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Trouble Action to be taken
(5) Black and blurred vertical
stripes
At the scanner
Check the following components:
- CIS unit
At the printer side
l Clean the paper path which may be contaminated with toner.
l Slide the wire cleaner tab to clean the corona wire inside the
drum unit.
l Make sure that the wire cleaner tab is returned to its home
position.
l Replace the drum unit.
l Replace the heat-fixing unit.
(6) Black and blurred
horizontal stripes
At the printer side
l If the horizontal stripes appear at 94-mm or 17-mm intervals,
replace the drum unit.
l If they appear at 54-mm intervals, replace the heat-fixing
unit.
(7) White vertical streaks At the scanner
Check the following components:
- CIS unit
At the printer side
l Replace the drum unit.
(8) Dropout At the printer side
l Check the connection of the main–high-voltage flat cable.
l Replace the drum unit.
l Replace the high-voltage power supply PCB.