Sharp MX-M364N / MX-565N (serv.man4) Service Manual ▷ View online
MX-M565N ADJUSTMENTS AND SETTINGS 4 – 11
RV: REAR VOID AREA
FV: FRONT VOID AREA
RV + FV 4.0mm
RV = 2.0 ±2.0mm
FV = 2.0 ±2.0mm
If the above requirement is not met, do the following steps.
6)
Change the adjustment value.
Enter the adjustment value and press the [OK] key or the
[EXECUTE] key.
[EXECUTE] key.
When [EXECUTE] key is pressed, the adjustment pattern is
printed. When the adjustment value is increased, the adjust-
ment pattern is shifted to the front frame side. When it is
decreased, the adjustment pattern is shifted to the rear frame
side. When the set value is changed by 1, the shift distance is
changed by about 0.1mm. Repeat procedures 3) - 6) until the
conditions of procedure 5) are satisfied. In case a satisfactory
result cannot be obtained by repeating the above procedures,
perform the following procedure.
printed. When the adjustment value is increased, the adjust-
ment pattern is shifted to the front frame side. When it is
decreased, the adjustment pattern is shifted to the rear frame
side. When the set value is changed by 1, the shift distance is
changed by about 0.1mm. Repeat procedures 3) - 6) until the
conditions of procedure 5) are satisfied. In case a satisfactory
result cannot be obtained by repeating the above procedures,
perform the following procedure.
7)
Loosen the paper feed tray off-center adjustment screws (2
pcs.) at the center section of the lift plate of the paper feed tray,
and change the gear unit position in the front/rear frame direc-
tion. Repeat the adjustment procedures from 4).
pcs.) at the center section of the lift plate of the paper feed tray,
and change the gear unit position in the front/rear frame direc-
tion. Repeat the adjustment procedures from 4).
ADJ 4
Scan image distortion
adjustment (OC mode)
adjustment (OC mode)
This adjustment is needed in the following situations:
* When the scanner (reading) section is disassembled.
* When the copy image is distorted.
4-A
Scanner (reading) unit parallelism
adjustment
adjustment
Before execution of this adjustment, remove the document table
glass.
glass.
1)
Remove the LED lamp unit, and then loosen the screws which
are fixing the scanner unit A and the drive wire. Release the
scanner unit A from the drive wire.
are fixing the scanner unit A and the drive wire. Release the
scanner unit A from the drive wire.
2)
Turn the scanner drive pulley manually and shift the scanner
unit B to bring it into contact with the stopper.
unit B to bring it into contact with the stopper.
When the scanner unit B is in contact with the two stoppers on
the front and the rear frames simultaneously, the parallelism is
proper.
the front and the rear frames simultaneously, the parallelism is
proper.
If this requirement is not met, do the following steps.
RV
2.0mm
2.0mm
2.0mm
FV
2.0mm
2.0mm
2.0mm
MX-M565N ADJUSTMENTS AND SETTINGS 4 – 12
3)
Loosen the fixing screw of the pulley angle on the front frame
side of the scanner unit B.
side of the scanner unit B.
4)
Adjust the position of the pulley angle on the front frame side
of the scanner unit B so that it is in contact with two stoppers
on the front and the rear frames simultaneously.
of the scanner unit B so that it is in contact with two stoppers
on the front and the rear frames simultaneously.
5)
Fix the pulley angle on the front frame side of the scanner unit
B. If a satisfactory result is not obtained from the above proce-
dures, perform the following procedures. Loosen the fixing
screw of the scanner unit drive pulley which is not in contact.
B. If a satisfactory result is not obtained from the above proce-
dures, perform the following procedures. Loosen the fixing
screw of the scanner unit drive pulley which is not in contact.
Without moving the scanner unit drive shaft, turn the scanner
unit drive pulley manually and adjust so that the scanner unit B
is in contact with both stoppers on the front frame and the rear
frame simultaneously. (Change the relative position of the
scanner unit drive pulley and the drive shaft.) Fix the scanner
unit drive pulley fixing screw.
unit drive pulley manually and adjust so that the scanner unit B
is in contact with both stoppers on the front frame and the rear
frame simultaneously. (Change the relative position of the
scanner unit drive pulley and the drive shaft.) Fix the scanner
unit drive pulley fixing screw.
6)
With the scanner unit B in contact with both stoppers, fit the
edge of the scanner unit A with the right edge of the frame, and
fix the scanner unit A with the fixing screw.
edge of the scanner unit A with the right edge of the frame, and
fix the scanner unit A with the fixing screw.
4-B
Scan image sub scanning direction
distortion adjustment
distortion adjustment
1)
Make a test chart on A3 (11" x 17") paper as shown below.
(Draw a rectangular with four right angles.)
(Draw a rectangular with four right angles.)
2)
Set the test chart prepared in the procedure 1) on the docu-
ment table. (Shift the test chart edge 30mm from the reference
position as shown below.) With the document cover open,
make a copy on A3 (11" x 17") paper.
ment table. (Shift the test chart edge 30mm from the reference
position as shown below.) With the document cover open,
make a copy on A3 (11" x 17") paper.
3)
Check for distortion in the sub scanning direction.
If La = Lb, there is no distortion.
If there is any distortion in the sub scanning direction, perform
the following procedures.
the following procedures.
4)
Loosen either one of the fixing screws of the scanner unit drive
pulley. (Either one on the front frame or on the rear frame will
do.)
pulley. (Either one on the front frame or on the rear frame will
do.)
L
L
L = 10mm
L
L
La
Lb
MX-M565N ADJUSTMENTS AND SETTINGS 4 – 13
5)
Without moving the scanner unit drive shaft, manually turn the
scanner unit drive pulley to change the parallelism of the scan-
ner unit A and B. (Change the relative position of the scanner
unit drive pulley and the drive shaft.)
scanner unit drive pulley to change the parallelism of the scan-
ner unit A and B. (Change the relative position of the scanner
unit drive pulley and the drive shaft.)
6)
Tighten the scanner unit drive pulley fixing screw.
Repeat the procedures 2) - 6) until the condition of the procedure 3)
is satisfied. If the distortion in the sub scanning direction cannot be
deleted with the above procedures, perform ADJ 4D Scan image
distortion adjustment (Whole scanner unit).
is satisfied. If the distortion in the sub scanning direction cannot be
deleted with the above procedures, perform ADJ 4D Scan image
distortion adjustment (Whole scanner unit).
4-C
Scan image main scanning direction
distortion adjustment
distortion adjustment
1)
Make a test chart on A3 (11" x 17") paper as shown below.
(Draw a rectangular with four right angles.)
(Draw a rectangular with four right angles.)
2)
Set the test chart prepared in the procedure 1) on the docu-
ment table, and make a copy on A3 (11" x 17") paper.
ment table, and make a copy on A3 (11" x 17") paper.
3)
Check for distortion in the main scanning direction.
If the four angles of the rectangle of the copy image are right
angles, it is judged that there is no distortion. (The work is
completed.)
angles, it is judged that there is no distortion. (The work is
completed.)
If there is any distortion in the main scanning direction, perform
the following procedure.
the following procedure.
4)
Check the difference (distortion balance) between left-hand
and right-hand side images distortions.
and right-hand side images distortions.
If Lc = Ld, the distortion on the left is equal to that on the right.
(The distortions are balanced.) If the above condition is satis-
fied, go to the procedure 6). If not, perform the following proce-
dures.
(The distortions are balanced.) If the above condition is satis-
fied, go to the procedure 6). If not, perform the following proce-
dures.
5)
Change the height balance of the scanner rail on the front
frame side.
frame side.
Remove the lower cabinet of the operation panel. Loosen the
scanner rail fixing screw to change the balance between the
right and the left heights of the scanner rail. Repeat the proce-
dures 2) - 5) until the difference between the image distortions
(distortion balance) is deleted.
scanner rail fixing screw to change the balance between the
right and the left heights of the scanner rail. Repeat the proce-
dures 2) - 5) until the difference between the image distortions
(distortion balance) is deleted.
6)
Without changing the balance of the scanner rail on the front
frame side, change the overall height.
frame side, change the overall height.
7)
Set the test chart prepared in the procedure 1) on the docu-
ment table, and make a copy on A3 (11" x 17") paper. Check
that the distortion in the main scanning direction is within the
specified range. Repeat the procedures 6) and 7) until the dis-
tortion in the main scanning direction is in the specified range.
ment table, and make a copy on A3 (11" x 17") paper. Check
that the distortion in the main scanning direction is within the
specified range. Repeat the procedures 6) and 7) until the dis-
tortion in the main scanning direction is in the specified range.
If the distortion in the sub scanning direction cannot be deleted
with the above procedures, perform ADJ 4D Scan image dis-
tortion adjustment (whole scanner unit).
with the above procedures, perform ADJ 4D Scan image dis-
tortion adjustment (whole scanner unit).
4-D
Scan image distortion adjustment
(Whole scanner unit)
(Whole scanner unit)
This adjustment is executed when scan image distortion cannot be
adjusted with ADJ 4A, ADJ 4B, and ADJ 4C related to the scan
image distortion adjustment.
adjusted with ADJ 4A, ADJ 4B, and ADJ 4C related to the scan
image distortion adjustment.
Change the upper and lower positions of the scanner unit distortion
adjustment plate on the right edge of the scanner unit so that the
scan image distortion is minimized. By adjusting the distortion of
the whole scanner unit, the scan image distortion is adjusted.
adjustment plate on the right edge of the scanner unit so that the
scan image distortion is minimized. By adjusting the distortion of
the whole scanner unit, the scan image distortion is adjusted.
1)
Loosen the fixing screw (A).
2)
Adjust the scanner unit distortion adjustment plate.
L
L
L = 10mm
L
L
Lc
Ld
Copy A
Lc
Ld
Copy B
There is no difference
between the distortion on
the right and that on the left.
between the distortion on
the right and that on the left.
Lc Ld
Lc Ld
There is some difference
between the distortion on
the right and that on the left.
between the distortion on
the right and that on the left.
A
A
A
A
MX-M565N ADJUSTMENTS AND SETTINGS 4 – 14
ADJ 5
Scanner image skew
adjustment (DSPF model)
adjustment (DSPF model)
5-A
DSPF parallelism adjustment
This adjustment must be performed in the following cases:
* The DSPF section has been disassembled.
* The DSPF unit has been replaced.
* When a DSPF JAM is generated.
* When a skew is generated in the document feed operation.
* When there is a distortion (skew) in the scan image in the DSPF
unit.
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.
Cut copy paper in the longitudinal direction.
2)
Visually check to insure that the clearance A is 1mm or less
and the clearance B is 0mm (in contact). If the above require-
ment is not met, do step 3).
and the clearance B is 0mm (in contact). If the above require-
ment 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.
5-B
DSPF/RSPF skew adjustment
(Front surface mode)
(Front surface mode)
This adjustment must be performed in the following cases:
* The DSPF/RSPF section has been disassembled.
* When replacing the DSPF unit.
* The DSPF/RSPF unit generates skewed scanned images.
1)
Make 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
0mm
1mm
R
L
A
B
Paper pass direction
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