[QUOTE=KellyC;9199]Wow, 5 years of good use out of a 4900 print head is very impressive to say the least!
I am not overly hopeful from what you have explained in your last post that this will be 100% fixable by flushing the system out completely with flush and doing a thorough cleaning of the Capping Station, Wiper Blade and bottom of the print head.
If you decide to take this route, we do not guarantee flushing the system out completely of pigment inks with Piezoflush is going to solve this problem. But it is worth a try, sometimes there is success and sometimes there is not. At the very least, if you could get 8-9 out of 11 channels printing 100% again you could convert this system to a Piezography printer by remapping the QTR curves.
You will need access to WIN to perform the adjustment program, a FULL set of Flush carts and enough flush to fill them (4x 700ML). You will also need a spare set of chips that read FULL because you will need to run at least 2 Initial Fill cycles to move the flush from the carts and through the head thoroughly.[/QUOTE]
Thanks for the quick reply, Kelly.
Can you explain why the repeated Windex treatment reversed the progress made on clearing the clogs?
As I said, the first treatments of Windex got me nine channels at 100%.
Why did subsequent treatments drop out so many nozzles?
Secondly, do you sell a chip resetter for the 4900?
And lastly, if I were to get 8-9 channels back 100%, what’s to say that the piezography inks wouldn’t start to clog up the channels again?
If the print head is on its last legs, why would it hold up as a piezography printer?