Sharp MX-4100N / MX-4101N / MX-5000N / MX-5001N (serv.man13) Service Manual ▷ View online
MX-4101N ADJUSTMENTS 5 – 33
E
Is there a
resistance in the
section B?
Yes
No
Increase the
clearance in
the section F
until there is a
resistance in
the section B.
However, the
max. is 5.0mm.
clearance in
the section F
until there is a
resistance in
the section B.
However, the
max. is 5.0mm.
F
F
20mm
a
4.3
-
5.0mm
c) Adjust the section F.
*
If not, turn the section E to adjust.
Use a clearance gauge to check to confirm that the clearance
in the section F is 4.3mm - 5.0mm.
in the section F is 4.3mm - 5.0mm.
Turn section E clockwise to lift the RSPF unit. Turn it
counterclockwise to move down the RSPF unit.
counterclockwise to move down the RSPF unit.
* Insert a clearance gauge in the range of 20mm from the
edge (a) of the right lower cover of the base.
Adjust the
section F so that
the clearance is
4.3mm - 5.0mm.
a
MX-4101N ADJUSTMENTS 5 – 34
E
Yes
Yes
No
No
End of the
adjustment
adjustment
The bosses in section A
and B are excessively
pressed. (The right
side is separating.)
and B are excessively
pressed. (The right
side is separating.)
Adjust hinge
E until the
separation in
section C is
deleted.
(Counter-
clockwise)
E until the
separation in
section C is
deleted.
(Counter-
clockwise)
Is
there a re-
sistance?
Is there
a separating
section.
Check section C.
e) If it can be pulled out without resistance, turn the hinge in
section E clockwise to adjust.
f) Check section C.
*
d) Check section B.
*
Check to insure that a slight resistance is felt when pulling out
the RSPF height adjustment sheet. (If the boss in section B is
in contact, it is O.K.)
the RSPF height adjustment sheet. (If the boss in section B is
in contact, it is O.K.)
Slowly pull out the RSPF height adjustment sheet.
Place the RSPF height adjustment sheet between section B
and the SPF glass height adjustment resin surface (a), and
close the RSPF unit.
and the SPF glass height adjustment resin surface (a), and
close the RSPF unit.
Be careful not to put the book sensor (b) on the height
adjustment sheet.
adjustment sheet.
Check section B.
a
B
b
b
C
b
C
MX-4101N ADJUSTMENTS 5 – 35
13-B
RSPF diagonal adjustment
1)
Set a test chart (A3) on the RSPF document tray, and make a
copy.
copy.
2)
Measure (a) and (b) on the copied test chart. If (a) - (b) =
±1mm or more, perform the diagonal adjustment.
±1mm or more, perform the diagonal adjustment.
3)
Remove the hex nut cover in the RSPF diagonal adjustment
screw section.
screw section.
4)
Raise the RSPF unit upright, and loosen the fixing screw of the
hinge.
hinge.
5)
Close the RSPF unit, and loosen the hex nut of the RSPF
diagonal adjustment screw section.
Turn the hex wrench of the RSPF skew adjustment screw to
adjust the skew.
diagonal adjustment screw section.
Turn the hex wrench of the RSPF skew adjustment screw to
adjust the skew.
* In the case of (A), turn the RSPF diagonal adjustment screw
counterclockwise.
In the case of (B), turn the RSPF diagonal adjustment screw
clockwise.
In the case of (B), turn the RSPF diagonal adjustment screw
clockwise.
6)
Make a copy again and measure (a) and (b) on the copied test
chart. Repeat procedures 2) to 5) until the condition ((a)-
(b)=
chart. Repeat procedures 2) to 5) until the condition ((a)-
(b)=
±1mm or less) is satisfied.
7)
Tighten the hinge section fixing screw which was loosened in
the procedure 4) to tighten the hinge section.
the procedure 4) to tighten the hinge section.
a
b
TEST CHART
A3 size
1
2
2
3
1
2
A
B
MX-4101N ADJUSTMENTS 5 – 36
13-C
DSPF levelness adjustment
This adjustment is needed in the following situations:
* The DSPF section has been disassembled.
* The DSPF unit has been replaced.
1)
* The DSPF section has been disassembled.
* The DSPF unit has been replaced.
1)
Close the DSPF unit and check the clearance between the
projections in the front side and the rear side and the SPF
glass holding resin surface.
projections in the front side and the rear side and the SPF
glass holding resin surface.
2)
Visually check to insure that the clearance A is 1mm or less
and the clearance B is 0mm (in contact).
and the clearance B is 0mm (in contact).
If the above requirement is not met, do step 3.
3)
Turn the height adjustment screw to adjust the DSPF front/rear
frame horizontal level.
frame horizontal level.
When the front frame side is higher (there is a clearance in B):
Turn the height adjustment screw R of the DSPF rear frame
clockwise.
When the rear frame side is higher (clearance A is more than
1mm): Turn the height adjustment screw L of the DSPF rear
frame counterclockwise.
Repeat steps 2 to 3 until an acceptable result is obtained.
Turn the height adjustment screw R of the DSPF rear frame
clockwise.
When the rear frame side is higher (clearance A is more than
1mm): Turn the height adjustment screw L of the DSPF rear
frame counterclockwise.
Repeat steps 2 to 3 until an acceptable result is obtained.
4)
After adjustments of A and B, check to insure that the projec-
tion on the front right side is in contact with the glass surface of
the main unit.
tion on the front right side is in contact with the glass surface of
the main unit.
13-D
DSPF skew adjustment
(Front surface mode)
This adjustment is needed in the following situations:
* The DSPF section has been disassembled.
* When replacing the DSPF unit.
* The DSPF unit generates skewed scanned images.
1)
* The DSPF section has been disassembled.
* When replacing the DSPF unit.
* The DSPF unit generates skewed scanned images.
1)
Create an adjustment chart by printing in duplex mode the self-
print pattern 1 (grid pattern) specified in Simulation 64-1.
Make sure that the print grid pattern is almost in parallel with
the paper edges, and apply position marks 'A', 'B', 'C' and 'D' to
the leading and trailing edges of the paper for both front and
back sides of the paper.
print pattern 1 (grid pattern) specified in Simulation 64-1.
Make sure that the print grid pattern is almost in parallel with
the paper edges, and apply position marks 'A', 'B', 'C' and 'D' to
the leading and trailing edges of the paper for both front and
back sides of the paper.
2)
Copy the adjustment chart (created in step 1) to A3 (11" x 17")
paper in DSPF duplex mode, and then check the image for
skews (Set in the DSPF feed tray so that the mark on the
adjustment chart is at the edge).
• Check with one of the following methods.
paper in DSPF duplex mode, and then check the image for
skews (Set in the DSPF feed tray so that the mark on the
adjustment chart is at the edge).
• Check with one of the following methods.
[Check Method 1]
A
B
0mm
1mm
R
L
A
B
Paper pass direction
A
B
a
b
C
D
c
d
(Front side)
Make sure that the output satisfies the condition: |a-b| ± 1 mm
Make sure that the output satisfies the condition: |a-b| ± 1 mm
(Back side)
Make sure that the output satisfies the condition: |c-d| ± 1 mm
Make sure that the output satisfies the condition: |c-d| ± 1 mm
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