How to stop an aborted print job?

Know that it is a topic from time to time but googling the list did not bring a solution. I started a print job with the wrong printer and stopped the printer. Went to the Kjobviewer and put the printjob in the trash can. Remembered that the printer should be killed two or three times in order to flush out the remains of the job. Did not work this time. How get I rid of the remains?