Cloth Screen; Sensors - Ricoh C231 Service Manual

4. SERVICE TABLES
4.1 SERVICE CALL CODES
*: Status code unique to the C237 model
No.
E-00 Clamper Motor Failure
The MPU cannot detect the master clamper
position sensor signal (open or closed) within 1.2
seconds after the clamper motor turns on.
E-01
Cutter Failure
The cutter HP sensor does not turn on within 3
seconds after the cutter motor turns on.
If the master is not cut at the end of the master
making. The drum master detection sensor is used
to check if the black cover at the trailing part of the
drum cloth screen is covered by the master just
before the drum returns the home position. In this
case, the SC is cleared once the power is off.
E-02
Paper Table Drive Failure
The paper height sensor or the table lower limit
sensor does not turn on within 7 seconds after the
table drive motor turns on.
E-04 Thermal Head Overheat
Temperature of the thermal head is greater than
54 C when the Start key is pressed.
E-06
Main Motor Lock
The CPU cannot detect the feed start timing sensor
signal within 2 seconds after the main motor turns
on, or the sensor remains on for more than 0.5
seconds.
E-09 Thermal Head Thermistor Open
The thermistor output voltage (CN109-A1) is
greater than 4.9 volts.
E-10 Thermal Head Drive Failure
The CPU detects an abnormal condition in the
thermal head drive circuit.
SM
Description/Definition
4-1
SERVICE CALL CODES
Points to Check
Mechanical interference
with the clamper drive
Master clamper sensors
Clamper motor
Clamper drive
mechanism
Master cut error
occurred
Cutter switch
Cutter motor
Cutter drive mechanism
Paper table drive motor
Paper height sensor or
table lower limit sensor
Mechanical interference
with the paper table
drive
Thermal head
Thermistor of the
thermal head (short
circuit)
Wait for the thermal
head to cool down
Main motor
Power to the main motor
Feed start timing sensor
Mechanical interference
with the drum drive
Thermal head thermistor
Thermal head connector
Thermal head
MPU
Thermal head connector
and harness
C231/C237/C238