Electric　field　assisted　Fused　Deposition　Modeling　(E-FDM)　is　a　promising　technique　in　the　field　of　3D　printing.　However,　large　nodes　often　appear　in　the　start-up　stage　of　printing.　When　the　interval　between　thin　lines　is　small,　large　nodes　will　seriously　affect　the　subsequent　printing.　In　this　paper,　we　will　present　a　method　to　avoid　large　nodes　in　start-up　printing　according　to　studies　the　start-up　stage　of　the　printing.　The　startup　stage　is　a　process　of　liquid　gradually　deforming　and　initially　contacting　the　substrate　under　the　action　of　electric　stress.　Polycaprolactone　(PCL),　a　popular　material　for　bio-medicine,　is　selected　as　the　printing　material.　With　a　home-build　E-FDM　system,　the　nozzle　substrate　distance　is　fixed,　and　the　nozzle　and　substrate　temperatures　are　holding　steady.　With　a　photography　system,　the　process　of　meniscus　deformation　is　recorded.　And　by　image　processing　methods,　the　meniscus　length　and　volume　of　liquid　at　the　nozzle　can　be　obtained.　At　a　set　of　initial　liquid　volumes　(Vi),　nozzle　voltage　is　ramped　to　a　fixed　value　at　a　fixed　rate.　The　effects　of　Vi　on　the　meniscus　deformation　during　the　start-up　stage　of　the　printing　are　examined.　For　sufficiently　small　Vi,　the　meniscus　deforms　into　a　cone　shape　(Taylor　cone),　and　a　jet　with　a　diameter　much　smaller　than　the　nozzle　diameter　appears.　For　sufficiently　large　Vi,　the　meniscus　exhibits　a　spindle　shape　when　it　touches　the　substrate.　Through　this　study,　it　is　suggested　that　for　high　resolution　printing,　ramping　the　voltage　at　small　Vi　is　preferable.　©　2020　IEEE.