Brother HL-4000CN Service Manual page 219

LCD Display
Replace
Transfer Roll
Replace Print
Head Cartridge
Print Head Cart
ID Error
Clean Up
CTD Sensor
Close
Front Cover
Empty
Exit Tray
(During job waiting or auto paper
feeding)
Push in a Tray
(When a tray is specified)
Push in Tray N
< Name of Fail>
Contents of Trouble
<IOT transfer roll cartridge Life Over>
Transfer roll cartridge ASSY life expired.
<IOT print head cartridge Life Over>
Print head cartridge ASSY life expired.
<IOT CRUM ID Error>
ID is different from one that is recorded in print head cartridge ASSY
ID.
<IOT CTD Sensor Dustiness>
ADC sensor ASSY signal level below the specified value.
<IOT Front Cover Open>
Font cover is open.
<IOT Standard Stacker Full>
Exit tray is full.
<Tray Detached>
・
All existing trays are open during job waiting or auto paper
feeding. (All Tray Detached)
・
The specified tray is open when a tray is specified. (Specified
Tray Detached)
V-9
Action Reference
BSD
Replace transfer roll 2.8.7
2.8.8
cartridge ASSY.
See transfer roll cartridge
life over FIP
Replace print head 2.3.2
2.3.3
cartridge ASSY.
See print head cartridge life
over FIP
Replace print head 2.3.2
2.3.3
cartridge ASSY.
See CRUM ID error FIP
Clean ADC sensor ASSY. 2.8.7
See CTD sensor dustiness 2.8.8
FIP
Close the front cover. 2.1.1
See front cover FIP 2.1.2
Remove output paper stack. 2.9.4
See full stack FIP 2.9.6
Push in the tray. 2.6.1
N indicates the tray no.
2.6.2
2.6.3
2.6.4