MX-5500N, MX-6200N, MX-7000N (serv.man47). Self diagnostics Trouble Codes - Sharp Copying Equipment Service Manual (repair manual). Page 8

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MX-7000N  SELF DIAG AND TROUBLE CODE  8 – 8
3. Details of trouble code
 
A0-01
PCU ROM abnormality
 
A0-02
SCU ROM abnormality
 
A0-10
Controller ROM error
 
A0-11
IF version discrepancy (CTL-PCU)
 
A0-12
IF version discrepancy (CTL-SCU)
 
A0-20
Machine level error (CTL detection)
 
A0-21
Machine level error (PCU detection)
 
A0-22
Machine level error (SCU detection)
 
C1-01
Charger cleaner trouble
 
C1-02
Charger cleaner motor lock
U6
23
LCC tray descending trouble (reverse winding detection)
PCU
●
24
LCC tray lock detection trouble
PCU
●
51
LCC incompatibility trouble
PCU
●
UC
02
CPT-ASIC trouble
SCU
●
20
Document control module trouble
SCU
●
21
DOCC (Document Control) PWB not-detected (DSK model 
only)
SCU
●
Trouble code
Trouble code content
Remarks
Trouble 
detection
Mechanism
Option
Electricity
FAX
Supply
Main 
code
Sub 
code
Trouble content
PCU ROM content trouble
Section
MFP
Case 1
Cause
Firmware upgrade is not made properly due to 
power OFF, etc. 
Check and 
remedy
Use SIM49-1 to upgrade the firmware.
Trouble content
SCU ROM content trouble
Section
MFP
Case 1
Cause
Some part of SFU is not upgraded during 
upgrading of the firmware.
Check and 
remedy
Use SIM49-1 to execute the firmware.
Trouble content
SFU combination error in the controller
Section
MFP
Case 1
Cause
SFU upgrade was not properly made when 
upgrading the firmware.
Check and 
remedy
Controller firmware upgrade
Trouble content
Combination error between CTL and PCU
Section
MFP
Case 1
Cause
Combination error between CTL and PCU
Check and 
remedy
Check the firmware combination between CTL and 
PCU.
Trouble content
Combination error between CTL and SCU
Section
MFP
Case 1
Cause
Combination error between CTL and SCU
Check and 
remedy
Check the firmware combination between CTL and 
SCU.
Trouble content
Combination error between the machine 
production/remodeling and the firmware
Section
MFP
Case 1
Cause
Combination error between the machine 
production/remodeling and the firmware
Check and 
remedy
Check the combination between the machine 
production/remodeling and the firmware.
Trouble content
Combination error between the machine 
production/remodeling and the firmware
Section
PCU
Case 1
Cause
Combination error between the machine 
production/remodeling and the firmware
Check and 
remedy
Check the combination between the machine 
production/remodeling and the firmware.
Trouble content
Combination error between the machine 
production/remodeling and the firmware
Section
SCU
Case 1
Cause
Combination error between the machine 
production/remodeling and the firmware
Check and 
remedy
Check the combination between the machine 
production/remodeling and the firmware.
Trouble content
The charger cleaner does not complete shift 
operation during the specified time.
Section
PCU
Case 1
Cause
Charger unit trouble
Check and 
remedy
Check the charger unit
Case 2
Cause
RE sensor, HP sensor, charger cleaner motor, and 
PCU PWB troubles, harness connection trouble
Check and 
remedy
1)
Check the sensor, the motor, and the PCU 
PWB.
2)
Check the harness connection between the 
sensor, the motor and the PCU PWB.
Trouble content
When the charger cleaner motor is rotating, an 
excess motor current over the specified level is 
detected.
Section
PCU
Case 1
Cause
Charger cleaner motor trouble
Check and 
remedy
Check the charger cleaner motor
Case 2
Cause
PCU PWB trouble, harness connection trouble
Check and 
remedy
1)
Check the PCU PWB.
2)
Check harness connection between the 
motor and the PCU PWB.
Display
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