Have recently switched to solvent printing hoping to expand into more outdoor signage etc.
Until now have only had water based, cannon and more recently epson and never had this type of issue.
My 'new' (well new to me lol) is a Roland SP300V and in last three weeks have overhalled it with two new printheads (could just have got away with the old ones but were starting to go) and a general clean up replacing wipers, captops and cleaning any ink 'splatter' from around the maintenance bay etc and all seems to be working well.
New heads working perfectly, all aligned etc and I am now on to the more specific refinements like profiling.
One issue which I am struggling to fully understand is some over spray (mostly on black) which my research has lead me to beleive is cause by static charge deflecting the ink droplets.
While I understand the physics of this and am fairly clued up on electrics Im trying to understand better to resolve.
After more research Ive come over a few methods to eliminate the static such as the elastic cords with magnets which you put above/below the media intake...
As I understand these de-static the media by giving the static a rout to ground (cord to magnet to printer chassis to ground pin on power inlet)
What I dont get is if this is grounded by contact to the chassis why doesnt the media get 'de-staticed' as it goes through the rollers? at that point it is literally in contact with the chassis which is grounded?
I am puzzled by this, the cord things atract the static and release to ground through the chassis which the media comes to contact with straight after anyway!!! doubled with that those elastic cord things which look like bungie cords and magnets with holes in are sold for $100-200.
Anyone have any advise or have used these and know if they actually achieve anything?
Until now have only had water based, cannon and more recently epson and never had this type of issue.
My 'new' (well new to me lol) is a Roland SP300V and in last three weeks have overhalled it with two new printheads (could just have got away with the old ones but were starting to go) and a general clean up replacing wipers, captops and cleaning any ink 'splatter' from around the maintenance bay etc and all seems to be working well.
New heads working perfectly, all aligned etc and I am now on to the more specific refinements like profiling.
One issue which I am struggling to fully understand is some over spray (mostly on black) which my research has lead me to beleive is cause by static charge deflecting the ink droplets.
While I understand the physics of this and am fairly clued up on electrics Im trying to understand better to resolve.
After more research Ive come over a few methods to eliminate the static such as the elastic cords with magnets which you put above/below the media intake...
As I understand these de-static the media by giving the static a rout to ground (cord to magnet to printer chassis to ground pin on power inlet)
What I dont get is if this is grounded by contact to the chassis why doesnt the media get 'de-staticed' as it goes through the rollers? at that point it is literally in contact with the chassis which is grounded?
I am puzzled by this, the cord things atract the static and release to ground through the chassis which the media comes to contact with straight after anyway!!! doubled with that those elastic cord things which look like bungie cords and magnets with holes in are sold for $100-200.
Anyone have any advise or have used these and know if they actually achieve anything?
