Sharp AR-M316 (serv.man10) Service Manual ▷ View online
AR-M256/M257/M258/M316/M317/M318/5625/5631 ADJUSTMENTS, SETTING 7 - 1
[7] ADJUSTMENTS, SETTING
1. List of adjustment items
2. Copier adjustment
A. Process section
(1) Developing doctor gap adjustment
1) Loosen the developing doctor fixing screw A.
2) Insert a thickness gauge of 1.5mm to the three positions at 20mm
and 150mm from the both ends of the developing doctor as shown.
3) Tighten the developing doctor fixing screw.
4) Check the clearance of the developing doctor. If it is within the
specified range, then fix the doctor fixing screw with screw lock.
∗
When inserting a thickness gauge, be careful not to scratch the
developing doctor and the MG roller.
developing doctor and the MG roller.
<Adjustment specification>
(2) MG roller main pole position adjustment
1) Put the developing unit on a flat surface.
2) Tie a needle or pin on a string.
3) Hold the string and bring the needle close to the MG roller horizon-
tally. (Do not use paper clip, which is too heavy to make a correct
adjustment.) (Put the developing unit horizontally for this adjust-
ment.)
adjustment.) (Put the developing unit horizontally for this adjust-
ment.)
4) Do not bring the needle into contact with the MG roller, but bring it
to a position 2 or 3mm apart from the MG roller. Mark the point on
the MG roller which is on the extension line from the needle tip.
the MG roller which is on the extension line from the needle tip.
5) Measure the distance from the marking position to the top of the
doctor plate of the developing unit to insure that it is 18mm.
If the distance is not within the specified range, loosen the fixing
screw A of the main pole adjustment plate, and move the adjust-
ment plate in the arrow direction to adjust.
screw A of the main pole adjustment plate, and move the adjust-
ment plate in the arrow direction to adjust.
Section
Adjustment item
Adjustment procedure/SIM No.
A
Process section
(1)
Developing doctor gap adjustment
Developing doctor gap adjustment
(2)
MG roller main pole position adjustment
MG roller main pole position adjustment
(3)
Developing bias voltage adjustment
SIM8-1
(4)
Grid bias voltage adjustment (High mode)
SIM8-2
(5)
Grid bias voltage adjustment (Low mode)
SIM8-3
B
Mechanism section
(1)
Print start position adjustment
SIM50-5
(2)
RSPF image lead edge position adjustment
SIM50-6
(3)
Rear edge void adjustment
SIM50-1
(4)
Paper off center adjustment
SIM50-10
(5)
Left edge void area adjustment
SIM50-1-8
(6)
Main scanning direction (FR direction) distortion
balance adjustment
balance adjustment
No. 2/3 mirror base unit installing position
adjustment
Copy lamp unit installing position adjustment
adjustment
Copy lamp unit installing position adjustment
(7)
Sub scanning direction (scanning direction)
distortion adjustment
distortion adjustment
Winding pulley position adjustment
(8)
Main scanning direction (FR direction) distortion
balance adjustment
balance adjustment
Rail height adjustment
(9)
Main scanning direction (FR direction)
magnification ratio adjustment
magnification ratio adjustment
SIM48-1-1
(10)
Sub scanning direction (scanning direction)
magnification ratio adjustment
magnification ratio adjustment
a
OC mode in copying (SIM 48-1-2)
b
RSPF sub scanning direction magnification ratio
(SIM48-1-3, 48-1-4)
(SIM48-1-3, 48-1-4)
(11)
Off center adjustment (RSPF mode)
SIM50-12
(12)
OC (RSPF) open/close detection position
adjustment
adjustment
SIM41-3
(13)
Original sensor adjustment
SIM41-2, 41-4 (41-1)
(14)
RSPF white correction pixel position adjustment
(required in an RSPF model when replacing the
lens unit)
(required in an RSPF model when replacing the
lens unit)
SIM63-7
(15)
RSPF scan position auto adjustment
SIM53-8
C
Image density
(exposure) adjustment
(exposure) adjustment
(1)
Copy mode
SIM46-2
Developing doctor gap
F/R both ends (20mm from the both ends):1.5
+0.1mm
-0.15mm
-0.15mm
C (Center)(150mm from the both ends):
1.55
+0.15mm
-0.2mm
-0.2mm
20mm
10mm
150mm
10mm
20mm
F
C
R
DG:1.5
+0.1
- 0.15
DG:1.5
+0.1
- 0.15
DG:1.55
+0.15
- 0.2
A
A
A
A
AR-M256/M257/M258/M316/M317/M318/5625/5631 ADJUSTMENTS, SETTING 7 - 2
(3) Developing bias voltage adjustment (SIM 8-1)
1) Execute SIM 8-1.
2) Touch the exposure mode to be changed.
The current set value is displayed.
3) Enter the set value with the 10-key.
4) Press the [START] key.
Output is made with the entered value, and the display returns to
the original state.
the original state.
<Adjustment specification>
(4) Grid bias voltage adjustment
(High mode) (SIM 8-2)
1) Execute SIM 8-2.
2) Touch the exposure mode to be changed.
The current set value is displayed.
3) Enter the set value with the 10-key.
4) Press the [START] key.
Output is made with the entered value for 30sec, and the display
returns to the original state.
returns to the original state.
<Adjustment specification>
Min. unit: –25V increment
(5) Grid bias voltage adjustment (Low mode) (SIM 8-3)
1) Execute SIM 8-3.
2) Touch the exposure mode to be changed.
The current set value is highlighted.
3) Enter the set value with the 10-key.
4) Press the [START] key.
Output is made with the entered value for 30sec, and the display
returns to the original state.
returns to the original state.
<Adjustment specification>
Min. unit: -25V increment
Item
Content
Setting
range
Default
1
AE (145)
AE (145mm/s)
200-
650
450 (–450V)
2
TEXT (145)
Character
(145mm/s)
(145mm/s)
500 (–500V)
3
TEXT/PHOTO
(145)
(145)
Character/Photo
(145mm/s)
(145mm/s)
500 (–500V)
4
PHOTO (145)
Photo (145mm/s)
500 (–500V)
5
TONER SAVE
(145)
(145)
Toner save
(145mm/s)
(145mm/s)
400 (–400V)
6
AE (122)
AE (122mm/s)
400 (–400V)
7
TEXT (122)
Character
(122mm/s)
(122mm/s)
450 (–450V)
8
TEXT/PHOTO
(122)
(122)
Character/Photo
(122mm/s)
(122mm/s)
450 (–450V)
9
PHOTO (122)
Photo (122mm/s)
450 (–450V)
10
TONER SAVE
(122)
(122)
Toner save
(122mm/s)
(122mm/s)
375 (–375V)
Item
Content
Setting
range
Default
1
AE (145)
AE (145mm/s)
1-12
4 (–555V)
2
TEXT (145)
Character
(145mm/s)
(145mm/s)
6 (–605V)
3
TEXT/PHOTO
(145)
(145)
Character/Photo
(145mm/s)
(145mm/s)
6 (–605V)
SIMULATION 8-1
426
1/1
DV BIAS COPY SETTING. INPUT VALUE 200-550, AND PRESS
START.
1: AE
426
2: TEXT
450
3: TEXT/PHOTO
450
4: PHOTO
450
5: SUPER/PHOTO
400
6: TONER SAVE
376
SIMULATION 8-1
SIMULATION 8-2
4
PHOTO (145)
Photo (145mm/s)
1-12
6 (–605V)
5
TONER SAVE
(145)
(145)
Toner save
(145mm/s)
(145mm/s)
2 (–505V)
6
AE (122)
AE (122mm/s)
3 (–530V)
7
TEXT (122)
Character
(122mm/s)
(122mm/s)
5 (–580V)
8
TEXT/PHOTO
(122)
(122)
Character/Photo
(122mm/s)
(122mm/s)
5 (–580V)
9
PHOTO (122)
Photo (122mm/s)
5 (–580V)
10
TONER SAVE
(122)
(122)
Toner save
(122mm/s)
(122mm/s)
2 (–505V)
Item
Content
Setting
range
Default
1
AE (145)
AE (145mm/s)
1-12
4 (–455V)
2
TEXT (145)
Character
(145mm/s)
(145mm/s)
6 (–505V)
3
TEXT/PHOTO
(145)
(145)
Character/Photo
(145mm/s)
(145mm/s)
6 (–505V)
4
PHOTO (145)
Photo (145mm/s)
6 (–505V)
5
TONER SAVE
(145)
(145)
Toner save
(145mm/s)
(145mm/s)
2 (–405V)
6
AE (122)
AE (122mm/s)
3 (–405V)
7
TEXT (122)
Character
(122mm/s)
(122mm/s)
5 (–455V)
8
TEXT/PHOTO
(122)
(122)
Character/Photo
(122mm/s)
(122mm/s)
5 (–455V)
9
PHOTO (122)
Photo (122mm/s)
5 (–455V)
10
TONER SAVE
(122)
(122)
Toner save
(122mm/s)
(122mm/s)
2 (–380V)
Item
Content
Setting
range
Default
SIMULATION 8-3
AR-M256/M257/M258/M316/M317/M318/5625/5631 ADJUSTMENTS, SETTING 7 - 3
B. Mechanism section
(1) Print start position adjustment
1) Execute SIM 50-5.
2) Touch the item to be adjusted.
The item and the currently set value are highlighted.
3) Press the [P] key.
The display is shifted to the copy menu.
4) Select the paper feed tray, the print density, and the duplex mode.
Enter the adjustment value with the 10-key.
5) Press the [START] key.
Copying is started.
6) Measure the distance H between the paper lead edge and the
image print start position. Set the image print start position set
value again.
value again.
• 1 step of the set value corresponds to about 0.127mm shift.
• Calculate the set value from the formula below.
99 – H/0.127 (mm) = Image print start position set value
<H: Print start position measurement value (mm)>
<H: Print start position measurement value (mm)>
∗
Fit the print edge with the paper edge, and perform the lead
edge adjustment.
edge adjustment.
Example:99 – 5/0.127 = 99 – 39.4 = about 59
Note: FIf the set value is not obtained from the above formula, per-
Note: FIf the set value is not obtained from the above formula, per-
form the fine adjustment.
7) Execute SIM 50-1-2 to adjust the main cassette lead edge void.
• 1 step of the set value corresponds to about 0.127mm shift.
• Calculate the set value from the formula below.
B/0.127 (mm) = Lead edge void adjustment value
<B: Lead edge void (mm)>
<B: Lead edge void (mm)>
Example: When setting the lead edge void to 2.5mm:
2.5 /0.127 = about 20
<Adjustment specification>
[H: Print start position measurement value (mm),
B: Lead edge void (mm)]
(2) RSPF image lead edge position adjustment
1) Set a scale on the OC table as shown below.
Note: Since the printed copy is used as a test chart, put the scale in
paralleled with the edge lines.
2) Make a copy, then use the copy output as an original to make an
RSPF copy again.
3) Check the copy output. If necessary, perform the following adjust-
ment procedures.
4) Execute SIM 50-6.
5) Set the RSPF lead edge position set value so that the same image
is obtained as that obtained in the previous OC image lead edge
position adjustment.
position adjustment.
<Adjustment specification>
(3) Rear edge void adjustment
1) Set a scale as shown in the figure below.
2) Set the document size to A4 (8.5" x 11"), and make a copy at
100%.
3) If an adjustment is required, follow the procedures below.
4) Execute SIM 50-1 and set the density mode to DEN-B. The cur-
rently set adjustment value is displayed.
5) Enter the set value and press the start key.
Item
Content
Setting range
Default
1
TRAY1
1st cassette
0-99
53
2
OPTION
Option cassette
1-99
3
MANUAL
Manual feed
4
DUPLEX
Back print
SIMULATION 50-5
53
1/1
LEAD EDGE ADJUSTMENT(PRINT). INPUT VALUE 0-99, AND PRESS
START.
1: TRAY1
53
2: OPTION
53
3: MANUAL
53
4: DUPLEX
53
5
10
0mm
0mm
5
10
2.5mm
2.5mm
Adjustment
mode
SIM
Set value
Spec value
Setting
range
Main cassette
lead edge void
lead edge void
50-1
-2
B/0.127
Lead edge void:
1 – 4mm
Image loss: 3mm
or less
1 – 4mm
Image loss: 3mm
or less
1 – 99
Print start
position
position
50-5
99 – H/0.127
Adjustment
mode
SIM
Set value
Spec value
Setting
range
RSPF
image lead
edge
position
image lead
edge
position
50-6
1 step:
0.127mm
shift
0.127mm
shift
Lead edge void:
1 – 4mm
Image loss: 3mm or less
1 – 4mm
Image loss: 3mm or less
1 – 99
A4 (8.5" x 11")
Paper rear edge
Void amount (Standard value: 4mm or less)
Scale image
Paper rear edge
AR-M256/M257/M258/M316/M317/M318/5625/5631 ADJUSTMENTS, SETTING 7 - 4
The correction value is stored and a copy is made.
<Adjustment specification>
(4) Paper off center adjustment
1) Set a test chart (UKOG-0089CSZZ) on the document table.
2) Select a paper feed port and make a copy.
3) Execute SIM 50-10.
4) Touch the item to be adjusted.
The item and the currently set value are highlighted.
5) Press the [START] key.
The display is shifted to the copy menu.
6) Select the paper feed tray and the print density.
Enter the adjustment value with the 10-key.
7) Press the [START] key.
Copying is started.
<Adjustment specification>
(5) Left edge void area adjustment
Note: Before performing this adjustment, be sure to check that the
paper off center adjustment (SIM 50-10) is completed.
1) Execute SIM 50-1.
2) Note down the adjustment value of SIM 50-5 (Items 1, 2, 3, 4), and
change the value to 99.
3) Set SIM 50-1 (Items 2, 3, 4, 5) to 1. (By setting to 1, there is no
void.)
4) Place a chart with a clear lead edge (or a ruler) on the OC docu-
ment table.
5) Use SIM 50-1 (Item 1) to execute test print. Check the print out and
adjust so that the lead edge image is printed. (1 – 99: About
0.127mm/Step)
0.127mm/Step)
6) Reset the adjustment values of SIM 50-5 (Items 1, 2, 3, 4) to the
original values, and execute test print. Check the print out and
adjust so that the lead edge image is printed on the lead edge of
paper. (1 – 99: About 0.127mm/Step).
adjust so that the lead edge image is printed on the lead edge of
paper. (1 – 99: About 0.127mm/Step).
7) Adjust SIM 50-1 (Items 2, 3, 4, 5) so that the lead edge void on the
print out is the specified value. (1 – 99: About 0.127mm/Step)
8) Similar to procedure 7, adjust SIM 50-1 (Item 6, 7) so that the rear
edge void is the specified value. (1 – 99: About 0.127mm/Step)
9) Similar to procedure 7, adjust SIM 50-1 (Item 8, 9) so that the left
edge void is the specified value. (1 – 99: About 0.127mm/Step)
10) Make an enlargement copy (400%), and check that there is no
shade of the cabinet printed at the lead edge.
11) If there is a shade printed at the lead edge in procedure 9, adjust
SIM 50-1 (Item 10). (1 – 5: About 0.677mm)
* If there is no problem, set to 3.
* If there is no problem, set to 3.
Adjustment
mode
SIM
Set value
Spec
value
Setting
range
Rear edge
void
void
50-1-6
1 step: 0.127mm
shift
shift
4mm or
less
less
1 – 99
Item
Content
Setting range
Default
1
BYPASS
Manual paper feed
1-99
50
2
TRAY1
1st cassette
3
TRAY2
2nd cassette
4
TRAY3
3rd cassette
5
TRAY4
4th cassette
6
DUPLEX
Back print
Adjustment
mode
SIM
Set value
Spec value
Setting
range
Paper off
center
center
50-10
-2
Add 1: 0.127mm
shift to R side.
shift to R side.
Reduce 1:
0.127mm shift to L
side.
0.127mm shift to L
side.
Single:
Center
±2.0mm
Center
±2.0mm
1 – 99
Second
print surface
off-center
print surface
off-center
50-10
-6
Duplex:
Center
±2.5mm
Center
±2.5mm
SIMULATION 50-10
50
1/1
OK
PRINT OFF-CENTER ADJUSTMENT. INPUT VALUE 1-99, AND
PRESS START.
1: BYPASS
50
2: TRAY1
50
3: TRAY2
50
4: TRAY3
50
5: TRAY4
50
6: DUPLEX
50
Item
Content
Setting
range
Default
1
RRC-A
Original scan start position
adjustment
Lead edge position
adjustment value (OC)
adjustment
Lead edge position
adjustment value (OC)
1-99
43
2
DEN-A
Lead edge cancel
adjustment (Main cassette)
adjustment (Main cassette)
1-99
18
3
DEN-A-MANUAL Lead edge cancel
adjustment
(Manual feed cassette)
(Manual feed cassette)
1-99
18
4
DEN-A-OPTION
Lead edge cancel
adjustment (Option cassette)
adjustment (Option cassette)
1-99
18
5
DEN-A-DUPLEX Lead edge cancel
adjustment
(back of the machine)
(back of the machine)
1-99
18
6
DEN-B
Rear edge void adjustment
1-99
30
7
DEN-B-DUP
Rear edge void adjustment
(Duplex)
(Duplex)
1-99
50
8
SIDE VOID
Left edge void adjustment
(First print surface)
(First print surface)
1-99
18
9
SIDE VOID-DUP Left edge void adjustment
(Duplex)
1-99
18
10 LOSS(OC)
Image loss amount
adjustment (Lead edge
image loss set value) (OC)
adjustment (Lead edge
image loss set value) (OC)
1-5
3
SIMULATION 50-1
43
1/1
OK
LEAD EDGE ADJUSTMENT. INPUT VALUE 1-99, AND PRESS START.
1: RRC-A
43
2: DEN-A
18
3: DEN-A -MANUAL
18
4: DEN-A -OPTION
18
5: DEN-A -DUPLEX
18
6: DEN-B
3
7: DEN-B-DUP
50
8: SIDE VOID
18
9: SIDE VOID-DUP
18
10: LOSS(OC)
3
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