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Laser printer print defects - faded print / bubbles |
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| Problem |
Cause |
Solution |
How common* |
Comments |
| Faded print/ bubbles |
No drum ground path |
With no ground path, the drum cannot discharge.
The negative charge on the drum repels toner and leaves a white page
with bubble print. 1. Check the drum ground spring and reconnect it,
if necessary. 2. Replace the engine controller board |
8 |
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| *On a scale of 1-10, how often this problem occurs (10 being
most likely). |
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