Ricoh C231 Service Manual page 599

4. TROUBLESHOOTING
4.1 SERVICE CALL CODES
NOTE: 1) If the problem concerns electrical circuit boards, first disconnect then
reconnect the connectors before replacing the PCBs.
2) If the problem concerns a motor lock, first check the mechanical load
before replacing motors or sensors.
No. Description/Definition
E-00 Clamper Motor Failure
The MPU cannot detect the clamper
position sensor signal (open or closed)
within 3.0 seconds after the clamper motor
turns on.
E-01 Cutter error
The cutter HP sensor does not turn on
within 3.0 seconds after the cutter motor
turns on.
E-02 Paper Table Drive error
The paper height sensor or the table lower
limit sensor does not turn on within 7.5
seconds after the table motor turns on.
Paper height sensor 1 or 2 does not turn on
within 1 second after the paper height
sensor 1 or 2 turn on.
E-04 Thermal Head Overheat
Temperature of the thermal head is greater
than 65°C when the Start key is pressed.
E-06 Main Motor Lock
The CPU cannot detect the master eject
position sensor (drum HP) signal within 5.0
seconds after the main motor turns on.
E-09 Thermal Head Thermistor Open
The thermistor output voltage is over 4.432
volts.
E-10 Thermal Head Energy Pulse error
The CPU detects an abnormal ID signal
from the thermal head energy control pulse.
SM
SERVICE CALL CODES
Points to Check
Clamper drive
Clamper sensors
Clamper motor
MPU board
Main motor encoder
Master eject position sensor
Cutter drive
Cutter switch
Cutter motor
Paper table drive
Paper table motor
Paper height sensor 1 or 2
Paper table lower limit sensor
Gears
Paper table spring
Overheat (wait for the thermal head
to cool down)
Thermal head
Main motor drive
Main motor
Motor drive board
Master eject position sensor
Thermal head thermistor
Thermal head connector
Thermal head connector
Thermal head
MPU
4-1 C267