Digital BW, The Print

I have just replaced the 6 dampers in a 7000 my first time. The old dampers 
of course had ink in them, the new dampers do not. How do they fill? When I 
turn on the printer? They don't seem very tight, are they supposed to snap in?
I suspect if there is not a good vacum than its not going work.
Wondering what to expect at this point and afraid to go further.
Steve M.


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