Sharp MX-M260 / MX-M260N / MX-M260FG / MX-M260FP (serv.man3) Service Manual ▷ View online
MX-M260/M310/M260N/M310N ADJUSTMENTS 5 - 5
(6) Main scanning direction (FR direction) distortion
balance adjustment
1) Remove the OC glass, the right cabinet and the upper right side
cover.
2) Loosen the copy lamp unit wire fixing screw.
3) Manually turn the mirror base drive pulley and bring No. 2/3 mirror
base unit into contact with the positioning plate.
At that time, if the front frame side and the rear frame side of No. 2/
3 mirror base unit are brought into contact with the positioning
plate at the same time, the mirror base unit parallelism is proper.
3 mirror base unit are brought into contact with the positioning
plate at the same time, the mirror base unit parallelism is proper.
If one of them is in contact with the positioning plate, perform the
adjustment of 4).
adjustment of 4).
4) Loosen the set screw of the scanner drive pulley which is not in
contact with No. 2/3 mirror base unit positioning plate.
5) Without moving the scanner drive pulley shaft, manually turn the
scanner drive pulley until the positioning plate is brought into con-
tact with No. 2/3 mirror base unit, then fix the scanner drive pulley.
tact with No. 2/3 mirror base unit, then fix the scanner drive pulley.
6) Put No. 2/3 mirror base unit on the positioning plate again, push
the projections on the front frame side and the rear frame side of
the copy lamp unit to the corner frame, and tighten the wire fixing
screw.
the copy lamp unit to the corner frame, and tighten the wire fixing
screw.
(7) Sub scanning direction (scanning direction) distortion
adjustment (Winding pulley position adjustment)
This adjustment must be performed in the following cases:
• When the mirror base drive wire is replaced.
• When the lamp unit, or No. 2/3 mirror holder is replaced.
• When a copy as shown is made.
1
1
3
6
5
4
4
1
2
1
Wire fixing screw
Lb
La
Original
Copy
Paper exit
direction
direction
MX-M260/M310/M260N/M310N ADJUSTMENTS 5 - 6
1) Set A3 (11" x 17") white paper on the original table as shown
below.
2) Open the original cover and make a normal (100%) copy.
3) Measure the width of the black background at the lead edge and at
the rear edge.
If the width (La) of the black background at the lead edge is equal
that (Lb) at the rear edge, there is no need to execute the following
procedures of 4) – 7).
that (Lb) at the rear edge, there is no need to execute the following
procedures of 4) – 7).
4) Loosen the mirror base drive pulley fixing screw on the front frame
side or on the rear frame side.
5) Tighten the fixing screw of the mirror base drive pulley.
<Adjustment specification>
La = Lb
6) Execute the main scanning direction (FR) distortion balance
adjustment previously described in 2) again.
(8) Main scanning direction (FR direction) distortion
balance adjustment (Rail height adjustment)
When there is no skew copy in the mirror base scanning direction and
there is no horizontal error (right angle to the scanning direction), the
adjustment can be made by adjusting the No. 2/3 mirror base unit rail
height.
there is no horizontal error (right angle to the scanning direction), the
adjustment can be made by adjusting the No. 2/3 mirror base unit rail
height.
Before performing this adjustment, be sure to perform the horizontal
image distortion adjustment in the laser scanner section.
image distortion adjustment in the laser scanner section.
This adjustment must be performed in the following cases:
• When the mirror base wire is replaced.
• When the copy lamp unit and no. 2/3 mirror unit are replaced.
• When the mirror unit rail is replaced and moved.
• When a following copy is made.
1) Make an original for the adjustment.
Make test sheet by drawing parallel lines at 10mm from the both
ends of A3 (11" x 17") white paper as shown below. (These lines
must be correctly parallel to each other.)
ends of A3 (11" x 17") white paper as shown below. (These lines
must be correctly parallel to each other.)
2) Make a normal (100%) copy of the test sheet on A3 (11" x 17")
paper. (Fit the paper edge and the glass holding plate edge.)
3) Measure the distances (La, Lb, Lc, Ld) at the four corners as
shown below.
When La = Lb and Lc = Ld, no need to perform the procedures 4)
and 5).
and 5).
• When La < Lb
Turn the mirror base drive pulley on the front frame side in the
arrow direction A. (Do not move the mirror base drive pulley shaft.)
arrow direction A. (Do not move the mirror base drive pulley shaft.)
• When La > Lb
Turn the mirror base drive pulley on the rear frame side in the
arrow direction A. (Do not move the mirror base drive pulley shaft.)
arrow direction A. (Do not move the mirror base drive pulley shaft.)
Place a little clearance from
the rear side original guide.
the rear side original guide.
Glass holding plate
A3 (11" x 17") white paper
Fit the paper edge and
the glass holding plate edge.
the glass holding plate edge.
Paper exit direction
La: Lead edge black background width
Lb: Rear edge black background width
Lb: Rear edge black background width
A
B
Rear side
Front side
Original
Copy A
Copy B
10mm
10mm
10mm
10mm
Parallel line
Parallel line
White paper
La
Lb
Ld
Lc
Paper exit
direction
direction
MX-M260/M310/M260N/M310N ADJUSTMENTS 5 - 7
4) Move the mirror base B rail position up and down (in the arrow
direction) to adjust.
<Adjustment specification>
La = Lb, Lc = Ld
5) After completion of adjustment, manually turn the mirror base drive
pulley, scan the mirror base A and mirror base B fully, and check
that the mirror bases are not in contact with each other.
that the mirror bases are not in contact with each other.
∗
If the mirror base rail is moved extremely, the mirror base may be in
contact with the frame or the original glass. Be careful to avoid this.
contact with the frame or the original glass. Be careful to avoid this.
(9) Main scanning direction (FR direction) magnification
ratio adjustment (SIM 48-1)
Note: Before performing this adjustment, be sure to check that the
CCD unit is properly installed.
1) Put a scale on the original table as shown below.
2) Execute SIM 48-1.
3) After warm-up, shading is performed and the current set value of
the main scanning direction magnification ratio is displayed on the
display section in 2 digits.
display section in 2 digits.
4) Manual correction mode (SIM48-1-1)
Enter the set value and press the start key.
The correction value is stored and a copy is made.
<Adjustment specification>
Note: A judgment must be made with 200mm width, and must not be
Note: A judgment must be made with 200mm width, and must not be
made with 100mm width.
(10) Sub scanning direction (scanning direction)
magnification ratio adjustment
(SIM 48-1-2, SIM 48-1-3)
(SIM 48-1-2, SIM 48-1-3)
a. OC mode in copying
Note: Execute the procedure after completion of SIM 48-1-1.
1) Put a scale on the original table as shown below, and make a nor-
mal (100%) copy.
2) Compare the scale image and the actual scale.
If necessary, perform the following adjustment procedures.
3) Execute SIM 48-1-2.
4) Enter the set value and press the start key.
The set value is stored and a copy is made.
<Adjustment specification>
b. RSPF mode in copying
Note: Before performing this adjustment, be sure to check that the
CCD unit is properly installed and that OC mode adjustment in
copying has been completed.
copying has been completed.
1) Put a scale on the original table as shown below, and make a nor-
mal (100%) copy to make a test chart.
Note: Since the printed copy is used as a test chart, put the scale in
parallel with the front side edge of the glass.
2) Set the test chart on the RSPF and make a normal (100%) copy.
3) Compare the scale image and the actual image.
If necessary, perform the following adjustment procedures.
4) Execute SIM 48-1-3.
5) After warm-up, shading is performed.
The current front surface sub scanning direction magnification ratio
correction value is displayed in two digits on the display section.
correction value is displayed in two digits on the display section.
• When La > Lb
Shift the mirror base B rail upward by the half of the difference of
La–Lb.
La–Lb.
• When La < Lb
Shift the mirror base B rail downward by the half of the difference
of Lb–La.
of Lb–La.
Example: When La = 12mm and Lb = 9mm, shift the mirror base
B rail upward by 1.5mm.
• When Lc >Ld
Shift the mirror base B rail downward by the half of the difference
of Lc–Ld.
of Lc–Ld.
• When Lc < Ld
When Lc < Ld, move the mirror base B on the paper feed side
upward.
upward.
∗
When moving the mirror base rail, hold the mirror base rail with
your hand.
your hand.
Adjustment
mode
Spec value
SIM
Set value
Setting
range
Main scanning
direction
magnification
ratio
direction
magnification
ratio
At normal:
±1.0%
±1.0%
48-
1-1
1-1
Add 1: 0.1%
increase
Reduce 1: 0.1%
decrease
increase
Reduce 1: 0.1%
decrease
1 – 99
Adjustment
mode
Spec value
SIM
Set value
Setting
range
Sub scanning
direction
magnification
ratio (OC mode)
direction
magnification
ratio (OC mode)
At normal:
±1.0%
±1.0%
48-1-
2
Add 1:
0.05% increase
Reduce 1:
0.05% decrease
0.05% increase
Reduce 1:
0.05% decrease
1 – 99
MX-M260/M310/M260N/M310N ADJUSTMENTS 5 - 8
6) Enter the set value and press the start key.
The set value is stored and a copy is made.
7) Execute SIM 48-1-4.
The current back surface sub scanning direction magnification ratio
is displayed in two digits on the display section.
is displayed in two digits on the display section.
8) Enter the set value and press the start key.
The set value is stored and a copy is made.
<Adjustment specification>
(11) Off center adjustment (RSPF mode)
Note: Before performing this adjustment, be sure to check that the
paper off center is properly adjusted.
1) Place the center position adjustment test chart (sheet with a
straight line in the scan direction at the center) on the RSPF.
2) Make a normal copy from the manual paper feed tray, and check
the printed copy with the test chart.
If any adjustment is required, perform the following procedure.
3) Execute SIM 50-12.
4) After warm-up, shading is performed and the current set value of
the off center adjustment is displayed on the display section in 2
digits.
digits.
5) Enter the set value and press the start key.
The set value is stored and a copy is made.
<Adjustment specification>
(12) OC (RSPF) open/close detection position adjustment
1) Execute SIM 41-3.
2) Gradually close the OC (RSPF) from the full open position, and
measure distance A when the display on the operation panel
changes. (See the figure below.)
changes. (See the figure below.)
Distance A = Table glass top - OC (RSPF) handle rib
<Adjustment specification>
OC (SPF) open/close position A: 125 – 225mm
3) If the distance is outside the specified range, adjust the open/close
sensor attachment plate position as shown below.
(13) Original sensor adjustment (SIM 41-2, 41-4)
1) Set A3 (11" x 17") paper on the OC table.
(Keep the SPF (OC cover) open.)
2) Execute SIM 41-2.
3) Keep A=125mm, and execute SIM 41-4. (Do not put paper on the
table.)
4) Check the reaction with SIM 41-1.
(14) RSPF white correction pixel position adjustment
(required in an RSPF model when replacing the lens
unit) (SIM63-7)
unit) (SIM63-7)
1) Fully open the RSPF.
2) Execute SIM 63-7.
3) When the operation panel displays "COMPLETE," the adjustment
is completed.
4) If the operation panel displays "ERROR," perform the following
measures.
• When the display is 0:
Check that the SPF is open.
Check that the lamp is ON. (If the lamp is OFF, check the MCU con-
nector.)
Check that the CCD harness is properly inserted into the MCU con-
nector.
Check that the lamp is ON. (If the lamp is OFF, check the MCU con-
nector.)
Check that the CCD harness is properly inserted into the MCU con-
nector.
• When the display is 281 or above:
1) Remove the table glass.
2) Remove the dark box.
3) Slide the lens unit toward the front side and attach it, then exe-
cute SIM.
• When the display is 143 or below:
1) Remove the table glass.
2) Remove the dark box.
3) Slide the lens unit toward the rear side and attach it, then execute
SIM.
∗
When the lens unit is moved, execute the OC main scanning magni-
fication ratio auto adjustment, SIM 48-1-1.
fication ratio auto adjustment, SIM 48-1-1.
∗
This adjustment is basically O.K. with SIM 63-7.
Adjustment mode
Spec
value
SIM
Set value
Setting
range
Sub scanning
direction
magnification ratio
(RSPF mode)
direction
magnification ratio
(RSPF mode)
At normal:
±1.0%
±1.0%
48-1-3
48-1-4
48-1-4
Add 1:
0.05% increase
0.05% increase
Reduce 1:
0.05% decrease
0.05% decrease
1 – 99
Adjustment
mode
Spec value
SIM
Set value
Setting
range
Original off
center mode
(RSPF
mode)
center mode
(RSPF
mode)
Single: Center
± 3.0mm
± 3.0mm
50-12
Add 1: 0.1mm
shift to R side
shift to R side
1 – 99
Duplex: Center
±3.5mm
±3.5mm
Reduce 1: 0.1mm
shift to L side
shift to L side
A
･
Distance < 125mm: Shift toward A.
･
Distance > 225mm: Shift toward B.
A
B
R
F
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