Sharp MX-M364N / MX-565N (serv.man4) Service Manual ▷ View online
MX-M565N ADJUSTMENTS AND SETTINGS 4 – 15
2)
Copy the adjustment chart (created in step 1) to A3 (11" x 17")
paper in DSPF/RSPF duplex mode, and then check the image
for skews (Set in the DSPF/RSPF feed tray so that the mark
on the adjustment chart is at the edge).
paper in DSPF/RSPF duplex mode, and then check the image
for skews (Set in the DSPF/RSPF feed tray so that the mark
on the adjustment chart is at the edge).
* Check with one of the following methods.
[Check Method 1]
[Check Method 2]
Check that the squareness of the main scanning direction
print line for the longitudinal direction of paper is within
1.0mm.
print line for the longitudinal direction of paper is within
1.0mm.
If the front surface copy image is as shown above and the
back surface copy is not as shown above, go to the step 3)
of "ADJ 5C DSPF skew adjustment (Back surface mode)".
back surface copy is not as shown above, go to the step 3)
of "ADJ 5C DSPF skew adjustment (Back surface mode)".
If the above requirement is not met for the paper's front side,
then do step 3).
then do step 3).
3)
Loosen the hinge screws and lower the two attachments.
4)
Open the DSPF/RSPF unit and loosen the screw.
5)
Adjust by turning the DSPF/RSPF skew adjusting screw on the
right side of the DSPF/RSPF rear frame.
right side of the DSPF/RSPF rear frame.
5-C
DSPF skew adjustment
(Back surface mode)
(Back 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)
Create an adjustment chart by printing in duplex mode the self-
print pattern (grid pattern) specified in Simulation 64-2.
print pattern (grid pattern) specified in Simulation 64-2.
SIM 64-2 set values
A = 1,
B = 1,
C = 254,
D = 255
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.
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.
A
B
a
b
C
D
c
d
(Front side)
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
A
0 - 1.0mm
1
2
A
B
Paper pass direction
MX-M565N ADJUSTMENTS AND SETTINGS 4 – 16
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).
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]
[Check Method 2]
Check that the squareness of the main scanning direction
print line for the longitudinal direction of paper is within
1.0mm.
print line for the longitudinal direction of paper is within
1.0mm.
If the back surface copy image is as shown above and the
front surface copy is not as shown above, go to the step 3)
of "ADJ 5B DSPF skew adjustment (Front surface mode)".
front surface copy is not as shown above, go to the step 3)
of "ADJ 5B DSPF skew adjustment (Front surface mode)".
If the back surface copy is not as shown above, perform the
procedures of step 3) or later.
procedures of step 3) or later.
3)
Open the upper door and remove the adjustment cover.
4)
Turn the DSPF skew adjustment screw on the CCD unit to
adjust.
adjust.
ADJ 6
Scan image focus adjustment
6-A
Image focus adjustment (Document table
mode/DSPF/RSPF front surface mode)
mode/DSPF/RSPF front surface mode)
This adjustment is needed in the following situations:
* The CCD unit has been removed from the machine.
* The CCD unit has been replaced.
* When the copy image focus is not properly adjusted.
* When the copy magnification ratio in the copy image main scan-
ning direction is not properly adjusted.
* U2 trouble has occurred.
1)
Enter the SIM 48-1 mode.
2)
Set the adjustment item CCD (MAIN) to 50 (default value).
Select the adjustment item with the scroll key, and enter the
adjustment value with 10-key and press [OK] key.
adjustment value with 10-key and press [OK] key.
3)
Place a scale on the original table as illustrated below.
A
B
a
b
C
D
c
d
(Front side)
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
A
0 - 1.0mm
A
B
S I MU L A TI O N NO . 48 - 0 1
0
T E S T
C L OS E
： C CD ( MA I N )
： C C D( S UB )
： S P F( M AI N )
： S P F( S UB )
： S P FB ( MA I N )
M A GN I FI C AT I O N A DJ U ST M E NT
5 0
A
［ 1 ～ 9 9 ］
A： 5 0
B： 5 0
C： 5 0
D： 5 0
E： 5 0
O K
10 K EY
1 0K E Y
1 0K E Y
10 K EY
1 0K E Y
1 0K E Y
10 K EY
1 0K E Y
1 0K E Y
10 K EY
1 0K E Y
1 0K E Y
10 K EY
10 K EY
1 0 KE Y
4
5
6
1
2
3
7
8
9
*
0
#
B A C K
S T AR T
EX I T
C LE A R
MX-M565N ADJUSTMENTS AND SETTINGS 4 – 17
4)
Make a normal copy on A4 paper.
Press [CLOSE] key to shift from the simulation mode to the
copy mode, and make a copy.
copy mode, and make a copy.
5)
Compare the copied image of the scale and the actual scale
length in terms of length.
length in terms of length.
6)
Obtain the copy magnification ratio correction ratio in the main
scanning direction from the following formula.
scanning direction from the following formula.
Main scanning direction copy magnification ratio correction
ratio = (Original size - Copy image size) / Original size x 100%
ratio = (Original size - Copy image size) / Original size x 100%
(Example)
Compare the scale of 10mm with the scale of 10mm on the
copy image.
Compare the scale of 10mm with the scale of 10mm on the
copy image.
Main scanning direction copy magnification ratio correction
ratio = (100 - 99) / 100 x 100 = 1
ratio = (100 - 99) / 100 x 100 = 1
If the copy magnification ratio is not satisfactory, perform the
following procedures.
following procedures.
7)
Remove the document table glass.
8)
Remove the dark box cover.
9)
To prevent against shift of the CCD unit optical axis, mark the
CCD unit base as shown below.
CCD unit base as shown below.
* This procedure must be executed also when the CCD unit is
replaced.
10) Loosen the CCD unit fixing screws.
* Never loosen the screws marked with X.
If any one of these screws is loosened, the position and the
angle of the CCD unit base may be changed to cause a
problem, which cannot be adjusted in the market. In that
case, the whole scanner unit must be replaced.
angle of the CCD unit base may be changed to cause a
problem, which cannot be adjusted in the market. In that
case, the whole scanner unit must be replaced.
11) Slide the CCD unit in the arrow direction (CCD sub scanning
direction) to change the installing position.
When the copy image is longer than the original scale, shift the
CCD unit in the direction B. When the copy image is shorter
than the original scale, shift the CCD unit in the direction A.
CCD unit in the direction B. When the copy image is shorter
than the original scale, shift the CCD unit in the direction A.
One scale of mark-off line corresponds to 0.2%.
At that time, fix the CCD unit so that it is in parallel with the
scale on the front and the rear side of the CCD unit base.
scale on the front and the rear side of the CCD unit base.
* Fix the CCD unit so that it is in parallel with the line marked
in procedure 9).
12) Make a copy and check the copy magnification ratio again.
If the copy magnification ratio is not in the range of 100 0.8%,
repeat the procedures of 9) - 11) until the condition is satisfied.
repeat the procedures of 9) - 11) until the condition is satisfied.
NOTE: By changing the CCD unit fixing position with the simula-
tion 48-1 adjustment value at 50, the copy magnification
ratio is adjusted within the specified range (100 0.8%)
and the specified resolution is obtained based on the opti-
cal system structure.
ratio is adjusted within the specified range (100 0.8%)
and the specified resolution is obtained based on the opti-
cal system structure.
10
20
90
100
110
10
20
90
100
110
1.0mm
100mm scale
(Orignal)
(Orignal)
Copy image
(1mm (1%)
shorter than
the original)
(1mm (1%)
shorter than
the original)
A
B
MX-M565N ADJUSTMENTS AND SETTINGS 4 – 18
6-B
Image focus adjustment (DSPF back
surface mode)
surface mode)
This adjustment is required in the following cases:
* When the DSPF CCD unit is replaced.
* When the COPY/SCAN/FAX image focus is not properly
adjusted.
* When the DSPF unit is removed.
* When the DSPF unit is replaced.
1)
Make a duplex copy in DSPF mode.
2)
Make sure that the copied image on the back side of the paper
is satisfactorily focused.
is satisfactorily focused.
If the image is not satisfactorily focused, do the following
steps.
steps.
3)
Open the door. Remove the screws and transport PG upper.
4)
To prevent against shift of the CCD unit optical axis, mark the
CCD unit base as shown below.
CCD unit base as shown below.
5)
Loosen the CCD unit fixing screws.
* Never loosen the screws marked with 5.
Loosening these screws could possibly change the CCD
unit base optical axis. Once the optical axis has been
changed, it cannot be corrected through on-site adjust-
ments. Solving such a problem requires the replacement of
the entire scanner unit.
unit base optical axis. Once the optical axis has been
changed, it cannot be corrected through on-site adjust-
ments. Solving such a problem requires the replacement of
the entire scanner unit.
6)
Slide the CCD unit in the arrow direction (CCD sub scanning
direction) to change the installing position. When the copy
image is longer than the original scale, shift the CCD unit in the
direction B. When the copy image is shorter than the original
scale, shift the CCD unit in the direction A. One scale of mark-
off line corresponds to 0.2%. At that time, fix the CCD unit so
that it is in parallel with the scale on the front and the rear side
of the CCD unit base.
direction) to change the installing position. When the copy
image is longer than the original scale, shift the CCD unit in the
direction B. When the copy image is shorter than the original
scale, shift the CCD unit in the direction A. One scale of mark-
off line corresponds to 0.2%. At that time, fix the CCD unit so
that it is in parallel with the scale on the front and the rear side
of the CCD unit base.
* Fix the CCD unit so that it is in parallel with the line marked
in procedure 4).
7)
Make a copy and check the copy magnification ratio again.
If the copy magnification ratio is not in the range of 100 +/-
0.8%, repeat the procedures of 4) - 6) until the condition is sat-
isfied.
0.8%, repeat the procedures of 4) - 6) until the condition is sat-
isfied.
NOTE: By changing the CCD unit fixing position with the simula-
tion 48-1 adjustment value at 50, the copy magnification
ratio is adjusted within the specified range (100 +/- 0.8%)
and the specified resolution is obtained based on the opti-
cal system structure.
ratio is adjusted within the specified range (100 +/- 0.8%)
and the specified resolution is obtained based on the opti-
cal system structure.
ADJ 7
Scan image magnification ratio
adjustment
(Manual adjustment)
adjustment
(Manual adjustment)
This manual adjustment is used when the automatic adjustment of
SIM 50-28 cannot obtain a satisfactory result.
SIM 50-28 cannot obtain a satisfactory result.
This adjustment is needed in the following situations:
* When the copy image magnification ratio in the sub scanning
direction is not properly adjusted.
* When the scanner motor is replaced.
* When a U2 trouble occurs.
* When the scanner control PWB is replaced.
* When the EEPROM on the scanner control PWB is replaced.
Before this adjustment, the focus adjustment (CCD unit installing
position adjustment) must have been completed.
position adjustment) must have been completed.
A
B
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