Digital BW, The Print

I think there may be a dirty little story here to go with the "blues" 
(on the seleniums) and the fading blacks, both of which I've 
experienced.  Using the prefilled carts for the 1280, with both the 
PT Selenium and the PT Warm Neutrals (which I reluctantly got when 
the Selenium cartridges proved hopeless), I've found that the very 
light yellow print lines in a nozzle check become even lighter after 
a few days (despite regular nozzle checks and at least a full pix 
print at least every day), and the stepwedge goes from showing a 
nice, linear progression of tone from 0 to 5, 10, 15, 20, 25 to 
almost just plain no ink being laid dowm from 0 to 20, and then a 
relatively normal wedge from 25 up. 

Something is going on with the light ink in the "yellow" position, at 
least for me. 

Anyone else finding this?

Bill Iverson

--- In DigitalBlackandWhiteThePrint@y..., "biw3450" <bwolf@e...> 
wrote:
> Have resently purchased Piezotone WN ink set. Clean heads 20+ times 
> to clear Epson 1280 color inks. When I print head check the yellow 
> position is almost non-existent. Made about 10 large prints that 
look 
> good but wondering if I'm not missing some of the tonality because 
of 
> the very faint yellow position head.