Diagnostic information 2-119
5021-0XX
Vertical staggering image service check
Printed image staggers in vertical direction.
Problem area Action
1 Printer vibration Check for printer vibrations or shock
to printer.
2 Laser unit assembly
(printhead)
Optical unit failure caused by
vibration from scanner motor rotation.
Replace laser unit assembly. See
“Laser unit assembly (printhead)
removal” on page 4-24.
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