Brother HL-4050CDN EN - Manual (Page 153)

Troubleshooting
144
7
Size Mismatch Put the same size paper in the paper tray or MP tray that is selected in the printer driver,
and then press Go, or select the size of paper you set in the Tray Size setting from the
control panel.
Toner Life End It is time to replace the toner cartridge. (See Replacing a toner cartridge on page 98.)
Tray2 Error Take out Tray2 and push it back in firmly.
Unusable Device Remove the USB flash memory drive from USB Direct Interface.
Waste Toner Full It is time to replace the Waste Toner Box. (See Replacing the waste toner
box on page 116.)
Error messages in Color Correction
Call service message Action
Calibrate
<Second line of the
LCD>Calibration
failed. See
Troubleshooting
chapter in User's
guide.
Turn off the printer. Wait a few seconds, then turn it on again.
Put in a new drum unit. (See Replacing the drum unit on page 105.)
Put in a new belt unit. (See Replacing the belt unit on page 111.)
Put in a waste toner box. (See Replacing the waste toner box on page 116.)
If the problem continues, call your dealer or Brother Customer Service.
Registration
<Second line of the
LCD>Registration
failed. See
Troubleshooting
chapter in User's
guide.
Turn off the printer. Wait a few seconds, then turn it on again.
Put in a new belt unit. (See Replacing the belt unit on page 111.)
If the problem continues, call your dealer or Brother Customer Service.
Maintenance messages
Error message Meaning Action
o o n o The four o marks (also n, n=blinking o)
indicate the Black (K), Yellow (Y), Magenta
(M), Cyan (C) toner cartridges from left to
right. When the o mark blinks (shown as n
in left), the indicated color toner is nearly
empty. When the toner becomes empty, the
o
indicator disappears completely.
Buy a new toner cartridge before you get a
Toner Life End
message.
Change Belt Unit It is time to replace the belt unit. Replace the belt unit.
Change PF KitXX It is time to replace the paper feeding kit XX. Replace the paper feeding kit.
Drum End Soon It is time to replace the drum unit. Replace the drum unit. (See Replacing the
drum unit on page 105.)
Fuser Unit End It is time to replace the fuser unit. Replace the fuser unit.
Laser Unit End It is time to replace the laser unit. Replace the laser unit.
Error messages (continued)
Error message Action