DOWNLOAD Sharp MX-C300P / MX-C300PE / MX-C300PL Service Manual ↓ Size: 26.91 MB | Pages: 127 in PDF or view online for FREE

Model
MX-C300P MX-C300PE MX-C300PL
Pages
127
Size
26.91 MB
Type
PDF
Document
Service Manual
Brand
Device
Copying Equipment / Service Manual (Revised May 2016).
File
mx-c300p-mx-c300pe-mx-c300pl.pdf
Date
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Sharp MX-C300P / MX-C300PE / MX-C300PL Service Manual ▷ View online

MX-C300P  TROUBLESHOOTING  7 – 4
(2)Other error code 
The following error is not registered in the history of the error. And, 
the following error can e canceled by the customer.  
U2
00
MFPC EEPROM read/write error
MFPC
O
05
Erroneous detection of account management data
MFPC
O
06
Abnormal value of memory (FlashROM sector management error)
MFPC
O
11
MFPC PWB EEPROM counter check sum error
MFPC
O
U9
00
Communication trouble between the controller and OPU/MFPC
MFPC
O
81
OPU communication trouble (parity)
MFPC
O
82
OPU communication trouble (overrun)
MFPC
O
84
OPU communication trouble (flaming)
* Flaming is the one kind of communication error related with the length and the 
parity bit.
MFPC
O
88
OPU communication trouble (time-out)
MFPC
O
99
OPU language error
MFPC
O
Trouble code
Trouble code content
Trouble 
detection
Mechanism
Option
Electricity
Supply
Main 
code
Sub 
code
Error code
Error name
CE-00
General communication error
CE-01
Network controller trouble
CE-12
LADP address number is over
CE-13
USB memory is not installed
CE-14
USB memory write protect
CE-15
Out if USB memory space
CE-16
USB memory I/O error
CE-17
USB memory other error
MX-C300P  TROUBLESHOOTING  7 – 5
G. Details of error codes and countermeasures
A0-30
Machine configuration error
C1-10
Main charger trouble (K)
E7-20
LSU BD(KC) detection error / LSU LD
deform error (K)
E7-21
LSU LD deform error (C)
E7-22
LSU LD deform error (M)
E7-23
LSU BD(MY) detection error / LSU LD
deform error (Y)
E7-28
LSU-MFPC connection error
E7-29
LSU ASIC frequency error
E7-38
Zoran chip AD adjustment error
EE-EC
Automatic toner density adjustment
error
(Sampling level 76 - 117/139 - 178)
Cause
Wireless LAN PWB is not connected properly
Wireless LAN PWB is broken
Check & Remedy
Check connection of LAN PWB 
Replace LAN PWB 
Cause
The main charger unit (K, C, M, Y) is not installed 
properly.
There is an abnormality in the main charger unit (K, 
C, M, Y).
Disconnection of the high voltage PWB connector.
Breakage of the high voltage harness.
DV PWB trouble.
MFP PWB trouble
Check & Remedy
Check the output of the main charger with SIM8-2.
Check disconnection of the main charger./Replace.
Check disconnection of the high voltage PWB. 
connector. /Replace.
Replace the DV PWB.
Replace the MFP PWB.
Cause
Optical axis shift.
Reduced laser power, lighting error, laser diode 
trouble.
BD PWB trouble.
Harness and connector trouble between the LD/
BD(KC) PWB and the LSUcnt PWB.
Check & Remedy
Use SIM61-1 to check the operation of the LSU.
Check the PWB and connection of the harness in 
the LSU.
Replace the LSU.
Cause
Reduced laser power, lighting error, laser diode 
trouble.
Harness and connector trouble between the LD 
PWB and the LSUcnt PWB.
Check & Remedy
Use SIM61-1 to check the operation of the LSU.
Check the PWB and connection of the harness in 
the LSU.
Replace the LSU.
Cause
Reduced laser power, lighting error, laser diode 
trouble.
Harness and connector trouble between the LD 
PWB and the LSU cnt PWB.
Check & Remedy
Use SIM61-1 to check the operation of the LSU.
Check the PWB and connection of the harness in 
the LSU.
Replace the LSU.
Cause
Optical axis shift.
Reduced laser power, lighting error, laser diode 
trouble.
Harness and connector trouble between the LD/
BD(MY) PWB and the LSU cnt PWB.
Check & Remedy
Use SIM61-1 to check the operation of the LSU.
Check the PWB and connection of the harness in 
the LSU.
Replace the LSU.
Cause
Communication error between the CPU in the 
MFPC PWB and the control ASIC.
Improper connection of the communication 
connector between the MFPC PWB and the LSU 
cnt PWB.
Harness trouble between the MFPC PWB and the 
LSU cnt PWB
MFPC PWB or LSU cnt PWB trouble
Check & Remedy
Check connection of the connector and the 
harness between the MFP PWB and the LSU cnt 
PWB.
Replace the LSU PWB.
Replace the MFPC PWB.
Cause
Oscillation abnormality of the external oscillator 
and the internal oscillating circuit used in the LSU 
ASIC.
LSU ASIC abnormality on the LSUcnt PWB.
Frequency error of image transfer clock from the 
MFPC PWB.
Check & Remedy
Check connection of the connector and the 
harness between the MFPC PWB and the LSUcnt 
PWB..
Replace the MFPC PWB.
Replace the LSU.
Cause
The voltage on MFPC PWB is not stable
The parts on the MFPC PWB are not sol-
dered properly
Check & Remedy
Replace the MFPC PWB.
Cause
Toner density sensor trouble.
Developing unit trouble.
PCU PWB trouble.
Check & Remedy
Replace the toner density sensor.
Replace the developing unit.
Replace the PCU PWB.
MX-C300P  TROUBLESHOOTING  7 – 6
EE-EL
Automatic toner density adjustment
error (Overtoner)
EE-EU
Automatic toner density adjustment
error (Undertoner)
F2-22
Discharge lamp trouble (K)
F2-23
Discharge lamp trouble (CMY)
F2-39
Process thermister trouble
F2-40
Toner density sensor trouble (BK)
F2-41
Toner density sensor trouble (C)
F2-42
Toner density sensor trouble 
(MAGENTA)
F2-43
Toner density sensor trouble 
(Y)
F2-45
K image density sensor trouble
Cause
Toner density sensor trouble.
Charging voltage/ developing voltage trouble, toner 
density trouble, or developing unit trouble.
MFPC PWB trouble.
Check & Remedy
Replace the toner density sensor.
Replace the developing unit.
Replace the MFPC PWB.
Cause
Toner density sensor trouble.
Charging voltage/ developing voltage trouble, toner 
density trouble, or developing unit trouble.
PCU PWB trouble.
Check & Remedy
Replace the toner density sensor.
Replace the developing unit.
Replace the MFPC PWB.
Cause
Contact trouble between the discharge lamp PWB 
(K) and the MFPC PWB.
Discharge lamp PWB (K) trouble.
MFPC PWB trouble.
Check & Remedy
Replace the discharge lamp PWB (K).
Check the harness and the connector.
Replace the MFPC PWB.
Cause
Contact trouble between the discharge lamp PWB 
(C) and the PCU PWB.
Discharge lamp PWB (C) trouble.
MFPC PWB trouble.
Check & Remedy
Replace the discharge lamp PWB (C).
Check the harness and the connector.
Replace the MFPC PWB.
Cause
Process thermister trouble.
Process thermister harness connection trouble.
MFPC PWB trouble
Check & Remedy
Replace the process thermister.
Check connection of the harness and the 
connector.
Replace the MFPC PWB.
Cause
Toner density sensor output abnormality (Sample 
level 25 or less, or 231 or above)
Connection trouble of the connector and the 
harness.
Developing unit trouble. MFPC PWB trouble
Check & Remedy
Replace the toner density sensor.
Harness and connector connection trouble.
Replace the developing unit.
Replace the MFPC PWB.
Cause
Toner density sensor output abnormality (Sample 
level 25 or less, or 231 or above)
Connection trouble of the connector and the 
harness.
Developing unit trouble.
MFPC PWB trouble
Check & Remedy
Replace the toner density sensor.
Harness and connector connection trouble.
Replace the developing unit.
Replace the MFPC PWB.
Cause
Toner density sensor output abnormality (Sample 
level 25 or less, or 231 or above)
Connection trouble of the connector and the 
harness.
Developing unit trouble.
MFPC PWB trouble
Check & Remedy
Replace the toner density sensor.
Harness and connector connection trouble.
Replace the developing unit.
Replace the MFPC PWB.
Cause
Toner density sensor output abnormality (Sample 
level 25 or less, or 231 or above).
Connection trouble of the connector and the 
harness.
Developing unit trouble.
MFPC PWB trouble.
Check & Remedy
Replace the toner density sensor.
Harness and connector connection trouble.
Replace the developing unit.
Replace the MFPC PWB.
Cause
K image density sensor sensitivity adjustment 
trouble.
K image density sensor trouble.
Harness and connector connection trouble.
K image density sensor dirt.
Calibration plate dirt.
Calibration plate solenoid trouble.
MFPC PWB trouble.
Check & Remedy
Replace the K image density sensor.
Check connection of the connectors and the 
harness.
Clean the K image density sensor.
Replace the calibration plate.
Replace the calibration plate solenoid.
Replace the PCU PWB.
Use SIM44-2 to adjust the process control sensor 
sensitivity.
MX-C300P  TROUBLESHOOTING  7 – 7
F2-47
Ozone duct thermister trouble
F2-49
LSU thermister trouble
F2-50
K drum phase sensor trouble
F2-51
CL drum phase sensor trouble
F2-58
Process humidity sensor trouble
F2-64
Toner supply operation trouble (K)
F2-65
Toner supply operation trouble (C)
F2-66
Toner supply operation trouble (M)
F2-67
Toner supply operation trouble (Y)
Cause
The ozone duct thermister trouble.
Harness and connector connection trouble 
between the ozone duct thermistor and the 
MFPC PWB.
MFPC PWB trouble.
Check & Remedy
Check connection of the connectors and the 
harness between the ozone duct thermistor 
and the MFPC PWB.
Replace the MFPC PWB.
Cause
The LSU detection temperature is outside of -28 
degree C - 78 degree C.
LSU thermister trouble.
Harness and connector connection trouble.
MFPC PWB trouble
LSU control PWB trouble.
Check & Remedy
Check connection of the connectors and the 
harness.
Replace the MFPC PWB.
Replace the LSU.
Cause
Drum phase sensor trouble.
Harness and connector connection trouble.
Drum drive section trouble.
MFPC PWB trouble
Check & Remedy
Use SIM30-1 to check the operation of "DHPD_K.".
Replace the drum phase sensor.
Check connection of the connectors and the 
harness.
Repair the drum drive section.
Replace the MFPC PWB.
Cause
Drum phase sensor trouble. (DHPCL)
Harness and connector connection trouble.
Drum drive section trouble.
MFPC PWB trouble.
Check & Remedy
Use SIM30-1 to check the operation of 
"DHPD_CL".
Replace the drum phase sensor.
Check connection of the connectors and the 
harness.
Repair the drum drive section.
Replace the MFPC PWB.
Cause
Process humidity sensor trouble.
Harness and connector connection trouble.
PMFPC PWB trouble.
Check & Remedy
Replace the process humidity sensor.
Check connection of the connectors and the 
harness.
Replace the MFPC PWB.
Cause
Toner motor trouble.
Toner drive clutch trouble.
Toner density sensor trouble.
Connector/harness trouble.
MFPC PWB trouble.
Toner cartridge trouble.
Developing unit trouble.
Check & Remedy
Replace the toner motor.
Replace the toner drive clutch.
Replace the toner density sensor.
Connector/harness trouble.
Replace the MFPC PWB.
Replace the toner cartridge.
Replace the developing unit.
Cause
Toner motor trouble.
Toner drive clutch trouble.
Toner density sensor trouble.
Connector/harness trouble.
MFPC PWB trouble
Toner cartridge trouble.
Developing unit trouble.
Check & Remedy
Replace the toner motor.
Replace the toner drive clutch.
Replace the toner density sensor.
Connector/harness trouble.
Replace the MFPC PWB.
Replace the toner cartridge.
Replace the developing unit.
Cause
Toner motor trouble.
Toner drive clutch trouble.
Toner density sensor trouble.
Connector/harness trouble.
MFPC PWB trouble
Toner cartridge trouble.
Developing unit trouble.
Check & Remedy
Replace the toner motor.  
Replace the toner drive clutch.
Replace the toner density sensor.
Connector/harness trouble.
Replace the MFPC PWB.
Replace the toner cartridge.
Replace the developing unit.
Cause
Toner motor trouble.
Toner drive clutch trouble.  
Replace the toner drive clutch.
Toner density sensor trouble.
Connector/harness trouble.
MFPC PWB trouble
Toner cartridge trouble.
Developing unit trouble.
Check & Remedy
Replace the toner motor.
Replace the toner density sensor.
Connector/harness trouble.
Replace the MFPC PWB.
Replace the toner cartridge.
Replace the developing unit.
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