MX-FNX3, MX-FNX4. MXFNX3 and MXFNX4 Service Manual - Sharp Copying Equipment Service Manual (repair manual). Page 114

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MX-FNX4  ADJUSTMENTS  8 – 1
MX-FNX4
Service Manual
 
[8] ADJUSTMENTS
1. Finisher, saddle stitcher section
A. Basic adjustments
(1) Upper curl mode
a. Outline
Paper may not be stacked properly depending on the paper state.
(Refer to the figure below.)
In such a case:
1) Turn back and set the paper in the paper feed cassette.
If the upper curl is greater than that before resetting the paper,
turn back the paper again to set in the previous state. 
B. Adjustments when replacing parts
(1) Adjustment of alignment position
This adjustment is required when the finisher controller PCB is
replaced or when it is required to change the alignment position for
some reason.
1)
Remove the rear cover in the finisher.
2)
Check to confirm that the power of the host machine is turned
OFF, and set SW104 on the finisher controller PCB as shown
below, according to the paper used for the adjustment.
3)
Turn ON the power of the host machine.
4)
Press the SW103 on the finisher controller PCB once.
* When the SW103 is pressed, the swing guide is opened to
shift the alignment plates to the specified position.
5)
Insert ten sheets of A4/LTR paper between the alignment
plates, and push the paper so that it is in contact with the stop-
per.
6)
Press the SW101 or SW102 on the finisher controller PCB
until the alignment plates come in contact with paper.
* When the SW101 is pressed, the alignment plate is shifted
to the front side by 0.42mm.
* When the SW102 is pressed, the alignment plate is shifted
to the rear side by 0.42mm.
7)
After the adjustment is completed, remove the paper, and
press the SW103 on the finisher controller PCB once to save
the adjustment value.
8)
Set all the bits of the SW104 on the finisher controller PCB to
OFF.
9)
Turn OFF the power of the host machine, and install the rear
cover of the finisher.
(2) Adjustment of staple position
This adjustment is performed when the finisher controller PCB is
replaced or when it is required to change the staple position for
some reason. If the paper used for the adjustment is of AB series,
front/back stapling adjustments are performed for A4/A4R, respec-
tively. When the paper used for the adjustment is of inch series,
front/back binding adjustments are performed for LTR/LTRR,
respectively.
1)
Remove the rear cover of the finisher.
2)
Check to confirm that the power of the host machine is turned
OFF, and set the SW104 on the finisher controller PCB as
shown below, according to the paper used for the adjustment
and the stapling position.
When A4 is used
When LTR is used
A4/staple in the front
A4R/staple in the front
LTR/staple in the front
LTRR/staple in the front
A4/staple at the back
A4R/staple at the back
LTR/staple at the back
LTRR/staple at the back
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