9.Image Quality Problem: Lines
567
A constant straight line appears from the leading edge to the trailing edge of the page.
A line appears at the same position on all pages.
A line appears on a specific color page.
Cause
1. The toner shield glass is dirty.
White streaks appear because the toner shield glass is dirty, which causes the radiated light to be
uneven.
2. The charger unit is dirty or has reached the end of PM life.
White streaks appear because the charger unit is dirty or has reached the end of PM life, which
causes the charging to be uneven.
3. Foreign object stuck in the development unit gap
White streaks appear because there is a foreign object stuck in the development unit gap, which
causes the absence of toner on the development roller.
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