This worked with the older printers. I used to fight clogs when switched to 3rd party 100% pigment ink. The ear syringe and winded or 409 always worked wonders.
That said, I run nozzle cheeks every 3-5 days on birth my 3880's. When I forgo any let them sit idl a few weeks, it took several cleaning cycles and lots of wasted ink to get them unclogged.
InkjetMall has an excellent cleaning fluid for this.