Toshiba E-STUDIO202S - Page 84

e-STUDIO202S SIMULATION, TROUBLE CODES 10 - 19
L3 00 Content Scanner return trouble
Detail When the mirror base is returned for the
specified time (6 sec) in mirror initializing
after turning on the power, the mirror home
position sensor (MHPS) does not turn ON.
Or when the mirror base is returned for the
specified time (about 6 sec) after start of
copy return, the mirror home position
sensor (MHPS) does not turn ON.
Cause Mirror unit abnormality
Scanner wire disconnection
Origin detection sensor abnormality
Mirror motor harness abnormality
Check
and
remedy
Use SIM 1-1 to check the mirror
reciprocating operations.
When the mirror does not return.
Check for disconnection of the scanner
wire.
Check the harness and the connector
between the mirror motor and the MCU
PWB.
Replace the mirror unit.
Replace the MCU PWB.
When the mirror does feed.
Use SIM 1-2 to check the mirror home
position sensor.
L4 01 Content Main motor lock detection
Detail When the main motor encoder pulse is not
detected for 1000 msec.
Cause Main motor unit abnormality
Improper connection or disconnection the
main motor and the harness.
MCU PWB abnormality
Check
and
remedy
Use SIM 25-01 to check the main motor
operations.
Check connection of the main motor
harness/connector.
Replace the main motor.
Replace the MCU PWB.
32 Content Exhaust fan motor lock detection trouble
Detail The error detection is started after 2 sec
from starting rotation of the exhaust fan
motor.
1) The continuous rotation state of 250ms
is not detected for 1 sec after starting
detection.
2) When the lock sensor (in the exhaust
fan) detects the HIGH level (unstable)
after detection the lock state (stable
state).
Cause Exhaust fan motor connector connection
trouble
Exhaust fan motor trouble
MCU PWB trouble
Check
and
remedy
Exhaust fan motor connector connection
check
Exhaust fan motor replacement
Replace the MCU PWB.
Main
code
Sub
code
Details of trouble
L6 10 Content Polygon motor lock detection
Detail The lock signal (specified rpm signal) does
not return within a certain time (about 20
sec) from starting the polygon motor
rotation.
Cause Polygon motor unit abnormality
Improper connection or disconnection of
the polygon motor and the harness.
MCU PWB abnormality
Check
and
remedy
Use SIM 61-1 to check the polygon motor
operations.
Check connection of the polygon motor
harness/connector.
Replace the polygon motor.
Replace the MCU PWB.
U2 04 Content EEPROM read/write error (Serial
communication error)
Detail EEPROM access process error
Cause EEPROM abnormality
Check
and
remedy
Check that the EEPROM is properly set.
Cancel by turning OFF/ON the power.
Replace the MCU PWB.
11 Content Counter check sum error (EEPROM)
Detail Check sum error of the counter area in the
EEPROM
Cause EEPROM abnormality
Check
and
remedy
Check that the EEPROM is properly set.
Use SIM 16 to cancel the trouble.
Replace the MCU PWB.
40 Content CRUM chip communication error
Detail An error occurs in MCU-CRUM chip
communication.
Cause CRUM chip trouble
Defective contact of developing unit
MCU PWB trouble
Check
and
remedy
Replace the CRUM chip.
Check installation of the developing unit.
Cancel by turning OFF/ON the power.
Replace the MCU PWB.
Main
code
Sub
code
Details of trouble