Sharp Mx 2310u Owners Manual

							MX-3610N  ADJUSTMENTS AND SETTINGS  4 – 25
 
ADJ 8Scan image focus adjustment
This adjustment must be performed in the following cases:
* 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-k ey and press [OK] key.
3) Place a scale on the original  table as illustrated below.
4) Make a normal copy on A4 paper. Go to the copy mode, and make a copy.
5) Compare the copied image of the scale and the actual scale length in terms of length. 6) Obtain the copy magnification ratio correction ratio in the main
scanning direction from the following formula.
Main scanning direction copy magnification ratio correction
ratio = (Original size - Copy im age size) / Original size x 100%
(Example) 
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
If the copy magnification ratio is  not satisfactory, perform the
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.
This procedure must be executed also when the CCD unit is
replaced.


						

							MX-3610N  ADJUSTMENTS AND SETTINGS  4 – 26
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 prob-
lem, which cannot be adjusted in the market. In that case, the
whole scanner unit must be replaced.
11) Slide the CCD unit in the ar row 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.
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.
* Fix the CCD unit so that it is in parallel with the line marked in procedure 9).
12) Make a copy and check the c opy magnification ratio again.
If the copy magnification ratio is not in the range of 100   1%,
repeat the procedures of 9) - 11 ) until the condition is satisfied.
By changing the CCD unit fixing posit ion with the simulation 48-1
adjustment value at 50, the copy magnification ratio is adjusted
within the specified range (100   1.0%) and the specified resolution
is obtained based on the optical system structure.
 
ADJ 9Print lead edge image position 
adjustment (Printer mode)
This adjustment must be performed in the following cases:
* When the registration roller section is disassembled.
* When the LSU is replaced or removed.
* U2 trouble has occurred.
* The PCU PWB has been replaced.
* The EEPROM of the PCU PWB has been replaced.
This adjustment is performed by the user to increase the lead edge
void area to greater than the standard value (3mm) in the printer
mode.
1) Enter the SIM 50-5 mode.
A
B
EXECUTEEnd of print
EXECUTE10-key


						

							MX-3610N  ADJUSTMENTS AND SETTINGS  4 – 27
2) Select the set item L with the scroll key, and enter the value
corresponding to the paper feed tray with A4 (11 x 8.5) paper
in it.
3) Press [EXECUTE] key. The adjustment pattern is printed.
4) Measure the distance from the paper lead edge the adjustment pattern to the image lead edge, and check to confirm that it is
in the standard adjustment value range.
Standard adjustment value: 4.0   1.0mm
If the above requirement is not met, do the following steps. 5) Select the adjustment target of the paper feed mode adjust-
ment item DENC with the scroll key.
6) Change the adjustment value. Enter the adjustment value and press the [OK] key or the
[EXECUTE] key.
When [EXECUTE] key is pressed, the adjustment pattern is
printed.
When the adjustment value is increased, the distance from the
paper lead edge to the image lead edge is increased. When
the adjustment value is decreas ed, the distance is decreased.
When the set value is changed by 1, the distance is changed
by about 0.1mm.
Repeat the procedures 4) - 6) until the condition of 4) is satisfied.
 
ADJ 10Color balance/density 
adjustment
(1) Note before execution of the color balance/density  adjustment
* Requisite conditions before exec ution of the color balance/den-
sity adjustment
Before execution of the colo r balance/density adjustment, check
to insure that the adjustments which affect the color balance/den-
sity have been completed properly.
The importance levels of them are shown below.
(Since the following items affect the color balance/density
directly, they must be adjusted or set before execution of the
image quality adjustments.)
1) The following adjustment items must be adjusted properly.
(Though the following items affect the color balance/density,
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.
Display/Item ContentSetting 
range Default
A DEN-C Printer lead edge image 
position adjustment 1 - 99 30
B DEN-B Rear edge void area 
adjustment 1 - 99 30
C FRONT/REAR FRONT/REAR void area  adjustment 1 - 99 20
D DENB-MFT Manual feed rear edge void  area adjustment correction 
value 1 - 99 50
E DENB-CS1 Tray 1 rear edge void area  adjustment correction value 1 - 99 50
F DENB-CS2 Tray 2 rear edge void area  adjustment correction value 1 - 99 50
G DENB-CS3 Tray 3 rear edge void area  adjustment correction value 1 - 99 50
H DENB-CS4 Tray 4 rear edge void area  adjustment correction value 1 - 99 50
I DENB-LCC LCC rear edge void area  adjustment correction value 1 - 99 50
J DENB-ADU ADU rear edge void area  adjustment correction value 1 - 99 50
K DENB-HV Heavy paper correction  value 1 - 99 50
L MULTI COUNT Number of print 1 - 999 1
M PAPER MFT Tray  selectionManual 
paper feed 1 - 5 1 2 (CS1)
CS1 Tray 1 2
CS2 Tray 2 3
CS3 Tray 3 4
CS4 Tray 4 5
N DUPLEX YES Duplex print 
selectionYes
0 - 1 0 1 (NO)
NO No 1
4.0 1.0mm
Job 
No Adjustment item
Simulation
ADJ  3 Image density 
sensor adjustment ADJ 
3A Image density sensor 
calibration 44-13
ADJ  5 Print engine image distortion adjustment / OPC drum 
phase adjustment / Color registration adjustment 
(Print engine section) 50-22/20
Job  No Adjustment item
Simulation
ADJ  1 Adjust the 
developing unit ADJ 
1A Adjust the developing 
doctor gap
ADJ  1B Adjust the developing 
roller main pole position
ADJ  1C Toner density control 
reference value setting 25-2
ADJ  2 Adjusting high 
voltage values ADJ 
2A Adjust the main charger 
grid voltage 8-2
ADJ  2B Adjust the developing 
bias voltage 8-1
ADJ  2C Transfer current and 
voltage adjustment 8-6
ADJ  8 Scan image focus adjustment
48-1 
						

							MX-3610N  ADJUSTMENTS AND SETTINGS  4 – 28
Note for the color balance/density check and adjustments
• For the color balance adjustments, be sure to use the paper
specified for color (recommended paper).
Note that, if another kind of paper is used for the color balance
adjustment, proper image qualities (color balance, density) may
not be obtained.
• When setting the adjustment pattern on the document table in the automatic color balance adj ustment procedures, place 5
sheets of white paper on the adjustment pattern in order to pre-
vent back copying and adverse ef fects of paper wrinkles as far
as possible.
(2) Relationship between the servicing job contents and the  color balance/density check and adjustment
Note that the jobs before and after execution of the color balance/
density check and adjustment depend on the machine status and
the servicing conditions.
Follow the flowchart of the color balance/density adjustment proce-
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.)
4) When an installation, a repair, or inspection is performed. (Without replacement of a consumable part)
(3) 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) 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
of the servicing color test chart (UKOG-0326FCZZ/UKOG-
0326FC11), and check that they are proper.
a. Note for execution of the color balance and density check in the color copy mode
To check the copy color balance and density, use the gray test
chart (UKOG-0162FCZZ) and the servicing 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
adjustment mode must be set to the default (center).
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 bal ance adjustments in the user
adjustment 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.
For the color (gray) balance, use the servicing color test chart
(UKOG-0326FCZZ/UKOG-0326FC11) to check.
Check with the servicing color test chart (UKOG-0326FCZZ/
UKOG-0326FC11)
In the copy color balance check with the servicing color test chart,
check to insure the following conditions.
12 345678910WSHARP GRAY CHARTSHARP gray chartPatch 1 is
slightly copied.
Patch 2 is copied.
(Color copy)
12 345678910WSHARP GRAY CHARTSHARP gray chart
Patch 1 is not copied.
Patch 2 is
slightly copied.
Patch 3 is copied.
(Black-and-white copy)
Serviceman chart (Color patch section)
The densities of patches 1 - 6 of
each color are properly balanced.Patch 7 is slightly
copied or not copied.
(Color copy) 
						

							MX-3610N  ADJUSTMENTS AND SETTINGS  4 – 29
a. Color copy check items (Check to confirm the following:)
1) There are 12 void areas.
2) Registrations (one point for the main scanning, and one point
for the sub scanning) are not shifted.
3) The resolution of 5.0 (5 points) can be seen. 4) The color difference in gray balance between the F and the R
sides is not so great.
5) There are no white and black streaks.
6) Color texts are clearly reproduced.
7) The background density is not so light.
Color difference in gray balance between the F and the R sides
No white and black streaks
Background density
Color text reproduction capability
VoidVoid
Void
VoidVoid
Void Registration
Resolution
Resolution
Resolution
ResolutionResolution 
						

							MX-3610N  ADJUSTMENTS AND SETTINGS  4 – 30
b. Monochrome copy check items (Check to confirm the following:)
1) There are 12 void areas.
2) The resolution of 4.0 (5 points) can be seen.
3) The density difference between the F and the R sides is not so
great. 4) There are no white and black streaks.
5) The background density is not so light.
6) The black low-density gradation is copied slightly.
Void
Resolution
Void
Low-density gradation
Resolution
Density difference between the F and the R sides.No white and black streaks
Background density
Resolution
Resolution
VoidVoid
VoidVo i d
Resolution 
						

							MX-3610N  ADJUSTMENTS AND SETTINGS  4 – 31
(Method 2)
Use SIM46-21 to print the color balance adjustment sheet, and
check each process (CMY) black pa
tch color balance and the black
patch in order to confirm that the color balance adjustment is
proper or not more precisely.
If the color balance of each patch of the process black (CMY mixed
color) is slightly shifted to Magenta, it means that the adjustment is
proper. If the color balance of the adjustment pattern printed in this
mode is slightly shifted to Magenta,  it is converted into the natural
gray color balance by the color  table in an actual copy mode.
(When the color balance target is DEF 1.)
(4) Printer color balance/density check
Before checking the copy color balance and the density, be sure to
execute the following  procedures in advance.
* Execute the high density image correction (Process correction) forcibly. (SIM 44-6)
* The half-tone image correction is forcibly executed. (SIM 44-26)
(Method 1)
Execute SIM 64-5 to print the print test pattern.
When the PCL or the PS printer function is not provided (GDI
model), this method cannot be used for check.
Set each set value to the default and press [EXECUTE] key. The
print test pattern is printed.
The print density must be changed gradually from the lighter level
to the darker level. The density changing direction must not be
reversed. The density level of each color must be almost at the
same level. (Method 2)
When the PCL or the PS printer function is not provided (GDI
model), use this method for check.
Use SIM 67-25 to print the color balance adjustment sheet and
compare each process (CMY) black patch color balance and the
black patch to check the color balance.
The print density must be changed gradually from the lighter level
to the darker level. The density changing direction must not be
reversed.
The density level of each color must be almost at the same level.
Patch B may not be copied.
Patch A must not be copied.
If the color balance of each patch of
 the process black (CMY mixed
color) is slightly shifted to Mage nta, it means that the adjustment is
proper. In an actual print mode, it is converted into the natural gray
color balance by the color table. (When the color balance target is
DEF 1.)
 
10-A Scanner calibration (CCD calibration)
This adjustment must be performed in the following cases:
* When the CCD unit is replaced.
* When a U2 trouble is occurred.
* When the scanner control PWB is replaced.
* When the EEPROM on the scanner control PWB is replaced.
(1) Note before adjustment
• Check that the table glass, No. 1, 2, 3 mirrors, and the lens sur-
face are free from dirt and dust. 
(If there is some dust and dir t, wipe and clean with alcohol.)
• Check to confirm that the patches in BK1 and BK2 arrays of the SIT chart (UKOG-0280FCZZ or UKOG-0280FCZ1) are free from
dirt and scratches.
If they are dirty, clean them.
If they are scratched or st reaked, replace with new one.
Q
OP
NMLKJIHGFEDCBA
Y
M
C
Bk
High
density
1) The max. density section is not blurred.
2) Patch C or D of each of Y, M, C, and BK is very slightly copied. Low
density
CMY
blend
3) Patch for each of Y, M, C, BK
The patch density is identical between patches or not reversed.
The patch density is changed gradually.
PRINTER CALIBRATION
Q
OP
NMLKJIHGFEDCBA
Y
M
C
Bk
1) The max. density section is not blurred.
2) Patch C or D of each of Y, M, C, and BK is very slightly copied.
Low density
CMY
blend
3) Patch for each of Y, M, C, BK The patch density is identical between patches or not reversed.
The patch density is changed gradually.
High density 
						

							MX-3610N  ADJUSTMENTS AND SETTINGS  4 – 32
(2) Adjustment procedures
1) Set the SIT chart (UKOG-0280FCZZ or UKOG-0280FCZ1) to
the reference position on the left rear frame side of the docu-
ment table.
Set the chart so that the lighter density side of the patch is on
the left side.
If the SIT chart is not available, execute SIM 63-5 to set the
CCD gamma to the default. In this case, however, the adjust-
ment accuracy is lower when compared with the adjustment
method using the SIT chart.
Check to insure that the SIT chart (UKOG-0280FCZZ or
UKOG-0280FCZ1) is in close cont act with the document table.
UKOG-0280FCZZ is equivalent to UKOG-0280FCZ1.
2) Enter the SIM 63-3 mode and press [EXECUTE] key. The automatic operation is started. During the adjustment,
[EXECUTE] is highlighted. After completion of the adjustment,
[EXECUTE] returns to the normal display. Since the SIT chart (UKOG-0280FCZZ or UKOG-0280FC Z1)
is easily discolored by sunlight (especially ultraviolet rays) and
humidity and temperature, put it in a bag (such as a dark file)
and store in a dark place of low temperature and low humidity.
SET 1 Color balance adjustment target setup
a. General
When the automatic color balance  adjustment is executed, a cer-
tain color balance (gamma) is used as the target.
There are following three kinds of the target.
• Factory color balance (gamma) target
• Service color balance (gamma) target
• User color balance (gamma) target
In the above three, only the service color balance target can be set
to a desired level.
This setting is required in the following cases.
* When the color balance and densit y adjustments are executed
manually (SIM46-21) (SIM67-25)
* U2 trouble has occurred.
* When the MFP PWB is replaced.
* When the EEPROM on the MFP PWB is replaced.
* The scanner control PWB has been replaced.
* The EEPROM on the scanner control PWB has been replaced.
* When the user requests for customizing the color balance.
* When the service color balance target gamma is judged as improper.
SET 1A Copy color balance adjustment target setup
• Each color balance target for the copy color balance adjustment


						

							MX-3610N  ADJUSTMENTS AND SETTINGS  4 – 33
• Relationship between the factory target and the service target
 and the color balance target for the user color balance adjustment in the copy
color balance adjustment (Automatic adjustment) (SIM 46-74/46-24)
• Factory target in the copy color balance adjustment (SIM 46-74/46-24) By use of SIM 63-11, one of the following color balances can be set as the factory color balance target.
Each of the three color balances cannot be changed. (Fixed)
• Service color balance target in the copy color balance adjust- ment ((Automatic adjustment) SIM 46-74/46-24).
For the service color balance target, an optional color balance
can be adjusted with SIM 46-21 and registered with SIM 63-7.
When, however, SIM 63-8 is executed, the color balance is set to
the same balance as the factory color balance target set with
SIM 63-11.
• Color balance target in t he user color balance adjustment
This color balance is same as the service color balance target in
the copy color balance adjustment  (Automatic adjustment) (SIM
46-74/46-24). When, therefore, the service color balance target
is changed, this target is  also changed accordingly. (Meaning of the service color balance target gamma data and the
purpose of registration)
This procedure must be executed only when the color balance is
customized with SIM 46-21.
If the color balance is not customized, this procedure is not
required.
After completion of the customized color balance adjustment (Man-
ual) with SIM 46-21 according to the users request, use SIM 63-7
to register the service color bal
ance target data by using adjust-
ment pattern that was printed in this mode.
In this case, be sure to use A4 or 11 x 8.5 paper for printing the
adjustment pattern by SIM 46-21.
By this procedure, the service  color balance target is revised.
Use SIM 63-11 to select one of the three
kinds of color balance targets.
Factory color balance
target (DEF1)
Factory color balance
target (DEF2)
Factory color balance
target (DEF3)
Color balance target in the copy color balance
automatic adjustment (SIM 46-24)
Factory color balance
target (one of DEF1 - 3)
Execute SIM 63-8.
(The service color balance target is the
same as the factory color balance target.)
Factory settingFactory color balance
target (DEF1)=
=
Color balance target in the user color balance adjustment
Color balance target for
the user color balance
adjustment Service color balance
targetService color balance
target
Service color balance
target
Service color balance
target (Unique)=
Factory color balance
target
(one of DEF1 - 3) Use SIM 46-21 to adjust the optional color
balance, and use SIM 63-7 to register it.
DEF1
DEF1
ItemContent Default
DEF2
DEF3
Factory color balance target (DEF3) =
Service color balance target/Color balance
target for the user color balance adjustmentThe engine color balance adjustment target in the automatic color balance
operation is slightly shifted to Magenta. When this target is selected, the
color balance is converted into natural gray color balance by the color
correction table in an actual copy mode and print is made.
The engine color balance adjustment target in the automatic color balance
operation is slightly shifted to natural gray color balance. When this target
is selected, the color balance is slightly shifted to Cyan by the color
correction table in an actual copy mode and print is made.
The engine color balance adjustment target in the automatic color balance
operation is slightly shifted to Cyan. When this target is selected, the color
balance is converted into the color balance with enhanced Cyan by the
color correction table in an actual copy mode and print is made.
SIM63-8 SIM63-8
SIM63-8
Factory color balance target (DEF2) =
Service color balance target/Color balance
target for the user color balance adjustment
Factory color balance target
(DEF1) = Service color balance
target/Color balance target for the
user color balance adjustment
Hue
+b* Direction of Yellow
Direction of Blue
(A)
Factory color balance target
(DEF2)
Factory color balance target
(DEF1)
Direction
of Red
Factory color balance target
(DEF3)
Direction
of Green 
						

							MX-3610N  ADJUSTMENTS AND SETTINGS  4 – 34
It is recommended to keep the printed adjustment pattern created
with SIM 46-21. This adjustment pattern can be used to register the
same color balance target to another machine.
It is also useful to register th
e service color balance target data. 
Do not fold it and keep it under the circumstances which protect it
from discoloration and dirt.
The service color balance target  data is registered immediately
after the color balance adjustment (Manual) with SIM 46-21.
If a considerable time has passed after completion of the color bal-
ance adjustment (Manual) with SIM 46-21, the color balance of the
adjustment pattern at the time of adjustment differs from the color
balance of the adjustment pattern printed after a considerable time.
Never use such a pattern for the adjustment.
The accuracy of the service color balance target data can be
judges as follows.
When result of the color valance adjustment (Auto) with selecting
the service color balance target in SIM 46-74/46-24 is unsatisfac-
tory or abnormal.
In that case, the registered service target data for the color balance
adjustment (Auto) may be improper.
This may be caused when an improper or abnormal color balance
adjustment pattern was used to register the service color balance
target data for the color balance adjustment with SIM 63-7.
The color balance adjustment pattern used in registration was
made and printed by the color balance adjustment (Manual) with
SIM 46-21. This procedure may have been executed erroneously
a. Setting procedure
(Setting procedure of an optional color balance (gamma) as the
service color balance target)
1) Use SIM 46-21 (Copy color balance adjustment (manual adjustment) mode) to print two sheets of the color patch image
(adjustment pattern).
In this case, be sure to use A4 or 11 x 8.5 paper for printing
the adjustment pattern by SIM 46-21.
If the color balance is shifted from the standard, an adjustment
is required. If not, an adjustment is not required. When an
optional color balance is requested by the user, make an
adjustment.
2) Enter the SIM 63-7 mode.
3) Press [SETUP] key.
4) Set the color patch image (adjustment pattern) correctly adjusted and printed in the copy color balance adjustment
(Manual adjustment) (SIM 46-21)  (ADJ 10C (2)) on the docu-
ment table.
The color patch image (adjustment pattern) printed with SIM
64-7 can be used instead. In this case, however, check that the
printed pattern is normal.
(When the color patch image (adjustment pattern) is printed by
SIM 64-7, set the item B (PROC ADJ) to 0 (YES) and press
[EXECUTE] key to print.) A color patch image (adjustment pattern) printed by another
machine can be used.
Set the pattern so that the light density side is on the left side.
Place 5 sheets of white paper on the color patch image
(adjustment pattern).
If the color balance could not be 
adjusted satisfactorily with
SIM 46-21 (Color balance adjustment (Manual)), do not exe-
cute SIM 63-7 to register the service color balance target data.
5) Press [EXECUTE] key.
The color patch image (adjustment pattern) is read.
6) Press [REPEAT] key, set the second color patch image (adjustment pattern), and execute the procedure 5) again.
The color balance (gamma) target set level of each color
(KCMY) can be checked with K/C/M/Y keys.
Check that the set level is increased in the sequence of B - Q
(MAX). If there is no variation or  variation is reversed, it is
judged as abnormal.
In case of an abnormality, repair the problem and try again.
7) Press [OK] key. The color balance (gamma) of the color patch image (adjust-
ment pattern) used in the procedure 5) is set as the service tar-
get.
(Procedures to set the service color balance target and the
color balance target for the user color balance adjustment to
the same color balance as the factory color balance target)
This procedure must not be exec uted when the copy color balance
was adjusted with SIM 46-21 to a unique color balance requested
by the user and it was registered as the service color balance tar-
get with SIM 63-7.
When the factory color balance target is changed with SIM 63-11,
be sure to execute this procedure.