AR-C260 (serv.man14). (11) Troubleshooting - Sharp Copying Equipment Service Manual (repair manual). Page 21

AR-C260/C260M  TROUBLESHOOTING  11 - 21

Case 1

Cause

Transfer belt motor 
connector disconnection, 
process control sensor 
connector disconnection, 
process control BK sensor 
defect, defective 
connection of the harness 
between the PCU PWB 
and the transfer belt motor, 
defective control circuit

Check & 
Remedy

Check the transfer belt 
motor operation with 
SIM25-1. Check the 
process control sensor 
operation with SIM44-2. 
Check the harness and the 
connector between the 
PCU PWB and the transfer 
belt motor.

Main 
code

Sub 

code

Title

Display

Lamp/Message

Phenomenon

Detail

When initializing the shift 
motor, the change in the 
shift motor home position 
sensor characteristics is 
not detected within the 
specified time. 

Section

Paper feed

Case 1

Cause

Shift motor trouble, 
disconnection of the 
harness between the PCU 
PWB and the shift motor, 
control circuit trouble

Check & 
Remedy

Use SIM 6-1 to check the 
shift motor operation. Use 
SIM 30-1 to check the shift 
motor home position 
sensor. Check the harness 
and the connector 
between the PCU PWB 
and the shift motor. 

Main 
code

Sub 

code

Title

Display

Lamp/Message

Phenomenon

Detail

The full wave signal is not 
provided. 

Section

—

Case 1

Cause

PCU PWB trouble

Check & 
Remedy

Replace the PCU PWB.

Case 2

Cause

Power supply unit trouble

Check & 
Remedy

Replace the power supply 
unit. 

Case 3

Cause

Harness trouble

Check & 
Remedy

Check connection of the 
harness and the 
connector. 

Main 
code

Sub 

code

Title

Main 
code

Sub 

code

Title

Display

Lamp/Message

Phenomenon

Detail

An abnormality of the full 
wave signal frequency is 
detected. (The detected 
frequency is 65kHz or 
above, or 45kHz or below.)

Section

—

Case 1

Cause

PCU PWB trouble

Check & 
Remedy

Replace the PCU PWB.

Case 2

Cause

Power supply unit trouble

Check & 
Remedy

Replace the power supply 
unit. 

Case 3

Cause

Harness trouble

Check & 
Remedy

Check connection of the 
harness and the 
connector. 

Main 
code

Sub 

code

Title

Display

Lamp/Message

Phenomenon

Detail

Though the PCU program 
is operating (the power is 
supplied), the main power 
switch OFF is detected. 

Section

—

Case 1

Cause

Main power switch trouble

Check & 
Remedy

Replace the main power 
switch.

Case 2

Cause

Power supply unit trouble

Check & 
Remedy

Replace the power supply 
unit. 

Case 3

Cause

Harness trouble

Check & 
Remedy

Check connection of the 
harness and the 
connector. 

Main 
code

Sub 

code

Title

Display

Lamp/Message

Phenomenon

Detail

The copy inhibit signal 
from RIC (host) is 
received.

Section

—

Case 1

Cause

Depends on a judgment by 
the host.

Check & 
Remedy

Make notification to the 
host. Use SIM 27-1 to 
ignore.