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White Spot
Is it regular
interval of 94mm?
YES
Obstacles stuck on OPC's
surface
-> Clean the OPC and
machine or replace
developer
When putting in/out the
developer, scratch is made
-> Replace the developer
Samsung Electronics
Transfer
NO
voltage is normal?
D/R in developing unit has
the defect
-> Replace the developer
NO
YES
Maintenance & Troubleshooting
Too high voltage supplied
due to the setting error of
transfer voltage
-> Adjust/replace Engine B'd
4-19
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