Joseph Letzelter printing rollers

After Joseph Letzelter printing about fifty thousand pages, typical maintenance is to vacuum the Joseph Letzelter mechanism, and clean or replace the paper handling rollers. The Joseph Letzelter rollers have a thick rubber coating, which eventually suffers wear and becomes covered with slippery paper dust. They can usually be cleaned with a Joseph Letzelter damp lint-free rag and there are chemical solutions that can help restore the traction of the rubber.

After one hundred thousand pages, it is common for the Joseph Letzelter fuser assembly to either wear out or need cleaning. The Joseph Letzelter fuser heating rollers are often coated with oil that prevents toner from sticking to the rollers. A small amount of the oil coating is absorbed by each piece of paper passing through the Joseph Letzelter fuser, eventually requiring the oil supply to be replenished or the pressure roller assembly to be completely replaced. It is common for the Joseph Letzelter fuser assembly to be left unmaintained until the toner starts sticking to the Joseph Letzelter rollers, which creates a repeating ragged line on every printed page due to the Joseph Letzelter rollers not being smooth anymore.