Canon imageRUNNER ADVANCE 9070 PRO series Service Manual Digest page 302

COPIER> DISPLAY> DENS
DEV-DC-Y Dis of developing DC voltage (Y)
Lv.2 Details To display the latest Y developing DC voltage Vdc.
Use case • When image failure occurs due to carrier adherence
• When fogging appears
• When fogging is deteriorated
Display/adj/set range 0 to 1023
Unit V
Appropriate target value 200 to 800
DEV-DC-M Dis of developing DC voltage (M)
Lv.2 Details To display the latest M developing DC voltage Vdc.
Use case • When image failure occurs due to carrier adherence
• When fogging appears
• When fogging is deteriorated
Display/adj/set range 0 to 1023
Unit V
Appropriate target value 200 to 800
DEV-DC-C Dis of developing DC voltage (C)
Lv.2 Details To display the latest C developing DC voltage Vdc.
Use case • When image failure occurs due to carrier adherence
• When fogging appears
• When fogging is deteriorated
Display/adj/set range 0 to 1023
Unit V
Appropriate target value 200 to 800
DEV-DC-K Dis of developing DC voltage (Bk)
Lv.2 Details To display the latest Bk developing DC voltage Vdc.
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Use case • When image failure occurs due to carrier adherence
• When fogging appears
• When fogging is deteriorated
Display/adj/set range 0 to 1023
Unit V
Appropriate target value 200 to 800
CHG-DC-Y Dis of primary charging DC voltage (Y)
Lv.2 Details To display the latest primary charging DC voltage of Y color.
Display/adj/set range 0 to 1000, 50 to 200
Unit V, %
CHG-DC-M Dis of primary charging DC voltage (M)
Lv.2 Details To display the latest primary charging DC voltage of M color.
Display/adj/set range 0 to 1000, 50 to 200
Unit V, %
CHG-DC-C Dis of primary charging DC voltage (C)
Lv.2 Details To display the latest primary charging DC voltage of C color.
Display/adj/set range 0 to 1000, 50 to 200
Unit V, %
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COPIER> DISPLAY> DENS
D-K-TRGT Dis of ATR ctrl Bk patch target density
Lv.2 Details To display the Bk patch image target density created by ATR control.
Use case When analyzing the cause of a problem
Caution Take necessary action in accordance with the instructions from the
Quality Support Division.
Display/adj/set range 0 to 1023
Appropriate target value 200 to 800
D-CRNT-P Dis of ATR ctrl dark current (P-wave)
Lv.2 Details To display the dark current value (P-wave) measured at ATR control.
Use case When checking the Patch Sensor
Display/adj/set range 0 to 1023
Appropriate target value 100 or under
Supplement/memo Dark current: current flowing when the Patch Sensor LED is OFF.
D-CRNT-S Dis of ATR ctrl dark current (S-wave)
Lv.2 Details To display the dark current value (S-wave) measured at ATR control.
Use case When checking the Patch Sensor
Display/adj/set range 0 to 1023
Appropriate target value 100 or under
Supplement/memo Dark current: current flowing when the Patch Sensor LED is OFF.
P-SENS-S Dis ATR ctrl base light intnsty (S-wave)
Lv.2 Details To display the light intensity (S-wave) reflected from the base (ITB)
at ATR control.
Intolerable values may be caused by insufficient ITB cleaning, etc.
Use case When checking ITB failure at low density or fogging deterioration
Display/adj/set range 0 to 1023
Appropriate target value 10 to 400
Related service mode COPIER> DISPLAY> DENS> P-SENS-P
COPIER> FUNCTION> MISC-P> PT-LPADJ
DENS-Y-H Dis of ATR ctrl Y-clr T/D ratio history
Lv.2 Details To display the latest 8 Y-toner density log data (T/D ratio) detected
by the Toner Density Sensor at ATR control.
Sharp change in values may indicate Toner Density Sensor
disconnection/failure, whereas gradual change in values may
indicate failure in toner supply system.
Use case When checking toner density in the Developing Assembly at low
density or fogging deterioration
Display/adj/set range 0 to 255
Appropriate target value 80 to 210