MX-6201N, MX-7001N (serv.man20). SELF DIAGNOSIS TROUBLE CODES SECTION - Sharp Copying Equipment Service Manual (repair manual). Page 26

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MX-7001N  SELF DIAG AND TROUBLE CODE  8 – 26
 
H5-01
5 continuous detection of POD1 not-
reached jam
 
H7-10
Low temperature detection during the
temperature control reset operation
after stopping the alarm in a JOB
(HL_UM)
 
H7-11
Low temperature detection during the
temperature control reset operation
after stopping the alarm in a JOB
(HL_LM)
 
H7-12
Low temperature detection during the
temperature control reset operation
after stopping the alarm in a JOB
(HL_US)
 
H7-14
Low temperature detection during the
temperature control reset operation
after stopping the alarm in a JOB
(HL_EX1)
 
L1-00
Mirror feed trouble
 
L3-00
Mirror return trouble
Trouble content
5 continuous detection of POD1 not-reached jam
Section
PCU
Case 1
Cause
The fusing jam is not removed completely. (Jam 
paper remains.)
Check and 
remedy
Check the fusing section for jam paper. (winding, 
etc.)
Case 2
Cause
POD1 sensor trouble or harness connection 
trouble
Check and 
remedy
Check the POD1 sensor harness.
Use SIM14 to cancel the trouble.
Case 3
Cause
Fusing unit installation trouble
Check and 
remedy
Check the fusing unit installation.
Trouble content
When the alarm is stopped, the set temperature is 
not reached within the specified time.
* Alarm stop: When the fusing temperature falls 
below the specified level in a print JOB, printing 
is interrupted temporarily and the temperature is 
reset.
Section
PCU
Case 1
Cause
Connector and harness connection trouble
Check and 
remedy
Check connection of the connector and the 
harness.
Case 2
Cause
Thermistor trouble, thermostat trouble, heater lamp 
trouble, PCU PWB trouble, AC power source 
trouble, interlock switch trouble
Check and 
remedy
Use SIM 5-2 to check lighting of the heater lamp. 
Check conduction of the thermostat. Replace the 
heater lamp, the PCU PWB, and the AC PWB.
Trouble content
When the alarm is stopped, the set temperature is 
not reached within the specified time.
* Alarm stop: When the fusing temperature falls 
below the specified level in a print JOB, printing 
is interrupted temporarily and the temperature is 
reset.
Section
PCU
Case 1
Cause
Connector and harness connection trouble
Check and 
remedy
Check connection of the connector and the 
harness.
Case 2
Cause
Thermistor trouble, thermostat trouble, heater lamp 
trouble, PCU PWB trouble, AC power source 
trouble, interlock switch trouble
Check and 
remedy
Use SIM 5-2 to check lighting of the heater lamp. 
Check conduction of the thermostat. Replace the 
heater lamp, the PCU PWB, and the AC PWB.
Trouble content
When the alarm is stopped, the set temperature is 
not reached within the specified time.
* Alarm stop: When the fusing temperature falls 
below the specified level in a print JOB, printing 
is interrupted temporarily and the temperature is 
reset.
Section
PCU
Case 1
Cause
Connector and harness connection trouble
Check and 
remedy
Check connection of the connector and the 
harness.
Case 2
Cause
Thermistor trouble, thermostat trouble, heater lamp 
trouble, PCU PWB trouble, AC power source 
trouble, interlock switch trouble
Check and 
remedy
Use SIM 5-2 to check lighting of the heater lamp. 
Check conduction of the thermostat. Replace the 
heater lamp, the PCU PWB, and the AC PWB.
Trouble content
When the alarm is stopped, the set temperature is 
not reached within the specified time.
* Alarm stop: When the fusing temperature falls 
below the specified level in a print JOB, printing 
is interrupted temporarily and the temperature is 
reset.
Section
PCU
Case 1
Cause
Connector and harness connection trouble
Check and 
remedy
Check connection of the connector and the 
harness.
Case 2
Cause
Thermistor trouble, thermostat trouble, heater lamp 
trouble, PCU PWB trouble, AC power source 
trouble, interlock switch trouble
Check and 
remedy
Use SIM 5-2 to check lighting of the heater lamp. 
Check conduction of the thermostat. Replace the 
heater lamp, the PCU PWB, and the AC PWB.
Trouble content
Mirror feed is not completed within the specified 
time.
Section
SCU
Case 1
Cause
Mirror unit trouble, mirror wire disengagement
Check and 
remedy
Use SIM1-1 to check the mirror operation.
Trouble content
Mirror return is not completed within the specified 
time.
Section
SCU
Case 1
Cause
Mirror unit trouble, mirror wire disengagement
Check and 
remedy
Use SIM1-1 to check the mirror operation.
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