Canon imageRUNNER ADVANCE 9070 PRO series Service Manual Digest page 428

■ DENS
COPIER> ADJUST> DENS
REF-Y Y toner dens target VL entry
Lv.1 Details To enter the target value of the Toner Density Sensor (Y) of ATR
control after RAM clear.
Use case When checking the value before RAM clear and re-enter it after RAM
clear
Caution Do not use this at the normal service.
Display/adj/set range 0 to 255
REF-M M toner dens target VL entry
Lv.1 Details To enter the target value of the Toner Density Sensor (M) of ATR
control after RAM clear.
Use case When checking the value before RAM clear and re-enter it after RAM
clear
Display/adj/set range 0 to 255
REF-C C toner dens target VL entry
Lv.1 Details To enter the target value of the Toner Density Sensor (C) of ATR
control after RAM clear.
Use case When checking the value before RAM clear and re-enter it after RAM
clear
Display/adj/set range 0 to 255
SIGG-Y Adj of Y color ATR patch dens target VL
Lv.1 Details To enter the Y color ATR patch density target value which is set at
Developing Assembly INIT.
After the entry, write the value in the service label.
Use case When re-entering the value at the time of DC Controller PCB
replacement/RAM clear
5
Display/adj/set range 0 to 1023
Default value 200 to 800
SIGG-M Adj of M color ATR patch dens target VL
Lv.1 Details To enter the M color ATR patch density target value which is set at
Developing Assembly INIT.
After the entry, write the value in the service label.
Use case When re-entering the value at the time of DC Controller PCB
replacement/RAM clear
Display/adj/set range 0 to 1023
Default value 200 to 800
SIGG-C Adj of C color ATR patch dens target VL
Lv.1 Details To enter the C color ATR patch density target value which is set at
Developing Assembly INIT.
After the entry, write the value in the service label.
Use case When re-entering the value at the time of DC Controller PCB
replacement/RAM clear
Display/adj/set range 0 to 1023
Default value 200 to 800
5-200
COPIER> ADJUST> DENS
SIGG-K Adj of Bk color ATR patch dens target VL
Lv.1 Details To enter the Bk color ATR patch density target value which is set at
Developing Assembly INIT.
After the entry, write the value in the service label.
Use case When re-entering the value at the time of DC Controller PCB
replacement/RAM clear
Display/adj/set range 0 to 1023
Default value 200 to 800
HLMT-PTY Toner Dens Sensr(Y) dens crrct upr limit
Lv.2 Details To adjust the upper limit of the target density (T/D ratio) adjustment
on the Toner Density Sensor (Y).
Density failures and carrier adherence are alleviated when the upper
limit is smaller, and fogging and scattering are alleviated when it is
larger.
The value is returned to 0 if COPIER> FUNCTION> INSTALL>
INISET-Y/-4 is executed upon replacement of the developer.
Use case • When adjusting the toner density (T/D ratio) upon occurrence of
density failures, fogging, carrier adherence, and scattering, etc.
• When analyzing the cause of a problem
Adj/set/operate method 1) Enter the setting value, and then press OK key.
2) Turn OFF/ON the main power switch.
Caution • Take necessary action in accordance with the instructions from the
Quality Support Division.
• Do not use the setting value 11.
Display/adj/set range -2 to 2
-2: +2.0%, -1: +1.0%, 0: +/-0%, 1: -1.0%, 2: -2.0%
Default value 0
Related service mode COPIER> FUNCTION> INSTALL> INISET-Y/-4
Supplement/memo Toner dropping: A symptom that toner drops from the Developing
Assembly