AR-C270 (serv.man14). (Section 10) Self Diag Message Troubleshooting - Sharp Copying Equipment Service Manual (repair manual). Page 8

Main 

code

Sub

code

Title

Phenomena Display

Lamp
Message

Detail

The motor lock signal is detected for 50ms or more during rotation of the fusing motor. 

Section

Paper feed

Operation mode

Paper feed

Note

Case 1

Trouble
position/cause

Fusing motor trouble

Remedy

(Check) Check the fusing motor operation. (SIM 6-1)
(Repair) Replace the fusing motor. / Power Source-ON
(After-work)

Note

Case 2

Trouble
position/cause

PCU MAIN PWB trouble  

Remedy

(Check)
(Repair) Replace the PCU MAIN PWB. / Power Source-ON
(After-work) Re-enter setup values and adjustment values. (Install the EEPROM of the defective PCU
MAIN PWB to a new PCU MAIN PWB.)

Note

Case 3

Trouble
position/cause

Fusing mechanism section trouble. 

Remedy

(Check) Check the loads in the fusing mechanism section. 
(Repair) Repair or replace parts in the fusing mechanism section. / Power Source-ON
(After-work)

Note

Main 

code

Sub

code

Title

Phenomena Display

Lamp
Message

Detail

The motor lock signal is detected for 3.5sec or more when the developing motor is ON. 

Section

Developing drive

Operation mode

Warm-up / Copy / Print

Note

Case 1

Trouble
position/cause

Developing motor trouble

Remedy

(Check) Check the developing motor operation (SIM 25-1). 
(Repair) Replace the developing motor. / Power Source-ON
(After-work)

Note

Case 2

Trouble
position/cause

Developing mechanism section trouble

Remedy

(Check) Check the loads of the developing mechanism section.
(Repair) Repair or replace the parts in the developing mechanism section. / Power Source-ON
(After-work)

Note

Case 3

Trouble
position/cause

PCU MAIN PWB trouble  

Remedy

(Check)
(Repair) Replace the PCU MAIN PWB. / Power Source-ON
(After-work) Re-enter setup values and adjustment values. (Install the EEPROM of the defective PCU
MAIN PWB to a new PCU MAIN PWB.)

Note

10 –  8A