Digital BW, The Print

dfaprinting wrote:

>--- In DigitalBlackandWhiteThePrint@yahoogroups.com, Ernst Dinkla 
><E.Dinkla@c...> wrote:
>  
>
>>The 9000 CIS systems that I sold were 650 dollar each. 6 ink lines 
>>directly connected to the internal printer inklines, ink pressure 
>>    
>>
>
>
>When you say directly connected, do you mean take the side off and 
>attach the tubing to the steel ink lines at each side? That's how I 
>have my 9500 done. Bottles are held in a rack behind the printer, 
>hanging from the side of the normal ink holder assembly.
>  
>

Sounds much like the CIS systems I designed 4 years ago. There were some 
pics on the web of my CIS systems.

>The springs may be less tempermental than the bottles I have now. 
>It's a "constant" pressure set-up, but it's effected a little too 
>much by atmospheric changes at the moment. I just haven't bothered to 
>fix that, it doesn't bother me too much, and I'll probably never sell 
>that design. I also just finshed a design for the 4000/76/9600 
>printers where the bottle is attached to the ink carts (just like an 
>insanely expensive system some people may have seen). Nothing tricky 
>about this one, but at least the tubing isn't stuck down through a 
>hole on the top of the bottle and held in place by hot glue. I'm 
>hoping that this bottle and the better inks will be able to 
>revitalize those printers. Also trying to decide if there is a market 
>for such a bottle system (cheap). From the looks of ebay, it doesn't 
>seem like there is much market for them. There are a few clear cart 
>designs on there now, but none seem to move (most are too expensive).
>
The membranes on the dampers will even out the small pressure 
differences still existing in the gravity fed printers. It may be 
different on the pressurised carts systems.

I had the tubes through the neck of the bottles, not through the caps, 
that's easier when refilling and suited the rest of the spring chamber 
design.

The 9600 cart design is already excellent for refilling and the monthly 
shake. The same for the 10000 and I think the new carts will have much 
similarity in design to the last. CIS systems for desktop printers 
remains interesting, I doubt it will be interesting for the wide 
formats. For the 9000/9500 there were good reasons for a CIS, lousy 
seals - inkslot needles and electronics below the inkslot, that's not an 
invitation for refilling. Syringe + fine needle had to be used. The 9600 
and 10000 carts almost suck the ink in ...


Ernst