If the print cartridge is not installed in the imprinter, the following is displayed on the operator panel.

• For the LCD

  An error code, error details, and a solution for the problem are displayed on the LCD.

  Error Code	Error Details and the Solution
  U6:B4	U6:B4 Error Print cartridge not installed Check if the Print Cartridge is mounted correctly.

• For the Function Number Display

  An alphabetical character and a number for the error code are displayed alternately on the Function Number Display.

  Error Code	Error Details (displayed in the Error Recovery Guide window)
  U6	Print cartridge not installed

Refer to the fi-819PRB Imprinter Operator Guide to install the print cartridge.