TASKalfa 3500i - Void Line; Black Band; Vertical Black streaks (Image sample 1)

1. Vertical Black streaks (Image sample 1)
It occurs continuously and linearly toward the paper feeding direction.
Please remove the transfer belt unit and check whether the transfer belt is cracked.
1. When the transfer belt is torn or cracked, please replace the drum unit and the transfer belt unit.
2．Check the firmware version (U019) and upgrade it higher than Upgrade Pack Ver. V4.00
Image sample 1
Void Line / Black Band
Vertical Black Streak
Condition of tear or crack on the transfer belt
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