Sharp MX-C250 / MX-C250E / MX-C250F / MX-C250FE / MX-C250FR / MX-C300F / MX-C300W / MX-C300WE / MX-C300A / MX-C300WR (serv.man6) Service Manual ▷ View online
MX-C250 SIMULATION 6 – 39
44-21
Purpose
:
Adjustment/Setup
Function (Purpose)
Used to set the half tone process control
target.
target.
Section
Process
Operation/Procedure
1) When pressed [OK]/[START] key, the adjustment is executed
and the results are displayed.
In case of abnormal end, “ERROR” and the following error
codes are displayed.
In case of abnormal end, “ERROR” and the following error
codes are displayed.
44-22
Purpose
:
Operation data display
Function (Purpose)
Used to display the toner patch density
level in the half tone process control opera-
tion.
level in the half tone process control opera-
tion.
Section
Process
Operation/Procedure
1) Select an item to be set with Arrow keys.
2) Enter the set value with 10 keys.
3) Press [OK]/[START] key.
The set value in step 2) is saved.
The the toner patch density level which is created at the half
tone process control operation is displayed.
The the toner patch density level which is created at the half
tone process control operation is displayed.
44-24
Purpose
:
Operation data display
Function (Purpose)
Used to display the correction target and
the correction level in the half tone process
control operation.
the correction level in the half tone process
control operation.
Section
Process
Operation/Procedure
1) Select the display category with 10 keys.
2) Select a target adjustment color with [OK]/[START] key.
44-25
Purpose
:
Setting
Function (Purpose)
Used to set the calculating conditions of the
correction value for the half tone process
control.
correction value for the half tone process
control.
Section
Process
Operation/Procedure
1) Select the display category with 10 keys.
2) Select a target adjustment color with [OK]/[START] key.
3) Enter the set value with 10 keys.
4) Press [OK]/[START] key.
NOTE:
Set the items to the default values unless a change is spe-
cially required.
cially required.
44-26
Purpose
:
Adjustment/Setup
Function (Purpose)
Used to execute the half tone process con-
trol compulsorily.
trol compulsorily.
Section
Process
Operation/Procedure
Press [OK]/[START] key.
The half tone process control is performed and the operation data
are displayed.
Press [OK]/[START] key.
The half tone process control is performed and the operation data
are displayed.
44-27
Purpose
:
Data clear
Function (Purpose)
Used to clear the correction data of the half
tone process control.
tone process control.
Section
Process
Operation/Procedure
1) Press [OK]/[START] key.
The correction data of the half tone process control are cleared.
Item/Display
Content
Range
K/C/M/Y
#1 - #17
Half-tone correction val-
ues in each color
ues in each color
0 - 255
Error code
Content
CL_SEN_ADJ_ERR
Color image density sensor sensi-
tivity adjustment error *
tivity adjustment error *
BK_SEN_ADJ_ERR
Black image density sensor
sensitivity adjustment error *
sensitivity adjustment error *
[YMCK]
High density process control error
[YMCK]
[YMCK]
OTHER
Other errors
Item/Display
Content
K/C/M/Y _n
Patch data display(n=1 - 13)
K/C/M/Y _B1
Belt substrate data (START)
K/C/M/Y _B2
Belt substrate data (LAST)
No.
Item/Display
Content
1
DITHER RAW VALUE
Half tone process control reference dither
value (Previous adjustment)
value (Previous adjustment)
2
SENSOR_TARGET
Half tone process control reference value
3
S_VALUE
Half tone process control correction value
4
BEFORE S_VALUE
Previous half tone process control correction
value
value
5
CALIB VALUE
Automatic calibration reference value
6
CALIB VALUE PRC
Automatic calibration reference value (half
tone process control)
tone process control)
No.
Item
Content
Min
Max
Default
value
1
HIGHT-
LIGHT
LIMIT K
LIGHT
LIMIT K
Correction limit value of
the highlight correction
amount
the highlight correction
amount
0
128
20
2
MAX LIMIT
K
K
Correction limit value of
the highest density value
the highest density value
0
128
20
3
HIGHT-
LIGHT
LIMIT C
LIGHT
LIMIT C
Correction limit value of
the highlight correction
amount
the highlight correction
amount
0
128
20
4
MAX LIMIT
C
C
Correction limit value of
the highest density value
the highest density value
0
128
20
5
HIGHT-
LIGHT
LIMIT M
LIGHT
LIMIT M
Correction limit value of
the highlight correction
amount
the highlight correction
amount
0
128
20
6
MAX LIMIT
M
M
Correction limit value of
the highest density value
the highest density value
0
128
20
7
HIGHT-
LIGHT
LIMIT Y
LIGHT
LIMIT Y
Correction limit value of
the highlight correction
amount
the highlight correction
amount
0
128
20
8
MAX LIMIT
Y
Y
Correction limit value of
the highest density value
the highest density value
0
128
20
ITEMS
DISPLAY ITEMS
CONTENT
RANGE
K/C/M/Y
#1 - #17
Half-tone correction val-
ues in each color
ues in each color
0 - 255
Display
Contents
CL_SEN_ADJ_ERR
Color sensor adjustment error
BK_SEN_ADJ_ERR
Black sensor adjustment error
[YMCK]
High density process control [YMCK] error
OTHER
Other error
MX-C250 SIMULATION 6 – 40
44-28
Purpose
:
Adjustment/Setup
Function (Purpose)
Used to set the process control execution
conditions.
conditions.
Section
Process
Operation/Procedure
1) Select an item to be set with Arrow keys.
2) Enter the set value with 10 keys.
3) Press [OK]/[START] key.
The set value in step 2) is saved.
NOTE: Set the items to the default values unless a change is spe-
cially required.
Mode
Item/Display
Content
Setting range
Default
value
1
Process control
Enable/Disable
setting
Enable/Disable
setting
INITIAL
YES
When warm-up after clearing the
counter of the OPC drum and the
developer unit
counter of the OPC drum and the
developer unit
Enable
0 - 1
0
0
NO
Disable
1
2
SW ON
When supplying the power (when
clearing shut-off.)
clearing shut-off.)
Color process con-
trol Enable
trol Enable
0 - 3
0
3
Process control Dis-
able
able
1
BK process control
Enable
Enable
2
Pixel count judg-
ment (Judgement is
based on the setting
value of item K, L.)
ment (Judgement is
based on the setting
value of item K, L.)
3
3
TIME
After passing the specified time from
leaving READY continuously (Time
can be changed by INTERVAL TIME)
leaving READY continuously (Time
can be changed by INTERVAL TIME)
Color process con-
trol Enable
trol Enable
0 - 3
0
3
Process control Dis-
able
able
1
BK process control
Enable
Enable
2
Pixel count judg-
ment
(Judgement is
based on the setting
value of item K, L.)
ment
(Judgement is
based on the setting
value of item K, L.)
3
4
HUM_LIMIT
HUM judgment is made when turning
ON the power and after passing
TIME.
ON the power and after passing
TIME.
Color process con-
trol Enable
trol Enable
0 - 2
0
0
Process control Dis-
able
able
1
BK process control
Enable
Enable
2
5
Process control
Enable/Disable
setting
Enable/Disable
setting
HUM
The temperature and humidity in side
the machine are monitored only dur-
ing a job for every 2hours (set by item
N). When the changes in the temper-
ature and the humidity are greater
than the specified level (the set value
of item O) in comparison with the pre-
vious process control.
the machine are monitored only dur-
ing a job for every 2hours (set by item
N). When the changes in the temper-
ature and the humidity are greater
than the specified level (the set value
of item O) in comparison with the pre-
vious process control.
Color process con-
trol Enable
trol Enable
0 - 2
0
0
Process control Dis-
able
able
1
BK process control
Enable
Enable
2
6
REV1
YES
The accumulated traveling distance
of BK or M position OPC unit
reaches the specified level after turn-
ing the power.
of BK or M position OPC unit
reaches the specified level after turn-
ing the power.
Enable
0 - 1
0
0
NO
Inhibit
1
7
REV2_BK
YES
The accumulated traveling distance
of BK position OPC drum unit
reaches the specified level from exe-
cution of the previous density correc-
tion.
of BK position OPC drum unit
reaches the specified level from exe-
cution of the previous density correc-
tion.
Enable
0 - 1
0
0
NO
Inhibit
1
8
REV2_CL
YES
The accumulated traveling distance
of M position OPC drum unit reaches
the specified level from execution of
the previous density correction.
of M position OPC drum unit reaches
the specified level from execution of
the previous density correction.
Enable
0 - 1
0
0
NO
Inhibit
1
9
REFRESH
MODE(*1)
MODE(*1)
YES
Select of YES/NO of the manual pro-
cess control key with key operation
cess control key with key operation
Key operation dis-
play
play
0 - 1
0
1
NO
Key operation NO
display
display
1
MX-C250 SIMULATION 6 – 41
10
Process control
conditions set-
ting
conditions set-
ting
DAY
When the next warm-up if there is no
color job after a color job after pass-
ing the specified days from execution
of the previous color process control
color job after a color job after pass-
ing the specified days from execution
of the previous color process control
Disable of the speci-
fied days judgment
fied days judgment
0 - 999
0
1
1 - 999 days passing
999
11
HI-COV
Setting of the execution judgment of the process control in
continuous printing of high print ratio images
continuous printing of high print ratio images
0 - 2
0
12
LO-COV
Setting of the execution judgment of the process control in
continuous printing of low print ratio images
continuous printing of low print ratio images
0 - 1
0
13
REV1_SH
When the accumulated traveling distance of K or M OPC
drum unit reaches the specified level after turning ON the
power.
drum unit reaches the specified level after turning ON the
power.
0 - 1
1
14
REV2_BK_SH
When the accumulated traveling distance of K OPC drum
unit reaches the specified level from execution of the previ-
ous density correction.
unit reaches the specified level from execution of the previ-
ous density correction.
0 - 1
1
15
REV2_CL_SH
When the accumulated traveling distance of M OPC drum
unit reaches the specified level from execution of the previ-
ous density correction.
unit reaches the specified level from execution of the previ-
ous density correction.
0 - 1
1
16
AVERAGE-PAGE
Setting of the number of pages of item HI-COV set value 2
1 - 10
3
17
LIMIT PAGE
Setting of the number of connected jobs of the process con-
trol and of the limit number of the process control
trol and of the limit number of the process control
1 - 10
10
18
PIX_RATIO_BK
Variable magnification ratio setting (%) of the BK toner count
specified value
The set value of 100 corresponds to K print of A4 at the print
ratio of 5%.
specified value
The set value of 100 corresponds to K print of A4 at the print
ratio of 5%.
1 - 999
10
19
PIX_RATIO_CL
Variable magnification ratio setting (%) of the color (CMY)
toner count specified value
The set value of 100 corresponds to K print of A4 at the print
ratio of 5%.
toner count specified value
The set value of 100 corresponds to K print of A4 at the print
ratio of 5%.
1 - 999
10
20
INTERVAL TIME
Setting of the leaving time when turning ON the power
(including the sleep recovery time) (h: hour)
(including the sleep recovery time) (h: hour)
1 - 255
3
21
HUM HOUR
Interval setting of the temperature and humidity monitoring
time of "HUM" (unit: 10 minutes)
time of "HUM" (unit: 10 minutes)
1 - 24
2
22
HUM_DIF
The specified value of the area difference in humidity
between the level at execution of the previous control and the
current humidity (Applied to item HUM)
between the level at execution of the previous control and the
current humidity (Applied to item HUM)
1 - 9
2
23
BK_RATIO
Magnification ratio setting (%) of the specified value of the
BK OPC drum traveling distance of "REV2_BK"
BK OPC drum traveling distance of "REV2_BK"
1-999
(Entry of 20 corresponds
to 100,000mm.)
15
24
M_RATIO
Magnification ratio setting (%) of the M OPC drum traveling
distance of "REV2_CL"
distance of "REV2_CL"
1-999
(Entry of 20 corresponds
to 100,000mm.)
15
25
REV1_RATIO
Magnification ratio setting (%) of the specified value of the
BK OPC drum traveling distance of "REV1"
BK OPC drum traveling distance of "REV1"
1-999 20
26
REV1_RATIO_SH
Magnification ratio setting (%) of the M position OPC drum
traveling distance of "REV1_SH”
traveling distance of "REV1_SH”
1-255
20
27
BK_RATIO_SH
Magnification ratio setting (%) of the specified value of the
BK OPC drum traveling distance of "REV2_BK_SH"
BK OPC drum traveling distance of "REV2_BK_SH"
1-999 15
28
M_RATIO_SH
Magnification ratio setting (%) of the M position OPC drum
traveling distance of "REV2_CL_SH”
traveling distance of "REV2_CL_SH”
1-999 15
29
COLOR BORDER
Magnification ratio setting (%) of the
M position OPC drum traveling dis-
tance when executing the BK process
control
M position OPC drum traveling dis-
tance when executing the BK process
control
BK process control
is executed without
judgment of ratio of
the M OPC drum
traveling distance.
(Addition)
is executed without
judgment of ratio of
the M OPC drum
traveling distance.
(Addition)
0 - 999
20
1 - 999(%)
30
BK ONLY
Disable/Enable setting and setting of
the number of repetition of the BK
process control when monochrome
print is continued.
the number of repetition of the BK
process control when monochrome
print is continued.
Enable 5 time
0 - 6
0
4
Disable 1-5 times
1 - 5
Inhibit
6
31
HT_DIF
Bias change difference value used for judgment of HT pro-
cess control
cess control
1 - 255
40
32
Registration
adjustment set-
ting
adjustment set-
ting
RG_ON_SYNC
CL
Select of synchronous/asynchronous of the power ON pro-
cess control
cess control
0 - 2
0
0
ALL
1
CL/BK
2
33
RG_TEMP_TIMER
Execution timing setting after turning ON the power
0 - 240 (MINUTE)
0
34
RG_PERM_TIMER
Span setting from execution Disable to Enable
0 - 15 (HOUR)
0
35
RG_HOUR_TIMER
Span setting of timer execution
0-15 (Above)+(MINUTE)
6
36
RG_BW_SYNC
Setting of Enable/Disable of the registration adjustment after
a monochrome job
a monochrome job
0-1
1
Mode
Item/Display
Content
Setting range
Default
value
MX-C250 SIMULATION 6 – 42
44-29
Purpose
:
Setting
Function (Purpose)
Used to set the operating conditions of the
process control during a job.
process control during a job.
Section
Process
Operation/Procedure
1) Select an item to be set with Arrow keys.
2) Enter the set value with 10 keys.
3) Press [OK]/[START] key.
The set value in step 2) is saved.
NOTE: Set the items to the default values unless a change is spe-
cially required.
44-31
Purpose
:
Adjustment/Setup
Function (Purpose)
Used to adjust the OPC drum phase. (Man-
ual adjustment)
ual adjustment)
Section
Process
Operation/Procedure
NOTE: For the OPC drum phase adjustment, do not use this simu-
lation, but use SIM50-22 (auto adjustment).
1) Select item A with Arrow key.
2) Enter the value corresponding to the adjustment pattern with 10
keys.
3) Press [OK]/[START] key. (The adjustment pattern is printed out.)
4) Select an adjustment pattern whose deflection is within two
scale lines on the adjustment pattern of C,M, Y colors.
5) Select item B with Arrow keys.
6) Enter the adjustment pattern sheet number selected in proce-
dure 4).
7) Press [OK]/[START] key.
8) The adjusted adjustment pattern is printed.
44-37
Purpose
:
Adjustment/Setup
Function (Purpose)
Used to set the development bias correc-
tion level in the continuous printing opera-
tion.
tion level in the continuous printing opera-
tion.
Section
Operation/Procedure
1) Select an item to be set with Arrow keys.
2) Enter the set value with 10 keys.
3) Press [OK]/[START] key.
The set value in step 2) is saved.
NOTE: When the print density is varied in the continuous printing
operation, this simulation is used.
44-43
Purpose
:
Data display
Function (Purpose)
Used to display the identification informa-
tion of the developing unit.
tion of the developing unit.
Section
Developing system
Operation/Procedure
The identification number and the identification signal level of the
developing unit are displayed.
The identification number and the identification signal level of the
developing unit are displayed.
Item/Display
Content
Setting range
Default
value
1
COPY
During copy
job
job
0 - 2
0
No execu-
tion
tion
2
2
PRINTER
During print job
1
HV only
2
3
FAX
During FAX
print job
print job
2
HV -> HT
2
4
SELF
PRINT
During self
print
2
2
2
Item/Display
Content
Setting
range
Default
value
1
PRINT MODE
Print mode
1 : Deflection check pattern print for every 45 degrees (8-sheet print)
1 - 3
3
(SET
VALUE)
2 : Deflection check pattern print for every 90 degrees (4-sheet print)
3 : Deflection check pattern print at the set value (1-sheet print)
3 : Deflection check pattern print at the set value (1-sheet print)
2
COLOR
Phase adjustment
value BK -> CL
value BK -> CL
Angle step 0 degree (1) 45 degrees (2) 90 degrees (3) 135 degrees (4)
180 degrees (5) 225 degrees (6) 270 degrees (7) 315 degrees (8)
180 degrees (5) 225 degrees (6) 270 degrees (7) 315 degrees (8)
1 - 8
1
3
PAPER
Tray selection
1 : Manual paper feed
1 -3
2
2 : 1 CS
3 : 2CS
3 : 2CS
Item/Display
Contents
Range
Default
value
1
MUL_MC_ADJ
MC bias correction in the
continuous printing is
enabled / disabled.
continuous printing is
enabled / disabled.
0-1
0
Item/Display
Content
Display
range
1
DVCH KIND K
K color development unit identifica-
tion number
tion number
1 - 5
2
DVCH KIND C
C color development unit identifica-
tion number
tion number
1 - 5
3
DVCH KIND M
M color development unit identifica-
tion number
tion number
1 - 5
4
DVCH KIND Y
Y color development unit identifica-
tion number
tion number
1 - 5
5
DVCH_AD_K
K color developing unit identification
number AD value
number AD value
0 - 255
6
DVCH_AD_C
C color developing unit identification
number AD value
number AD value
0 - 255
7
DVCH_AD_M
M color developing unit identifica-
tion number AD value
tion number AD value
0 - 255
8
DVCH_AD_Y
Y color developing unit identification
number AD value
number AD value
0 - 255
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