Canon imageRUNNER ADVANCE C255 Series Service Manual page 670

COPIER (Service mode for copier) > ADJUST (Adjustment mode) > HV-TR
1TR-TGK4 2
Detail
Use Case
Adj/Set/Operate Method
Display/Adj/Set Range
Unit
Default Value
Related Service Mode
Supplement/Memo
Amount of Change per
Unit
2TR-OFF 1
Detail
Use Case
Adj/Set/Operate Method
Caution
Display/Adj/Set Range
Unit
Default Value
Related Service Mode
Amount of Change per
Unit
1TR-TGY2 2
Detail
Use Case
Adj/Set/Operate Method
Caution
Display/Adj/Set Range
Unit
Default Value
Related Service Mode
Amount of Change per
Unit
Bk-c pry trn ATVC tgt crrnt:pln/rcycl1,2
To adjust the offset of the target current value for Bk-color (color) upon primary transfer ATVC
control for plain paper 1, 2/recycled paper 1, 2 (which paper width is A4 or larger).
Increase the value when spots, mottled image, or image failure due to insufficient transfer current
occurs.
Decrease the value when image fogging due to transfer memory or drum memory due to strong
transfer current occurs.
When an image failure due to the primary transfer occurs
Enter the setting value (switch negative/positive by -/+ key) and press OK key.
-50 to 50
uA
0
COPIER> ADJUST> HV-TR> 1TR-TK43
For iR-ADV C250 series, adjustment results by 1TR-TGK4 and 1TR-TK43 are linked with each
other so that their values are the same.
1
Uniform adj sec trn ATVC ppr allot voltg
To uniformly adjust paper allotted voltage in secondary transfer ATVC control regardless of paper
type, 1st/2nd side or environment.
When transfer failure occurs on an image, increase/decrease the value in the -30 to 30 (-900 to
900 V) range in increments of 10 (30 V).
When white dots occur on an image, increase/decrease the value in the -100 to -10 (-3000 to -300
V) range in increments of 10 (30 V). When the value is decreased too much, transfer failure occurs.
When similar image failures occur regardless of the conditions
Enter the setting value (switch negative/positive by -/+ key) and press OK key.
The setting is applied to all paper types and both sides of paper. When limiting the condition, be
sure to make settings individually.
-128 to 127
V
0
COPIER> ADJUST> HV-TR> 2TR-Nx-1/2, 2TR-Rx-1/2, 2TR-Hx-1/2, 2TR-Cx-1/2, 2TR-P-1/2,
2TR-O-1/2, 2TR-PA-1/2, 2TR-B-1/2, 2TR-LA-1/2, 2TR-CP-1/2
30
Adj Y pry trns ATVC tgt crrnt: other ppr
To adjust the offset of the target current value for Y-color upon primary transfer ATVC control for
other types of papers.
Increase the value when spots, mottled image, or image failure due to insufficient transfer current
occurs.
Decrease the value when image fogging due to transfer memory or drum memory due to strong
transfer current occurs.
When an image failure due to the primary transfer occurs
1) Enter the setting value (switch negative/positive by -/+ key) and press OK key.
2) Turn OFF/ON the main power switch.
To reflect the setting immediately, execute primary ATVC control.
-50 to 50
uA
0
COPIER> FUNCTION> MISC-P> 1ATVC-EX
1
659
8. Service Mode