Canon imageRUNNER ADVANCE 9070 PRO series Service Manual Digest page 297

COPIER> DISPLAY> DPOT
CHG-AC-C Display of primary charge AC current (C)
Lv.2 Details To display the primary charging AC current lastly flown with the AC
voltage applied to the Charging Roller (C).
Display/adj/set range 0 to 5000
Unit uA
LPWR-Y Display of laser power (Y)
Lv.2 Details To display Y laser power determined by D-max control.
FF display with low image density is considered that the
Photosensitive Drum may be nearly the end of life.
Use case When the image density is low
Display/adj/set range 00 to FF (hexadecimal)
Appropriate target value 60 to FF
LPWR-M Display of laser power (M)
Lv.2 Details To display M laser power determined by D-max control.
FF display with low image density is considered that the
Photosensitive Drum may be nearly the end of life.
Use case When the image density is low
Display/adj/set range 00 - FF (hexadecimal)
Appropriate target value 60 to FF
LPWR-C Display of laser power (C)
Lv.2 Details To display C laser power determined by D-max control.
FF display with low image density is considered that the
Photosensitive Drum may be nearly the end of life.
Use case When the image density is low
Display/adj/set range 00 - FF (hexadecimal)
Appropriate target value 60 to FF
LPWR-K Display of laser power (Bk)
Lv.2 Details To display Bk laser power determined by potential control.
FF display with low image density is considered that the
Photosensitive Drum may be nearly the end of life.
Use case When the image density is low
Display/adj/set range 00 - FF (hexadecimal)
Appropriate target value 60 to FF
PVCONT-Y Dis of target patch contrast potntl (Y)
Lv.2 Details To display the target Y-patch contrast potential.
Check the target patch contrast potential to check whether the toner
supply control is properly executed at image density failure.
Investigate the other possible factors if the value is within the defined
range.
Use case • At the occurrence of an image density failure
• 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 255
Unit V
Appropriate target value 20 to 120
COPIER> DISPLAY> DPOT
PVCONT-M Dis of target patch contrast potntl (M)
Lv.2 Details To display the target M patch contrast potential.
Check the target patch contrast potential to check whether the toner
supply control is properly executed at image density failure.
Investigate the other possible factors if the value is within the defined
range.
Use case • At the occurrence of an image density failure
• 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 255
Unit V
Appropriate target value 20 to 120
PVCONT-C Dis of target patch contrast potntl (C)
Lv.2 Details To display the target C patch contrast potential.
Check the target patch contrast potential to check whether the toner
supply control is properly executed at image density failure.
Investigate the other possible factors if the value is within the defined
range.
Use case • At the occurrence of an image density failure
• 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 255
Unit V
Appropriate target value 20 to 120
PVCONT-K Dis of target patch contrast potntl (Bk)
Lv.2 Details To display the target Bk patch contrast potential.
Check the target patch contrast potential to check whether the toner
supply control is properly executed at image density failure.
Investigate the other possible factors if the value is within the defined
range.
Use case • At the occurrence of an image density failure
• 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 255
Unit V
Appropriate target value 20 to 120
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