MX-M950, MX-MM1100 (serv.man39). Section 8 Self Diagnostics Trouble Codes - Sharp Copying Equipment Service Manual (repair manual). Page 9

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MX-M1100 SELF DIAG AND TROUBLE CODE  8 – 9
3. Details of trouble code
 
C1-00
Charger trouble
 
C1-01
Charger cleaner trouble
 
E6-10
Shading trouble black correction 
(SPF)
 
E6-11
Shading trouble white correction 
(SPF)
 
E6-14
CCD-ASIC abnormality (SPF)
 
E7-00
System memory trouble (The Tandem 
memory is not guaranteed.)
 
E7-01
System data trouble
 
E7-03
HDD trouble
 
E7-04
HDD-ASIC trouble
 
E7-05
W-ICU memory trouble
Detail
Main charger output abnormality (output open) /
The trouble signal is outputted from the high voltage 
transformer
Section
PCU
Cause
The main charger is not installed properly. 
The main charger is not assembled properly. 
The connector of the high voltage transformer is 
disconnected. 
The high voltage harness is disconnected or broken. 
Check & 
Remedy
Use Sim. 8-2 to check the operation of the main 
charger. 
Check for disconnection of the main charger. 
Replace the high voltage unit.
Detail
The charger cleaner shift is not completed within the 
specified time
Section
PCU
Cause
Charger unit trouble.
RE sensor, HP sensor, motor, PCU PWB, harness 
connection trouble.
Check &
Remedy
Check connection of the charger unit, the PCU PWB, 
and the harness.
Detail
The CCD black scan level is abnormal when the copy 
lamp is turned off
Section
SCU
Cause
Installation failure of the harness to the CCD unit
CCD unit abnormality, DSPF PWB abnormality.
Check & 
Remedy
Check installation of the harnesses to the CCD unit. 
Check the CCD unit and the DSPF PWB. 
Detail
The CCD white reference plate scan level is abnormal 
when the copy lamp is turned on
Section
SCU
Cause
Installation failure of the harness to the CCD unit
Dirt on the mirror, the lens, and the reference white plate.
Copy lamp lighting trouble.
CCD unit abnormality, DSPF PWB abnormality.
Shading Sim. not executed / Shading ROM abnormality.
Check & 
Remedy
Check installation of the harnesses to the CCD unit.
Check installation of the harnesses to the copy lamp 
unit. Clean the mirror, the lens, and the reference 
white plate.
Check the CCD unit and the DSPF PWB. 
Detail
The written register value cannot be read out
Section
SCU
Cause
DSPF PWB abnormality
Check & 
Remedy
Check the DSPF PWB.
Detail
The system memory cannot be accessed
Section
ICU
Cause
Expansion memory installation state abnormality.
Data garble.
Check & 
Remedy
Check installation of the system expansion memory.
Check memory read / write with Sim. 60-01.
Replace the expansion memory. (If it is installed.)
Replace the MFPC PWB.
Detail
Data abnormality
Section
ICU
Cause
Image transfer abnormality
Check & 
Remedy
Check connection of the connector of the MFPC PWB 
and the W-ICU PWB.
Replace the W-ICU PWB. 
Replace the MFPC PWB.
Detail
HDD breakdown
HDD connection trouble
File management area data abnormality (when FAT is 
broken.)
Section
ICU
Cause
The ICU PWB is not properly installed to the HDD.
The HDD does not operate normally.
ICU PWB abnormality.
Check & 
Remedy
Check installation of the HDD to the W-ICU PWB. 
Check connection of the harness to the HDD of the W-
ICU PWB.
Check read / write of HDD with Sim. 62-2, 3.
Replace the HDD.
Replace the W-ICU PWB.
Replace the MFPC PWB.
Detail
An error occurs in the HDD-ASIC self test when booting
Section
ICU
Cause
HDD-ASIC abnormality
Check & 
Remedy
Check installation of the HDD-ASIC of the ICU PWB. 
Replace the ICU PWB.
Detail
The W-ICU memory cannot be accessed
Section
ICU
Cause
W-ICU expansion memory installation abnormality.
Data  garble.
Insufficient memory capacity.
Check & 
Remedy
Check instillation the expansion memory. 
Check read / write memory with Sim. 60-01. 
Replace the expansion memory. (If it is installed.)
Replace the W-ICU PWB. 
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