Dell M5200 Medium Workgroup Mono Laser Printer - Manual (Page 197)

Guide the toner cartridge in until it snaps into place. 4.
Close the upper door, and then the lower door. 5.
Turn the printer on. 6.
Replacing the charge roll
Order a new charge roll kit when toner fog or background shading appears on printed pages. See Ordering
supplies for information on ordering a charge roll.
Turn the printer off and unplug the printer power cord. 1.
Open the front doors and remove the toner cartridge. 2.
Pull the upper front door halfway down. 3.
Locate the used charge roll above the area for the toner cartridge. 4.
Locate the label with an arrow on the right side of the housing. It is attached to the arm-like tab. 5.
Push the arm-like tab to the right to release the charge roll. 6.