Chapter 77-37F-7-962)Insert the drum rotating tool [1] that comes with the unit into the slit[3] in the drum shaft [2]. While keeping the drum in place so that itwill not rotate counterclockwise, insert a screwdriver into the centeropening [4] in the drum rotating tool to remove the drum fixingscrew.F-7-97If the drum is let to rotate coun-terclockwise, the cleaning blade will notcome into contact with the drum correctly, leading to cleaning faults. Besure to fix the drum in place first before removing the drum fixing screwto avoid the problem.MEMO:If the hopper assembly is re-leased but not removed, be sure to open theright upper cover and the right lower cover so that there will be space.3) Turn the fixing feed unit releasing lever [1] counterclockwise torelease the lock; then, hold the lever [1], and slide out the fixing feedunit [2] toward the front until it stops. (At this time, the duplexingfeed unit will also slide out.)F-7-984) Slide out the process unit [1] until it stops.F-7-997.10.6.5 Removing the Primary Charging Assembly0009-56451) Loosen the screw [1], move the corona assembly fixture [2] to thedirection of the arrow (upper right), and fix again.2) Remove the connector [3] and pull out the primary corona assembly[4].F-7-100If you have replaced the primary charging wire or the primary chargingassembly, be sure to execute the following in service mode to clean thewire:COPIER> FUNCTION> CLEANING> WIRE-CLN.Further, be user to use a strengthened polishing pad (blue holder) as thecleaning pad.[1][2][2][4][3] [2][1][1] [2][1][3] [4] [2][1]