Canon imageRUNNER ADVANCE 9070 PRO series Service Manual Digest page 452

COPIER> ADJUST> HV-TR
2TR-TGT4 Sec trns indiv set target currnt: set 4
Lv.2 Details To adjust the target current of secondary transfer for setting 4.
Setting 4 is the combination condition of environment, paper type
(paper weight), color mode and feed side that are set in TR-ENV4,
TR-PPR4, TR-CLR4 and TR-DUP4. When this condition is satisfied,
the target current that is set here is applied to the Secondary
Transfer Outer Roller.
When low-voltage mottled image or toner scattering on solid image
occurs, increase the current.
When high-voltage mottled image or density loss due to excessive
transfer occurs, decrease the current.
As the value is incremented by 1, the current changes by 2 uA.
+: Increase
-: Decrease
Use case When an image failure occurs on all paper types (mottled image,
density loss due to excessive transfer, toner scattering on solid
image, etc.)
Adj/set/operate method Enter the setting value, and then press OK key.
Caution Increase/decrease the value by 1 while checking the symptom each
time.
Display/adj/set range -10 to 10
Unit 2 uA
Default value 0
Related service mode COPIER> ADJUST> HV-TR> TR-ENV4, TR-PPR4, TR-CLR4, TR-
DUP4, 2TR-SHR4
5
5-224
COPIER> ADJUST> HV-TR
2TR-TGT5 Sec trns indiv set target currnt: set 5
Lv.2 Details To adjust the target current of secondary transfer for setting 5.
Setting 5 is the combination condition of environment, paper type
(paper weight), color mode and feed side that are set in TR-ENV5,
TR-PPR5, TR-CLR5 and TR-DUP5. When this condition is satisfied,
the target current that is set here is applied to the Secondary
Transfer Outer Roller.
When low-voltage mottled image or toner scattering on solid image
occurs, increase the current.
When high-voltage mottled image or density loss due to excessive
transfer occurs, decrease the current.
As the value is incremented by 1, the current changes by 2 uA.
+: Increase
-: Decrease
Use case When an image failure occurs on all paper types (mottled image,
density loss due to excessive transfer, toner scattering on solid
image, etc.)
Adj/set/operate method Enter the setting value, and then press OK key.
Caution Increase/decrease the value by 1 while checking the symptom each
time.
Display/adj/set range -10 to 10
Unit 2 uA
Default value 0
Related service mode COPIER> ADJUST> HV-TR> TR-ENV5, TR-PPR5, TR-CLR5, TR-
DUP5, 2TR-SHR5