Sharp MX-2640N / MX-2640NR / MX-2640FN / MX-3140N / MX-3140NR / MX-3140FN / MX-3640N / MX-3640NR / MX-3640FN (serv.man37) Service Manual ▷ View online
MX-3640N MX-2640N/3140N/3640N (MAIN UNIT) 2 – 7
4) Touch the [Change] key in the above screen to change the set-
tings. The following settings can be configured.
(2) Tray size setup
1) Pull out the paper tray.
Gently pull the tray out until it stops.
If paper remains in the tray, remove it.
If paper remains in the tray, remove it.
2) Adjust the guide plates A and B by squeezing their lock levers
and sliding them t o match the ve rtical and hor izontal dimen-
sions of the paper to be loaded.
The guide plates A and B ar e slidable. Slide each guide plate
The guide plates A and B ar e slidable. Slide each guide plate
while squeezing its lock lever.
E. Specifications setup
Use simulation 26-6 to set the machines destination.
After completion of destination settings, change the set values to
customize the following settings.
Item
Description
Type
Select the type of paper that is loaded in the tray.
The paper types that can be selected vary by paper
tray.
Size
Select the paper size from the list. The paper sizes
that can be selected vary by tray. The sizes that
can be selected may also be restricted by the paper
type selected above.
If the desired size does not appear in the list, select
[Custom Size] and directly enter the size (only for
the bypass tray).
Feeding Approved
Job
Select the modes that can be used. If there is a
function that you do not wish to be used with the
selected tray, disable the function. When the "Type"
is other than plain paper, recycled paper, colored
paper, or a user type, [Fax] and [Internet Fax]
cannot be selected.
A
B
SIM No
Content
26
6
Used to set the destination.
SIM No
Content
26
3
Used to set the auditor specification mode.
5
Used to set the count mode of the total counter and
the maintenance counter.
18
Used to set YES/NO of the toner save mode (Only
in UK and Japan versions)
* For other destination versions, this setup is
made by the user program.
52
Used to set YES/NO of counting when non-print
paper is passed through each counter.
53
Used to set YES/NO of user calibration permission.
65
Used to set the limit number of sheets for stapling.
MX-3640N MX-2640N/3140N/3640N (MAIN UNIT) 2 – 8
3. Image quality check
A. Execution items
Execute the following items.
*1: When a printer option is installed, be sure to execute the above
item.
B. Description
(1) Print engine image distortion adjustment (Manual
adjustment) / OPC drum phase adjustment
(Automatic adjustment) / Color registration
adjustment (Automatic adjustment)
This adjustment performs the print engine image distor tion adjust-
ment, the OPC drum phase adjustment, and the color registration
adjustment simultaneously.
1) Enter SIM50-22 mode.
1) Enter SIM50-22 mode.
2) Press [EXECUTE] key.
[EXECUTE] key is highlighted and the image registration auto-
matic adjustment is started. (It takes about 15 sec to complete
the adjustment.)
No.
Item
SIM
1
Print engine image distortion adjustment (Manual
adjustment) / OPC drum phase adjustment
(Automatic adjustment) / Color registration
adjustment (Automatic adjustment)
50-22
2
Copy color balance and density check
3
Printer color balance/density check
64-5/67-25
4
*1
Copy/Printer color balance and density adjustment
(Automatic adjustment)
46-74
EXECUTE
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Adjustment completed
Abnormal end
MX-3640N MX-2640N/3140N/3640N (MAIN UNIT) 2 – 9
3) When the adjustment is completed, [EXECUTE] key returns to
the normal display, and the value of the adjustment result is
displayed.
The current skew level for each color is displayed on the
The current skew level for each color is displayed on the
SKEW display section.
4) Write down the displayed skew level.
(Meaning of the skew level value and the adjustment proce-
dure)
* If "OK" is displayed for all items of SKEW ALL_ROTATE, C,
* If "OK" is displayed for all items of SKEW ALL_ROTATE, C,
M, and Y, there is no need to perform the adjustment.
* When "R" is displayed at the head of the value, turn the LSU
skew adjustment screw clockwise.
* When "L" is displayed at the head of the value, turn the LSU
skew adjustment screw counterclockwise.
* The turning amount of the adjustment screw corresponds to
each adjustment value. "ALL_ROTATE" indicates the num-
ber of rotations, and C, M, and Y indicate numbers of clicks.
The display value is rounded at the decimal point.
The display value is rounded at the decimal point.
* "ALL_ROTATES" shows the number of rotations of adjust-
ments for all the adjustment screws. "C, M, and Y(SKEW)"
shows the number of adjustment click steps for each adjust-
ment screw of C, M, and Y.
Contents in ( )
MIAN, SUB: Difference from the previous adjustment value of
MIAN, SUB: Difference from the previous adjustment value of
image registration.
Example:
If 105 for this time and 103 for the previous time,
it is displayed as 105.0 (+2.0).
SKEW, ALL_ROTATE: Judgment of the LSU skew adjustment
result. OK or NG.
PHASE: OPC dr um phase adju stment value of the pr evious
PHASE: OPC dr um phase adju stment value of the pr evious
time
Display/
Item
Content
Display
Default
NOTE
MAIN F
C Registration adjustment value main scanning
direction (Cyan laser writing position F side)
1.0 - 199.0
100
M Registration adjustment value main scanning
direction (Magenta laser writing position F side)
1.0 - 199.0
100
Y Registration adjustment value main scanning
direction (Yellow laser writing position F side)
1.0 - 199.0
100
MAIN R
C Registration adjustment value main scanning
direction (Cyan laser writing position R side)
1.0 - 199.0
100
M Registration adjustment value main scanning
direction (Magenta laser writing position R side)
1.0 - 199.0
100
Y Registration adjustment value main scanning
direction (Yellow laser writing position R side)
1.0 - 199.0
100
SUB
C Registration adjustment value sub scanning direction
(Cyan drum Black drum)
1.0 - 199.0
100
M Registration adjustment value sub scanning direction
(Magenta drum Black drum)
1.0 - 199.0
100
Y Registration adjustment value sub scanning direction
(Yellow drum Black drum)
1.0 - 199.0
100
SKEW
C Print skew amount calculation result (Cyan)
-99.9 - 99.9
0
If the value is positive (+), "L" is displayed at the head of the
value. If negative (–), "R" is displayed.
If the value is in the range of –2.1 - +2.1, "(OK)" is displayed at
the bottom of the value. In the other cases, "(NG)" is displayed.
M Print skew amount calculation result (Magenta)
-99.9 - 99.9
0
Y Print skew amount calculation result (Yellow)
-99.9 - 99.9
0
ALL_
ROTATE
Print skew amount calculation result (Overall)
-99.9 - 99.9
0
If the value is positive (+), "L" is displayed at the head of the
value. If negative (–), "R" is displayed.
If the value is in the range of –1.6 - +1.6, "(OK)" is displayed at
the bottom of the value. In the other cases, "(NG)" is displayed.
PHASE
OPC drum phase adjustment value
1 - 8
1
MX-3640N MX-2640N/3140N/3640N (MAIN UNIT) 2 – 10
5) If the display o f ALL_ROTATE is NG, turn all the LSU skew
adjustment screws to adjust, and perform the procedures 2) to
4).
Repeat the procedures 2) to 5) until the display of
Repeat the procedures 2) to 5) until the display of
ALL_ROTATE becomes OK. If the display of ALL_ROTATE is
OK, go to the procedure 6).
For the adjustment, remo ve the front cove r and the waste
For the adjustment, remo ve the front cove r and the waste
toner box, and turn the skew adjustment screw.
6) Repeat the procedures 2) to 4) again, and check to confirm
that C, M, and Y (SKEW) are OK.
If any of them is NG , turn the LSU ske w adjustment screw of
If any of them is NG , turn the LSU ske w adjustment screw of
the corresponding color to adjust.
When the adjustment is made by turning the LSU skew adjustment
screw of K, the states of C, M and Y (SKEW) are changed. Execute
SIM50-22 to check to confirm that C, M, and Y (SKEW) are OK.
When an abnormality occurs, "ERROR" is displayed.
In this case, check each drive section and the process section.
When an abnormality occurs, "ERROR" is displayed.
In this case, check each drive section and the process section.
(2) Copy color balance and density check
Before checking the copy color balance and density, be sure to
execute the following jobs.
* Execute the high density image correction (Process correction)
* 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 a copy
Method 1
Make a copy of the gray test chart (UKOG-0162FCZZ) and a copy
of the servicing color test ch
art (UKOG-0326FCZZ/UKOG-
0326FC11), and check that they are proper.
a. Note for execution of the color balance and d ensity check in the
a. Note for execution of the color balance and d ensity check in the
color copy mode
To check the copy color balance and density, use the gray test
chart (UKOG-0162FCZZ) and the ser vicing color test chart
(UKOG-0326FCZZ/UKOG-0326FC11). Set the copy density
level to "3" in the Text/Printed Photo mode (Manual), and make a
copy.
At that time, all the color balance adjustments in the user adjust-
At that time, all the color balance adjustments in the user adjust-
ment mode must be set to the default (center).
In addition, be sure to use the specified paper for color.
In addition, be sure to use the specified paper for color.
b. Note for checking the monochrome copy mode density
To check the density, use the gray test chart (UKOG-0162FCZZ).
Set the copy density level to "Manual 3" in the Text/Printed Photo
mode (Manual).
In addition, all the color balance adjustments in the user adjust-
In addition, all the color balance adjustments in the user adjust-
ment 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
In the copy density check with the gray test chart, check to insure
the following conditions.
For the color (gray) balance, u se the servicing color t est chart
(UKOG-0326FCZZ/UKOG-0326FC11) to check.
[Check with the ser vicing color test chart (UKOG-0326F CZZ/
UKOG-0326FC11)]
In the copy color balance check with the servicing color test chart,
In the copy color balance check with the servicing color test chart,
check to insure the following conditions.
1
2
3
4
5
6
7
8
9
10
W
SHARP GRAY CHART
SHARP gray chart
Patch 1 is
slightly copied.
slightly copied.
Patch 2 is copied.
(Color copy)
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.
(
py)
Serviceman chart (Color patch section)
The densities of patches 1 - 6 of
each color are properly balanced.
each color are properly balanced.
Patch 7 is slightly
copied or not copied.
copied or not copied.
(Color copy)
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