Oki C3400n Maintenance Manual

Also see for C3400n: Configuration guide User guide Specifications Network guide User guide

Contents

Oki Data CONFIDENTIAL43163501TH Rev. 1 160 /7.5.3 Image Problem Troubleshooting(1) Color is totally pale (Figure 7.2 A ) .......................................................................... 161(1-1) Color is pale ................................................................................................... 161(2) Background is dirty (Figure 7.2 B ) .......................................................................... 162(2-1) Background is dirty (partly) ............................................................................ 162(2-2) Background is dirty (totally) ............................................................................ 162(3) Blank Print (Figure 7.2 C ) ....................................................................................... 163(3-1) Blank on the whole page ................................................................................ 163(4) Vertical lines are printed .......................................................................................... 164(4-1) Thin vertical lines (with color) (See Figure 7.2 D ) ......................................... 164(4-2) Thin vertical lines (without color) (See Figure 7.2 F ) .................................... 164(5) Cyclic Print Trouble (Refer to Figure 7.2 E ) ........................................................... 165(5-1) Vertical cyclic print trouble ............................................................................. 165(6) Color drift is wide. .................................................................................................... 166(6-1) "ADJUSTING COLOR REGISTRATION" is shown only a short time ............ 166(6-2) Although REG ADJUST TEST of the engine maintenance function is OK,Color drift is seen .................................................................................... 166(7) Solid Black Print ...................................................................................................... 167(7-1) Solid black on a full page ............................................................................... 167Note! When replacing the PU board (PRX PCB), please read the content on the EEPROM chipof the old board and copy it to the new board..Figure 7.2Light or faded imageon whole pageAVertical black belt or lineDDirty BackgroundBDefective image ofregular intervalEBlankCVertical white belt or lineF