Digital BW, The Print

pr_roark wrote:
> Ernst Dinkla wrote:
> 
>> ... a 9000 that hasn't been used for almost a year.
>> Was loaded with a custom mix of inks: the Eboni channel was 
>> still open, the Sepia channel too which was a mix of Epson 
>> Archival (9500) pigment yellow + light magenta, the MIS 
>> Photo Black is still not open on all nozzles and the tube 
>> was actually blocked, the greys and the blue all MIS mixes 
>> somewhere in between.
>>
> 
> I think my MIS PK nozzles are the most likely to have gaps.  I 
> speculate that the combination of the high load and amount of binder 
> needed to retain a gloss conspire.  I may have seen the highest 
> frequency when the MIS PK is next to the Eboni -- but this is 
> uncertain.  On printers where I have extra channels, like the 1800, 
> I'm thinking of isolating the PK with cleaning fluid on at least one 
> side of the PK.
> 
> Paul
> www.PaulRoark.com 

Which makes the decision by HP to add a GE channel to the 
Z3100 a wise one. They did not separate the PK from the 
other inks with the GE in between but the PK is on the same 
head the Light Grey is. Anyway the capping station system is 
of a totally other construction than Epson's too so hard to 
compare on how inks could get mixed.

-- 
Met vriendelijke groeten, Ernst


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