 
head again up to five more times. If the 
print has not improved call Brother 
Customer Service. (See  Brother numbers 
on page i.)
 
Checking the print qualityB
If faded or streaked colors and text appear on 
your output, some of the nozzles may be 
clogged. You can check this by printing the 
Print Quality Check Sheet and looking at the 
nozzle check pattern.
aPress .
bPress  Test Print .
cPress Print Quality .
dPress Color Start .
The machine begins printing the Print 
Quality Check Sheet.
eCheck the quality of the four color blocks 
on the sheet.
fThe LCD asks you if the print quality is 
OK.
Do one of the following:
„ If all lines are clear and visible, press 
Yes  to finish the Print Quality check 
and go to step j.
„ If you can see missing short lines as 
shown below, press  No.
gThe LCD asks you if the print quality is 
OK for black and three colors.
Press  Yes or No.
hThe LCD asks you if you want to start 
cleaning.
Press  Color Start .
The machine starts cleaning the print 
head.
OK Poor
   
 
						

							
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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 the 
new ink cartridge. If ink is still missing, 
call Brother Customer Service. (See 
Brother numbers  on page i.)
IMPORTANT
DO NOT touch the print head. Touching 
the print head may cause permanent 
damage and may void the print heads 
warranty.
 
Note
 
Checking the print alignmentB
You may need to adjust the print alignment 
after transporting the machine, or if your 
printed text becomes blurred or images 
become faded.
aPress .
bPress Test Print .
cPress Alignment .
dPress Black Start  or Color Start .
The machine starts printing the 
Alignment Check Sheet.
eCheck the 600 dpi and 1200 dpi test 
prints to see if number 5 most closely 
matches number 0. 
fDo one of the following:
„ If the number 5 samples of both the 
600 dpi and 1200 dpi test prints are 
the best matches, press  Yes to finish 
the Alignment Check and go to 
step i.
„ If another test print number is a 
better match for either 600 dpi or 
1200 dpi, press  No to choose it.
gFor 600 dpi, press the number of the test 
print that most closely matches the 
number 0 sample (1-8).
hFor 1200 dpi, press the number of the 
test print that most closely matches the 
number 0 sample (1-8).
iPress  Stop/Exit .
 
i
 
When a print head 
nozzle is clogged 
the printed 
sample looks like 
this. After the print 
head nozzle is 
cleaned, the 
horizontal lines 
are gone.
 
						

							
Troubleshooting and Routine Maintenance169
B
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 cradleB
If you do not use the handset you can remove 
the handset and handset cradle.
Uninstalling the handset and handset 
cradle
B
aUnplug the curled handset cord from the 
machine.
 
bPull the tab (1) back and hold it in 
position as you push the cradle (2) to the 
back of the machine.
 
cAttach the side cover. 
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.
 
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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.
 
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 .
Reset functionsB
The following reset functions are available:
1Network
You can reset the print server back to its 
default factory settings such as the IP 
address information.
2 Speed Dial&Fax
Speed Dial & Fax resets the following 
settings:
„ Speed Dial
(Speed-Dial and Groups)
„ Programmed fax jobs in the memory
(Polled Transmit, Delayed Fax and 
Delayed Batch Transmission)
„ Station ID
(Name and Number)
„ Remote Fax Options
(Fax Forwarding and Paging)
„ Report settings
(Transmission Verification Report, 
Quick Dial List and Fax Journal)
„ Message Center
(OGM, ICM and Recorded Calls)
„ Faxes in the memory
 
						

							
Troubleshooting and Routine Maintenance171
B
„Call History
(Call ID history and Outgoing Call 
history)
3 All Settings
You can reset all the machine settings 
back to the settings that were set at the 
factory.
Brother strongly recommends you use this 
operation when you dispose of the 
machine.
Note
Unplug the interface cable before you 
choose  Network  or All Settings .
 
How to reset the machineB
aPress MENU.
bPress  a or  b to display 
Initial Setup .
cPress Initial Setup .
dPress a or  b to display  Reset.
ePress Reset .
fPress the reset function you want to use.
gPress Yes.
hPress  Yes for 2 seconds to confirm to 
reset.
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 may void your warranty.
IMPORTANT
It is important to allow the machine to 
‘park’ the print head after a print job. Listen 
carefully to the machine before 
unplugging it to make sure that all 
mechanical noise has stopped. Not 
allowing the machine to finish this parking 
process may lead to print problems and 
possible damage to the print head.
 
aOpen the ink cartridge cover.
bPress the ink release lever to release 
the ink cartridge and take out the ink 
cartridges. (See  Replacing the ink 
cartridges  on page 162.)
cInstall the green protective part and then 
close the ink cartridge cover.
 
 
						

							
172
IMPORTANT
• 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 from the front and hook 
the tab of the green protective part into 
the keyed opening (1) on the bottom of 
the paper tray. Then latch the protective 
part over the raised portion of the paper 
tray (2).
 
eUnplug the machine from the telephone 
wall jack and take the telephone line 
cord out of the machine.
fUnplug the machine from the AC power 
outlet.
gUsing both hands, use the plastic tabs 
on both sides of the machine to lift the 
scanner cover until it locks securely into 
the open position. Then unplug the 
interface cable from the machine, if it is 
connected.
   
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Troubleshooting and Routine Maintenance173
B
hLift the scanner cover ( ) to release the 
lock. Gently push the scanner cover 
support down ( ) and close the 
scanner cover ( ) 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 and printed materials to use with 
your ‘Exchange’ machine.
 
 
kClose the carton and tape it shut. 
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C
On-screen 
programming
C
Your machine is designed to be easy to 
operate with LCD on-screen programming 
using the menu buttons on the Touchscreen. 
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 tableC
You can program your machine by using the 
Menu table that begins on page 175. These 
pages list the menu selections and options.
Memory storageC
Even if there is a power failure, you will not 
lose the settings you have chosen using the 
Menu key because they are stored 
permanently. Also, you will not lose your 
settings in the PhotoCapture, Fax and Copy 
mode key menus if you have chosen 
Set New Default.
IMPORTANT
During a power failure the machine will 
retain messages that are in the memory 
for approximately 24 hours.
 
Mode and menu keysC
Menu and FeaturesC
 
Access the main menu.
 
Access each mode and its menu 
of temporary settings.
 Exit the menu or stop the current 
operation.
MENU