Brother HL-2400C Service Manual page 133

Turn on the printer while pressing the Mode, Set and
Normal Mode
On Line LED ON
Service Mode
On Line LED OFF
Table 5-2
00 READY
01 WAIT
02 PRINT
11 CHK MEDIA
NO MEDIA
12 NO TRAY
13 REPLACE * TONER
CHECK FUSER OIL
14 CHK CLEANING ROLLER
CHECK WASTE TONER PACK
15 MISPRINT
ALIGN * TONER CG
16 ALIGN FU. UNIT
ALIGN FUSER CL ROLLER
ALIGN BELT CG
17 MEDIA JAM
CLOSE PANEL FRONT
18 CLOSE PANEL TOP
CLOSE TR. UNIT
19 SLEEP MODE
20 SERVICE CALL
31 TEST PRINT
32 NEXT CARE INFO.
33 CASSETTE TYPE
34 TOTAL PAGE
35 EACH IMAGE
36 CLEAR CARE
37 MEDIA MODE
39 FACTORY MODE
V-12
buttons.
Ready LED OFF
Ready LED BLINKING
Ready LED OFF
Ready LED ON
Ready LED ON
40 DP CHECK
41 BD CHECK
42 FU CHECK
43
MARGIN ADJUST
44 LIFE PERIOD SET
45 NVRAM TUNE UP
46 NVRAM INITIAL
47 TOTAL PAGE SET
48
EACH IMAGE SET
LP TUNE UP
THV TUNE UP
DBV TUNE UP
DVM TUNE UP
CBV TUNE UP
FBV TUNE UP
REG TUNE UP
VDO TUNE UP