Brother HL-4200CN Service Manual page 253

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
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
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
(For the contents of the diagnostic items, refer to the table below.)
7. Press the Form Feed/Set button to execute the diagnosis.
8. The part is activated and the LCD panel displays [EXEC].
(The display is [READY] when the part is not in operation.)
9. Press the Job Cancel/Back button to terminate the diagnosis.
10. Press the Menu button to terminate all parts in operation and return to the
[IOT Diag Digital Output] display.
Digital output test code table
Menu
No.
DRIVE ASSY MAIN ON
DO-0 (NORMAL SPEED)
DRIVE ASSY MAIN ON
(HALF SPEED)
DO-1
DRIVE ASSY MAIN OFF
DO-2
DUP MOTOR ASSY ON
DO-3 (FORWARD NORMAL
SPEED)
DUP MOTOR ASSY ON
(FORWARD HALF SPEED)
DO-4
DUP MOTOR ASSY ON
(FORWARD DOUBLE
DO-5
SPEED)
DUP MOTOR ASSY ON
(REVERSE NORMAL
DO-6
SPEED)
DUP MOTOR ASSY ON
(REVERSE HALF SPEED)
DO-7
Part/signal name
V-47
and buttons.
and buttons.
and
Test method
<WARNING!> <CAUTION!>
Check by hearing and visually that
the motor rotates in normal mode.
<WARNING!> <CAUTION!>
Check by hearing and visually that
the motor rotates in half-speed
mode.
<WARNING!> <CAUTION!>
Check by hearing and visually that
stop the motor rotates.
<WARNING!> <CAUTION!>
Check by hearing and visually that
the motor rotates in normal mode.
<WARNING!> <CAUTION!>
Check by hearing and visually that
the motor rotates clockwise in half-
speed mode.
<WARNING!> <CAUTION!>
Check by hearing and visually that
the motor rotates clockwise in
double-speed mode.
<WARNING!> <CAUTION!>
Check by hearing and visually that
the motor rotates counterclockwise
in normal mode.
<WARNING!> <CAUTION!>
Check by hearing and visually that
the motor rotates counterclockwise
in half-speed mode.
buttons.
Reference
BSD
2.4.1
2.4.1
2.4.1
2.9.5
2.9.5
2.9.5
2.9.5
2.9.5