Brother HL-7050 Series User Manual page 171

Error Message
DOWNLOAD FULL
FONT FULL
MEMORY FULL
IGNORE DATA
ACCESSORY ERROR
OPTION MISMATCH
CLEAN DRUM UNIT
6 - 3 TROUBLESHOOTING
Action
Add more memory. See Installing extra DIMM memory
in Chapter 4.
Add more memory. See Installing extra DIMM memory
in Chapter 4.
Add more memory. See Installing extra DIMM memory
in Chapter 4.
Add more memory. See Installing extra DIMM memory
in Chapter 4.
The accessory you added was not installed properly.
Your Duplex unit is not a DX-7000. Change to a
DX-7000.
Your Lower tray is not an LT-7000. Change to an
LT-7000.
Your Mailbox unit is not a MX-7000 series. Change to
a MX-7000 series.
Open the top cover. Pull out the Drum unit assembly.
Gently slide the blue tab across several times.