Check Sensor Operation (Function Code: 32) - Brother HL-L5000D Service Manual

1.3.8 Check sensor operation (function code: 32)

<Function>
This function is used to check whether the sensors, solenoids, and clutches are operating normally.
<Operating Procedure>
Non touch panel models
(1) Press the [▲] or [▼] key in the initial
state of maintenance mode to display
"MAINTENANCE 32" on the LCD, and
press the [OK] key. "TNNT--C2P2****" is
displayed on the LCD. The machine
makes buzzing sound continuously.
Information related to the LT, TT, and MX
are not displayed on the LCD when
those are not connected.
Note:
• Press the [OK] key to stop the
buzzing sound.
(2) Pressing the [Go] key changes the
display to the next item.
(3) Change the conditions subject to sensor
detection shown below and check that
the display on the LCD changes
depending on the sensor status. For
example, feed the paper through the
registration front/rear sensor, open the
front cover or back cover, remove the
toner cartridge, or create paper jam at
the exit.
(4) When you press the [X] key, this
operation is finished and the machine
returns to the initial state of maintenance
mode.
<Sensor check>
The table below summarizes the displays on the LCD, sensor names and detection status.
LCD
TN Toner amount detection sensor
NT New toner sensor
ST Output tray stack sensor
C2 T2LT Paper feed sensor
P2 T2LT paper empty sensor
MC MX back cover sensor
TT TT connection sensor
Sensor name
5-15
Touch panel models
(1) Press the [3], and then the [2] key in the
initial state of maintenance mode. Either
of the following examples is displayed
on the LCD
e.g. TNNTSTC2P2**TT**
e.g. TNNTST----MCTT
The machine makes buzzing sound
continuously.
Information related to the LT, TT, and MX
are not displayed on the LCD when
those are not connected.
Note:
• Press the [SET] key to stop the
buzzing sound.
(2) Pressing the [Mono] key changes the
display to the next item.
(3) Change the conditions subject to sensor
detection shown below and check that
the display on the LCD changes
depending on the sensor status. For
example, feed the paper through the
registration front/rear sensor, open the
front cover or back cover, remove the
toner cartridge, or create paper jam at
the exit.
(4) When you press the [STOP] key, this
operation is finished and the machine
returns to the initial state of maintenance
mode.
Detection status
With display
Beam obstructed
Sensor not pressed
Ejected paper not yet full Ejected paper full
Paper tray 2 closed
No paper
MX back cover closed
TT connected
No display
Beam not obstructed
Sensor pressed
Paper tray 2 open
Paper set
MX back cover open
TT not connected
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