HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL
Confidential
7-27
Title Subtitle Description
CLEAR COVERAGE Initialize average coverage counter. RESET COUNT
CLEAR ERROR HIST Initialize error history.
NV-RAM DEBUG NV-RAM HEX PRINT Prints NV-RAM HEX dump.
PPDS SUBSET ON/OFF Supports the PPDS Subset command in the FX
Emulation mode.
FAN TEST Carries out movement test of FANs. TEST MENU
FAN 1=ON/OFF* Carries out movement test of main fan, LVPS
fan.
MOTOR TEST
MAIN
MOTOR=ON/OFF*
Carries out movement test of main motor.
SCAN
MOTOR=ON/OFF*
Carries out movement test of scanner motor.
SENSOR TEST
FRONT
COVER=ON/OFF
Front cover sensor (ON: Close)
T1
KOUTAN=ON/OFF
T1 tail edge sensor
T2
KOUTAN=ON/OFF
T2 tail edge sensor
T3
KOUTAN=ON/OFF
T3 tail edge sensor
REGI-MAE=ON/OFF Regist front sensor
REGI-ATO=ON/OFF Regist rear sensor
EJECT=ON/OFF Paper eject sensor
T1 PAPER=ON/OFF Tray 1 paper sensor
T2 PAPER=ON/OFF Tray 2 paper sensor
T3 PAPER=ON/OFF Tray 3 paper sensor
MP
PAPER=ON/OFF
MP Tray paper sensor
DX UNIT=ON/OFF The DX unit is closed. (ON: Close)
REAR
COVER=ON/OFF
Back cover sensor (ON: Close)
NEW
TONER=ON/OFF
New toner sensor
T2
CONNECT=ON/OFF
Tray 2 connect sensor
T3
CONNECT=ON/OFF
Tray 3 connect sensor
T4
CONNECT=ON/OFF
Tray 4 connect sensor
TONER=ON/OFF Toner sensor (ON: Light reception)