Horizontal White Line Appears At 120Mm From The Leading Edge Of The Sheet With A Bk Halftone Image - Canon imageRUNNER ADVANCE C5560 Series Troubleshooting Manual

Copier Color | iR-ADV C5560/C5550/C5540/C5535 Series | imageRUNNER ADVANCE C5535, imageRUNNER ADVANCE C5535F,
imageRUNNER ADVANCE C5535i, imageRUNNER ADVANCE C5540, imageRUNNER ADVANCE C5540F, imageRUNNER ADVANCE
C5540i, imageRUNNER ADVANCE C5550, imageRUNNER ADVANCE C5550F, imageRUNNER ADVANCE C5550i, imageRUNNER
ADVANCE C5560, imageRUNNER ADVANCE C5560F, imageRUNNER ADVANCE C5560i
Horizontal white line appears at 120mm from the leading edge of
the sheet with a Bk halftone image
For CE
[Symptom]
When a halftone image is printed out in Bk mode with the setting of Heavy 1 (106-128g/m2), a horizontal white line [a] may appear
at 120mm from the leading edge of the sheet.
The arrow [b] indicates the direction of feeding.
[Cause]
The above mentioned symptom occurs when a sheet of paper rushes into the secondary transfer roller, its impact is propagated
through the ITB to the drum and the speed of the drum fluctuated.
Due to the difference in the primary transfer engagement/disengagement operation, setting up Bk mode Heavy1 (106-128g/m2)
exposes the symptom.
[Service work]
Print out after setting Paper Settings to Heavy2 (129-150gmm2).
2