Digital BW, The Print

I have a 4000 and these refillable carts.  Sorry about your customer 
service problems.

Does your printer recognize the carts if you press them in further and 
hold them there?  I had a similar issue with my carts.  I just ghetto 
rigged it - I looped blue painters tape top to bottom over the end of 
carts while inserted and pulled them tighter into the printer.  While 
it doesn't look very pleasing, it gets the job done and that's about 
all I'm interested in.