Справочник Пользователя для Brother FAX 5750

T R O U B L E S H O O T I N G   A N D   R O U T I N E   M A I N T E N A N C E

Open the front cover.

Remove the old drum unit.                   
Place the drum unit on a drop
cloth or disposable
paper to avoid scattering toner.

Hold down the lock lever on the          

right and pull the toner cartridge
out of the drum unit assembly.
(See Replacing the Toner
Cartridge, page 17-23.)

Discard the used drum unit according to local regulations.  If you are not
sure of them, call your local Sanitation Department.  Be sure to seal the
drum unit tightly so toner powder does not spill out of the unit.  When
discarding used drum units, keep them separate from domestic garbage.

Wait to unpack the new drum unit until immediately before installing it.
Place the old drum unit into the aluminium bag and discard it according to
local regulations.

Reinstall the toner cartridge into the new drum unit. (See Replacing the
Toner Cartridge, page 17-23.)

Reinstall the new drum unit, keeping the front cover open.

Press 

Clear

.

Press 

1

 and when the display shows

R E P L A C E   D R U M ? 

1 . Y E S     2 . N O

ACCEPTED, and close the front cover.

If toner scatters and your hands or clothes get dirty, immediately wipe off
or wash with cold water.

You can see the percentage of the drum’s life that remains available.

For the FAX, press 

Function

, 

0

, 

4

.

For the MFC, press 

Function

, 

1

, 

0

, 

4

.

For five seconds, the screen displays the

D R U M   L I F E 

R E M A I N I N G : 7 0 %

available percentage of drum life.

Even if the remaining drum life is 0%, you may continue to use the drum
unit until you have a print quality problem.