Dell 1125 Mono Laser MFP User Manual page 26

2. Remove the Drum Cartridge by pulling the green handle toward the front of the printer.
3. Hold the drum cartridge in one hand and push the blue toner release lever in the direction shown to free the toner cartridge.
NOTICE: Dispose of the empty toner cartridge in accordance with local authority regulations.
4. Remove the new toner cartridge from its bag. Remove the packing tape and thoroughly shake the cartridge from side-to-side to distribute the toner.
CAUTION: Do not remove the replacement toner from the packaging until the moment of installation to avoid damage.
CAUTION: If toner comes into contact with your clothing, wipe the toner off with a dry cloth and wash your clothing in cold water. Hot water sets
toner into fabric
NOTE: Do not touch the underside of the toner cartridge to avoid soiling your hands. Use the handle on the cartridge to avoid touching this area.
5. Hold the drum cartridge in one hand and push the toner cartridge into the drum cartridge in the direction shown until it clicks into place.
6. Insert the drum cartridge into the printer, using the guiding slots to correctly position the drum. Slide the drum cartridge into the printer until it clicks into
place.