Sharp MX-RP20 (serv.man2) Service Manual ▷ View online
– 1
1. Maintenance list
Main unit
X: Check (Clean, replace, or adjust according to necessity.) O: Clean
X: Check (Clean, replace, or adjust according to necessity.) O: Clean
: Replace : Adjust
✩: Lubricate
No.
Part name
When
calling 100K 150K 200K 300K 400K 450K 500K 600K 700K 800K
Remark
1
Pickup roller
O
O
O
O
O
O
O
O
O
O
O
Replacement reference:
Replace according to the RSPF paper
feed counter value.
RSPF section roller: 100K or 1 years of
use
When replacing the paper feed roller,
apply grease to the paper feed shaft.
(UKOG-0013QSZZ)
Replace according to the RSPF paper
feed counter value.
RSPF section roller: 100K or 1 years of
use
When replacing the paper feed roller,
apply grease to the paper feed shaft.
(UKOG-0013QSZZ)
2
Paper feed roller
O
O
O
O
O
O
O
O
O
O
O
3
Separation roller
O
O
O
O
O
O
O
O
O
O
O
4
Torque limiter
SPF
SPF
X
X
X
X
X
X
X
X
X
X
X
Replacement reference:
Replace according to the RSPF paper
feed counter value.
RSPF torque limiter: 400K or 2 years of
use
Replace according to the RSPF paper
feed counter value.
RSPF torque limiter: 400K or 2 years of
use
5
Take-up
torque limiter
torque limiter
X
X
X
X
X
X
X
X
X
X
X
6
Discharge brush
X
X
X
X
X
X
X
X
X
X
X
7
Registration
roller
roller
O
O
O
O
O
O
O
O
O
O
O
8
Transportation
rollers 2
rollers 2
O
O
O
O
O
O
O
O
O
O
O
9
Transportation
roller 3
roller 3
O
O
O
O
O
O
O
O
O
O
O
10
Exit roller
O
O
O
O
O
O
O
O
O
O
O
11
Sensors
X
X
X
X
X
X
X
X
X
X
X
12
Reading plate
O
O
O
O
O
O
O
O
O
O
O
13
Gears
X
X
X
X
X
X
X
X
X
X
X
14
Belts
X
X
X
X
X
X
X
X
X
X
X
15
OC mat
O
O
O
O
O
O
O
O
O
O
O
11
11
1
6
3
9
10
15
7
8
12
2
4
5
14
MX-RP11 ADJUSTMENTS 4 – 1
MX-RP11
Service Manual
[4] ADJUSTMENTS
1. Image focus adjustment (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.
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.
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2.
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)
MX-RP11 ADJUSTMENTS 4 – 2
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.
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.
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.
0.8%, 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.
2. Main scanning direction image
magnification ratio adjustment (RSPF
mode)
This adjustment must be performed in the following cases:
* When the scan control PWB is replaced.
* When the EEPROM on the scan control PWB is replaced.
* When U2 trouble occurs.
* When the copy magnification ratio is not matched.
* When the DSPF/RSPF is disassembled.
a. Adjustment procedures
1)
Place the duplex adjustment chart shown below on the docu-
ment tray of the DSPF/RSPF. The adjustment chart is pre-
pared by the following procedures. Use A4 (11" x 8.5") paper,
and put marks on both sides and both surfaces of the paper at
10mm from each edge.
ment tray of the DSPF/RSPF. The adjustment chart is pre-
pared by the following procedures. Use A4 (11" x 8.5") paper,
and put marks on both sides and both surfaces of the paper at
10mm from each edge.
2)
Make a duplex copy at the normal ratio on A4 paper.
3)
Measure the images on the copy paper and the original
images.
images.
4)
Obtain the image magnification ratio according to the following
formula:
formula:
Image magnification ratio = Original size / Original size x 100
(%)
(%)
Image magnification ratio = 99 / 100 x 100 = 99 (%)
If the image magnification ratio is within the specified range
(100 +/- 0.8%), there is no need to perform the adjustment.
(100 +/- 0.8%), there is no need to perform the adjustment.
If it is not within the specified range, perform the following pro-
cedures.
cedures.
A
B
A4 size
(Both the front surface
and the back surface)
10mm
10mm
Paper pass direction
original
10
50
100
150
200
250
copy
10
50
100
150
200
250
MX-RP11 ADJUSTMENTS 4 – 3
5)
Enter the SIM 48-1 mode.
* Items A, C, E: When the set value is increased by 1, the
magnification ratio is increased by 0.02%.
* Items B, D: When the set value is increased by 1, the magni-
fication ratio is increased by 0.1%.
* It affects scanning (PC scanning, etc.) as well as copying.
6)
Select an adjustment item of SPF (MAIN)/SPFB (MAIN) with
the scroll key.
the scroll key.
7)
Enter an adjustment value with 10-key, and press [OK] key.
When the adjustment value is increased, the image magnifica-
tion ratio is increased. When the adjustment value is changed
by 1, the image magnification ratio is changed by 0.02%.
tion ratio is increased. When the adjustment value is changed
by 1, the image magnification ratio is changed by 0.02%.
Repeat the procedures of 1) - 7) until a satisfactory result is
obtained.
obtained.
NOTE: When [CLOSE] key is pressed in this simulation mode, the
machine goes into the normal operation mode. Under this
state, copy check can be normally performed. When the
system key is pressed, the machine returns to the simula-
tion mode.
state, copy check can be normally performed. When the
system key is pressed, the machine returns to the simula-
tion mode.
3. Sub scanning direction image
magnification ratio adjustment (RSPF
mode)
This adjustment must be performed in the following cases:
* When the scan control PWB is replaced.
* When the EEPROM on the scan control PWB is replaced.
* When U2 trouble occurs.
* When the copy magnification ratio is not matched.
* When the RSPF is disassembled.
1)
Place the duplex adjustment chart shown below on the docu-
ment tray of the RSPF. The adjustment chart is prepared by
the following procedures. Use A4 (11" x 8.5") paper, and put
marks on both sides and both surfaces of the paper at 10mm
from each edge.
ment tray of the RSPF. The adjustment chart is prepared by
the following procedures. Use A4 (11" x 8.5") paper, and put
marks on both sides and both surfaces of the paper at 10mm
from each edge.
2)
Make a duplex copy at the normal ratio on A4 paper.
3)
Measure the images on the copy paper and the original
images.
images.
4)
Obtain the image magnification ratio according to the following
formula:
formula:
Image magnification ratio = Original size / Original size x 100
(%)
(%)
Image magnification ratio = 99 / 100 x 100 = 99 (%)
If the image magnification ratio is within the specified range
(100 +/- 0.8%), there is no need to perform the adjustment.
(100 +/- 0.8%), there is no need to perform the adjustment.
If it is not within the specified range, perform the following pro-
cedures.
cedures.
Item
Display
Content
Setting
range
Default
value
A
CCD(MAIN)
SCAN main scanning
magnification ratio
adjustment (CCD)
magnification ratio
adjustment (CCD)
1 - 99
50
B
CCD(SUB)
SCAN sub scanning
magnification ratio
adjustment (CCD)
magnification ratio
adjustment (CCD)
1 - 99
50
C
SPF(MAIN)
DSPF document front
surface magnification ratio
adjustment (Main scan)
surface magnification ratio
adjustment (Main scan)
1 - 99
50
D
SPF(SUB)
DSPF document front
surface magnification ratio
adjustment (Sub scan)
surface magnification ratio
adjustment (Sub scan)
1 - 99
50
E
SPFB(MAIN)
DSPF document back
surface magnification ratio
adjustment (Main scan)
surface magnification ratio
adjustment (Main scan)
1 - 99
50
F
SPFB(SUB)
DSPF document back
surface magnification ratio
adjustment (Sub scan)
surface magnification ratio
adjustment (Sub scan)
1 - 99
50
SPF (MAIN)
Main scanning direction image magnification ratio
(Front surface)
(Front surface)
SPFB (MAIN)
Main scanning direction image magnification ratio
(Back surface)
(Back surface)
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2.
A4 size
10mm
10mm
Paper pass direction
original
copy
10
50
100
150
200
10
50
100
150
200
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