E7-90 Communication Trouble Between The Controller And The Engine; Ee-Ec Auto Developer Adjustment Trouble; Ee-El Auto Developer Adjustment Trouble; Ee-Eu Auto Development Adjustment Trouble - Sharp MX-2300 G Service Manual

E7-90 Communication trouble between the
controller and the engine
Trouble content Communication trouble between the MFP and the
PCU (MFP detection)
Communication establishment error/Framing/Parity/
Protocol error
Section MFP
Case 1 Cause PCU PWB connector connection trouble
Check Check the connector connection between the PCU
and PWB and the MFPcnt PWB.
remedy
Case 2 Cause Harness trouble between the PCU PWB and the
MFPcnt PWB
Check Check the harness between the PCU PWB and the
and MFPcnt PWB.
remedy
Case 3 Cause Broken connector pin of the PCU PWB mother board
Check Check grounding of the machine.
and
remedy

EE-EC Auto developer adjustment trouble

(The sample level for every rotation is
other than 128 ± 10).
Trouble content Auto developer adjustment trouble (The sample level
for every rotation is other than 128 ± 10.) <Detection
only with SIM25-2, no trouble memory, only display>
Section PCU
Case 1 Cause Toner density sensor trouble, charging voltage/
developing voltage trouble, toner density trouble,
developing unit trouble, PCU PWB trouble
Check Use SIM25-2 to execute the auto development
and adjustment.
remedy

EE-EL Auto developer adjustment trouble

(overtoner error)
Trouble content The sample level is 76 or below, or the control voltage
is 208V or above. <Detection only with SIM25-2, no
trouble memory, only display>
Section PCU
Case 1 Cause Toner density sensor trouble, charging voltage/
developing voltage trouble, toner density trouble,
developing unit trouble, PCU PWB trouble
Check Use SIM25-2 to execute the auto development
and adjustment.
remedy

EE-EU Auto development adjustment trouble

(Under-toner abnormality)
Trouble content The sample level is 178 or above, or the control
voltage is 51V or below. <Detection only with SIM25-
2, no trouble memory, only display>
Section PCU
Case 1 Cause Toner density sensor trouble, charging voltage/
developing voltage trouble, toner density trouble,
developing unit trouble, PCU PWB trouble
Check Use SIM25-2 to execute the auto development
and adjustment.
remedy
MX-2300/2700 N/G SELF DIAG AND TROUBLE CODE 8 – 13
F1-00 Finisher communication trouble
(Machine side detection)
Trouble content Communication line test error when turning on the
power or after canceling an exclusion simulation.
Communication error with the finisher
Section PCU
Case 1 Cause Malfunction due to noises
Check Turn OFF/ON the power to cancel.
and
remedy
Case 2 Cause PCU finisher connector or harness connection error or
disconnection
Check Check the connector and harness in the
and communication line.
remedy
Case 3 Cause Finisher control PWB trouble
Check Replace the finisher control PWB.
and
remedy
Case 4 Cause Control PWB (PCU) trouble
Check Replace the PCU PWB.
and
remedy
F1-02 Saddle finisher transport motor trou-
ble
Trouble content Transport drive motor trouble
Section PCU
Case 1 Cause Motor lock, motor RPM abnormality, motor
overvoltage, saddle finisher control PWB trouble
Check Use SIM3-3 to check the operation of the transport
and motor (FFM).
remedy Replace the finisher control PWB.
F1-03 Finisher paddle motor trouble (MX-
FNX2), finisher swing motor trouble
(MX-FNX1)
Trouble content Paddle motor operation trouble (MX-FNX2)
Swing motor operation trouble (MX-FNX1)
Section PCU
Case 1 Cause Motor lock, motor RPM abnormality, motor
overvoltage, finisher control PWB trouble
Check Use SIM3-3 to check the operation of the motor (FPM/
and FSWM).
remedy Replace the finisher control PWB.
F1-08 Finisher stapler shift motor trouble
Trouble content Stapler shift motor operation trouble
Section PCU
Case 1 Cause Motor lock, motor RPM abnormality, motor
overvoltage, finisher control PWB trouble
Check Use SIM3-3 to check the operation of the staple motor
and (FSM).
remedy Replace the finisher control PWB.
F1-10 Finisher staple motor abnormality
Trouble content Staple operation trouble
Section PCU
Case 1 Cause Motor lock, motor RPM abnormality, motor
overvoltage, saddle finisher control PWB trouble
Check Use SIM3-3 to check the operation of the staple motor
and (FFSM).
remedy Replace the finisher control PWB.