Canon imageRUNNER ADVANCE C2000 Series Technical Workbook page 136

B) The steps for responding to a transfer residue ghost of the same color
B-1) Change the setting values as described in blue in Row "1" of the table below in accordance with the
toner color of which the transfer residue ghost was confirmed in the step 4), and open and close the
front cover of the main body. This will enable the change of the setting value in Service Mode. As the
transfer residue ghost of Cyan occurred in case of [b] of the sample [C], change the setting value for
Cyan in Service Mode.
Ghost
Settings Image
Sample
1 [c]
2 [c]
3 [c]
[Caution]
With regard to "Adjusting Y/M/C Upstream Auxiliary Brush DC bias" described in (*1) of the above
chart, Service Mode USUB-YDC is for adjusting all of Y/M/C at the same time, and USUB-KDC is for
adjusting only Black.
B-2) Check if the ghost image occurs by outputting a PG49 test print in Full Color Mode.
- If the output has improved, restore the setting values in Service Mode that were changed in the steps
1) to 4), and make 10 copies of the test chart. If the output is normal, the operation is completed.
- If the output has not improved, proceed to step B-3).
B-3) Change the setting values as described in Row "2" of the table above, output a PG49 test print in Full
Color Mode and check if the ghost image has occurred.
- If the output has improved, restore the setting values in Service Mode that were changed in the steps
1) to 4), and make 10 copies of the test chart. If the output is normal, the operation is completed.
- If the output has not improved, proceed to step B-4).
B-4) Change the setting values as described in the row "3" of the table above, output a PG49 test print in
Full Color Mode and check if the ghost image has occurred.
- If the output has improved, restore the setting values in Service Mode that were changed in the steps
1) to 4), and make 10 copies of the test chart. If the output is normal, the operation is completed.
Adjusting Y/M/C Discharge current
Upstream control Y/M/C/K
Auxiliary Brush target current
DC bias adjustment
Adjust > HV-PRI Adjust > HV-PRI
> USUB-
YDC/KDC (*1) TGY/M/C/K
+3
+3
+5
Primary Transfer
ATVC Y/M/C/K
target current
adjustment
(Under Full Color
Mode)
Adjust > HV-TR
> DIS- > 1TR-
TGY/M/C/K4
0 0
+3 +3
+5 +5
TP13 031.pdf
e-Support Filename:
01-28-13
Date:
Setting of toner
deposit amount
Option > IMG-
MCON > TNR-
DWN
2
2
2
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