Sharp MX-B381 / MX-B401 (serv.man7) Service Manual ▷ View online
MX-B381/B401 SIMULATION 5 – 52
44-25
Purpose
Setting
Function (Purpose) Used to set the calculating conditions of the
correction value for the half tone process
control.
control.
Section
Process
Operation/Procedure
1)
1)
Select a target adjustment density level with [
] [] key.
2)
Enter the set value with 10-key.
3)
Press [OK] key.
NOTE: Set the items to the default values unless a change is spe-
cially required.
44-26
Purpose
Adjustment/Setup
Function (Purpose) Used to execute the half tone process con-
trol compulsorily.
Section
Process
Operation/Procedure
Press [EXECUTE] key.
The half tone process control is performed and the operation data
are displayed.
Press [EXECUTE] 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.
Section
Process
Operation/Procedure
1)
1)
Press [EXECUTE] key.
2)
Press [YES] key.
The correction data of the half tone process control are
cleared.
The correction data of the half tone process control are
cleared.
44-28
Purpose
Adjustment/Setup
Function (Purpose) Used to set the process control execution
conditions.
Section
Process
Operation/Procedure
1)
1)
Select a target item of setting with [
] [] key on the touch
panel.
2)
Enter the set value with 10-key.
3)
Press [OK] key. (The set value is saved.)
NOTE: Set the items to the default values unless a change is spe-
cially required.
Item/Display
Content
Setting
range
Default
value
A
LOW FIELD
LOWER LIMIT
LOWER LIMIT
Low density approximate
expression data lower limit
value
expression data lower limit
value
0 - 255
98
B
LOW FIELD
UPPER LIMIT
UPPER LIMIT
Low density approximate
expression data upper
limit value
expression data upper
limit value
0 - 255
60
C
MID FIELD
LOWER LIMIT
LOWER LIMIT
Medium density
approximate expression
data lower limit value
approximate expression
data lower limit value
0 - 255
90
D
MID FIELD
UPPER LIMIT
UPPER LIMIT
Medium density
approximate expression
data upper limit value
approximate expression
data upper limit value
0 - 255
6
E
HIGHLIGHT
POINT
POINT
Reference point of the
highlight correction
amount
highlight correction
amount
1 - 8
7
INTERRUPTION
Forcible interruption
COMPLETE
Normal complete
ERROR BLACK SENSOR
ADJUSTMENT
ADJUSTMENT
Image density sensor adjustment error
[K]
High density process control error
OTHER
Other error
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MX-B381/B401 SIMULATION 5 – 53
*1: When REFRESH MODE setting is enabled (0), the menu of the user process control execution button is displayed on the user system
setting menu.
When the density change is not within the allowable range, the user can perform the process control manually and forcibly. However, toner
is consumed grater than as usual. This point must be explained to the user clearly.
When the density change is not within the allowable range, the user can perform the process control manually and forcibly. However, toner
is consumed grater than as usual. This point must be explained to the user clearly.
Mode
Item/Display
Content
Setting range
Default
value
Process control
Enable/Disable
setting
Enable/Disable
setting
A
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
B
SW ON
When supplying the power (when
clearing shut-off.)
clearing shut-off.)
Process control Disable
1 - 3
1
3
BK process control Enable
2
Pixel count judgment
(Judgment is based on the
setting value of item K, L.)
(Judgment is based on the
setting value of item K, L.)
3
C
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)
Process control Disable
1 - 3
1
3
BK process control Enable
2
Pixel count judgment
(Judgment is based on the
setting value of item K, L.)
(Judgment is based on the
setting value of item K, L.)
3
D
HUM_LIMIT
HUM judgment is made when turning
ON the power and after passing TIME.
ON the power and after passing TIME.
Process control Disable
1 - 2
1
2
BK process control Enable
2
E
HUM
The temperature and humidity in side
the machine are monitored only during
a job for every 2hours (set by item N).
When the changes in the temperature
and the humidity are greater than the
specified level (the set value of item O)
in comparison with the previous
process control.
the machine are monitored only during
a job for every 2hours (set by item N).
When the changes in the temperature
and the humidity are greater than the
specified level (the set value of item O)
in comparison with the previous
process control.
Process control Disable
1 - 2
1
2
BK process control Enable
2
F
REV1
YES
The accumulated traveling distance of
BK or M position OPC unit reaches the
specified level after turning the power.
BK or M position OPC unit reaches the
specified level after turning the power.
Enable
0 - 1
0
0
NO
Inhibit
1
G
REV2_BK
YES
The accumulated traveling distance of
BK position OPC drum unit reaches the
specified level from execution of the
previous density correction.
BK position OPC drum unit reaches the
specified level from execution of the
previous density correction.
Enable
0 - 1
0
0
NO
Inhibit
1
H
REFRESH
MODE(*1)
MODE(*1)
YES
Select of YES/NO of the manual
process control key with key operation
process control key with key operation
Key operation display
0 - 1
0
1
NO
Key operation NO display
1
I
DAY
When the next warm-up if there is no
job after a job after passing the
specified days from execution of the
previous process control
job after a job after passing the
specified days from execution of the
previous process control
Disable of the specified
days judgment
days judgment
0 - 999
0
1
1 - 999 days passing
1 - 999
Process control
conditions
setting
conditions
setting
J
PIX_RATIO_BK
Magnification ratio setting (%) of the BK toner count specified value
entry of 100 corresponds to 1k of A4 5% print.
entry of 100 corresponds to 1k of A4 5% print.
1 - 999
10
K
INTERVAL TIME
Passing time setting of "TIME" (h: hour)
1-255
(1-255: 1-255h passed)
12
L
HUM HOUR
Interval setting of the temperature and humidity monitoring time of
"HUM" (h: hour)
"HUM" (h: hour)
1 - 24
2
M
HUM_DIF
Area difference specified value when compared with the execution of
the previous process control of "HUM”
the previous process control of "HUM”
1 - 9
2
N
BK_RATIO
Magnification ratio setting (%) of the specified value of the BK position
OPC drum traveling distance of "REV2_BK”
OPC drum traveling distance of "REV2_BK”
1-999
(Entry of 20 corresponds
to 100,000mm.)
15
O
HT_DIF
Bias change difference value used for judgment of HT process control
1 - 255
40
Secondary
transfer
cleaning setting
transfer
cleaning setting
P
2TRAN_CLEAN_TIME1
Secondary transfer cleaning process time judgment threshold value 1
1 - 999
200
Q
2TRAN_CLEAN_TIME2
Secondary transfer cleaning process time judgment threshold value 2
1 - 999
300
R
2TRAN_CLEAN_TIME3
Secondary transfer cleaning process time judgment threshold value 3
1 - 999
500
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MX-B381/B401 SIMULATION 5 – 54
44-29
Purpose
Setting
Function (Purpose) Used to set the operating conditions of the
process control during a job.
Section
Process
Operation/Procedure
1)
1)
Select a target item of setting with [
] [] key on the touch
panel.
2)
Enter the set value with 10-key.
3)
Press [OK] key.
HV: High density process control
HT: Half tone process control
HT: Half tone process control
44-37
Purpose
Adjustment/Setup
Function (Purpose) Used to set the development bias correc-
tion level in the continuous printing opera-
tion.
tion.
Section
Operation/Procedure
1)
1)
Select a target item with [
] [] buttons.
2)
Enter the set value with 10-key.
3)
Press [OK] key.
NOTE: When the print density is varied in the continuous printing
operation, this simulation is used.
<Use example>
44-43
Purpose
Data display
Function (Purpose) Used to display the identification informa-
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.
46
46-2
Purpose
Adjustment
Function (Purpose) Used to adjust the copy density in the copy
mode.
Section
Operation/Procedure
1)
1)
Select an adjustment target item with [
] [] key.
2)
Enter the set value with 10-key.
* When the key is pressed, the setting value of each
* When the key is pressed, the setting value of each
item can be changed with 1up (1down) collectively.
3)
Press [OK] key. (The set value is saved.)
To adjust the copy density in the low density area, select the "LOW"
mode and change the adjustment value. To adjust the copy density
in the high density area, select the "HIGH" mode and change the
adjustment value.
When the adjustment value is increased, the copy density is
increased. When the adjustment value is decreased, the copy den-
sity is decreased.
mode and change the adjustment value. To adjust the copy density
in the high density area, select the "HIGH" mode and change the
adjustment value.
When the adjustment value is increased, the copy density is
increased. When the adjustment value is decreased, the copy den-
sity is decreased.
Item/Display
Content
Setting range
Default
value
A
COPY
During copy job
0 - 2
0: No execution
1: HV only
3: HV
1: HV only
3: HV
HT
2
B
PRINTER
During print job
2
C
FAX
During FAX print
job
job
2
D
SELF PRINT
During self print
2
Item/
Display
Default
value
Variable
range
Current DV
Bias voltage
Bias voltage
less than 300[v]
A
0
0-5 (*1)
300[v] or more, less than
450[v]
450[v]
B
0
450[v] or more
C
0
Time (T) from
termination
of continuous
outputs to
start of the
next output
operation
termination
of continuous
outputs to
start of the
next output
operation
Less than 10 [sec] &
after process control
JOB
after process control
JOB
D
4
1-12 (*2)
10 [sec] or more, less
than 60 [sec]
than 60 [sec]
E
3
60 [sec] or more, less
than 240 [sec]
than 240 [sec]
F
1
240 [sec] or more
G
1
(*1)
The default of A/B/C is "0" and this function is set to OFF.
When 10 sheets are copied in the multi copy mode and if the 10th
sheet is lighter than the 1st sheet, set to the range of 1 - 5. The
greater the value is, the darker the density of the 10th sheet is.
When 10 sheets are copied in the multi copy mode and if the 10th
sheet is lighter than the 1st sheet, set to the range of 1 - 5. The
greater the value is, the darker the density of the 10th sheet is.
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(*2)
The correction amount is adjusted by the length of the leaving time.
When (*1) is 1 - 5, the greater the value of (*2), the greater the
density when starting printing is.
When (*1) is 1 - 5, the greater the value of (*2), the greater the
density when starting printing is.
Item/Display
Content
Display
range
A
DVCH KIND K
Development unit identification number
1 - 9
B
DVCH_AD_K
Developing unit identification number
AD value
AD value
0 - 255
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MX-B381/B401 SIMULATION 5 – 55
46-4
Purpose
Adjustment (Color scanner mode)
Function (Purpose) Used to adjust the density in the image
send mode.
Section
Operation/Procedure
1)
1)
Select an adjustment target item with [
] [] key.
2)
Enter the set value with 10-key.
* When the key is pressed, the setting value of each
* When the key is pressed, the setting value of each
item can be changed with 1up (1down) collectively.
3)
Press [OK] key. (The set value is saved.)
When the adjustment value is increased, the image density is
increased, and vice versa.
increased, and vice versa.
46-5
Purpose
Adjustment (Monochrome scanner mode)
Function (Purpose) Used to adjust the density in the image
send mode.
Section
Operation/Procedure
1)
1)
Select an adjustment target item with [
] [] key.
2)
Enter the set value with 10-key.
* When the key is pressed, the setting value of each
* When the key is pressed, the setting value of each
item can be changed with 1up (1down) collectively.
3)
Press [OK] key. (The set value is saved.)
When the adjustment value is increased, the image density is
increased, and vice versa.
increased, and vice versa.
46-8
Purpose
Adjustment (Color scanner mode)
Function (Purpose) Used to adjust the image send mode color
balance RGB.
Section
Operation/Procedure
1)
1)
Select an adjustment target.
2)
Select an adjustment target item with [
] [] key.
3)
Enter the set value with 10-key.
4)
Press [OK] key. (The set value is saved.)
The density can be adjusted separately for the low density area
and the high density area.
When the adjustment value is increased, the image density of the
target color is increased, and vice versa.
and the high density area.
When the adjustment value is increased, the image density of the
target color is increased, and vice versa.
Item/Display
Content
Setting
range
Default
value
A
AUTO1
Auto 1
LOW
1 - 99
50
HIGH
1 - 99
50
B
AUTO2
Auto 2
LOW
1 - 99
50
HIGH
1 - 99
50
C
TEXT
Text
LOW
1 - 99
50
HIGH
1 - 99
50
D
TEXT/PRINTED
PHOTO
PHOTO
Text/Printed
Photo
Photo
LOW
1 - 99
50
HIGH
1 - 99
50
E
TEXT/PHOTO
Text/
Photograph
Photograph
LOW
1 - 99
50
HIGH
1 - 99
50
F
PRINTED PHOTO
Printed Photo
LOW
1 - 99
50
HIGH
1 - 99
50
G
PHOTOGRAPH
Photograph
LOW
1 - 99
50
HIGH
1 - 99
50
H
MAP
Map
LOW
1 - 99
50
HIGH
1 - 99
50
I
TEXT (COPY TO
COPY)
COPY)
Text (Copy
document)
document)
LOW
1 - 99
50
HIGH
1 - 99
50
J
TEXT/PRINTED
PHOTO (COPY TO
COPY)
PHOTO (COPY TO
COPY)
Text/Printed
Photo (Copy
document)
Photo (Copy
document)
LOW
1 - 99
50
HIGH
1 - 99
50
K
PRINTED PHOTO
(COPY TO COPY)
(COPY TO COPY)
Printed Photo
(Copy
document)
(Copy
document)
LOW
1 - 99
50
HIGH
1 - 99
50
L
LIGHT
Light
document
document
LOW
1 - 99
50
HIGH
1 - 99
50
Item/Display
Content
Setting
range
Default
value
A
AUTO
Auto
1 - 99
50
B
TEXT
Text
1 - 99
50
C
TEXT/PRINTED
PHOTO
PHOTO
Text/Printed Photo
1 - 99
50
D
TEXT/PHOTO
Text/Photograph
1 - 99
50
E
PRINTED PHOTO
Printed Photo
1 - 99
50
F
PHOTOGRAPH
Photograph
1 - 99
50
G
MAP
Map
1 - 99
50
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Item/Display
Content
Setting
range
Default
value
A
AUTO TEXT
Automatic/Text
1 - 99
50
B
TEXT
Text
1 - 99
50
C
TEXT/PRINTED
PHOTO
PHOTO
Text/Printed Photo
1 - 99
50
D
TEXT/PHOTO
Text/Photograph
1 - 99
50
E
PRINTED PHOTO
Printed Photo
1 - 99
50
F
PHOTOGRAPH
Photograph
1 - 99
50
G
MAP
Map
1 - 99
50
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