Read Sharp AR-F12 (serv.man8) Service Manual online
8-7
CHAPTER 8 TROUBLESHOOTING
C.
Electrical System (puncher
unit (option))
unit (option))
1.
Sensor output adjustment
Perform this adjustment when the punch
driver PCB, transmission sensor (photosensor
PCB/LED PCB) or reflection sensor (scrap full
detection PCB unit) has been replaced.
1) Remove the rear cover of the finisher unit.
2) Set bits 1 through 6 of DIPSW3 on the fin-
PCB/LED PCB) or reflection sensor (scrap full
detection PCB unit) has been replaced.
1) Remove the rear cover of the finisher unit.
2) Set bits 1 through 6 of DIPSW3 on the fin-
isher controller PCB as indicated.
5
6
7
8
Figure 8-117
3) Press SW1 on the finisher controller PCB.
Pressing this switch automatically adjusts
sensor output.
sensor output.
4) Set all bits on DIPSW3 to OFF.
2.
Registering the number of punch
holes
holes
This operation registers which puncher unit
is attached to the IC on the punch driver PCB
so that the puncher unit can be identified by the
finisher. For this reason, this operation must be
performed when the punch driver PCB has been
replaced.
1) Remove the rear cover of the finisher unit.
2) Set bits 1 through 6 of DIPSW3 on the fin-
so that the puncher unit can be identified by the
finisher. For this reason, this operation must be
performed when the punch driver PCB has been
replaced.
1) Remove the rear cover of the finisher unit.
2) Set bits 1 through 6 of DIPSW3 on the fin-
isher controller PCB as indicated.
5
6
7
8
Figure 8-118
3) Set bits 7 and 8 on DIPSW3 on the finisher
controller PCB to match the number of
punch holes of the attached puncher unit
according to Table 7-103.
punch holes of the attached puncher unit
according to Table 7-103.
4) Press SW1 on the finisher controller PCB.
Press SW2 when setting a 2-/3-hole model
(AR-PN3A). Pressing this switch registers
the number of punch holes to the punch
driver PCB.
(AR-PN3A). Pressing this switch registers
the number of punch holes to the punch
driver PCB.
Number of
DIPSW3 bit
Push
Punch Holes
settings
switch
bit 7
bit 8
2-hole
OFF
OFF
SW1
(AR-PN3B)
2-/3-hole
OFF
OFF
SW2
(AR-PN3A)
4-hole
ON
OFF
SW1
(AR-PN3C)
4-hole
ON
ON
SW1
(AR-PN3D)
Table 8-103
5) Set all bits on DIPSW3 to OFF.
3.
Checking the sensitivity level of the
transmission sensor
transmission sensor
How dirty the transmission sensor
(photosensor PCB/LED PCB) can be checked
by the number of times that LED1 on the fin-
isher controller PCB lights. For this reason, how
dirty the transmission sensor is serves as a guide
for when to perform cleaning during periodic
maintenance.
1) Remove the rear cover of the finisher unit.
2) Set bits 1 through 6 of DIPSW3 on the fin-
by the number of times that LED1 on the fin-
isher controller PCB lights. For this reason, how
dirty the transmission sensor is serves as a guide
for when to perform cleaning during periodic
maintenance.
1) Remove the rear cover of the finisher unit.
2) Set bits 1 through 6 of DIPSW3 on the fin-
isher controller PCB as indicated.
5
6
7
8
Figure 8-119
Click on the first or last page to see other AR-F12 (serv.man8) service manuals if exist.