I just purchased a used SP-540V.  I am new to solvent printing.  I have used the HP large format water based printers.  When I purchased the printer it was showing signs of banding, but I had seen this on my HP, so I thought I would be able to correct it through settings.  Anyway, I've learned a lot since then.  My test print shows the cyan, magenta and yellow to be very good, but the black is fuzzy with the nozzles being redirected and a few dropouts.  I've tried medium cleans, powerful cleans, and soaking the heads in the captops.  Nothing seems to work.  I have ordered some cleaning cartridges, hoping that may be the solution.  
 
Does anyone have any experience using them? Will they help? If so, what is the process to use them? I can't find it anywhere.
 
Jeff
	
		
			
		
		
	
			
			Does anyone have any experience using them? Will they help? If so, what is the process to use them? I can't find it anywhere.
Jeff