This is the first time I turn on my mutoh valuejet, the electric power was shutdown at fisrt time I insert the cartridges (I do not have UPS). And after the electric was up again, I powered the system on again, and the system start the process all over again, and ask me to remove the cartridges, and when "Insert InkCartridges" is displayed on the operation panel, I put the InkCartridges to the slot, but no "Ink Refill **%" is displayed. I try to insert and remove several times, but still "Insert InkCartridges" is displayed. Please help me how to solve this error. Should I buy new cartridges or is there another solution? Thank you for your help.