Cause:
White spots
Coagulated toner and its surroundings are not transferred
Colored streaks
Colored streaks appear due to coagulated toner melting in the development unit.
This may occur if:
• If the machine or toner has been left idle at high temperature (due to long vacation, etc.)
• If the machine has received strong impact
• When moving the machine
• When printing solid-fill images
Solution:
1. Print a solid-fill image in each of 4 colors (cyan, magenta, black, and green) to determine
the color in which white spots appear.
2. Print 30 to 300 full-page, solid-fill A3 sheets for the color in which white spots appear.
Has the problem been resolved?
Yes Finished!
No Go to the next step.
3. Replace the toner bottle of the color in which white spots appear.
4. Print 300 full-page, solid-fill A3 sheets for the color in which white spots appear. Has the
problem been resolved?
Yes Finished!
6. Image Quality Problem: Spots
102
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