1. Always work carefully to avoid nicking or scratching the development roller.
  2. Place the development unit on a sheet of paper after removing it from the main machine.
  3. Never disassemble the development roller assembly. The position of the doctor blade is set with special tools and instruments at the factory to ensure the proper gap between the doctor blade and the development roller.
  4. Clean the drive gears after removing used developer.
  5. Dispose of used developer in accordance with local laws.
  6. Never load types of developer and toner into the development unit other than specified for this model. Doing so will cause poor copy quality and toner scattering.
  7. After the development unit has been completely filled with fresh developer and the counter has been reset to zero, the machine initializes the TD sensor automatically as soon as the front doors are closed. After the TD sensor has been initialized, the machine will automatically execute process control. If a problem occurs during either initialization phase, the machine will issue an SC code. Refer to the SC code table to solve the problem. After correcting the problem, execute SP3030-001 to initialize the TD sensor, and then do SP3011-002 to execute initial process control.
  8. When using a vacuum cleaner to clean the development unit casing, always ground the casing with your fingers to avoid damaging the toner density sensor with static electricity.