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The whole manuscript is illegible.

Time：

Nov 14,2023

Source：

Author：

Reason:The paper is damp; the transcription roller is dirty or aged; the doctor blade edge is aged; the magnetic roller or primary charge roller is worn; the OPC drum is fatigue; the toner is poor.

Solution:Dry the paper; clean or replace the transcription roller; 3–6 replace.

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