Chapter 77-13F-7-18Reference:Timing of Cleaning Operation[1] when wire cleaning is executed in user mode.[2] at the end of LSTR after making 6000 prints since previous wire cleaning.7.5.1.3 Others 0010-8052iR7105 / iR7095 / iR7086SERVICE MODE:- COPIER> ADJUST> HV-PRI> GRID (grid bias output adjustment input)If the DC controller PCB has been replaced or the RAM on the DC controller PCB has been initialized, enter the value indicated on the service label.ERROR CODE:- E065 (primary charging output error)Indicates that over-current has been detected (PRIMARY_ERR=1) because of leakage.7.5.2 Dust-Collecting Roller Bias7.5.2.1 Outline 0010-8053iR7105 / iR7095 / iR7086The following is associated with the dust-colleting roller bias control system:[1] enabling/disabling the dust-collecting roller biasThe following shows the construction of the control system that relates to the dust-collecting roller bias:Primary charging assemblyWirePrimary charging wirecleaning motor M8DC controller PCBrear direction front direction16711PRIMARY_W.C_BKPRIMARY_W.C_FWJ502AWire cleanerWhen '1', the wire cleaner moves toward the front.When '1', the wire cleaner moves toward the rear.