8
8
8-90
8-90
Service Mode > COPIER > ADJUST > DENS
Service Mode > COPIER > ADJUST > DENS
COPIER > ADJUST > DENS
P-TG-K
Adj of ATR control Bk-color target value
Lv.2 Details
To adjust the offset of the ATR patch target value for Bk.
When the target value determined upon initialization is changed, the
TD ratio is also changed.
Fogging and density increase are alleviated when the value is
smaller, and carrier adherence is alleviated when it is larger.
Use case
When density failures, fogging, carrier adherence, etc. occur
Adj/set/operate method 1) Enter the setting value (switch negative/positive by -/+ key) and
press OK key.
2) Turn OFF/ON the main power switch.
3) Make 50 prints of approx. 10% image ratio (e.g. COPIER> TEST>
PG> TYPE: 16) 4 times.
4) Execute full adjustment of auto gradation adjustment.
Caution
Execute the auto gradation adjustment first to increase the density. If
you adjust the offset of the target value, fogging might get worse.
Display/adj/set range
-4 to 4
Default value
0
DMAX-K
Adj D-max ctrl Bk-color dens target VL
Lv.2 Details
An image failure might occur because the density target value of the
D-max control becomes out of the setting table due to environment
change.
Adjust the offset of the Bk-color density target value of D-max
control.
The offset is reset when D-max control (full adjustment) is executed.
Use case
When any image failure occurs due to environment change
Adj/set/operate method 1) Enter the setting value (switch negative/positive by -/+ key) and
press OK key.
2) Turn OFF/ON the main power switch.
Caution
Do not use this at the normal service.
Display/adj/set range
-128 to 128
Default value
0
P-ALPHA
Adjustment of Patch Sensor alpha value
Lv.1 Details
To adjust the correction coefficient alpha value of the Patch Sensor.
The value multiplied by 1000 is displayed on the screen.
Use case
When the Patch Sensor fails to read the density
Adj/set/operate method 1) Enter the setting value, and then press OK key.
2) Turn OFF/ON the main power switch.
Display/adj/set range
512 to 2047
Default value
1200
Related service mode
COPIER> FUNCTION> MISC-P> PT-LPADJ
COPIER > ADJUST > DENS
REF-K
Bk toner dens target VL entry
Lv.2 Details
To enter the target value of the ATR Sensor (Bk) of ATR control after
RAM clear.
Use case
When checking the value before RAM clear and re-entering it after
RAM clear
Adj/set/operate method 1) Enter the setting value, and then press OK key.
2) Turn OFF/ON the main power switch.
Caution
Do not use this at the normal service.
Display/adj/set range
0 to 255
Default value
90(RAM clear)
DMLMT-HY
Adj Y-clr charge DC voltage upper limit
Lv.2 Details
To adjust the offset of the charging DC voltage upper limit for Y in
D-max control.
Use case
When a failure occurs due to limiter of D-max control
Adj/set/operate method 1) Enter the setting value (switch negative/positive by -/+ key) and
press OK key.
2) Execute quick adjustment of auto gradation adjustment.
Caution
Do not use this at the normal service.
Display/adj/set range
-300 to 300
Unit
V
Default value
0
Related service mode
COPIER>ADJUST>DENS>DMLMT-LY
DMLMT-HM
Adj M-clr charge DC voltage upper limit
Lv.2 Details
To adjust the offset of the charging DC voltage upper limit for M in
D-max control.
Use case
When a failure occurs due to limiter of D-max control
Adj/set/operate method 1) Enter the setting value (switch negative/positive by -/+ key) and
press OK key.
2) Execute quick adjustment of auto gradation adjustment.
Caution
Do not use this at the normal service.
Display/adj/set range
-300 to 300
Unit
V
Default value
0
Related service mode
COPIER>ADJUST>DENS>DMLMT-LM
DMLMT-HC
Adj C-clr charge DC voltage upper limit
Lv.2 Details
To adjust the offset of the charging DC voltage upper limit for C in
D-max control.
Use case
When a failure occurs due to limiter of D-max control
Adj/set/operate method 1) Enter the setting value (switch negative/positive by -/+ key) and
press OK key.
2) Execute quick adjustment of auto gradation adjustment.
Caution
Do not use this at the normal service.
Display/adj/set range
-300 to 300
Unit
V
Default value
0
Related service mode
COPIER>ADJUST>DENS>DMLMT-LC