Canon imageRUNNER ADVANCE C5255 Series Service Manual page 854

COPIER > DISPLAY > HV-STS
1ATVC-K4 Dis prmry trns current(Bk): full clr mod
Lv.2 Details To display the decuple value of the current flown to the Primary
Transfer Roller (Bk) by the primary transfer ATVC control in full color
mode.
When the two values are out of the target value range (50 to 700),
clear the log information for the appropriate control (COPIER>
FUNCTION> CLEAR> 1TR-CLR).
If the two values are both small, the Primary Transfer Roller may
have reached the end of life.
Use case When estimating the life of Primary Transfer Roller based on the
displayed value
Display/adj/set range 0 to 900
Unit uA
Appropriate target value 50 to 700
Related service mode COPIER> FUNCTION> CLEAR> 1TR-CLR
2ATVC Dis secondary transfer ATVC tgt current
Lv.2 Details To display the decuple value of the voltage flown to the Secondary
Transfer Outer Roller derived from the secondary transfer ATVC
control.
As the usage of the Secondary Transfer Outer Roller is extended,
the value decreases.
When the two values are out of the target value range (50 to 700),
clear the log information for the appropriate control (COPIER>
FUNCTION> CLEAR> 2TR-CLR).
If the two values are both small, the Secondary Transfer Roller may
have reached the end of life.
Use case When identifying the cause at the occurrence of an image failure
Display/adj/set range 0 to 900
Unit uA
Appropriate target value 50 to 700
Related service mode COPIER> FUNCTION> CLEAR> 2TR-CLR
THCK-Y Display of Y Drum abrasion level
Lv.1 Details To display the Y Photosensitive Drum abrasion level calculated from
the drum film thickness detection results.
The drum film thickness detection results are reflected to the controls
of charging, development and transfer.
Use case - When checking the validity of the setting values for transfer and
development
- When checking the change in the drum film thickness against the
Drum Cartridge life
Display/adj/set range 0 to 20
Unit um
Appropriate target value 0 to 15
8
Service Mode > COPIER > DISPLAY > HV-STS
8 Service Mode > COPIER > DISPLAY > HV-STS
COPIER > DISPLAY > HV-STS
THCK-M Display of M Drum abrasion level
Lv.1 Details To display the M Photosensitive Drum abrasion level calculated from
the drum film thickness detection results.
The drum film thickness detection results are reflected to the controls
of charging, development and transfer.
Use case - When checking the validity of the setting values for transfer and
development
- When checking the change in the drum film thickness against the
Drum Cartridge life
Display/adj/set range 0 to 20
Unit um
Appropriate target value 0 to 15
THCK-C Display of C Drum abrasion level
Lv.1 Details To display the C Photosensitive Drum abrasion level calculated from
the drum film thickness detection results.
The drum film thickness detection results are reflected to the controls
of charging, development and transfer.
Use case - When checking the validity of the setting values for transfer and
development
- When checking the change in the drum film thickness against the
Drum Cartridge life
Display/adj/set range 0 to 20
Unit um
Appropriate target value 0 to 15
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