B6500 Userís Guide> 12Internal View5 Rear output trayleverWhen the rear tray has been installed, the paperoutput location can be switched between it and thecenter output tray. Raise the lever to output to therear tray and lower the lever to output to the centeroutput tray.6 A4 universal tray Can install up to two levels of an Letter/A4universal tray (550) to this printer.7 Right detachablecoverRemove this when installing optional accessoriessuch as hard disk and additional memory.no. Name Description1 Paper stopper Raise this when printing on paper larger than A4 size.2 Drum/tonercartridgeContains the toner and the photosensitive drum.3 Cover A Open this when replacing the drum/toner cartridgeand removing jammed paper.4 Fuser unit Fixes the toner on the paper. Do not touch this whenusing the printer as it is hot.5 Transfer rollcartridgeTransfers the toner image on the surface of thephotosensitive drum to the paper.6 Cover B Open this when removing jammed paper.No. Name Description5321 4 6