Brother HL-6050 Service Manual page 209

CHAPTER 6 TROUBLESHOOTING
Maintenance Message
CHANGE DRUM SOON
TONER LOW
REPLACE PF KITMP
REPLACE PF KIT1
REPLACE PF KIT2
REPLACE FUSER
REPLACE LASER
CHECK NET BOARD
CHECK NET VER.
Remedy
The drum unit is almost at the end of life. Prepare a new
drum unit. Refer to subsection 1.1 'Drum Unit' in CHAPTER
5.
Indicates that the toner cartridge is nearly empty. Purchase a
new toner cartridge in order to be ready for when the
"TONER LIFE END" message is indicated. Refer to
subsection 1.2 'Toner Cartridge' in CHAPTER
Replace the paper feeding kit. (Separation pad spring/
Separation pad assy/ Separation roller assy/ Feed roller assy)
Refer to 2 PERIODICAL REPLACEMENT PARTS in
CHAPTER 5.
Replace the fixing unit. Refer to
in CHAPTER 4.
Replace the laser unit. Refer to
in CHAPTER 4.
The installed network board is not compatible. Install the
recommended network board.
The firmware version of the installed network board is not up
to date. Update the firmware by accessing the Brother
Solutions Center at http://solutions.brother.com.
6-6
5.
subsection 3.15 'Fixing Unit"
subsection 3.14 'Laser Unit'