Sharp MX-M200D / MX-M200DK (serv.man2) Service Manual ▷ View online
MX-M200D ADJUSTMENT 6-5
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. If one of them is in contact
with the positioning plate, perform the adjustment of 4).
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. If one of them is in contact
with the positioning plate, perform the 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 contact
with No. 2/3 mirror base unit, then fix the scanner drive pulley.
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.
copy lamp unit to the corner frame, and tighten the wire fixing screw.
Wire fixing screw
MX-M200D ADJUSTMENT 6-6
(3)Main scanning direction (FR direction) distortion
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.
•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) 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
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).
(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 mirror base drive pulley fixing screw.
<Adjustment specification>
La = Lb
6) Execute the main scanning direction (FR) distartion balance
adjustment previously described in 2) again.
(4) Sub scanning direction (scanning direction) distortion
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.
Before performing this adjustment, be sure to perform the horizontal
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 or No. 2/3 mirror unit is replaced.
•When the mirror unit rail is replaced or moved.
•When a following copy is made.
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.
This adjustment must be performed in the following cases:
•When the mirror base wire is replaced.
•When the copy lamp unit or No. 2/3 mirror unit is replaced.
•When the mirror unit rail is replaced or moved.
•When a following copy is made.
Lb
La
Original
Copy
Paper exit
direction
direction
Fit the paper edge and
the glass holding plate edge.
the glass holding plate edge.
A3
(11"
x 17") white paper
Glass holding plate
Allow a little space.
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
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 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.)
Original
Copy A
Copy B
MX-M200D ADJUSTMENT 6-7
1) Making of a test sheet
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 with 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).
4) Move the mirror base F rail position up and down (in the arrow
direction) to adjust.
Note:Do not adjust the rail on the rear side.
If the rail on the rear side is adjusted, an error may occur.
Only the rail on the front side can be adjusted.
Only the rail on the front side can be adjusted.
<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.
the mirror bases are not in contact with each other.
*
If the mirror base rail is adjusted to extreme, the mirror base may
contact the frame or original glass. Be careful to avoid this.
contact the frame or original glass. Be careful to avoid this.
(5) Main scanning direction (FR direction) magnification
ratio adjustment (SIM 48-1)
Note: Before performing this adjustment, be sure the CCD unit is within
specification.
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
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) Select the mode and press the [START] key again.
5) Manual correction mode (TEXT indicator ON)
5) Manual correction mode (TEXT indicator ON)
Enter the set value and press the [START] key.
The set value is stored and a copy is made.
10mm
10mm
10mm
10mm
Parallel line
White paper
Parallel line
La
Lb
Ld
Lc
Paper exit
direction
direction
When La > Lb
Shift the mirror base B rail upward by the half of the
difference of La - Lb.
Shift the mirror base B rail upward by the half of the
difference of La - Lb.
When La < Lb
Shift the mirror base B rail downward by the half of the
difference of Lb - La.
Example: When La = 12mm and Lb = 9mm, shift the mirror
Shift the mirror base B rail downward by the half of the
difference 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.
Shift the mirror base B rail downward by the half of the
difference of Lc - Ld.
When Lc < Ld
Shift the mirror base B rail downward by the half of the
difference of Ld - Lc.
Shift the mirror base B rail downward by the half of the
difference of Ld - Lc.
When moving the mirror base rail, hold the mirror base rail
with your hand.
with your hand.
MX-M200D ADJUSTMENT 6-8
<Adjustment specification>
Note: A judgment must be made with 200mm width, and must not be
made with 100mm width.
(6) Sub scanning direction (scanning direction)
magnification ratio adjustment (SIM 48-1, SIM 48-5)
a. OC mode in copying (SIM48-1)
Note:Before performing this adjustment, be sure the CCD unit is within
specification.
1) Put a scale on the original table as shown below, and make a normal
(100%) copy.
2) Compare the scale image and the actual image. If necessary,
perform the following adjustment procedures.
3) Execute SIM 48-1.<<PHOTO>>
4) After warm-up, shading is performed and the current set value of the
4) 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.
5) When the photo indicator is lighted by pressing the AUTO/TEXT/
PHOTO key, the current magnification ratio correction value in the
sub scanning direction is displayed in lower 2 digits of the display
section.
sub scanning direction is displayed in lower 2 digits of the display
section.
6) Enter the set value and press the [START] key.
The set value is stored and a copy is made.
<Adjustment specification>
b. RSPF sub scanning direction magnification ratio (SIM48-5)
Note:
•Before performing this adjustment, be sure the CCD unit is within
•Before performing this adjustment, be sure the CCD unit is within
specification.
•Before performing this adjustment, the OC mode adjustment in copying
must be completed.
1) Put a scale on the original table as shown below, and make a normal
(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 edge lines.
2) Set the test chart on the SPF and make a normal (100%) copy.
3) Compare the scale image and the actual image. If necessary,
3) Compare the scale image and the actual image. If necessary,
perform the following adjustment procedures.
4) Execute SIM 48-5.
5) After warm-up, shading is performed.
5) After warm-up, shading is performed.
The AUTO indicator lights up and the current front surface sub
scanning direction magnification ratio correction value is displayed in
two digits on the display section.
scanning direction magnification ratio correction value is displayed in
two digits on the display section.
6) Enter the set value and press the [START] key.
The set value is stored and a copy is made.
7) Change the mode from the duplex original mode to the simplex
original mode.
TEXT indicator lights up and the current back surface sub scanning
direction magnification ratio is displayed in two digits on the display
section.
direction magnification ratio 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>
(7) Off center adjustment (SIM 50-12)
a. OC mode (SIM50-12)
1) Make a test chart as shown below and set it so that its center line is
fit with the original guide center mark.
*
To make a test chart, draw a line on A3 or 11" x 17" paper at the
center in the paper transport direction.
center in the paper transport direction.
2) Make a normal copy from the bypass tray, and compare the copy and
the test chart.
If necessary, perform the following adjustment procedures.
3) Execute SIM 50-12.
4) After warm-up, shading is performed and the current set value of the
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.
5) Enter the set value and press the [START] key.
The set value is stored and a copy is made.
<Adjustment specification>
Mode
Specification
SIM
Set value
Set range
Main scanning
direction
magnification
ratio
direction
magnification
ratio
At normal:
±1.0%
±1.0%
SIM 48-1 Add 1:0.1%
increase
Reduce 1:
0.1%
Reduce 1:
0.1%
decrease
1 ~ 99
Mode
Specification
SIM
Set value
Set range
Sub scanning
direction
magnification
ratio
(OC mode)
direction
magnification
ratio
(OC mode)
Normal
±1.0%
SIM 48-1
(PHOTO)
Add 1:0.1%
increase
Reduce 1:
0.1%
decrease
increase
Reduce 1:
0.1%
decrease
1 ~ 99
Mode
Specification
SIM
Set value
Set range
Sub scanning
direction
magnification
ratio
direction
magnification
ratio
(SPF mode)
Normal
±1.0%
SIM 48-5 Add 1:0.1%
increase
Reduce 1:
0.1%
decrease
Reduce 1:
0.1%
decrease
1 ~ 99
Mode
Specification
SIM
Set value
Set range
Original off
center mode
(OC mode)
center mode
(OC mode)
Single:
Center ±2.0mm
Center ±2.0mm
SIM 50-12
(AUTO
indicator
ON)
Add 1:
0.1mm shift
to R side
Reduce 1:
0.1mm shift
to L side
to R side
Reduce 1:
0.1mm shift
to L side
1 ~ 99
Center
Original guide
Copy paper
(A3 or 17" x 11")
(A3 or 17" x 11")
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