You're probably wiping with solvent on your lint free cloth and some of the colors smear and mix with the solvent. The first pass is purging all that color and solvent out. The best thing to do, if you flushing regularly, is flush, purge twice at 2-3econds and then wipe with a dry cloth. Or to get it really clean, flush, purge once at 2-3 seconds then wipe with solvent cloth, purge again 2-3 seconds, then wipe with dry cloth. Let me know if you have any other questions about your Gandi. I've been running a 3150 for 5 years and a AGFA 1224 HDC for a year.