Samsung ProXpress M337x Service Manual

Also see for M3375FD: User guide

Contents

4. Alignment and Troubleshooting7) Uneven DensityDescription : Print density is uneven between left and right.Check and cause Solution• The pressure force on the left and right springs of thetransfer roller is not even.• The springs are damaged.• The transfer roller is improperly installed.1) Remove the transfer roller Assy.2) Check if the transfer roller Assy has any wrong part.3) Replace the transfer roller Assy.The toner level is not even on the imaging unit roller dueto the bad blade.Replace the laser toner cartridge or imaging unit.8) BackgroundDescription : Light dark background appears in whole area of the printing.Check and cause SolutionDoes recycle paper be used? Use the proper papers.The life of the laser toner cartridge or imaging unit has beenexpiredReplace the laser toner cartridge or imaging unit.The output from the HVPS is abnormal. Replace the HVPS board.4-73 Copyright© 1995-2013 SAMSUNG. All rights reserved.