Read Sharp MX-M364N / MX-565N (serv.man4) Service Manual online
MX-M565N ADJUSTMENTS AND SETTINGS 4 – 28
If the above condition is not satisfied, perform the following
procedure.
procedure.
2)
Enter the adjustment value of TRAIL EDGE (SIDE1/SIDE2)
with 10-key, and press [OK] key.
with 10-key, and press [OK] key.
TRAIL EDGE (SIDE 1):
Rear edge image loss adjustment value (Front surface)
TRAIL EDGE (SIDE 2):
Rear edge image loss adjustment value (Back surface)
(When the adjustment value is increased, the rear edge image
loss is increased.)
loss is increased.)
(Change for change in the set value: 0.1mm/step)
Perform the procedures of 1) - 2) until a satisfactory result is
obtained.
obtained.
(Front/rear frame direction image loss adjustment)
1)
Make a duplex copy in 100% in the DSPF/RSPF mode. Check
to confirm that the image losses on the front frame side and
the rear frame side are 2.0 2.0mm on the front surface and the
back surface.
to confirm that the image losses on the front frame side and
the rear frame side are 2.0 2.0mm on the front surface and the
back surface.
If the above condition is not satisfied, perform the following
procedure.
procedure.
2)
Enter the adjustment value of FRONT/REAR (SIDE 1) /
FRONT/REAR (SIDE 2), and press [OK] key.
FRONT/REAR (SIDE 2), and press [OK] key.
FRONT/REAR (SIDE 1):
Front/Rear image loss adjustment value (Front surface)
Front/Rear image loss adjustment value (Front surface)
FRONT/REAR (SIDE 2):
Front/Rear image loss adjustment value (Back surface)
Front/Rear image loss adjustment value (Back surface)
(When the adjustment value is increased, the front/rear image
loss is increased.)
loss is increased.)
(Change for change in the adjustment value: 0.1mm/step)
Perform the procedures of 1) - 2) until a satisfactory result is
obtained.
obtained.
ADJ 11
Gray balance/density
adjustment
adjustment
(1) Note before execution of the gray balance/density
adjustment
* Requisite conditions before execution of the gray balance/den-
sity adjustment
Before execution of the gray balance/density adjustment, check
to insure that the adjustments which affect the gray balance/den-
sity have been completed properly.
to insure that the adjustments which affect the gray balance/den-
sity have been completed properly.
(Though the following items affect the gray balance/density,
there is no need to adjust them frequently. When, however, a
trouble occurs, they must be checked and adjusted.)
there is no need to adjust them frequently. When, however, a
trouble occurs, they must be checked and adjusted.)
1)
The following items must be adjusted properly.
Note for the gray balance/density check and adjustments
When setting the adjustment pattern on the document table in the
automatic gray balance adjustment procedures, place 5 sheets of
white paper on the adjustment pattern in order to prevent back
copying and adverse effects of paper wrinkles as far as possible.
automatic gray balance adjustment procedures, place 5 sheets of
white paper on the adjustment pattern in order to prevent back
copying and adverse effects of paper wrinkles as far as possible.
(2) Relationship between the servicing job contents and the
gray balance/density check and adjustment
Note that the jobs before and after execution of the gray balance/
density check and adjustment depend on the machine status and
the servicing conditions.
density check and adjustment depend on the machine status and
the servicing conditions.
Follow the flowchart of the gray balance/density adjustment proce-
dures depending on the actual conditions.
dures depending on the actual conditions.
There are following four, major cases.
1)
When installing (When a printer option is installed)
2)
When a periodic maintenance is performed.
3)
When a repair, an inspection, or a maintenance is performed.
(When a consumable part is replaced.)
(When a consumable part is replaced.)
4)
When an installation, a repair, or inspection is performed.
(Without replacement of a consumable part)
(Without replacement of a consumable part)
(3) Copy gray balance and density check
NOTE: Before checking the copy gray balance and density, be
sure to execute the following jobs.
* Execute the high density image correction (Process correction)
forcibly. (SIM 44-6)
* Execute the half-tone image correction forcibly. (SIM 44-26)
Method 1
Make a copy of the gray test chart (UKOG-0162FCZZ), and check
that they are proper.
that they are proper.
Note for checking the density
To check the density, use the gray test chart (UKOG-0162FCZZ)
and the servicing color test chart (UKOG-0326FCZZ/UKOG-
0326FC11). Set the copy density level to "Manual 3" in the Text/
Printed Photo mode (Manual).
and the servicing color test chart (UKOG-0326FCZZ/UKOG-
0326FC11). Set the copy density level to "Manual 3" in the Text/
Printed Photo mode (Manual).
In addition, all the gray balance adjustments in the user adjustment
mode must be set to the default (center).
mode must be set to the default (center).
Check with the gray test chart (UKOG-0162FCZZ)
In the copy density check with the gray test chart, check to insure
the following conditions.
the following conditions.
Job
No
Adjustment item
Sim
ADJ
1
Developing unit
adjustment
adjustment
ADJ
1A
Developing doctor gap
adjustment
adjustment
ADJ
1B
Developing roller main pole
position adjustment
position adjustment
Paper F
side edge
Paper R
side edge
Copy image
Copy image
Image loss
2.0 2.0mm
Image loss
2.0 2.0mm
AD
J 1
J 1
Developing
unit adjust-
ment
unit adjust-
ment
ADJ
1C
Toner density control reference
value setting
value setting
25-2
ADJ
2
2
High voltage
value
adjustment
value
adjustment
ADJ
2A
Main charger grid voltage
adjustment
adjustment
8-2
ADJ
2B
Developing bias voltage
adjustment
adjustment
8-1
ADJ
2C
Transfer current and voltage
adjustment
adjustment
8-6
ADJ
2D
Transfer separation bias
voltage adjustment
voltage adjustment
8-17
ADJ
6
Scan image focus adjustment
48-1
ADJ
11
Gray balance/
density
adjustment
density
adjustment
ADJ
11A
Scanner calibration (CCD
calibration)
calibration)
63-3
Job
No
Adjustment item
Sim
1
2
3
4
5
6
7
8
9
10
W
SHARP GRAY CHART
SHARP gray chart
Patch 1 is not copied.
Patch 2 is
slightly copied.
slightly copied.
Patch 3 is copied.
(Black-and-white copy)
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