Ricoh J-P2 Service Manual page 146

SC TABLE
SC No. Item
SC Tray 4 error (3 When the main switch is
504-02 Tray Paper turned or when the tray is set
Feed Unit) and if the upper limit is already
detected, the lift motor turns on
to lower the bottom plate until
the lift sensor goes off.
If the motor turns on for 7
seconds or more, the machine
asks the user to reset the tray.
If this condition occurs 3
consecutive times, this SC is
generated.
Fusing fan The BCU does not receive the
SC 530
motor error lock signal (CN210-B5) 5
seconds after turning on the
fusing fan.
SC 541 Heating roller The temperature measured by
thermistor error the heating roller thermistor
does not reach 7 °C for ten
seconds.
SC 542 Heating roller After the main switch is turned
on or the cover is closed, the
warm-up error
heating roller temperature
does not reach the ready
temperature within 60 seconds
during fusing unit warm-up.
SC 543 Heating roller The detected fusing
fusing lamp temperature stays at 200°C or
overheat more for five seconds.
Definition Possible Cause
• Defective tray lift
motor or connector
disconnection
• Defective lift sensor
or connector
disconnection
• Defective fusing fan
motor or connector
disconnection
• Defective BCU
• Loose connection of
the heating roller
thermistor
• Defective heating
roller thermistor
• Defective BCU
• Heating roller fusing
lamp broken
• Defective heating
roller thermistor
• Defective BCU
• Defective PSU
• Defective BCU
Related
Troubleshooting Procedure
SCs
1. Turn the main switch off and on.
2. Check the cable connections.
3. Check and/or replace the defective
component.
1. Turn the main switch off and on.
2. Check the connector and/or replace
the fusing fan motor.
3. Replace the BCU.
1. Check if the heating roller thermistor
is firmly connected.
2. Replace the fusing unit.
3. Replace the BCU.
1. Check if the heating roller thermistor
is firmly connected.
2. Replace the fusing unit.
3. Replace the BCU.
1. Replace the PSU.
2. Replace the BCU.
4-24
17 January, 2003
Type
A
A
A