AR-C170 (serv.man28). Troubleshooting - Sharp Copying Equipment Service Manual (repair manual). Page 10

AR-C170M  TROUBLESHOOTING  11 - 10

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Phenomenon Detail

The push bar home position 
signal is not acknowledged 
within 2sec from the start of 
initializing. The home 
position sensor remains ON 
after 20 pulses of shift 
operation of the push bar 
from its home position.

Section

Sorter

Common

Check

Execute SIM 3-2 and 3-3 to 
check the push bar drive 
motor operations and the 
sensor operations.

Case 1

Cause

Push bar motor trouble

Check & 
Remedy

Replace the push bar 
motor.

Case 2

Cause

Push bar home position 
sensor trouble

Check & 
Remedy

Replace the push bar home 
position sensor.

Case 3

Cause

The circuit breaker (CB1) is 
operating.

Check & 
Remedy

Remove the cause for 
operation of the circuit 
breaker, and reset the 
circuit breaker.

Case 4

Cause

There is a mechanical bur 
in the push bar shifting 
path.

Check & 
Remedy

Repair the mechanism to 
remove the bur.

Case 5

Cause

Sorter controller PWB 
trouble

Check & 
Remedy

Replace the sorter 
controller PWB, and 
perform the bin paper 
sensor sensitivity 
adjustment and the guide 
bar motor oscillating range 
adjustment.

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Phenomenon Detail

The lead cam position 
sensor signal is not 
acknowledged within 3.4sec 
(2.4sec) from the bin shift 
motor ON signal. The 
operation is not completed 
within 30sec from the start 
of bin's shift operation to its 
home position. The rotation 
sensor output signal is not 
detected within 0.25sec 
from output of the bin shift 
motor ON signal.

Section

Sorter

Common

Check

Execute SIM 3-2 and 3-3 to 
check the guide bar drive 
motor operations and the 
sensor operations. (Case 1, 
2)
Check the voltage (about 
24V) between J8-1 and J8-
2 on the bin shift motor 
driver PWB at the timing of 
the bin shift motor. (Case 3 
to 5)

Case 1

Cause

Cable trouble between the 
bin shift motor and the 
sorter controller PWB.

Check & 
Remedy

Check and connect the 
cable properly between the 
bin shift motor and the 
sorter controller PWB.

Case 2

Cause

The circuit breaker (CB1) is 
operating.

Check & 
Remedy

Remove the cause for 
operation of the circuit 
breaker, and reset the 
circuit breaker.

Case 3

Cause

Wiring trouble of the bin 
shift motor (M1).

Check & 
Remedy

Correct wiring of the bin 
shift motor.

Case 4

Cause

Bin shift motor trouble

Check & 
Remedy

Replace the bin shift motor.

Case 5

Cause

Sorter controller PWB 
trouble

Check & 
Remedy

Replace the sorter 
controller PWB, and 
perform the bin paper 
sensor sensitivity 
adjustment and the guide 
bar motor oscillating range 
adjustment.

Case 6

Cause

Bin shift mechanism trouble

Check & 
Remedy

Repair the mechanism.