pg. 12
- If the output has not improved, proceed with the step B-3).
B-3) Change the setting values as described in the 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 sheet. If the output is normal, the operation is completed.
- If the output has not improved, proceed with the 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 sheet. If the output is normal, the operation is completed.
- If the output has not improved, refer to FAQ titled "Drum ghost due to advanced life of Drum Unit with high
duty/high CV."
C) The step for responding to the transfer residue ghost of only Black
C-1) As the transfer residue ghost of Black [c] in the sample [D] was confirmed in the step 6), change
the setting values as described in green in the row "1" of the table below, and open and close the
front cover of the main body. This will enable the change of the setting value in Service Mode.
D)
Settings
Ghost
Image
Sample
Adjust Bk
Upstream Auxiliary
Brush DC bias
Discharge current control
Y/M/C/K target current
adjustment
Primary Transfer ATVC Bk
target current adjustment
(Under Black & White Color
Mode)
Adjust > HV-PRI >
USUB-KDC
Adjust > HV-PRI >
DIS-TGY/M/C/K
Adjust > HV-TR >
1TR-TGK1
1
[d]
+3
0
0
2
[d]
+3
+3
+3
3
[d]
+5
+5
+5
C-2) Check if the ghost image occurs by outputting a PG49 test print in Black and White 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 sheet. If the output is normal, the operation is completed.
- If the output has not improved, proceed with the step C-3).
C-3) Change the setting values as described in the row "2" of the table above, output a PG49 test print in
Black and White 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 sheet. If the output is normal, the operation is completed.
- If the output has not improved, proceed with the step C-4).
C-4) Change the setting values as described in the row "3" of the table above, output a PG49 test print in
Black and White 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 sheet. If the output is normal, the operation is completed.
