PROCESS UNIT hp Color 9850mfp 4.14 the drum Removing and reinstalling A. Screw that must not be removed Note: • Screws that are paint locked are not allowed to be removed. Be careful not to remove them at all costs. [1] [1] [1] III DIS./ASSEMBLY B. Procedure 1. Remove the drum cartridge. (See " 4.13 Replac- ing the drum cartridge .") 2. Remove 2 screws [1] and then remove the drum stay U [2]. [1] [2] 3-46