The Specified Mail Server (Pop3) Suspends Response; Cis Shading Trouble (White Correction); Cis Communication Trouble; System Data Trouble - Sharp MX-M550U Service Manual

CE-07 The entered account name of the
POP3 server or the password for
authentication is invalid.
Details POP3 server authentication check error
Section
Case 1 Cause Improper connection of the network cable
Check and Check connection of the network cable.
remedy
Case 2 Cause Improper account name or password registered in
the POP3 server
Check and Check that the account name or the password
remedy registered for the POP3 server is correct.
CE-08 The specified mail server (POP3)
suspends response.
Details POP3 server time-out error
Section
Case 1 Cause Improper connection of the network cable
Check and Check connection of the network cable.
remedy
Case 2 Cause An error occurs in the POP3 server.
Check and Check for any error in the POP3 server.
remedy
E6-11

CIS shading trouble (White correction)

Details When the power is turned on or when the proper
gain setup value is not obtained with SIM 63-2 CIS
shading (Retry number: 256 times):
CIS white reference plate scan level is abnormal
when the lamp is lighted.
Section Scanner
Case 1 Cause Defective installation of the harness to the CIS unit
CIS unit abnormality
Check and CIS unit harness check
remedy
Case 2 Cause Reference white plate dirt
Check and Clean the reference white plate.
remedy
Case 3 Cause CIS lighting trouble
Check and Use SIM 5-3 to check the light quantity of CIS.
remedy
Case 4 Cause Scanner PWB abnormality
Check and Scanner PWB check
remedy
E6-14

CIS communication trouble

Details When an error occurs in an access check to the
CIS-ASIC on turning on the power or closing the
DSFP cover. (Retry number: 5 times)
Communication trouble between the scanner
PWB and the CIS-ASIC. (Clock synchronization)
Section Scanner
Case 1 Cause Defective installation of the harness to the CIS
unit
Check and Check the harness connected to the CIS unit.
remedy
Case 2 Cause CIS unit abnormality
Check and CIS unit check
remedy
Case 3 Cause Scanner PWB abnormality
Check and Scanner PWB check
remedy
MX-M700N SELF DIAG AND TROUBLE CODE 8 – 7
E7-01

System data trouble

Details While reading/writing the HDD system area data,
the HDD returns an error response or no response
at all for longer than 30 seconds.
Section Controller
Case 1 Cause No HDD is installed on the MFP control PWB.
Check and Check installation status of the HDD on the MFP
remedy control PWB.
Case 2 Cause HDD does not properly function.
Check and • CHECK connection between the HDD and MFP
remedy control.
• Perform an HDD read/write test using
SIM 62-2/3.
• Replace HDD.
Case 3 Cause MFP control PWB abnormality
Check and Replace the MFP control PWB.
remedy
E7-02 Laser trouble
Details The BD signal from the LSU is kept OFF or ON.
When the polygon motor rotation is started and
three successive BDT signals of I/O ASIC are
detected after forced lighting of laser.
Section Engine
Case 1 Cause The connector to the LSU or the harness in the
LSU is disconnected or broken.
Check and Check for disconnection of the connector to the
remedy LSU.
Case 2 Cause The polygon motor does not rotate properly.
Check and Check that the polygon motor rotated properly or
remedy not.
Case 3 Cause The position of the laser home position sensor in
the LSU is shifted.
Check and Use SIM 61-1 to check the LSU operation.
remedy
Case 4 Cause A proper voltage is not supplied to the power line
of the laser.
Check and Replace the LSU unit.
remedy
Case 5 Cause Defective lighting of the laser emitting diode
Check and Check lighting of the laser emitting diode.
remedy
Case 6 Cause PCU PWB abnormality
Check and Replace the MFP control PWB.
remedy
Case 7 Cause MFP control ASIC PWB abnormality
Check and Replace the MFP control PWB.
remedy
E7-03

HDD trouble

Details Data abnormality in the HDD file management
area (cluster chain corrupted)
The HDD sends an error response or does not
respond for 30 sec.
Section Controller
Case 1 Cause The HDD is not installed properly to the MFP
control PWB.
Check and Check installation of the HDD to the MFP control
remedy PWB.
Case 2 Cause The HDD of the MFP control PWB does not
operate properly.
Check and Check connection of the harness to the HDD of
remedy the MFP control PWB. Use SIM 62-2, -3 to check
read/write of the HDD.
Replace the HDD.
Case 3 Cause MFP control ASIC PWB abnormality
Check and Replace the MFP control PWB.
remedy