Samsung ProXpress M387 Series - Page 156

4.AlignmentandTroubleshooting
7)UnevenDensity
Description:Printdensityisunevenbetweenleftandright.
CheckandcauseSolution
•Thepressureforceontheleftandrightspringsofthe
transferrollerisnoteven.
•Thespringsaredamaged.
•Thetransferrollerisimproperlyinstalled.
1)RemovethetransferrollerAssy.
2)CheckifthetransferrollerAssyhasanywrongpart.
3)ReplacethetransferrollerAssy.
Thetonerlevelisnotevenontheimagingunitrollerdue
tothebadblade.
Replacethelasertonercartridgeorimagingunit.
8)Background
Description:Lightdarkbackgroundappearsinwholeareaoftheprinting.
CheckandcauseSolution
Doesrecyclepaperbeused?Usetheproperpapers.
Thelifeofthelasertonercartridgeorimagingunithasbeen
expired
Replacethelasertonercartridgeorimagingunit.
TheoutputfromtheHVPSisabnormal.ReplacetheHVPSboard.
4-73Copyright©1995-2013SAMSUNG.Allrightsreserved.