Chapter 7 Troubleshooting - Sharp AR-F15 Service Manual

CHAPTER 7 TROUBLESHOOTING

6) Measure the winding amount (shift) of the
stack of sheets, and compare this amount
with the standard amounts.
• This amount should be measured at the cen-
ter of the paper leading edge.
First sheet and Second sheet:
0 ± 1mm
First sheet and Third sheet:
4mm or less
Second sheet and Third sheet:
4mm or less
Paper delivery
direction
Figure 7-109
7) If the amount is within the standard, turn
the host machine OFF, and then set all bits
of SW3 to OFF. If the amount is outside
the standard, perform the following.
8) Turn the host machine OFF, and set SW3
on the finisher controller PCB as indicated.
If EEPROM (Q2) on the finisher control-
ler PCB has been replaced, proceed to step
10).
ON
1 2
Figure 7-110
9) Turn the host machine ON, and then press
SW2 on the finisher controller LCB.
• The current setting values are displayed at
LED1.
Adjustment value 0 Lights for 1 second
Adjustment value +N Blinks (lights for 0.2
Adjustment value -N Lights for 1 second
The adjustment width is 1.05mm for each
F15/F16
N=1.
Table 7-101
7-4
Third sheet
Second sheet
First sheet
3 4 5 6 7 8
(once)
second) for N times.
(once), and blinks
(lights for 0.2 second)
for N times.
10) Turn the host machine OFF, and then set
SW3 on the finisher controller PCB as in-
dicated.
ON
1 2 3 4
Figure 7-111
11) Press SW1 or SW2 on the finisher control-
ler PCB as necessary.
• Each press of SW1 increments the winding
amount in 1.05mm increments.
• Each press of SW2 decrements the wind-
ing amount in 1.05mm increments.
Paper
delivery
Third sheet
direction
Second sheet
First sheet
Movement of
direction of
1st sheet by SW2
Figure 7-112
12) Repeat steps 1) though 6) twice. Check that
the winding amount is within the standard
in both times.
13) Turn the host machine OFF, and set all bits
of SW3 to OFF.
This completes the adjustment.
5 6 7 8
Movement of
direction of
1st sheet by SW1
F15/F16