CHAPTER 4 IMAGE FORMATION SYSTEM4–36 COPYRIGHT © 1998 CANON INC. CANON NP7161/NP7160 REV.0 AUG. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)3. Adjusting the Height of theCharging WiresTo adjust each charging wire, turn itsrespective height adjusting screw. A full turnon the screw will change the height of theprimary charging wire by about 0.5 mm andthat of the transfer charging wire by about 0.7mm.Figure 4-322• Transfer Charging AssemblyFigure 4-323b• Primary Charging AssemblyFigure 4-323aHeight adjustingscrewHeight adjustingscrewHeight adjustingscrewHeight adjustingscrewChargingassemblyHeight of chargingwire (mm)RangePrimary 1.0mm11.0 0.2mm9.5 0.2mmTransfer 1.0mm