DOWNLOAD Sharp MX-M1055 / MX-M1205 Service Manual ↓ Size: 92.17 MB | Pages: 127 in PDF or view online for FREE

MX-M1205  ADJUSTMENTS  5 – 45

For the service gray balance target, an optional gray balance can
be adjusted with SIM 46-16 and registered with SIM 63-7.

This gray balance is same as the service gray balance target in the
copy gray balance adjustment (Automatic adjustment) (SIM 46-74/
46-24). When, therefore, the service gray balance target is
changed, this target is also changed accordingly.

This procedure must be executed only when the gray balance is
customized with SIM 46-16.

If the gray balance is not customized, this procedure is not
required.

After completion of the customized gray balance adjustment (Man-
ual) with SIM 46-16 according to the user's request, use SIM 63-7
to register the service gray balance target data by using adjustment
pattern that was printed in this mode.

NOTE: In this case, be sure to use A4 or 11" x 8.5" paper for print-

ing the adjustment pattern by SIM 46-16.

By this procedure, the service gray balance target is revised.

It is recommended to keep the printed adjustment pattern created
with SIM 46-16. This adjustment pattern can be used to register the
same gray balance target to another machine.

It is also useful to register the service gray balance target data. 
Do not fold it and keep it under the circumstances which protect it
from discoloration and dirt.

The service gray balance target data is registered immediately after
the gray balance adjustment (Manual) with SIM 46-16.

If a considerable time has passed after completion of the gray bal-
ance adjustment (Manual) with SIM 46-16, the gray balance of the
adjustment pattern at the time of adjustment differs from the gray
balance of the adjustment pattern printed after a considerable time.
Never use such a pattern for the adjustment.

The accuracy of the service gray balance target data can be judges
as follows.

When result of the gray valance adjustment (Auto) with selecting
the service gray balance target in SIM 46-74/46-24 is unsatisfac-
tory or abnormal.

In that case, the registered service target data for the gray balance
adjustment (Auto) may be improper.

This may be caused when an improper or abnormal gray balance
adjustment pattern was used to register the service gray balance
target data for the gray balance adjustment with SIM 63-7.

The gray balance adjustment pattern used in registration was made
and printed by the gray balance adjustment (Manual) with SIM 46-
16. This procedure may have been executed erroneously

A

Factory gray balance (gamma) target

The factory target is fixed.

B

Service gray balance (gamma) target

This target is used when the user requests to customize the gray balance to user's desired level. In advance, 
the user's unique gray balance must be registered as the service gray balance target. The above registration 
(setting) is made by the serviceman with SIM 46-16 to adjust the gray balance and with SIM 63-7 to register it.
This gray balance target is used when the user executes the gray balance adjustment. When, therefore, the 
service gray balance target is changed, the gray balance target of the user's gray balance adjustment is also 
changed. The default setting (factory setting) of the gray balance is same as the factory gray balance target.
If the user does not request for customizing the gray balance, be sure to use SIM 63-8 to set the gray balance 
to the factory gray balance target.

C

User gray balance (gamma) target

Same gray balance as the service gray balance (gamma) target. When the service gray balance target is 
changed, this gray balance target is also changed accordingly.

Gray balance target in the copy gray balance
automatic adjustment (SIM 46-24)

Factory gray balance
target

Execute SIM 63-8.
(The service gray balance target is the 
same as the factory gray balance target.)

Factory setting

Factory gray balance
target

=

=

Gray balance target in the user gray balance adjustment

Gray balance target for
the user gray balance
adjustment

Service gray balance
target

Service gray balance
target

Service gray balance
target

Service gray balance
target (Unique)

=

Factory gray balance
target 

Use SIM 46-16 to adjust the optional gray 
balance, and use SIM 63-7 to register it.

MX-M1205  ADJUSTMENTS  5 – 46

1)

Use SIM 46-16 (Copy gray balance adjustment (manual
adjustment) mode) to print two sheets of the gray patch image
(adjustment pattern).

NOTE: In this case, be sure to use A4 or 11" x 8.5" paper for print-

ing the adjustment pattern by SIM 46-16.

If the gray balance is shifted from the standard, an adjustment
is required. If not, an adjustment is not required. When an
optional gray balance is requested by the user, make an
adjustment.

2)

Enter the SIM 63-7 mode.

3)

Press [SETUP] key.

4)

Set the gray patch image (adjustment pattern) correctly
adjusted and printed in the copy gray balance adjustment
(Manual adjustment) (SIM 46-16) (ADJ 11C (2)) on the docu-
ment table.

The gray 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 gray 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 gray 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 gray patch image (adjust-
ment pattern).

If the gray balance could not be adjusted satisfactorily with
SIM 46-16 (Gray balance adjustment (Manual)), do not exe-
cute SIM 63-7 to register the service gray balance target data.

5)

Press [EXECUTE] key.

The gray patch image (adjustment pattern) is read.

6)

Press [REPEAT] key, set the second gray patch image (adjust-
ment pattern), and execute the procedure 5) again.

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 gray balance (gamma) of the gray patch image (adjust-
ment pattern) used in the procedure 5) is set as the service tar-
get.

NOTE: This procedure must not be executed when the copy gray

balance was adjusted with SIM 46-16 to a unique gray bal-
ance requested by the user and it was registered as the
service gray balance target with SIM 63-7.

1)

Enter the SIM 63-8 mode.

2)

Press [EXECUTE] key.

3)

Press [YES] key.

The service gray balance target and the gray balance target for the
user gray balance adjustment are set to the same gray balance as
the factory gray balance target.

A

Factory gray balance 
(gamma) target

The factory target is fixed.

B

Service gray balance 
(gamma) target

This target is used when the user requests to customize the gray balance to user's desired level. In advance, the user's unique 
gray balance must be registered as the service gray balance target. The above registration (setting) is made by the serviceman 
with SIM 67-25 to adjust the gray balance and with SIM 67-27 to register it.
This gray balance target is used when the user executes the gray balance adjustment. When, therefore, the service gray balance 
target is changed, the gray balance target of the user's gray balance adjustment is also changed. The default setting (factory 
setting) of the gray balance is same as the factory gray balance target.
If the user does not request for customizing the gray balance, be sure to use SIM 67-28 to set the gray balance to the factory 
gray balance target.

C

User gray balance 
(gamma) target

Same gray balance as the service gray balance (gamma) target. When the service gray balance target is changed, this gray 
balance target is also changed accordingly.

Gray balance target in the printer gray balance
automatic adjustment (SIM 67-24)

Factory gray balance
target

Execute SIM 67-28.
(The service gray balance target is 
the same as the factory gray balance 
target.)

Factory setting

Factory gray balance
target

=

=

Gray balance target in the user gray balance adjustment

Gray balance target for
the user gray balance
adjustment

Service gray balance
target

Service gray balance
target

Service gray balance
target

Service gray balance
target (Unique)

=

Factory gray balance
target

Use SIM 67-25 to adjust the optional gray 
balance, and use SIM 67-27 to register it.

MX-M1205  ADJUSTMENTS  5 – 47

For the service gray balance target, an optional gray balance can
be adjusted with SIM 67-25 and registered with SIM 67-27.

This gray balance is same as the service gray balance target in the
printer gray balance adjustment (Automatic adjustment) (SIM 46-
74/67-24). When, therefore, the service gray balance target is
changed, this target is also changed accordingly.

This procedure must be executed only when the gray balance is
customized with SIM 67-25.

If the gray balance is not customized, this procedure is not
required.

After completion of the customized gray balance adjustment (Man-
ual) with SIM 67-25 according to the user's request, use SIM 67-27
to register the service gray balance target data by use of the printed
adjustment pattern.

NOTE: In this case, be sure to use A4 or 11" x 8.5" paper for print-

ing the adjustment pattern by SIM 67-25.

By this procedure, the service gray balance target is revised.

It is recommended to keep the printed adjustment pattern created
with SIM 67-25. This adjustment pattern can be used to register the
same gray balance target to another machine.

It is also useful to register the service gray balance target data. Do
not fold it and keep it under the circumstances which protect it from
discoloration and dirt.

The service gray balance target data is basically registered imme-
diately after the gray balance adjustment (Manual) with SIM 67-25.

If a considerable time has passed after completion of the gray bal-
ance adjustment (Manual) with SIM 67-25, the gray balance of the
adjustment pattern at the time of adjustment differs from the gray
balance of the adjustment pattern printed after a considerable time.
Never use such a pattern for the adjustment.

The correctness of the service gray balance target data can be
judged as follows.

When result of the color valance adjustment (Auto) with selecting
the service gray balance target in SIM 67-24 is unsatisfactory or
abnormal.

In that case, the registered service target data for the gray balance
adjustment (Auto) may be improper.

This may be caused when an improper or abnormal gray balance
adjustment pattern was used to register the service gray balance
target data for the gray balance adjustment with SIM 67-27.

The gray balance adjustment pattern used in registration was made
and printed by the gray balance adjustment (Manual) with SIM 67-
25. This procedure may have been executed erroneously.

1)

Use SIM 67-25 (Printer gray balance adjustment (manual
adjustment) mode) to print two sheets of the gray patch image
(adjustment pattern).

NOTE: In this case, be sure to use A4 or 11" x 8.5" paper for print-

ing the adjustment pattern by SIM 67-25.

If the gray balance is shifted from the standard, an adjustment
is required. If not, an adjustment is not required. When an
optional gray balance is requested by the user, make an
adjustment.

2)

Enter the SIM 67-27 mode.

3)

Press [SETUP] key.

4)

Set the gray patch image (adjustment pattern) correctly
adjusted and printed in the printer gray balance adjustment
(Manual adjustment) (SIM 67-25) (ADJ 11E (2)) on the docu-
ment table.

A gray 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 gray patch image (adjust-
ment pattern).

This procedure must not be executed when the copy gray bal-
ance (manual) was adjusted with SIM 67-25 to a unique gray
balance requested by the user and it was registered as the
service gray balance target with SIM 67-27.

5)

Press [EXECUTE] key.

The gray patch image (adjustment pattern) is read.

6)

Press [REPEAT] key, set the second gray patch image (adjust-
ment pattern), and execute the procedure 5) again.

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 gray balance (gamma) of the gray patch image (adjust-
ment pattern) used in the procedure 5) is set as the service tar-
get.

NOTE: This procedure must not be executed when the copy gray

balance was adjusted with SIM 67-25 to a unique gray bal-
ance requested by the user and it was registered as the
service gray balance target with SIM 67-27.

1)

Enter the SIM 67-28 mode.

2)

Press [EXECUTE] key.

3)

Press [YES] key.

The service gray balance target and the gray balance target for the
user gray balance adjustment are set to the same gray balance as
the factory gray balance target.

MX-M1205  ADJUSTMENTS  5 – 48

 

This adjustment must be performed in the following cases:

* When a consumable part (developer, OPC drum, transfer belt) is

replaced.

* When the CCD unit is replaced.

* When the scanner (reading) section is disassembled.

* When the scanner (reading) unit is replaced.

* 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.

SIM46-74 is used to perform the automatic copy gray balance and
density adjustment (SIM46-24) and the automatic printer gray bal-
ance and density adjustment (SIM67-24) continuously.

Since it is desirable to perform the copy gray balance adjustment
(automatic adjustment) before the automatic printer gray balance
and density adjustment, it is advisable to perform the adjustment in
this mode.

This mode is also advisable to effectively perform both of the auto-
matic copy gray balance and density adjustment (SIM46-24) and
the automatic printer gray balance and density adjustment (SIM67-
24). It saves considerable time when compared with performing
each of the auto copy/printer gray balance and the density adjust-
ment individually.

The gray balance adjustment (automatic adjustment) is used to
adjust the density automatically.

When this adjustment is executed, the gray balance adjustments of
all the copy/printer modes are revised.