Maintenance0Y9U-0C9This chapter describes upkeep of the machine, including how to clean the machine and initialize settings.◼ Basic Cleaning Cleaning the Machine(P. 782)● The machine becomes dirty, see Exterior(P. 783) .● Smudge marks appear on originals or printouts, see Platen Glass(P. 784) orFeeder(P. 786) .● Streaks appear on printouts, see Fixing Unit(P. 788) .● Paper jams occur frequently, see Paper Roller(P. 790) .◼ Replacing Toner Cartridges Replacing Toner Cartridges(P. 793)● If you want to use all of the toner, see Using Up Toner(P. 796) .● How to replace toner cartridges, see How to Replace TonerCartridges(P. 798) .◼ Relocating the Machine● Relocating the machine for maintenance or an office move, see Relocatingthe Machine(P. 800) .◼ Managing Print Quality Maintaining and Improving Print Quality(P. 802)● If you want to adjust the gradation for copy jobs, see Adjusting the Gradation and Density for CopyJobs(P. 803) .● If you wan t to adjust the toner density to be used for printing, see Adjusting Print Density(P. 805) .◼ Printing Reports and Lists● Print out reports describing transmission results, or a list of Address Book information, seePrinting Reports and Lists(P. 807) .◼ Checking the Total Pages Printed by the MachineIf you want to check the total page number of printouts, see Viewing the Counter Value(P. 822) .Maintenance780