Dell 1135n Multifunction Mono Laser Printer - Manual (Page 74)

While cleaning the inside of the machine, be careful not to damage the transfer roller or any other inside
parts. Do not use solvents such as benzene or thinner to clean. Printing quality problems can occur and
cause damage to the machine.
4. Locate the long strip of glass (LSU) inside the top of the cartridge compartment and gently clean the glass with a
swab.
5. Reinsert the toner cartridge and close the front door.
6. Plug in the power cord and turn the machine on.
Cleaning the scan unit
Keeping the scan unit clean helps ensure the best possible copies. We suggest that you clean the scan unit at the
start of each day and during the day, as needed.
1. Slightly dampen a soft, lint-free cloth or paper towel with water.
2. Open the scanner lid.
3. Wipe the surface of the scanner glass and the document feeder glass until it is clean and dry.
1. Scanner lid
2. Scanner glass
3. Document feeder glass
4. White bar