Samsung MultiXpress X4 Series Service Manual page 491

A3 color copier
Table of Contents

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Step
Cause
3
The path of laser beam is blocked.
Foreign substance is on the LSU window.
4
OPC is scratched.
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Action
Clean the LSU window.
(Refer to 3.2.1.2.)
Replace the Drum Unit.
(Refer to 3.2.2.1.)
4. Troubleshooting
4-241

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