Finisher Punch Registration Sensor Trouble (Mx-Fnx2); Finisher Backup Ram Trouble; Finisher Punch Backup Ram Trouble; Process Thermistor Trouble - Sharp MX-2300 G Service Manual

F1-36 Finisher punch registration sensor
trouble (MX-FNX2)
Trouble content Sensor input value abnormality
Section PCU
Case 1 Cause Sensor breakage, harness disconnection, saddle
finisher control PWB trouble (MX-FNX2), punch
control PWB trouble (MX-FNX2)
Check Use SIM3-2 to check the operation of the punch
and timing sensor (FPTD).
remedy Replace the finisher punch unit (Replace the punch
control PWB.).
F1-37

Finisher backup RAM trouble

Trouble content Backup RAM data garbled
Section PCU
Case 1 Cause Finisher control PWB trouble, malfunction due to
electrical noises
Check Replace the finisher control PWB.
and
remedy
F1-38

Finisher punch backup RAM trouble

(MX-FNX2)
Trouble content Punch unit backup RAM data garbled
Section PCU
Case 1 Cause Punch control PWB trouble, malfunction due to
electrical noises
Check Replace the punch control PWB.
and
remedy
F1-39 Finisher punch dust sensor trouble
(MX-FNX2)
Trouble content Punch dust sensor detection trouble
Section PCU
Case 1 Cause Sensor breakage, harness disconnection, finisher
control PWB trouble (MX-FNX2), punch control PWB
trouble (MX-FNX2)
Check Use SIM3-2 to check the operation of the sensor
and punch dust sensor (FPDD).
remedy Replace the finisher control PWB or the punch control
PWB.
F1-40 Saddle finisher punch power
interruption trouble (MX-FNX2)
Trouble content When the punch unit power interruption is detected.
Section PCU
Case 1 Cause Harness disconnection, punch control PWB trouble
Check Use SIM3-3 to check the operation punch motor
and (FPNW).
remedy Replace the finisher punch unit (Replace the punch
control PWB.).
F1-50 Finisher incompatibility trouble
Trouble content Detection of finisher incompatible with MX-2700**/
2300**
Section PCU
Case 1 Cause Connection of the AR-F13, etc. which is incompatible
with MX-2700**/2300** is detected.
Check Connect the MX-FNX1/MX-FNX2.
and
remedy
MX-2300/2700 N/G SELF DIAG AND TROUBLE CODE 8 – 15
F2-39

Process thermistor trouble

Trouble content Process thermistor open
Section PCU
Case 1 Cause Process thermistor harness connection trouble
Check Check the connection of the harness, connector of the
and process thermistor.
remedy
Case 2 Cause Process thermistor trouble
Check Check the connection of the process thermistor.
and
remedy
Case 3 Cause PCU PWB trouble
Check Check the PCU PWB.
and
remedy
F2-40 Toner empty sensor abnormality
(BLACK)
Trouble content Toner empty sensor output abnormality. Sample level
25 or less or 231 or above.
Section PCU
Case 1 Cause The connector is not installed.
Check Check the connection of the connector harness to the
and PCU PWB. Check the connection of the toner empty
remedy sensor.
Case 2 Cause Connector harness trouble
Check Check the harness disconnection.
and
remedy
Case 3 Cause Cartridge trouble
Check Check the cartridge connection.
and
remedy
F2-41 Toner empty sensor abnormality
(CYAN)
Trouble content Toner empty sensor output abnormality. Sample level
25 or less or 231 or above.
Section PCU
Case 1 Cause The connector is not installed.
Check Check the connection of the connector harness to the
and PCU PWB. Check the connection of the toner empty
remedy sensor.
Case 2 Cause Connector harness trouble
Check Check the harness disconnection.
and
remedy
Case 3 Cause Cartridge trouble
Check Check the cartridge connection.
and
remedy