لمینت MKP
1402-06-04
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A0-01 PCU ROM abnormality
PCU ROM content trouble Firmware upgrade is not made properly due to power OFF, etc copyir.com
A0-02 SCU ROM abnormality
SCU ROM content trouble Some part of SFU is not upgraded during upgrading of the firmware copyir.com
A0-10 Controller ROM error
SFU combination error in the controller SFU upgrade was not properly made when upgrading the firmware copyir.com
A0-11 IF version discrepancy (CTL-PCU)
Combination error between CTL and PCU Combination error between CTL and PCU
A0-12 IF version discrepancy (CTL-SCU)
Combination error between CTL and SCU Combination error between CTL and SCU
A0-20 Machine level error (CTL detection)
Combination error between the machine production/ remodeling and the firmware Combination error between the machine production/ remodeling and the firmware
A0-21 Machine level error (PCU detection)
Combination error between the machine production/ remodeling and the firmware Combination error between the machine production/ remodeling and the firmware
A0-22 Machine level error (SCU detection)
Combination error between the machine production/ remodeling and the firmware Combination error between the machine production/ remodeling and the firmware
E6-10 Back-face shading trouble black correction (DSPF)
CCD black scan level abnormality when the copy lamp is turned off copyir.com (MX-3501N/4501N) Installation error of the CCD unit flat cable CCD unit abnormality SCU PWB abnormality
E6-11 Shading trouble white correction (DSPF)
CCD white scan level abnormality when the copy lamp is on copyir.com (MX-3501N/4501N) Installation error of the CCD unit flat cable Dirt on the mirror, the lens, or the reference white plate copyir.com Copy lamp lighting trouble CCD unit abnormality SCU PWB abnormality
E6-14 Back-face SCAN-ASIC trouble
Written register value cannot be read correctly SCU PWB abnormality
E7-00 System memory access error
System memory trouble (Tandem memory cannot be guaranteed copyir.com ) Access to system memory cannot be made copyir.com Expansion memory instillation error Garbled data Dirt on the memory pin
E7-01 System data trouble
ICU data trouble occurs copyir.com ICU image transfer trouble
E7-03 HDD trouble
HDD connection trouble File control area data trouble (when FAT is broken) The HDD is not properly installed to the MFPcnt PWB The HDD does not work properly copyir.com MFPcnt PWB trouble
E7-05 Local memory access error
Local memory cannot be accessed copyir.com Local memory installation abnormality Dirt on local memory pin Garbled data
E7-06 Decode error trouble: Compression decode error (A compression file cannot decompressed copyir.com
A decode error occurs when forming an image copyir.com Compression data abnormality HDD connection abnormality Data are garbled in image compression/send copyir.com MFPcnt PWB abnormality Local memory access trouble
E7-08 Local memory specifications error
DIMM of different specification is detected in the local memory slot copyir.com DIMM of different specification is installed to the local memory slot copyir.com
E7-09 Local memory combination error
Local memory slot combination error DIMM of other than 256MB is installed to the default slot copyir.com DIMM of other than 256MB is installed to the expansion slot copyir.com
E7-10 Shading trouble (Black correction)
CCD black scan level abnormality when the copy lamp is turned off copyir.com Installation error of the CCD unit flat cable CCD unit abnormality SCU PWB abnormality
E7-11 Shading trouble (White correction)
CCD white scan level abnormality when the copy lamp is on copyir.com Installation error of the CCD unit flat cable Dirt on the mirror, the lens, or the reference white plate copyir.com Copy lamp lighting trouble CCD unit abnormality SCU PWB abnormality
E7-14 SCAN-ASIC trouble
Written register value cannot be read correctly SCU PWB abnormality
E7-20 LSU BD detection trouble
LSU BD signal is not detected copyir.com Disconnection or improper connection of harness and connector between LD/BD PWB and LSUcnt PWB 1) Optical axis shift 2) BK laser deterioration, power reduction 3) BD PWB trouble
E7-21 LSU LD deterioration trouble
The color laser does not light up normally copyir.com Disconnection or improper connection of harness and connector between LD PWB and LSUcnt PWB Y/M/C laser deterioration
E7-28 LSU control ASIC connection abnormality
Access error between the CPU of the PCU PWB and the LSU control ASIC <When this trouble occurs in the initial process on turn on the power> Communication connector trouble between the PCU PWB and the LSUcnt PWB (interface PWB) copyir.com Harness trouble copyir.com <When this trouble occurs on starting printing/during printing, and SIM61-1 is used to check the LSU unit operation for each of B/W and COLOR and the judgment is NG copyir.com > Connected the connector between the PCU PWB and the LSUcnt PWB (interface PWB) / Harness trouble PCU PWB or LSUcnt PWB (interface PWB) trouble
E7-29 LSU-ASIC frequency abnormality
Oscillation trouble of the external oscillator used in LSU-ASIC and the internal oscillation circuit Trouble of the oscillator on the LSU-ASIC PWB, the resistor and capacitor for the oscillation circuit, and the LSU-ASIC itself copyir.com
E7-50 Engine connection trouble
Unknown PWB identification information is detected in the PCU PWB copyir.com A PWB which is incompatible with the machine specifications is connected copyir.com A firmware which is incompatible with the machine specifications is used copyir.com
E7-55 PWB information sum error (Engine detection)
EEPROM PWB information sum error 1) EEPROM device error 2) EEPROM device contact failure 3) Device access error due to noises
E7-60 Controller connection trouble (Engine detection)
Unknown PWB kind information is detected in the MFPcnt PWB copyir.com A PWB/firmware which is not compatible with the machine specifications is connected copyir.com Controller PWB trouble A firmware which is not compatible with the machine specifications is applied copyir.com
E7-61 Controller connection trouble (Engine)
MFPcnt PWB connection trouble Compatibility trouble between the controller and the engine Combination trouble of the controller PWB and the engine
E7-62 Controller connection trouble (Scanner)
Controller connection trouble Compatibility trouble between the controller and the scanners Combination trouble between the controller PWB and the engine
E7-65 PWB information sum error (Controller detection)
EEPROM PWB information sum error 1) EEPROM device trouble 2) EEPROM device contact failure 3) Device access error due to noises
E7-70 Scanner connection trouble
Unknown identification information is detected in the SCU PWB copyir.com SCU PWB trouble A firmware which is incompatible with the machine specifications is connected copyir.com
E7-75 PWB information sum error (Scanner detection)
EEPROM PWB information sum error 1) EEPROM device trouble 2) EEPROM device contact failure 3) Device access error due to noises
E7-80 Communication trouble between the controller and the scanner
Communication trouble between the MFP and the scanner MFP detection Communication establishment error/Framing/Parity/ Protocol error SCU PWB connector connection trouble Harness trouble between the SCU PWB and the MFPcnt PWB Broken connector pin of the SCU PWB mother board
E7-90 Communication trouble between the controller and the engine
Communication trouble between the MFP and the PCU (MFP detection) Communication establishment error/Framing/Parity/ Protocol error PCU PWB connector connection trouble Harness trouble between the PCU PWB and the
MFPcnt PWB Broken connector pin of the PCU PWB mother board
EE-EC Auto developer adjustment trouble (The sample level for every rotation is other than 128)
Auto developer adjustment trouble (The sample level for every rotation is other than 128 copyir.com ) <Detection only with SIM25-2, no trouble memory, only display> Toner density sensor trouble, charging voltage/ developing voltage trouble, toner density trouble, developing unit trouble, PCU PWB trouble
EE-EL Auto developer adjustment trouble (overtoner error)
The sample level is 76 or below, or the control voltage is 208V or above copyir.com <Detection only with SIM25-2, no trouble memory, only display> Toner density sensor trouble, charging voltage/ developing voltage trouble, toner density trouble, developing unit trouble, PCU PWB trouble
EE-EU Auto development adjustment trouble (Under-toner abnormality)
The sample level is 178 or above, or the control voltage is 51V or below copyir.com <Detection only with SIM25- 2, no trouble memory, only display> Toner density sensor trouble, charging voltage/ developing voltage trouble, toner density trouble, developing unit trouble, PCU PWB trouble
F1-00 Finisher communication trouble (Machine side detection)
Communication line test error when turning on the power or after canceling an exclusion simulation copyir.com Communication error with the finisher Malfunction due to noises PCU finisher connector or harness connection error or disconnection Finisher control PWB trouble Control PWB (PCU) trouble
F1-02 Saddle finisher transport motor trouble
Transport drive motor trouble Motor lock, motor RPM abnormality, motor overvoltage, saddle finisher control PWB trouble
F1-03 Finisher paddle motor trouble (MXFNX2), finisher swing motor trouble (MX-FNX1)
Paddle motor operation trouble (MX-FNX2) Swing motor operation trouble (MX-FNX1) Motor lock, motor RPM abnormality, motor overvoltage, finisher control PWB trouble
F1-08 Finisher stapler shift motor trouble
Stapler shift motor operation trouble Motor lock, motor RPM abnormality, motor overvoltage, finisher control PWB trouble
F1-10 Finisher staple motor abnormality
Staple operation trouble Motor lock, motor RPM abnormality, motor overvoltage, saddle finisher control PWB trouble
F1-11 Finisher bundle process motor abnormality
Bundle process motor trouble Motor lock, motor RPM abnormality, motor overvoltage, finisher control PWB trouble (MX-FNX2)
F1-15 Finisher tray lift motor abnormality
Lift motor trouble Motor lock, motor RPM abnormality, motor overvoltage, finisher control PWB trouble
F1-19 Finisher pre-alignment motor abnormality
Pre-alignment motor trouble Motor lock, motor RPM abnormality, motor overvoltage, saddle finisher control PWB trouble
F1-20 Finisher after-alignment motor abnormality
After-alignment motor trouble Motor lock, motor RPM abnormality, motor overvoltage, finisher control PWB trouble
F1-21 Finisher fan motor abnormality (MXFNX1), Finisher interface fan motor abnormality (MX-FNX2)
Cooling fan motor trouble (MX-FNX1) Interface transport fan motor trouble (MX-FNX2) Motor lock, motor RPM abnormality, motor overvoltage, finisher control PWB trouble
F1-31 Finisher folding sensor trouble (MXFNX2)
Sensor input value abnormality Sensor breakage, harness disconnection, finisher control PWB trouble (MX-FNX2)
F1-32 Communication trouble between the finisher and the punch unit (MX-FN2)
Finisher and punch unit communication trouble (MXFNX2) Malfunction due to noises Connector/harness connection error or disconnection between the finisher and the punch unit Finisher control PWB trouble (MX-FNX2) Control PWB (PCU) trouble
F1-33 Finisher punch shift motor trouble
Punch shift motor operation abnormality Motor lock, motor RPM abnormality, motor overvoltage, finisher control PWB trouble, punch control PWB trouble (MX-FNX2)
F1-34 Finisher punch motor trouble
Punch motor operation abnormality Motor lock, motor RPM abnormality, motor overvoltage, finisher control PWB trouble, punch control PWB trouble (MX-FNX2)
F1-35 Finisher punch side registration sensor trouble (MX-FNX2)
Sensor input value abnormality Sensor breakage, harness disconnection, saddle finisher control PWB trouble (MX-FNX2), punch control PWB trouble (MX-FNX2)
F1-36 Finisher punch registration sensor trouble (MX-FNX2)
Sensor input value abnormality Sensor breakage, harness disconnection, saddle finisher control PWB trouble (MX-FNX2), punch control PWB trouble (MX-FNX2)
F1-37 Finisher backup RAM trouble
Backup RAM data garbled Finisher control PWB trouble, malfunction due to electrical noises
F1-38 Finisher punch backup RAM trouble (MX-FNX2)
Punch unit backup RAM data garbled Punch control PWB trouble, malfunction due to electrical noises
F1-39 Finisher punch dust sensor trouble (MX-FNX2)
Punch dust sensor detection trouble Sensor breakage, harness disconnection, finisher control PWB trouble (MX-FNX2), punch control PWB trouble (MX-FNX2)
F1-40 Saddle finisher punch power interruption trouble (MX-FNX2)
When the punch unit power interruption is detected copyir.com Harness disconnection, punch control PWB trouble
F1-50 Finisher incompatibility trouble
Detection of finisher incompatible with MX-3500**/ 4500**/3501**/4501** Connection of the AR-F13, etc copyir.com which is incompatible with MX-3500**/4500**/3501**/4501** is detected copyir.com
F2-39 Process thermistor trouble
Process thermistor open Process thermistor harness connection trouble Process thermistor trouble PCU PWB trouble
F2-40 Toner empty sensor abnormality (BLACK)
Toner empty sensor output abnormality copyir.com Sample level 25 or less or 231 or above copyir.com The connector is not installed copyir.com Connector harness trouble Cartridge trouble
F2-41 Toner empty sensor abnormality (CYAN)
Toner empty sensor output abnormality copyir.com Sample level 25 or less or 231 or above copyir.com The connector is not installed copyir.com Connector harness trouble Cartridge trouble
F2-42 Toner empty sensor abnormality (MAGENTA)
Toner empty sensor output abnormality copyir.com Sample level 25 or less or 231 or above copyir.com The connector is not installed copyir.com Connector harness trouble Cartridge trouble
F2-43 Toner empty sensor abnormality (YELLOW)
Toner empty sensor output abnormality copyir.com Sample level 25 or less or 231 or above copyir.com The connector is not installed copyir.com Connector harness trouble Cartridge trouble
F2-44 Black exclusive image density sensor trouble (Transfer belt surface reflection ratio abnormality)
The transfer belt surface is scanned by the image density sensor before starting the process control, and adjust the sensor gain so that the output is kept at a certain level copyir.com However, the output is not within the specified range though the senor gain is adjusted copyir.com Image density sensor trouble, harness connection trouble between PCU PWB and the image density sensor, image density sensor dirt, transfer belt cleaning trouble, calibration plate solenoid operation trouble
F2-45 Color exclusive image density sensor trouble (Calibration plate surface reflection ratio abnormality)
The calibration plate surface is scanned by the image density sensor before starting the process control, and adjust the sensor gain so that the output is kept at a certain level copyir.com However, the output is not within the certain level though the senor gain is adjusted copyir.com Image density sensor trouble, harness connection trouble between PCU PWB and the image density sensor, image density sensor dirt, calibration plate dirt, calibration plate solenoid operation trouble
F2-49 LSU thermistor trouble
The detection temperature is out of the range of 5°C to 55°C copyir.com LSU thermistor harness connection trouble LSU thermistor trouble, PCU PWB trouble
F2-50 K phase sensor sensing trouble
Detection is made by interruption of light in the sensor section of the projection rib on the drum drive gear to control the BK drum phase copyir.com The detection signal cannot be acquired and phase control cannot be made copyir.com Sensor connector connection trouble Dirt on the sensor light emitting section, or installation trouble Drum drive gear upper rib breakage, sensor trouble
F2-51 CL phase sensor sensing trouble
Detection is made by interruption of light in the sensor section of the projection rib on the drum drive gear to control the phases of all the color drums copyir.com The detection signal cannot be acquired and phase control cannot be made copyir.com Sensor connector connection trouble Dirt on the sensor light emitting section, or installation trouble Drum drive gear upper rib breakage, sensor trouble
F2-58 Process humidity sensor trouble
Process humidity sensor open Process humidity sensor harness connection trouble Process humidity sensor trouble PCU PWB trouble
F2-64 Toner supply abnormality (BLACK)
Toner end with the remaining quantity of 50% or more copyir.com The toner supply time exceeds 3 times as much as the specified time copyir.com Toner motor section connector harness trouble Toner motor and toner density sensor trouble
F2-65 Toner supply abnormality (CYAN)
Toner end with the remaining quantity of 50% or more copyir.com The toner supply time exceeds 3 times as much as the specified time copyir.com Toner motor section connector harness trouble Toner motor and toner density sensor trouble
F2-66 Toner supply abnormality (MAGENTA)
Toner end with the remaining quantity of 50% or more copyir.com The toner supply time exceeds 3 times as much as the specified time copyir.com Toner motor section connector harness trouble Toner motor and toner density sensor trouble
F2-67 Toner supply abnormality (YELLOW)
Toner end with the remaining quantity of 50% or more copyir.com The toner supply time exceeds 3 times as much as the specified time copyir.com Toner motor section connector harness trouble Toner motor and toner density sensor trouble
F2-70 Toner cartridge improper cartridge detection (BLACK)
Improper data are detected in the CRUM contents when the normal CRUM of the cartridge is detected copyir.com An improper cartridge is inserted copyir.com Toner cartridge trouble
F2-71 Toner cartridge improper cartridge detection (CYAN)
Improper data are detected in the CRUM contents
when the normal CRUM of the cartridge is detected copyir.com An improper cartridge is inserted copyir.com Toner cartridge trouble
F2-72 Toner cartridge improper cartridge detection (MAGENTA)
Improper data are detected in the CRUM contents when the normal CRUM of the cartridge is detected copyir.com An improper cartridge is inserted copyir.com Toner cartridge trouble
F2-73 Toner cartridge improper cartridge detection (YELLOW)
Improper data are detected in the CRUM contents when the normal CRUM of the cartridge is detected copyir.com An improper cartridge is inserted copyir.com Toner cartridge trouble
F2-74 Toner cartridge CRUM error (BLACK)
CRUM cannot be read or written copyir.com Connection trouble or disconnection of the connector and the harness between the PCU and the toner cartridge copyir.com CRUM trouble
F2-75 Toner cartridge CRUM error (CYAN)
CRUM cannot be read or written copyir.com Connection trouble or disconnection of the connector and the harness between the PCU and the toner cartridge copyir.com CRUM trouble Control PWB (PCU) trouble
F2-76 Toner cartridge CRUM error (MAGENTA)
CRUM cannot be read or written copyir.com Connection trouble or disconnection of the connector and the harness between the PCU and the toner cartridge copyir.com CRUM trouble Control PWB (PCU) trouble
F2-77 Toner cartridge CRUM error (YELLOW)
CRUM cannot be read or written copyir.com Connection trouble or disconnection of the connector and the harness between the PCU and the toner cartridge CRUM trouble Control PWB (PCU) trouble
F2-78 Registration exclusive image density sensor trouble (Transfer belt surface reflection ratio abnormality)
The transfer belt surface is scanned by the image density sensor before starting the registration, and adjust the sensor gain so that the output is kept at a certain level copyir.com However, the output is not within the specified range though the senor gain is adjusted copyir.com Image density sensor trouble, harness connection trouble between PCU PWB and the image density sensor, image density sensor dirt, transfer belt cleaning trouble, calibration plate solenoid operation trouble
F2-80 Half tone process control 1st patch reference value trouble (BLACK)
The low-density rising point or the high-density saturation point cannot be calculated because of a calculation error in the primary approximation formula of the sensor output ratio for the LSU PWM value obtained from the first step patch print result when executing the half tone process control in BLACK copyir.com Image density sensor trouble, harness connection trouble between PCU sub PWB and the image density sensor, image density sensor dirt, transfer belt cleaning trouble
F2-81 Half tone process control 1st patch reference value trouble (CYAN)
The low-density rising point or the high-density saturation point cannot be calculated because of a calculation error in the primary approximation formula of the sensor output ratio for the LSU PWM value obtained from the first step patch print result when executing the half tone process control in CYAN copyir.com Image density sensor trouble, harness connection trouble between PCU sub PWB and the image density sensor, image density sensor dirt, transfer belt cleaning trouble
F2-82 Half tone process control 1st patch reference value trouble (MAGENTA)
The low-density rising point or the high-density saturation point cannot be calculated because of a calculation error in the primary approximation formula of the sensor output ratio for the LSU PWM value obtained from the first step patch print result when executing the half tone process control in MAGENTA copyir.com Image density sensor trouble, harness connection trouble between PCU sub PWB and the image density sensor, image density sensor dirt, transfer belt cleaning trouble
F2-83 Half tone process control 1st patch reference value trouble (YELLOW)
The low-density rising point or the high-density saturation point cannot be calculated because of a calculation error in the primary approximation formula of the sensor output ratio for the LSU PWM value obtained from the first step patch print result when executing the half tone process control in YELLOW copyir.com Image density sensor trouble, harness connection trouble between PCU sub PWB and the image density sensor, image density sensor dirt, transfer belt cleaning trouble
F2-84 Half tone process control 2nd patch reference value trouble (BLACK)
The low-density section output is greater than the middle-density section output when connecting the low-density section approximation formula and the middle-density section approximation formula (formula of the sensor output ratio for the LSU PWM value) from the second step patch print result when executing the half tone process control in BLACK copyir.com Image density sensor trouble, harness connection trouble between PCU sub PWB and the image density sensor, image density sensor dirt, transfer belt cleaning trouble, transfer belt cleaning trouble
F2-85 Half tone process control 2nd patch reference value trouble (CYAN)
The low-density section output is greater than the middle-density section output when connecting the low-density section approximation formula and the middle-density section approximation formula (formula of the sensor output ratio for the LSU PWM value) from the second step patch print result when executing the half tone process control in CYAN copyir.com Image density sensor trouble, harness connection trouble between PCU sub PWB and the image density sensor, image density sensor dirt, transfer belt cleaning trouble
F2-86 Half tone process control 2nd patch reference value trouble (MAGENTA)
The low-density section output is greater than the middle-density section output when connecting the low-density section approximation formula and the middle-density section approximation formula (formula of the sensor output ratio for the LSU PWM value) from the second step patch print result when executing the half tone process control in MAGENTA copyir.com Image density sensor trouble, harness connection trouble between PCU sub PWB and the image density sensor, image density sensor dirt, transfer belt cleaning trouble
F2-87 Half tone process control 2nd patch reference value trouble (YELLOW)
The low-density section output is greater than the middle-density section output when connecting the low-density section approximation formula and the middle-density section approximation formula (formula of the sensor output ratio for the LSU PWM value) from the second step patch print result when executing the half tone process control in YELLOW copyir.com Image density sensor trouble, harness connection trouble between PCU sub PWB and the image density sensor, image density sensor dirt, transfer belt cleaning trouble
F2-92 High-density process control density correction error (CYAN)
The patch density value is not in the range of the density correction reference density value (STD value) ±30% at the upper limit or the lower limit bias voltage when executing the high density process control copyir.com Image density sensor trouble, harness connection trouble between PCU PWB-image density sensor, dirt on image density sensor, transfer belt cleaning trouble
F2-93 High-density process control density correction error (MAGENTA)
The patch density value is not in the range of the density correction reference density value (STD value) ±30% at the upper limit or the lower limit bias voltage when executing the high density process control copyir.com Image density sensor trouble, harness connection trouble between PCU PWB-image density sensor, dirt on image density sensor, transfer belt cleaning trouble
F2-94 High-density process control density correction error (YELLOW)
The patch density value is not in the range of the density correction reference density value (STD value) ±30% at the upper limit or the lower limit bias voltage when executing the high density process control copyir.com Image density sensor trouble, harness connection trouble between PCU PWB-image density sensor, dirt on image density sensor, transfer belt cleaning trouble
F3-12 Main unit tray 1 lift-up trouble
LUD1 does not turn ON within the specified time copyir.com LUD1 sensor trouble, harness connection trouble between PCU PWB, the lift-up unit, and the paper feed unit copyir.com Tray 1 lift-up motor trouble
F3-22 Main unit tray 2 lift-up trouble
LUD2 does not turn ON within the specified time copyir.com LUD2 sensor trouble, harness connection trouble between PCU PWB, the lift-up unit, and the paper feed unit copyir.com Tray 2 lift-up motor trouble
F9-00 Communication trouble between the controller and the printer controller (EF1)
A communication error is detected during initial establishment or after establishment of communication with the EFI controller copyir.com Printer controller MFPcnt PWB cable trouble MFPcnt PWB cable trouble, printer controller PWB trouble
H2-00 Non-contact thermistor detection thermistor open (TH_UM_AD2)
Thermistor open Thermistor trouble, control PWB trouble, fusing section connector connection trouble, AC power source trouble, fusing unit not-installed
H2-01 Lower thermistor open (TH_LM)
Thermistor open Thermistor trouble, control PWB trouble, fusing section connector connection trouble, AC power source trouble, fusing unit not-installed
H2-02 Sub thermistor open (TH_US)
Thermistor open Thermistor trouble, control PWB trouble, fusing section connector connection trouble, AC power source trouble, fusing unit not-installed
H2-03 Non-contact thermistor compensation thermistor open (TH_UM_AD1)
Thermistor open Thermistor trouble, control PWB trouble, fusing section connector connection trouble, AC power source trouble
H2-04 Hang-up preventing thermistor open (TH-US)
Thermistor open Thermistor trouble, control PWB trouble, fusing section connector connection trouble, AC power source trouble
H3-00 Fusing section high temperature trouble (TH_UM)
The fusing temperature inside the PWB exceeds the specified level copyir.com Thermistor trouble, control PWB trouble, fusing section connector connection error, AC power source trouble
H3-01 Fusing section high temperature trouble (TH_LM)
The fusing temperature inside the PWB exceeds the
specified level copyir.com Thermistor trouble, control PWB trouble, fusing section connector connection error, AC power source trouble
H3-02 Sub thermistor fusing section high temperature trouble (TH_US)
The fusing temperature inside the PWB exceeds the specified level copyir.com Thermistor trouble, control PWB trouble, fusing section connector connection error, AC power source trouble
H3-04 Fusing section high temperature trouble (TH_US)
The temperature of the hung-up prevention thermistor exceeds the specified level copyir.com Non-contact thermistor trouble, control PWB trouble, fusing section connector connection error, AC power source trouble
H4-00 Fusing section low temperature trouble (TH_UM_AD2)
The temperature does not reach the specified level within the specified time after turning on the power relay copyir.com Thermistor trouble, heater lamp trouble, PCU PWB trouble, thermostat trouble, AC power source trouble, interlock switch trouble
H4-01 Fusing section low temperature trouble (TH_LM)
The temperature does not reach the specified level within the specified time after turning on the power relay copyir.com Thermistor trouble, heater lamp trouble, PCU PWB trouble, thermostat trouble, AC power source trouble, interlock switch trouble
H4-02 Sub thermistor fusing section low temperature trouble (TH_US)
The temperature does not reach the specified level within the specified time after turning on the power relay copyir.com Thermistor trouble, heater lamp trouble, PCU PWB trouble, thermostat trouble, AC power source trouble, interlock switch trouble
H4-30 Thermistor differential input trouble (TH_UM)
TH_UM_AD1 and TH_UM_AD2 do not exceed the specified level (50 count with the AD value) within 1minute after HL_UM is turned on copyir.com HL_UM does not turn on copyir.com Thermistor trouble, harness trouble, PCU PWB trouble
H5-01 5 continuous detection of POD1 notreached jam
5 continuous detection of POD1 not-reached jam The fusing jam is not removed completely copyir.com (Jam paper remains copyir.com ) POD1 sensor trouble or harness connection trouble Fusing unit installation trouble
L1-00 Mirror feed trouble
Mirror feed is not completed within the specified time copyir.com Mirror unit trouble, mirror wire disengagement
L3-00 Mirror return trouble
Mirror return is not completed within the specified time copyir.com Mirror unit trouble, mirror wire disengagement
L4-02 Paper feed motor lock trouble
When the paper feed motor is rotated in warming up or in canceling a jam and the lock signal is not detected within 1sec copyir.com Paper feed motor trouble, harness connection trouble between PCU PWB and paper feed motor, control circuit trouble
L4-04 Developing motor trouble (BLACK)
The motor lock signal is detected during rotation of the developing motor copyir.com Harness connection trouble between the PCU PWB and the developing motor copyir.com Developing motor trouble, control circuit trouble
L4-05 Developing motor trouble (COLOR)
The motor lock signal is detected during rotation of the developing motor copyir.com Harness connection trouble between the PCU PWB and the developing motor Developing motor trouble, control circuit trouble
L4-06 Transfer belt separation position sensor trouble
When separating the primary transfer belt unit, change in the separation position sensor characteristics is not detected within the specified time copyir.com Harness connection trouble between the PCU PWB and the separation position sensor The belt position sensor is not interrupted or it is always interrupted copyir.com Belt separation clutch operation trouble The primary transfer belt unit is not installed
L4-11 Shift motor trouble
When the shift motor is initialized, no characteristics change of the shifter home position sensor is not detected within the specified time copyir.com Shift motor trouble Harness connection trouble between the PCU PWB and the shift motor, control circuit trouble When the finisher is installed with the finisher connector disconnected and when the finisher communication trouble occurs copyir.com
L4-30 Controller fan/HDD fan motor trouble
1) The motor lock signal is detected during rotation of the controller fan motor copyir.com 2) The motor lock signal is detected during rotation of the HDD fan motor copyir.com Fan motor trouble Harness connection trouble between the mother PWB and the fan motor copyir.com Control circuit trouble Mother PWB trouble copyir.com
L4-31 Paper exit cooling fan trouble
When the paper exit cooling fan is operated, the fan operation signal is not detected within the specified time copyir.com Fan connector disconnection Fan does not rotate because of other trouble copyir.com
L4-32 Power cooling fan/ozone exhaust fan trouble
When the power cooling fan/ozone exhaust fan is operated, the fan operation signal is not detected within the specified time copyir.com Power cooling fan or ozone exhaust fan connector disconnection Fan does not rotate because of other trouble
L4-34 LSU cooling fan trouble
When the LSU cooling fan is operated, the fan operation signal is not detected within the specified time Fan connector disconnection Fan does not rotate because of other trouble copyir.com
L6-10 Polygon motor lock detection
It is judged that the LSU polygon motor lock signal is not outputted, and the lock signal is checked after 7 sec from starting rotation of the polygon motor and it is judged that the polygon motor does not rotate properly copyir.com Disconnection of the LSU connector or the LSU inside harness, or breakage Polygon motor trouble, LSU PWB trouble
L8-01 No full wave signal
No full wave signal is detected copyir.com Harness trouble Power unit trouble PCU PWB trouble
L8-02 Full wave signal width abnormality
The full wave signal is judged as frequency abnormality copyir.com (The detection frequency is judged as 65Hz or above or 45Hz or less copyir.com ) Harness trouble Power unit trouble PCU PWB trouble
L8-20 Power controller communication trouble
Communication establishment error/Framing/ Parity/Protocol error Connector connection trouble between the mother board PWB and the MFPcnt PWB copyir.com MFPcnt PWB mother board connector pin breakage Mother PWB trouble
PC— Personal counter not installed
The personal counter is not installed copyir.com The personal counter is not installed copyir.com
U1-01 Battery trouble
Backup SRAM battery voltage fall 1) Battery life 2) Battery circuit abnormality
U2-00 EEPROM read/write error (MFP detection)
EEPROM device read/write error EEPROM device trouble EEPROM device contact failure Device access error due to electrical noises
U2-05 HDD/Flash/EEPROM data discrepancy
A HDD or Flash memory for user authentication different from that used before turn off the power is installed copyir.com HDD replacement or Flash memory replacement
U2-10 SRAM user authentication index check sum error
User index information (basic data of user authentication) check sum error on the SRAM 1) SRAM trouble 2) Hang-up of the control circuit due to electrical noises 3) MFPcnt PWB SRAM access circuit trouble
U2-11 EEPROM check sum error (MFP detection)
Counter information check sum error on the EEPROM 1) EEPROM device trouble 2) EEPROM device contact failure 3) Device access error due to electrical noises
U2-22 SRAM memory check sum error
MFPcnt PWB SRAM memory check sum error 1) Initialize the communication management table registered in SRAM and the FAX soft switch copyir.com 2) Since the registered contents have been deleted, register them again copyir.com Control circuit hang-up due to electrical noises MFPcnt PWB SRAM access circuit trouble
U2-23 MFPC section SRAM memory individual data check sum error
MFPcnt PWB SRAM memory individual data check sum error (Communication management table, sender registration data, etc copyir.com ) SRAM trouble Control circuit hang-up due to electrical noises MFPcnt PWB SRAM access circuit trouble
U2-24 SRAM memory user authentication counter check sum error
Check sum error of the user counter on SRAM 1) SRAM trouble 2) Control circuit hang-up due to electrical noises 3) MFPcnt PWB SRAM access circuit trouble
U2-25 Flash memory user authentication counter check sum error
Check sum error of the user authentication counter on FLASH Flash trouble copyir.com Control circuit hang-up due to electrical noises MFPcnt PWB FLASH access circuit trouble copyir.com
U2-30 Serial number data discrepancy (MFP – PCU)
The serial number stored in the PCU differs from that stored in the MFP copyir.com EEPROM is not changed when the PCU/MFPcnt PWB is replaced copyir.com
U2-50 HDD section individual data check sum error
MFPcnt HDD individual data check sum error (One-touch, group, program, etc copyir.com ) Write/read error to/from HDD Control circuit hang-up due to electrical noises MFPcnt PWB HDD access circuit trouble
U2-80 EEPROM read/write error (SCU detection)
1) EEPROM version error 2) Write error to EEPROM EEPROM trouble, installation of EEPROM which is not initialized SCU PWB EEPROM access circuit trouble
U2-81 Adjustment value check sum error (SCU detection)
EEPROM (SCU) check sum error Control circuit hang-up due to electrical noises EEPROM trouble SCU PWB EEPROM access circuit trouble
U2-90 EEPROM read/write error (PCU detection)
EEPROM version error, write error to EEPROM EEPROM trouble, installation of EEPROM which is not initialized PCU PWB EEPROM access circuit trouble
U2-91 EEPROM (PCU) check sum error
Check sum error of adjustment value (PCU) Control circuit hang-up due to electrical noises EEPROM trouble copyir.com PCU PWB EEPROM access circuit trouble
U5-00 SPF communication trouble
Communication error between the SCU and the DSPF, communication line test error after turning on the power or canceling the exclusive simulation (MX-3501N/3501FN/4501N/4501FN) Malfunction due to electrical noises Connector and harness connection trouble or disconnection Control (SCU) PWB trouble copyir.com DSPF PWB trouble
U5-16 SPF fan motor trouble
The motor lock signal is detected during rotation of the fan copyir.com Fan motor trouble,harness of the fan motor related, circuit trouble
U5-30 SPF lift-up trouble
Lift-up trouble is detected 5 times continuously copyir.com (MX-3501N/4501N) STUD/STLD trouble
U5-31 SPF tray lift-down trouble
Lift-down trouble (STLD does not turn OFF within the specified time copyir.com ) (MX-3501N/4501N) STUD/STLD trouble
U5-40 SPF install trouble
Detected the installed (individual installed signal ) of RSPF/DSPF both copyir.com Circuit trouble of the installed detection signal
U6-00 Desk communication trouble
Desk communication error, communication line test error after turning on the power or canceling the exclusive simulation Connector and harness connection trouble or disconnection, desk control PWB trouble, control PWB (PCU) trouble, malfunction due to electrical noises
U6-01 Tray 1 lift-up trouble
DLUD1 does not turn ON within the specified time copyir.com DLUD1 sensor trouble, tray 1 lift-up motor trouble, desk PWB, lift-up unit, paper feed unit harness connection trouble
U6-02 Tray 2 lift-up trouble
DLUD2 does not turn ON within the specified time DLUD2 sensor trouble, tray 2 lift-up motor trouble, desk PWB, lift-up unit, paper feed unit harness connection trouble
U6-09 LCC lift motor trouble
• The encoder input value is not changed in 0 copyir.com 13sec (1st time)/0 copyir.com 5sec (2nd time and later) after rotation of the motor copyir.com • The motor is rotated for 18sec or more copyir.com • The encoder is changed after passing a certain time from stopping the motor copyir.com (2sec, 10 count or more) Sensor trouble, LCC control PWB trouble, gear breakage, lift motor trouble
U6-10 Desk transport motor trouble
Desk transport motor operation trouble Motor lock, motor RPM abnormality, overcurent to the motor, console finisher control PWB trouble
U6-20 LCC communication trouble
LCC communication error copyir.com Communication line test error after turning ON the power or canceling the exclusive simulation copyir.com LCC and machine model codes discrepancy error Connector and harness connection trouble or disconnection, LCC control PWB trouble, control PWB (PCU) trouble, malfunction due to electrical noises
U6-21 LCC transport motor trouble
• The encoder input value is not changed in 0 copyir.com 06sec after turning on the motor copyir.com • The encoder input value is changed after a certain time from turning OFF the motor copyir.com (After 5sec, count is made for 0 copyir.com 1sec to get 100 or more count copyir.com ) Motor lock, motor RPM abnormality, an overcurrent to the motor, LCC control PWB trouble
U6-22 LCC 24V power abnormality
DC24V power is not supplied to LCC copyir.com Connector and harness connection trouble or disconnection, LCC control PWB trouble, power unit trouble
U6-50 Desk incompatibility trouble
Detection of desk connection incompatible with the MX-3500/4500/3501/4501 ** Connection of a desk which is incompatible with the MX-3500/4500/3501/4501** is detected copyir.com
U6-51 LCC incompatibility trouble
Detection of LCC connection which is incompatible with the MX-3500/4500/3501/4501 ** copyir.com Connection of the LCC, which is incompatible with the MX-3500/ 4500/ 3501/ 4501 ** is detected copyir.com
UC-02 CPT-ASIC abnormality
CPT-ASIC access error (When the ASIC does not operate normally copyir.com ) CPT-ASIC abnormality, SCU PWB abnormality
UC-20 Document control module trouble
Communication error between SCU and DOCC Communication line test error when turning on the power or after canceling an exclusion simulation copyir.com Connector or harness connection error or disconnection Control PWB (SCU) trouble, DOCC PWB trouble copyir.com Malfunction due to electrical noises copyir.com
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