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Vertical strips (there are vertical continuous or discontinuous strips on the printed manuscript).

Time：

Nov 14,2023

Source：

Author：

Reason:The wipe blade has a gap or there are obvious scratches on the OPC drum; the doctor blade is aged; the corona wire or the primary charge roller is dirty; the upper fixing roller is defective; there is much toner on the magnetic roller.

Solution:Replace the wipe blade or the OPC drum; replace the doctor blade; clean the corona wire or the primary charge roller; check the upper fixing roller; adjust the clearance between the doctor blade and the magnetic roller felt.

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