Digital BW, The Print

Paul’s latest ink mixtures use a blue+cyan toner to cool the pure-carbon blacks. The blacks are various dilutions of carbon-black (MK or PK).

My questions prior to getting my hands dirty:

1)	Am I correct that these percentages can be applied to volume rather than weight? With various syringes it is easier to be precise with volume.

2)	Is there any disadvantage to mixing significantly more toner (or any of the black dilutions) than needed to fill my cartridges?  (220ml 3880)  Are the mixtures/dilutions more likely to “go bad” in some way than the undiluted inks? Assume that I would agitate the stock (mixed) inks every week or so.

Thanks for the help.
 
Myron (Gochnauer)

PS:  Do any of you have a strong opinion on whether it would be better to use one or the other of the Epson 4880 or 3880 for a b&w-only printer?  The other would be preserved for colour.  Assume that I use only cut paper (3880 does not handle roll paper as does the 4880).

Roll paper aside, the 3880 seems less prone to clogging, but it more difficult to flush and clean the lines and heads with cleaning solution (in cartridges). I cannot see any difference in output quality.