5-16
Confidential
1.3.8 Check sensor operation (Function code 32)
<Function>
This function is used to check that sensors are operating normally.
<Operating Procedure>
(1) Press the [▲] or [▼] in the initial state of maintenance mode to display “MAINTENANCE
32” on the LCD, and press the [OK]. “CVRCPONT********” is displayed on the LCD.
The table below summarizes the displays on the LCD, sensor names and detection status.
*1
Available on models without toner box
*2
Available on models with toner box
(2) Change the conditions subject to sensor detection 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.
(3) When you press and hold the [Go] for five seconds, this operation is finished and the
machine returns to the initial state of maintenance mode.
LCD Sensor name
Detection status
With display No display
CV Front cover sensor Front cover closed Front cover open
RC
Back cover/duplex tray sensor Back cover closed and
Duplex tray set
Back cover open and
No duplex tray
PO Eject sensor No paper Paper set
NT
*1
New toner/Toner cartridge
detect sensor
OFF/
Toner cartridge set
ON/
No toner cartridge
NP
*2
New process cartridge/process
cartridge detect sensor
OFF/
Process cartridge
set
ON/
No
process cartridge
NB
*2
New toner box/Toner box
cartridge detect sensor
OFF/
Toner box cartridge set
ON/
No toner box cartridge
NT
*2
Toner amount sensor Toner not full Toner full
C1
Paper feed sensor T1 closed and
No paper
T1 open and
Paper set
RM Registration front sensor No paper Paper set
RA Registration rear sensor No paper Paper set
MP MP paper empty sensor No paper Paper set
P1 Paper empty sensor No paper Paper set
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