Sharp AR-BC260 Service Manual page 179

44
44 -1
Purpose Setting
Function Used to set enable/disable of correction operations
(Purpose) in the image forming (process) section.
Section Process (Photoconductor, developing, transfer,
cleaning)
Item Operation
Operation/ 1. Select the process item to enable the operation.
Procedure 2. Press the [EXECUTE] key. (The operations of all
process items must be enabled.)
(Items to be selected)
Display
HV Image forming section correction (Process
correction)
(High-density image density correction)
HT Half-tone image density correction
HT (PRT) *1 Half-tone image density correction (Printer)
TC Transfer output correction
RRM RRM speed correction
MD Photoconductor membrane decrease (sensitivity/
potential) correction
MD (PRT_BK) Photoconductor membrane decrease (sensitivity/
*2 potential) correction (Printer: monochrome)
AR Image resist auto adjustment *3
AR CHK Image resist auto adjustment error judgment
YES/NO *4
*1: Set to OFF when the printer half-tone process control
operation is abnormal. (Default setting: ON)
*2: Set to OFF to improve gradation of the printer monochrome
mode when the life of the photoconductor is nearly expired.
(Default setting: ON)
*3: When SIM 50-20 is used to adjust the image resist to the best
and the image resist adjustment is performed under the
following condition automatically, the best adjustment state
may be changed. To avoid this, set the adjustment item AR to
Disable.
When the adjustment item AR is set to Disable (ON), the
image resist adjustment is automatically performed under the
following conditions.
Normally set to ON condition.
*4: When the image registration automatic adjustment operation
is abnormal, it is judged as an error or not.
• After replacement of a toner cartridge
• At every 8000 copies (total of print and copy)
(When, however, 8000 copies is reached during a job, the
operation is stopped after completion of the job.)
Content
AR-BC260 SIMULATION 9 - 41
44 -2
Purpose Adjustment
Function Black image density sensor adjustment
(Purpose)
Section Process (Transfer)
Item Operation
Operation/ 1. Press the [EXECUTE] key.
Procedure The amplifier gain adjustment of the black image
density sensor is automatically performed.
After completion of the adjustment, the result is
displayed and the [EXECUTE] key display returns to
the original state.
(Display items)
Display Content
A PCS_C Color image density
LED ADJ sensor LED current
adjustment value
B PCS_K Black image density
LED ADJ sensor LED current
adjustment value
C PCS_K Black image density
GAIN sensor output gain
(AMP) adjustment value
D PCS_K Black image density
DARK sensor dark voltage
level
E PCS_K Black image density
GRND sensor transfer belt
surface detection level
F BELTMAX Transfer belt surface
max. detection level
(Black image sensor)
G BELTMIN Transfer belt surface
min. detection level
(Black image sensor)
H BELTDIF Difference between
max. and min. of the
transfer belt surface
detection level
(BELTmax-BELTMIN)
If the adjustment is not completed normally, "ERROR" is
displayed.
In case of an error, the contents of the adjustment are not revised.
Min Max Default
Value Value value
1 255 51
1 255 51
0 15 0
0 255 0
0 255 0
0 255 0
0 255 0
0 255 0