Brother HL 7050N User Manual

5 - 12 ROUTINE MAINTENANCE
HL7050_US_UG_FM5.5
Cleaning
Clean the outside and inside of the printer with a dry soft cloth.  
When you replace the drum unit, make sure you clean the inside of 
the printer.  If printed pages are stained with toner, clean the inside 
of the printer with a dry soft cloth.
Cleaning the outside of the printer
Clean the outside of the printer as follows:  
1Turn off the printer power switch, and then unplug the printer 
power cord.
2Pull the paper tray out of the printer. 
3Open...

ROUTINE MAINTENANCE 5 - 13
HL7050_US_UG_FM5.5
4Wipe the outside of the printer with a soft cloth to remove dust. 
Figure 5-17
5Remove anything that is stuck inside the paper tray.   
Figure 5-18
6Put the paper tray back in the printer, and then close the 
multi-purpose tray.
7Plug the printer power cord back in, and then turn the printer 
power switch back on.
 

5 - 14 ROUTINE MAINTENANCE
HL7050_US_UG_FM5.5
Cleaning the inside of the printer
Clean the inside of the printer as follows:  
1Turn off the printer power switch, and then unplug the printer 
power cord.
2Open the top cover. 
3Take out the drum unit assembly. 
When you clean the inside of the printer, pay attention to the 
following: 
■If your clothes are smeared with toner, wipe off the toner 
with a dry cloth and immediately wash the clothes in cold 
water to avoid stains. 
■Never touch the hot fuser....

ROUTINE MAINTENANCE 5 - 15
HL7050_US_UG_FM5.5
4Wipe off toner and paper dust from the metal plate in the printer 
with a dry, soft cloth. 
Figure 5-21
5Wipe the scanner window with a dry, soft cloth.
Figure 5-22
WARNINGAfter you have just used the printer, some parts 
inside the printer are extremely hot. When you open 
the top cover of the printer, never touch the fuser 
and fixing roller.
Inside the printer Open the face-up output tray
Figure 5-20
Fuser is HOT!
Metal plate
 

5 - 16 ROUTINE MAINTENANCE
HL7050_US_UG_FM5.5
6Put the drum unit assembly in the printer. 
7Close the top cover. 
8Plug the printer power cord back in, and then turn the printer 
power switch back on.
 

ROUTINE MAINTENANCE 5 - 17
HL7050_US_UG_FM5.5
Cleaning the corona wire
If you are experiencing print quality problems, please clean the 
corona wire as follows:
1Turn off the printer power switch, and then unplug the printer 
power cord.
2Open the top cover.   
3Take out the drum unit assembly (drum unit with the toner 
cartridge).
■We recommend that you put the drum unit Assembly on a 
piece of disposable paper or cloth in case you accidentally 
spill the toner.
■To prevent damage to the printer from...

5 - 18 ROUTINE MAINTENANCE
HL7050_US_UG_FM5.5
4Clean the Primary Corona Wire inside the drum unit by gently 
sliding the blue tab from right to left several times.
Figure 5-24
5Put the drum unit assembly back in the printer. 
6Close the top cover.  
7Plug the printer power cord back in, and then turn the printer 
power switch back on.
Make sure to return the tab to the Home position. If you do 
not, printed pages will have a black vertical stripe.
Home Position 
()
 

ROUTINE MAINTENANCE 5 - 19
HL7050_US_UG_FM5.5
Maintenance Messages
This printer will regularly prompt you to replace parts so you can rely 
upon it to maintain the best print quality.
*
1  At 5% print coverage (A4 or Letter size).  The actual number of 
printed pages will vary depending on the print jobs and paper you 
use.
LCD Message Item Approximate Life To Purchase 
Replacement
REPLACE PF 
KIT MPPaper feeding kit 100,000 pages *
1Call Customer 
Support
REPLACE PF 
KIT 1Paper feeding kit 100,000 pages...

TROUBLESHOOTING 6 - 1
6
HL7050_US_UG_FM5.5
6Troubleshooting
LCD messages
Error messages
The LCD names for the paper trays are as follows.
Upper paper tray TRAY 1
Multi-purpose tray MP TRAY
Optional  Lower  tray  TRAY 2, TRAY3, TRAY 4
Optional Duplex unit for 
Duplex printingDX
Optional Mailbox unit MX
Error MessageAction
TONER LIFE ENDReplace the toner cartridge with a new one. 
See Replacing the toner cartridge in Chapter 5.
CARTRIDGE ERRORTake out the toner cartridge and put it back into the 
printer...

TROUBLESHOOTING 6 - 2
HL7050_US_UG_FM5.5
MEDIATYPE ERRORSpecify the correct type of media.  
MANUAL FEEDPut the same size of paper in the multi-purpose tray as 
is shown on the LCD.  If the printer is paused, press 
Go.
SIZE ERROR XXXPut the same size paper in the paper tray or multi-
purpose tray that is selected in the printer driver. See 
What kind of paper can I use? in Chapter 1.
NO TRAY ID XXXThe tray you are trying to print to has been taken out.  
Put the tray back in the printer.  
SIZE ERROR...