VI - 20
Trouble Action to be taken
(5) Black and blurred vertical
stripes At the scanner
Check the following components:
-CIS unit
At the printer side
lClean the paper path which may be contaminated with toner.
lSlide the wire cleaner tab to clean the corona wire inside the
drum unit.
lMake sure that the wire cleaner tab is returned to its home
position.
lReplace the drum unit.
lReplace the heat-fixing unit.
(6) Black and blurred
horizontal stripes At the printer side
lIf the horizontal stripes appear at 94-mm or 17-mm intervals,
replace the drum unit.
lIf 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
lReplace the drum unit.
(8) Dropout At the printer side
lCheck the connection of the main–high-voltage flat cable.
lReplace the drum unit.
lReplace the high-voltage power supply PCB.