HP Indigo WS6000 Digital Press - Cleaning the ink pumps

• Wastebasket or tray lined with plastic liner to hold the ink pump unit
• Wash basin
• Fine cleaning brush
• Density sensor cleaning paper

  caution:

Wear safety glasses and ink resistant (nitrile) gloves for this procedure.

1. Go to Standby, and press an Emergency Stop button.
2. Disconnect the two water connections.
3. Remove the ink tank from the ink cabinet.
4. Remove the ink pump from the ink tank.
5. Place the ink pump in the wash basin or in a plastic-lined tray.

   note:

   Do not remove the filter from the pump. The plastic holder can break.

6. Clean the filter, magnets, and other area of the pump using imaging oil:

   • Use a nylon brush to clean the inside of the ink outlet.
   • Use clean imaging oil to remove the ink waste.
   • Clean the density sensor slit with density sensor cleaning paper.
   • Clean the sensor with imaging oil and a nylon brush.
7. Reinstall the ink pump unit into the ink tank, and reinstall the ink tank into the press.
8. Connect the two water hoses.
9. Release the Emergency Stop button.