Cause
When a sheet of paper is transported, it sometimes contacts the leading edge of the separation plate at the fusing nip exit. This causes the vertical gloss streaks for solid images due to the paper rubbing against the separation plate.
[A]: A sheet of paper
[B]: Separation plate
[C]: Paper rubbing against the separation plate
This is likely to occur if:
When using the coated paper which is the paper weight 2, 3 or 4
