Digital BW, The Print

Hi All,

Well it´s finally (after 3 weeks) happened to me!  I turned on my 
Epson 1280 (I'm using MIS VM inks in pre-filled cartridges) and ran a 
quick nozzle check, which showed some banding with the black ink.  
After doing a head cleaning, the next nozzle check was worse and now, 
after 4-5 cleanings with some prints of the purge pattern imbetween, 
I'm getting practically nothing!  

I know everyone's written a lot about cleaning the print heads.  I'm 
a real novice "under the hood" of my printer and don't know exactly 
how to go about it.  Should I first just let the printer sit overnite?
I printed yesterday just fine, and the cartridges are about 1/2 
full.  I'd really appreciate some advice and a list of steps to 
follow if I do need to clean the heads myself.  (I'm not even sure 
how one gets them in the correct position to clean!)

Thank you!

Bob