Sharp MX-M550N

MX-M700N SELF DIAG AND TROUBLE CODE 8 – 13
F1-60 Finisher-inserter communication
trouble
F1-61 Inserter/EEPROM trouble
F1-62 Inserter/reverse sensor trouble
F2-00 Toner control sensor open
F2-02 Toner supply abnormality
F2-04 Improper cartridge
(Life cycle error, etc.)
F2-05 CRUM error
F2-06 CRUM ID error
F2-31 Process control trouble
(Photoconductor surface reflection
rate abnormality)
Details Finisher/inserter communication trouble
Section Inserter
Case 1 Cause Improper connection or disconnection of the
connector and the harness between the finisher
and the inserter unit
Check and
remedy
Check the connector and the harness in the
communication line.
Case 2 Cause Finisher control PWB trouble.
Control PWB (PCU) trouble.
Check and
remedy
Replace the finisher control PWB.
Case 3 Cause Malfunction caused by noises
Check and
remedy
Canceled by turning ON/ OFF the power.
Details Data read failure on turning on the power
Section Inserter
Case 1 Cause EEPROM trouble
Control circuit runaway due to noises
Check and
remedy
Check that the EEPROM is properly installed.
Replace the inserter PWB.
Case 2 Cause Inserter PWB EEPROM access circuit trouble
Check and
remedy
Replace the inserter PWB.
Details Auto adjustment failure on turning on the power
Section Inserter
Case 1 Cause Harness disconnection.
Inserter PWB trouble.
Check and
remedy
Use SIM 3-2 to check the sensor operation.
Details When the toner sensor output value is detected as
smaller than 0.5V or greater than 4.5V for 3 times
continuously at every 500ms after completion of
the auto development adjustment.
Section Engine
Case 1 Cause Connector harness trouble
Connector not connected.
Check and
remedy
Check connection of the toner control sensor.
Check connection of the connector harness to the
main PWB.
Check for disconnection of the harness.
Details Toner remains in the toner bottle when undertoner
is detected by the toner concentration sensor in
the developing unit.
Section Engine
Case 1 Cause Toner concentration sensor trouble.
Toner remaining quantity sensor trouble.
Connector harness trouble for the above sensors.
Check and
remedy
Check connector of hopper unit toner motor (TM1)
Check connector of toner bottle toner motor (TM2)
Check connection of the connector harnesses to
the main PWB.
Check broken harness for above connections.
Check output of the toner concentration sensor
(SIM25-1).
Check output of the toner remaining quantity
sensor (SIM10-2).
Details An improper toner bottle is inserted.
CRUM (IC chip trouble)
Section Engine
Case 1 Cause IC chip trouble Improper cartridge
Check and
remedy
Insert a proper cartridge.
Details Communication with the IC chip cannot be made.
Data write failure to the CRUM or data read failure
from the CRUM occurs 3 times continuously
except for toner cartridge installation detection.
Section Engine
Case 1 Cause IC chip trouble
Improper cartridge
Check and
remedy
Insert a proper cartridge.
Details IC chip trouble
Section Engine
Case 1 Cause Improper cartridge
Check and
remedy
Insert a proper cartridge.
Details Before starting process control, the drum surface
is read by the image density sensor to make the
sensor gain adjustment so that the output is fixed
to a certain level.
Though the sensor gain is changed, the output is
not fixed to a certain level.
Section Engine
Case 1 Cause Image density sensor trouble
Check and
remedy
Use SIM 44-02 to perform the process control
sensor gain adjustment.