Read Sharp AR-C260 (serv.man12) Service Manual online
AR-C260/C260M SIMULATION 9 - 42
∗
After replacement of the OPC drum, be sure to execute this
simulation.
simulation.
(Adjustment items)
If the adjustment is not completed normally, "ERROR" is displayed.
In case of an error, the contents of the adjustment are not revised.
In case of an error, the contents of the adjustment are not revised.
(NOTE)
If the adjustment jig is not available, use the simple adjustment
(SIM44-36). Depending on the machine conditions, however, the
adjustment accuracy is insufficient. Carefully note that.
(SIM44-36). Depending on the machine conditions, however, the
adjustment accuracy is insufficient. Carefully note that.
If toner, the OPC drum, and the transfer belt are not new ones or
almost new ones, use of the simple adjustment method is not
recommendable.
almost new ones, use of the simple adjustment method is not
recommendable.
Though the machine conditions are so well as to use the simple
adjustment (without the adjustment jig), it is better to perform the
adjustment by using the adjustment jig for higher adjustment accuracy.
adjustment (without the adjustment jig), it is better to perform the
adjustment by using the adjustment jig for higher adjustment accuracy.
After the color image density sensor adjustment (adjustment by the
adjusting jig) with SIM44-13, do not execute SIM44-36 unnecessarily.
adjusting jig) with SIM44-13, do not execute SIM44-36 unnecessarily.
C
3RD PATCH
80
0 – 255
Half-tone process
control 1st step 3rd
patch print gradation
control 1st step 3rd
patch print gradation
D
4TH PATCH
100
0 – 255
Half-tone process
control 1st step 4th
patch print gradation
control 1st step 4th
patch print gradation
E
5TH PATCH
255
0 – 255
Half-tone process
control 1st step 5th
patch print gradation
control 1st step 5th
patch print gradation
44
-26
Purpose
Adjustment
Function
(Purpose)
(Purpose)
Used to execute half tone correction compulsorily.
Section
Process (Photoconductor, developing, transfer,
cleaning)
cleaning)
Item
Picture quality
Operation/
Procedure
Procedure
1. Press the [EXECUTE] key, and it is highlighted. The
half tone correction is started.
When the compulsory execution is completed, the
[EXECUTE] key returns to the normal display.
When the compulsory execution is completed, the
[EXECUTE] key returns to the normal display.
∗
In the case of abnormal completion, ERROR is
displayed and the correction data are not stored.
displayed and the correction data are not stored.
44
-27
Purpose
Data clear
Function
(Purpose)
(Purpose)
Used to clear the half tone correction data and set to the
default level.
default level.
Section
Process (Photoconductor, developing, transfer,
cleaning)
cleaning)
Item
Data
Operation/
Procedure
Procedure
1. Press the [EXECUTE] key. The [YES] and [NO] keys
become active.
2. Press the [YES] key, and the half tone correction
data is set to the default level. (If the [NO] key is
pressed, it is canceled.)
pressed, it is canceled.)
Item
Default
setting value
Set
range
Content
44
-36
Purpose
Adjustment
Function
(Purpose)
(Purpose)
Color image density sensor and black image density
sensor adjustment (simple adjustment)
sensor adjustment (simple adjustment)
Section
Process (Transfer)
Operation/
Procedure
Procedure
1. Enter the SIM44-36 mode.
2. Press the [EXECUTE] key.
2. Press the [EXECUTE] key.
Adjustment is performed automatically. After
completion of adjustment, the result is displayed and
the [EXECUTE] key display returns to the original
state.
completion of adjustment, the result is displayed and
the [EXECUTE] key display returns to the original
state.
SIM44-36 is used to adjust both the color image density
sensor and the black image density sensor.
sensor and the black image density sensor.
Display
Content
Min
Value
Max
Value
Default
value
PCS_C CARB
ADJ
ADJ
Color image density sensor
LED current adjustment
target value
LED current adjustment
target value
1
255
108
PCS_C DARK
Color image density sensor
dark voltage level
dark voltage level
0
255
0
PCS_C LED
ADJ
ADJ
Color image density sensor
current adjustment value
current adjustment value
1
255
51
PCS K LED
ADJ
ADJ
Black image density
sensor LED current
adjustment value
sensor LED current
adjustment value
1
255
51
PCS_K GAIN
Black image density
sensor output gain (AMP)
adjustment value
sensor output gain (AMP)
adjustment value
0
15
0
PCS_K DARK
Black image density
sensor dark voltage level
sensor dark voltage level
0
255
0
PCS_K GRND
Black image density
sensor transfer belt surface
detection level
sensor transfer belt surface
detection level
0
255
0
BELTMAX
Transfer belt surface max.
detection level (Black
image sensor)
detection level (Black
image sensor)
0
255
0
BELTMIN
Transfer belt surface min.
detection level (Black
image sensor)
detection level (Black
image sensor)
0
255
0
BELTDIF
Difference between the
max. value and the min.
value of transfer belt
surface detection level
(BELTMAX-BELTMIN)
max. value and the min.
value of transfer belt
surface detection level
(BELTMAX-BELTMIN)
0
255
0
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