
[Caution] The change of this setting that lowers the secondary transfer voltage of the paper leading edge part (the range of
correction amount) of all the output sheets may result in a mottling image with a high density image.
b-2) Output the image having shown the symptom, and check that the symptom does not occur.
If the symptom has not improved sufficiently, fine-tune the setting values in the steps b-1)
c) Lower the secondary transfer voltage applied to leading edge with customized settings.
The secondary transfer voltage setting works only when all the conditions (mode/environment/paper type) registered beforehand
are met.
16 different patterns can be set from "TR-DUP1" to "TR-DUP16".
The below procedure is to set "TR-DUP1".
c-1) Go to Service mode (Level 2) > Mode List > COPIER > Adjust > HV-TR > and change the setting value of "TR-DUP1".
- If the symptom occurs in 1-sided mode, change the value to "31".
- If the symptom occurs on the second side in auto 2-sided mode, change the value to "32".
- If the symptom occurs on the second side in multi-purpose tray 2-sided mode, change the value to "33".
The range of setting is from "11" to "43" ("11" by default).
c-2) Go to Service mode (Level 2) > Mode List > COPIER > Adjust > HV-TR > and change the setting value of " TR-ENV1".
- If the issue occurs in a low humidity environment (under 6.11g/m3), make sure that the value is set to "1".
- If the issue occurs in a normal humidity environment (from 6.12 to 15.68g/m3), make sure that the value is set to "2".
- If the issue occurs in a high humidity environment (over 15.69g/m3), make sure that the value is set to"3".
The range of setting is from "1" to "3" ("1" by default).
[Reference] Absolute moisture content (g/m3) can be checked in Service Mode > Mode List > COPIER > Display > ANALOG >
"ABS-HUM".
c-3) Choose the appropriate value from among the below tables according to the used paper type and apply it to the setting value
of Service mode (Level 2) > Mode List > COPIER > Adjust > HV-TR > "TR-PPR1".
The range of setting is from "1" to "25" ("1" by default).
c-4) Go to Service mode (Level 2) > Mode List > COPIER > Adjust > HV-TR > and change the setting value of "TR-VL1" to "-5".
The range of setting is from "-128" to "+127" ("0" by default).
Change the setting value by "1" changes the secondary transfer voltage 30V.
[Caution] The secondary transfer voltage of the paper leading edge part is lowered and a mottling image may occur with a high
density image.
If the symptom does not improve sufficiently, reduce the setting value in the step c-4) by "5" at a time down to "-30" until the
symptom improves enough.
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