Brother HL-4000CN - Page 256

V-46
Menu
No.
Part/signal name Test method
Reference
BSD
DI-12
TRAY2 NO PAPER SENSOR Block and unblock the sensor
with an actuator.
2.6.2
DI-13
TRAY3 NO PAPER SENSOR Block and unblock the sensor
with an actuator.
2.6.3
DI-15
TRAY1 LOW PAPER SENSOR Increase and decrease paper on
Tray1 for sensor detection and
no detection.
2.6.1
DI-16
TRAY2 LOW PAPER SENSOR Increase and decrease paper on
Tray2 for sensor detection and
no detection.
2.6.2
DI-17
TRAY3 LOW PAPER SENSOR Increase and decrease paper on
Tray3 for sensor detection and
no detection.
2.6.3
DI-18
TRAY1 SIZE SWITCH ASSY
2.6.1
DI-20
TRAY2 SIZE SWITCH ASSY
2.6.2
DI-28
TRAY3 SIZE SWITCH ASSY
2.6.3
DI-30
FUSER FAN ALARM Hold and release fuser fan.
2.9.3
DI-31
REAR FAN ALARM Hold and release rear fan.
2.9.3
DI-32
NO PRINT HEAD CARTRIDGE
ASSY
Mount and remove print head
cartridge ASSY.
2.3.2
DI-33
WASTE TONER SENSOR Block and unblock the sensor
with paper.
2.8.6
DI-34
NO Tray Module Connect and disconnect the tray
module.
2.7
4.8.2 Digital output test
Function: Activating a solenoid, clutch, motor, or other parts.
Capable of activating two or more parts simultaneously. (Parallel execution)
Operation procedure:
1. Enter the Diag. (C/E) mode.
2. Select [CE Maintenance IOT Diag] with the
and buttons.
3. Press the Form Feed/Set button to advance to diagnostic menu selection in [CE
Maintenance IOT Diag].
4. Select [IOT Diag Digital Output] with the
and buttons.
5. Press the Form Feed/Set button to advance to diagnostic menu selection in [IOT
Diag Digital Output].
6. Select the menu No. of a digital output test with the
and buttons.
7. (For the contents of the diagnostic items, refer to the table below.)
8. Press the Form Feed/Set button to execute the diagnosis.
9. The part is activated and the LCD panel displays [EXEC].
(The display is [READY] when the part is not in operation.)
10. Press the Job Cancel/Back button to terminate the diagnosis.
11. Press the Menu button to terminate all parts in operation and return to the
[IOT Diag Digital Output] display.