IBM Infoprint Color 8 User Manual page 42

Vertical black or color lines.
Reason:
Toner is low.
Solution:
Replace the toner cartridge.
Reason:
Scratched image drum.
Solution:
Replace the image drum cartridge for the
color of the lines.
Reason:
Hardware problem.
Solution:
Contact your service representative.
Click here for service information.
Fuzzy print.
Reason:
The LED arrays are dirty.
Solution:
Clean the LED array.
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